MXPA06007794A - Medium chain peroxycarboxylic acid compositions - Google Patents

Medium chain peroxycarboxylic acid compositions

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Publication number
MXPA06007794A
MXPA06007794A MXPA/A/2006/007794A MXPA06007794A MXPA06007794A MX PA06007794 A MXPA06007794 A MX PA06007794A MX PA06007794 A MXPA06007794 A MX PA06007794A MX PA06007794 A MXPA06007794 A MX PA06007794A
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MX
Mexico
Prior art keywords
acid
weight
medium chain
composition according
composition
Prior art date
Application number
MXPA/A/2006/007794A
Other languages
Spanish (es)
Inventor
E Lentsch Steven
F Man Victor
P Magnuson Joshua
Original Assignee
Ecolab Inc
E Lentsch Steven
P Magnuson Joshua
F Man Victor
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Application filed by Ecolab Inc, E Lentsch Steven, P Magnuson Joshua, F Man Victor filed Critical Ecolab Inc
Publication of MXPA06007794A publication Critical patent/MXPA06007794A/en

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Abstract

The present invention relates to compositions including medium chain peroxycarboxylic acid, methods for making these compositions, and methods for reducing the population of a microorganism. The compositions can include advantageously high levels of the medium chain peroxycarboxylic acid, can be readily made, and/or can exhibit reduced odor.

Description

COMPOSITIONS OF PEROXICARBOXYLIC ACID OF AVERAGE CHAIN Field of the Invention The present invention relates to compositions that include medium chain peroxycarboxylic acid, method for making these compositions, and methods for reducing the population of a microorganism. The compositions may advantageously include high levels of medium chain peroxycarboxylic acid, may be easily made, and / or may exhibit reduced odor.
Background of the Invention Conventional peroxycarboxylic acid compositions typically include short chain peroxycarboxylic acids or mixtures of short chain peroxycarboxylic acids and medium chain peroxycarboxylic acids (see, e.g., U.S. Patent Nos. 5,200,189, 5,314,687, 5,409,713, 5,437,868, 5,489,434, 6,674,538, 6,010,729, 6,111,963, and 6,514,556). Typically, conventional mixed peroxycarboxylic acid compositions include large amounts of short chain carboxylic acid and only limited amounts of medium chain peroxycarboxylic acid relative to the corresponding medium chain peroxycarboxylic acid.
Ongoing research efforts have sought improved peroxycarboxylic acid compositions. In particular, these efforts have sought compositions having increased levels of medium chain peroxycarboxylic acid, which can be easily made, or which have reduced odor compared to conventional compositions including short chain carboxylic and peroxycarboxylic acids.
Compendium of the Invention The present invention relates to compositions that include medium chain peroxycarboxylic acid, methods for making these compositions, and methods for reducing the population of a microorganism. In certain embodiments, the compositions may advantageously include high levels of the medium chain peroxycarboxylic acid, may be easily made, and / or may exhibit reduced odor. In one embodiment, the compositions herein can include medium chain peroxycarboxylic acid, medium chain carboxylic acid, a carrier and a solubilizer. In certain embodiments, the compositions herein include about 2 or more parts of medium chain peroxycarboxylic acid per 7 parts of medium chain carboxylic acid; about 2 or more parts of medium chain peroxycarboxylic acid per 5 parts of medium chain carboxylic acid; about 2 or more parts of medium chain peroxycarboxylic acid per 4 parts of medium chain carboxylic acid; or about 2 parts of medium chain peroxycarboxylic acid per 3 parts of the medium chain carboxylic acid. In one embodiment, the solubilizer includes a solvent, surfactant, or a mixture thereof. In one embodiment, the surfactant solubilizer includes a microemulsion-forming surfactant, for example, an anionic surfactant. In one embodiment, the composition includes a microemulsion. In one embodiment, the solubilizer includes polyalkylene oxide, polyalkylene oxide blocked at its terminus, nonionic surfactant, anionic surfactant, or mixture thereof. In one embodiment, the solvent solubilizer includes polyalkylene oxide, blocked end polyalkylene oxide, nonionic surfactant, or mixture thereof. In one embodiment, the compositions herein do not include only insignificant, or relatively small, amounts of short chain peroxycarboxylic acid, short chain carboxylic acid, or mixtures thereof. For example, in one embodiment, the composition can be substantially free of added short chain carboxylic acid, short chain peroxycarboxylic acid, or mixture thereof. For example, in one embodiment, the composition may be substantially free of short chain carboxylic acid added, short chain peroxycarboxylic acid, or a mixture thereof. For example, in one embodiment, the composition may include short chain carboxylic acid, short chain peroxycarboxylic acid, or a mixture thereof, at an insufficient level to solubilize the medium chain peroxycarboxylic acid. For example, in one embodiment, the composition may include short chain carboxylic acid, short chain peroxycarboxylic acid, or a mixture thereof, at an insufficient level to cause an objectionable odor. For example, in one embodiment, the composition may include about 1 or more parts of medium chain peroxycarboxylic acid per 8 parts of short chain carboxylic acid, short chain peroxycarboxylic acid, or a mixture thereof. In one embodiment, the composition also includes an oxidation agent, inorganic acid, stabilizing agent, other auxiliary or additive, or a mixture thereof. In one embodiment, the present invention includes a method for making a medium chain peroxycarboxylic acid composition. The method can include reacting the medium chain carboxylic acid and the oxidizing agent in the presence of a vehicle, solubilizer, acidulant, stabilizing agent, or a mixture thereof. The method can advantageously form high levels of medium chain peroxycarboxylic acids in advantageously short times. For example, in one embodiment, the method herein includes converting 20% or more of the medium chain carboxylic acid to the medium chain peroxycarboxylic acid in about 24 hours or less. For example, in one embodiment, the method herein includes converting about 25% or more of the medium chain carboxylic acid to the medium chain peroxycarboxylic acid in about 24 hours or less. For example, in one embodiment, the method herein includes converting about 30% or more of the medium chain carboxylic acid to the medium chain peroxycarboxylic acid in about 24 hours or less. For example, in one embodiment, the method herein includes converting about 35% or more of the medium chain carboxylic acid to the medium chain peroxycarboxylic acid in about 24 hours or less. For example, in one embodiment, the method herein includes converting about 40% of the medium chain carboxylic acid to the medium chain peroxycarboxylic acid in about 24 hours or less. In one embodiment, the present invention includes a method for using a medium chain peroxycarboxylic acid composition. The method may include contacting an object with the composition of the present (e.g., a use composition) and may result in the reduction of the population of one or more microorganisms on the object.
Brief Description of the Drawings Figure 1 is a diagram of a beverage plant, including a cold aseptic filling plant, where both carbonated and non-carbonated beverages can be prepared and bottled.
Detailed description of the invention Definitions As used herein, the phrase "medium chain carboxylic acid" refers to a carboxylic acid that: 1) has reduced or lacks odor compared to the bad, pungent or acrid odor associated with an equal concentration of chain carboxylic acid short, and 2) has a critical micelle concentration greater than 1 mM in aqueous pH regulators at a neutral pH. Medium chain carboxylic acids exclude carboxylic acids that are infinitely soluble in or miscible with water at 20 ° C. Medium chain carboxylic acids include carboxylic acids with boiling points (at a pressure of 760 mm Hg) of 180 to 300 ° C. In one embodiment, the medium chain carboxylic acids include carboxylic acids with boiling points (at a pressure of 760 mm Hg) of 200 to 300 ° C. In one embodiment, the medium chain carboxylic acids include those with a solubility in water of less than 1 g / L at 25 ° C. Examples of medium chain carboxylic acids include pentanoic acid, hexanoic acid, heptanoic acid, octanoic acid, nonanoic acid, decanoic acid, undecanoic acid, and dodecanoic acid. As used herein, the phrase "medium chain peroxycarboxylic acid" refers to the peroxycarboxylic acid form of a medium chain carboxylic acid. As used herein, the phrase "short chain carboxylic acid" refers to a carboxylic acid that: 1) has a characteristic bad, pungent, or acidic odor, and 2) is infinitely soluble in or miscible with water at 20 ° C. . Examples of short chain carboxylic acids include formic acid, acetic acid, propionic acid, and butyric acid. As used herein, the phrase "short chain peroxycarboxylic acid" refers to the peroxycarboxylic acid form of a short chain carboxylic acid. As used herein, the term "solubilizer" refers to a component of the compositions herein that makes soluble or increases the solubility in a carrier (eg, water) of the medium chain carboxylic acid, medium chain peroxycarboxylic acid, or a mixture of them. For example, in one embodiment, the solubilizer can maintain a composition that includes a medium chain carboxylic acid, a medium chain peroxycarboxylic acid, or a mixture thereof in solution, or can maintain the fine combination and finally dispersed under the conditions of ordinary storage without forming a separate layer. The solubilizer, for example, can solubilize a medium chain carboxylic acid to a sufficient degree to allow it to react with an oxidizing agent such as hydrogen peroxide. A solubilizer can be identified through a test that measures phase separation under ordinary storage conditions, such as room temperature, 100 ° F or 60 ° C. As used herein, the term "solubilizer" does not include short chain carboxylic acids. As used herein, the term "microemulsion" refers to a thermodynamically stable dispersion of a liquid or other phase stabilized through a film between surfactant surfaces. The dispersion can be oil in water or water in oil. Microemulsions are typically clear solutions when the droplet diameter is about 100 nanometers or less. In one embodiment, the microemulsion composition herein is a high shear viscoelastic thinning gel, a liquid having a blue-blue appearance (Tydall). As used here, the phrases "blue tindal appearance" or "blue tindal" refers to a blue tone to diffuse the blue light or the blue region of the light spectrum. As used herein, the phrases "viscoelastic gel" and "viscoelastic liquid" refer to a liquid composition exhibiting both viscous and elastic characteristics or responses., which is indicative of a long range order or structure. As used herein, a composition or composition "consisting essentially" of certain ingredients, refers to a composition that includes those ingredients and that lacks any ingredient that materially affects the basic and novel characteristics of the composition or method. The phrase "consisting essentially of" excludes from the claimed compositions and methods short-chain carboxylic acids, short-chain peroxycarboxylic acids, or mixtures thereof; unless that ingredient is specifically listed after the phrase. As used here, a composition or combination "substantially free of" one or more ingredients refers to a composition that includes any of those ingredients or that includes only fingerprints or incidental amounts of that ingredient. Traces or incidental amounts may include the amount of the ingredient found in another ingredient as an impurity or that is generated in a minor side reaction during the formation or degradation of the medium chain peroxycarboxylic acid. As used herein, the phrase "an insufficient level to solubilize" refers to a concentration of an ingredient, wherein the ingredient is not sufficient to solubilize an insoluble material and to maintain the composition substantially in one phase. As used herein, the phrases "objectionable odor," "offensive odor," or "foul odor" refer to an environment of sharp, pungent or pungent or atmospheric odor from which a typical person withdraws if he can. The hedonistic tone provides a measure of the degree to which an odor is pleasant or unpleasant, An "objectionable odor," "offensive odor," or "foul odor" has a classification of "hedonistic tone in that it is unpleasant or more unpleasant than a 5% by weight solution of acetic acid, propionic acid, butyric acid, or mixtures thereof." As used herein, the term "microorganism" refers to any non-cellular or unicellular organism (including colonial) Microorganisms include all prokaryotes Microorganisms include bacteria (including cyanobacteria) lichens, fungi, protozoa, virions, viroids, viruses, phages, and certain algae As used herein, the term "Microbe" is synonymous with the microorganism.As used herein, the term "object" refers to any material that can be sensed by the senses, either directly and / or indirectly.The objects include a surface, including a hard surface (such as glass, ceramics, metal, natural or synthetic rock, wood and polymeric), an elastomeric or plastic, woven and non-woven substrates, a processing surface nt of food, a surface for health care and the like. Objects also include a food product (and its surfaces); a body or stream of water or a gas (for example, an air stream); and surfaces and articles used in hospital and industrial sectors. Objects also include the body or body parts of a living creature, for example, a hand.
As used herein, the phrase "food product" includes any food substrate which may require treatment with a microbial agent or composition and which is edible with or without additional preparation. Food products include meat (eg, red meat and pork), food "from the sea, poultry, fruits and vegetables, eggs, live eggs, egg products, ready-to-serve food, wheat, seeds, roots, tubers, leaves, stems, bulbs, flowers, sprouts or sprouts, condiments or a combination thereof The term "produce" refers to food products such as fruits and vegetables and plants or plant derived materials that are typically sold uncooked and, they are usually not packaged and sometimes can be eaten raw.As used herein, the phrase "plant product" includes any plant substance or substance derived from the plant that may require treatment with an antimicrobial agent or composition. Plant products include seeds, nuts, nut flesh, cut flowers, plants or grains developed or stored in a greenhouse, domestic plants, and the like. Plant coughs include many animal feeds. As used herein, a processed fruit or vegetable refers to a fruit or vegetable that has been cut, shredded, sliced, peeled, ground, shredded, irradiated, frozen, frozen (for example, bleached, pasteurized), or homogenized. As used here a fruit or vegetable that has been washed, colored, waxed, hydrocooled, chilled, peeled or has leaves, stems or shells removed, is not processed. As used herein, the phrase "meat product" refers to all forms of animal flesh, including the whole body, muscle, fat, organs, skin, bones and body fluids and similar components that make up the animal. Animal meat includes meat from mammals, birds, fish, reptiles, amphibians, snails, clams, crustaceans, other edible species such as lobster, crab, etc., or other forms of marine food. Forms of animal flesh include, for example, all or part of the meat of the animal, alone or in combination with other ingredients. Typical forms include, for example, processed meats such as cured meats, sectioned and formed products, shredded products, finely shredded products, ground beef and products including ground beef, whole products, and the like.
As used herein the term "poultry" refers to all forms of any bird kept, harvested or domesticated for meat or eggs, and include chickens, turkeys, ostriches, chickens, pigeons, guinea fowl, pheasants, quail, duck, goose, emu or similar, and the eggs of these birds. Poultry meat includes whole poultry meat, sectioned, processed, cooked or raw, and covers all forms of poultry meat, by-products, and side products. Poultry meat includes muscle, fat, organ, skin, bones and body fluids and similar components that make up the animal.
Forms of animal flesh include, for example, all or part of the meat of the animal alone or in combination with other ingredients.
Typical forms include, for example, processed poultry meat, such as cured poultry meat, sectioned and shaped products, shredded products, finely shredded products, and whole products. As used herein, the phrase "poultry remains" refers to any waste, residue, material, impurity, offal, poultry parts, poultry waste, carrageenan viscera, bird organs of corral, fragments or combinations of said materials, and the like, removed from a whole body of the poultry or portion during processing and entering a waste stream. As used herein, the phrase "food processing surface" refers to a tool surface, a machine, equipment, structure, construction, or the like that is used as part of a food processing, preparation or storage activity. Examples of food processing surfaces include food processing surfaces or preparation equipment (eg, slicer, canner, or transport equipment, including smoking equipment), food processing utensils (e.g., utensils, glassware, dishes , and vessels), and floors, walls, or accessories of structures where food processing occurs. Food processing surfaces are found and used in air circulation systems, counter-spillage of food, sanitation of aseptic packaging, refrigeration of food and cleaners and sanitary cooling substances, cleaning sanitation, cleaning and bleach cleaning, food packaging, cutting board additives, third collector sanitation, beverage cleaners and heaters, cooling water or meat boil, dish sanitizers, sanitation gels, cooling towers, antimicrobial food processing sprays, and non-aqueous to low-aqueous food preparation lubricants, oils and rinse additives. As used herein, the phrase "air streams" includes food counter-rotating air circulation systems. Air currents also include air currents typically found in hospital, surgical, ailment, maternity, mortuary, and clinical diagnostic rooms. As used herein, the term "waters" includes food transport processing waters. Food processing or transport waters include product transport waters (eg, as found in smoked products, pipeline transport, cutters, slicers, bleachers, retort systems, washing machines and the like), moving belt sprays for food transport lines, start and manual wash immersion trays, third collector rinse waters, and the like. The waters also include domestic and recreational waters such as swimming pools, rest centers, smoking recreational products and water ramps, fountains, and the like. As used here, the phrase "surface for health care" refers to a surface of an instrument, a device, a car, a cage, furniture, a structure, a building, or the like, which is used as part of an activity for health care. Examples of health care surfaces include surfaces of medical or dental instruments, of medical or dental devices, of electronic devices used to verify the patient's health, and of floors, walls or accessories of structures where care of the patient occurs. Health. The health care surfaces are found in hospitals, surgical rooms, suffering rooms, childbirth rooms, mortuary rooms, and rooms for clinical diagnosis. These surfaces can be those typified as "hard surfaces" (such as walls, floors, bed trays, etc.), or cloth surfaces for example, knitted, woven and non-woven surfaces (such as surgical garments, bandages, clothing of bedding, bandages, etc.), or equipment for patient care (such as respirators, diagnostic equipment, drippers, body delimiters, wheelchairs, beds, etc.), or surgical diagnostic equipment. Surfaces for health care include items and surfaces used in the health care of animals. As used herein, the term "instrument" refers to the various medical or dental instruments or devices that may have benefit from cleaning with a stabilized composition in accordance with the present invention. As used here, the phrases "medical instrument", "dental instrument", "medical device", "dental device", "medical equipment", or "dental equipment" refers to instruments, devices, tools, appliances, and equipment used in medicine or dentists. Such instruments, devices and equipment can be cold sterilized, soaked or washed and then sterilized with heat, or otherwise have benefit from cleaning in a composition of the present invention. These varic-s instruments These various instruments, devices and equipment include, but are not limited to: diagnostic instruments, trays, supports, batteries, forceps, scissors, large scissors, saws (for example, bone saws and their blades), hemostats, knives, chisels, tongs, files, clamps, drills, bits, scrapers, cutters, propagators, breakers, elevators, clamps, needle supports, carriers, fasteners, hooks, gurbies, curettes, retractors, straighteners, punches, extractors, scoops, keratomas, spatulas, expressors, trocars, dilators, cages, glassware, tubing, catheters, cannulae, obturators, stents, delimiters (e.g., endoscopes, stethoscopes, and artoscopes) and related equipment, and the like, or combinations thereof . As used herein, "agricultural" or "veterinary" objects or surfaces include animal feeds, animal water stations and enclosures, animal quarters, veterinary animal clinics (e.g., surgical or treatment areas), surgical areas for animals, and the like. As used herein, "residential" or "institutional" objects or surfaces include those found in structures inhabited by humans. Such objects or structures include bath surfaces, drains, drainage surfaces, kitchen surfaces, and the like. As used herein, the phrase "densified fluid" refers to a fluid in a critical, subcritical, almost critical, or supercritical state. The fluid is usually a gas at standard conditions with an atmosphere of a pressure and at 0 ° C. As used herein, the phrase "supercritical fluid" refers to a dense gas that is maintained above its critical temperature, the temperature above which it can not be liquefied by pressure. Supercritical fluids are typically less viscous and diffuse more quickly than liquids. In one embodiment, a densified fluid is at, above, or slightly below its critical point. As used herein, the phrase "critical point" is the point of transition at which the liquid and gaseous states of a substance emerge from each other and represent the combination of critical temperature and critical pressure for a substance. The critical pressure is just enough pressure to cause the appearance of two phases at the critical temperature. Temperatures, and critical pressures have been reported for numerous organic and inorganic compounds and various elements. As used here, the terms "almost critical" fluid or fluid "subcritical" refers to a fluid material that is typically below the critical temperature of a supercritical fluid, but remains in a fluid and denser state than a typical gas due to the effects of pressure on the fluid. In one embodiment, a subcritical or near critical fluid is at a temperature and / or pressure just below its critical point. For example, a subcritical or near critical fluid may be below its critical temperature but above its critical pressure, below its critical pressure but above its critical temperature, or below both its critical temperature and of its critical pressure. The terms almost critical and sub-critical do not refer to materials in their gaseous or ordinary liquid state. As used herein, percent by weight (% / p), percentage by weight,% by weight and the like are synonyms that refer to the substance as the weight of that substance divided by the weight of the composition and multiplied by 100. A unless otherwise indicated, the amount of an ingredient refers to the amount of the active ingredient. As used herein, the terms "mixed" or "mixture" when used in connection with a "peroxycarboxylic acid composition" or "peroxycarboxylic acids" refers to a composition or mixture that includes more than one peroxycarboxylic acid, such as a composition or mixture including peroxyacetic acid and peroxyoctanoic acid. As used herein, the term "about" which modifies the amount of an ingredient in the compositions of the The invention, or is used in the methods of the present invention, refers to the variation in the numerical quantity that may occur, for example, through the typical measurement in liquid handling procedures used to be concentrates or solutions for use in The real world; through inadvertent error in these procedures; through differences in the manufacture, source, or purity of the ingredients used to make the compositions or perform the methods; and similar. The term, roughly also encompasses amounts that differ due to different equilibrium conditions for a composition resulting in a particular initial mixture. Whether modified or not by the term "approximately", the claims include equivalents to the amounts. For the purpose of this patent application, successful microbial reduction is achieved when the microbial populations are reduced by at least about 50%, or significantly more than that is achieved through a water wash. The largest reductions in the microbial population provide higher levels of protection. As used herein, the term "sanitary substance" refers to an agent that reduces the number of bacterial contaminants to overcome levels as judged by public health requirements. In one embodiment, sanitary substances for use in this invention provide at least 99.999% reduction (reduction with an order of 5 records). These reductions can be evaluated using a procedure presented in Germicidal and Detergent Sanitizing Action of Disinfectants, Official Methods of Analysis of the Association of Official Analytical Chemists, paragraph 960.09 and applicable sections, 15a. Edition, 1990 (EPA Guideline 91-2). According to this reference, a sanitary substance can provide a reduction of 99.999% (reduction with an order of 5 records) in 30 seconds at room temperature, 25 ± 2 ° C, against several test organisms. As used herein, the term "disinfectant" refers to an agent that kills all vegetative cells including the most recognized pathogenic microorganisms, using the procedure described in A.O.A.C. Use Dilution Methods, Official Methods of Analysis of the Association of Official Analytical Chemists, paragraph 955.14 and applicable sections, 15a. Edition, 1990 (EPA Guideline 91-2). As used in this invention, the term "sporocide" refers to a substance that destroys spores) and refers to a physical or chemical agent or process that has the ability to cause more than 90% reduction (reduction of the order of 1 record) in the spore population of Bacillus cereus or Bacillus subtilis in .10 seconds at 60 ° C. In certain embodiments, the sporocidal compositions of the invention provide more than 99% reduction (2-log order reduction), more than 99.99% reduction (reduction of the order of 4-log), or more than one 99. 999% reduction (reduction of the order of 5-log) in such population in 10 seconds at 60 ° C. The differentiation of antimicrobial activity "cidal" or "Static", definitions that describe the degree of efficacy, and official laboratory protocols to measure this effectiveness are considerations to understand the importance of antimicrobial agents and compositions. Antimicrobial compositions can affect two types of microbial cell damage. The first is a lethal, irreversible action that results in the destruction or incapacitation of a complete microbial cell. The second type of cell damage is reversible, so that if the organism is free of the agent, it can multiply again. The first is called microbiocide and the last microbiostatic. A sanitary substance and a disinfectant are, by definition, agents that provide antimicrobial or microbicidal activity. In contrast, a conservative is generally described as an inhibitor or microbiostatic composition.
Medium Chain Peroxycarboxylic Acid Antimicrobial Compositions The present invention includes medium chain peroxycarboxylic acid compositions. The medium chain peroxycarboxylic acid compositions herein may include increased levels of medium chain peroxycarboxylic acid compared to conventional peroxycarboxylic acid compositions. The compositions of the invention may include medium chain peroxycarboxylic acid and a solubilizer. The solubilizer can increase or maintain the solubility of the medium chain peroxycarboxylic acid. The medium chain peroxycarboxylic acid compositions herein may include a microemulsion or a surfactant that can form a microemulsion. The medium chain peroxycarboxylic acid compositions herein need not include substantial amounts of short chain carboxylic acid, short chain peroxycarboxylic acid, or mixture thereof. It is believed that, in conventional mixed peroxycarboxylic acid compositions, the short chain carboxylic acid, the short chain peroxycarboxylic acid, or mixtures thereof, can solubilize the medium chain peroxycarboxylic acid. In one embodiment, the compositions herein include medium chain peroxycarboxylic acid. These compositions may also include medium chain carboxylic acid. Said compositions may advantageously include high levels of medium chain peroxycarboxylic acid. In one embodiment, the compositions herein include about 2 or more parts by weight of the medium chain peroxycarboxylic acid per 7 parts by weight of the medium chain carboxylic acid. In one embodiment, the compositions herein include about 2 or more parts by weight of medium chain peroxycarboxylic acid per 6 parts by weight of medium chain carboxylic acid. In one embodiment, the compositions herein include about 2 or more parts by weight of medium chain peroxycarboxylic acid per 5 parts by weight of medium chain carboxylic acid. In one embodiment, the compositions herein include about 2 or more parts by weight of medium chain peroxycarboxylic acid per each 4 parts by weight of medium chain carboxylic acid. In one embodiment, the compositions herein include about 2 parts by weight of medium chain peroxycarboxylic acid per 3 parts by weight of medium chain carboxylic acid. In one embodiment, the compositions herein include medium chain peroxycarboxylic acid and a solubilizer. The solubilizer can include a solvent, a surfactant, or a mixture thereof. The solvents include any of a variety of solvents that solubilize and do not significantly degrade the medium chain peroxycarboxylic acid. In certain embodiments, suitable solvents include polyalkylene oxide, blocked polyalkylene oxide at its terminus, mixtures thereof, or the like. Suitable solvents include a nonionic surfactant, as an alkoxylated surfactant. The alkoxylated surfactants include, for example, EO / PO copolymer, EO / PO copolymer blocked at its end, alcohol alkoxylate, alcohol alkoxylate blocked at its end, mixtures thereof, or the like.
When employed as a solvent, a surfactant, such as a nonionic surfactant, may be at higher concentrations than those conventionally employed. The solubilizer may include a surfactant (for example, a microemulsion-forming surfactant). Suitable surfactants include anionic surfactants, nonionic surfactants, cationic surfactants, amphoteric surfactants, zwitterionic surfactants, mixtures thereof, or the like. The solubilizer may include a surfactant microemulsion forming agent. Suitable microemulsion forming surfactants include an anionic surfactant, cationic surfactant, amphoteric surfactant, zwitterionic surfactant, mixtures thereof, or the like. Suitable microemulsion forming surfactants include anionic surfactants, such as a sulfate surfactant, sulfonate surfactant, phosphate surfactant (phosphate ester surfactant), and carboxylate surfactant, mixtures thereof, or the like . In one embodiment, the composition herein does not need to include substantial amounts of short chain peroxycarboxylic acid. For example, the compositions herein may be free of added short chain peroxycarboxylic acid. As used herein, free of an aggregate material refers to a composition that includes the material only as an incidental amount or trace found, for example, as an ingredient of or impurity in another named or incidentally generated ingredient of a minor side reaction. In one embodiment, the composition herein includes only relatively small amounts of short chain peroxycarboxylic acid. For example, the composition herein may include about 1 or more parts of medium chain peroxycarboxylic acid per 8 parts of short chain carboxylic acid, short chain peroxycarboxylic acid, or a mixture thereof. For example, the composition herein may include short chain peroxycarboxylic acid at an insufficient level to cause an offensive odor caused to a typical person. In certain embodiments, the composition herein does not include substantial amounts of peroxyacetic acid, is free of added peroxyacetic acid, includes about 1 or more parts of medium chain peroxycarboxylic acid per 8 parts of peroxyacetic acid, or includes peroxyacetic acid at an insufficient level to cause an offensive smell to a typical person. In one embodiment, the composition herein does not need to include substantial amounts of short chain carboxylic acid. For example, the compositions herein may be free of short chain carboxylic acid. In one embodiment, the composition herein includes only relatively small amounts of short chain carboxylic acid. By way of another example, the composition herein may include about 1 or more parts of medium chain peroxycarboxylic acid per 8 parts of short chain carboxylic acid. For example, the composition herein may include short chain carboxylic acid at an insufficient level to cause an offensive odor to a typical person. In certain embodiments, the composition herein does not include substantial amounts of acetic acid, is free of added acetic acid, includes about 1 or more parts of medium chain peroxycarboxylic acid per 8 parts of acetic acid, or includes acetic acid a an insufficient level to cause an offensive smell to a typical person. In certain embodiments, the compositions herein include, for example, less than 10% by weight, less than 5% by weight, less than 2% by weight, or less than 1% by weight of acetic acid. In certain embodiments, compositions of use herein include, for example, less than 40 ppm, less than 20 ppm, less than 10 ppm, or less than 5 ppm acetic acid. In one embodiment, the composition herein does not include substantial amounts of short chain peroxycarboxylic acid, short chain carboxylic acid, or a mixture thereof. For example, the compositions herein may be free of added short chain peroxycarboxylic acid, short chain carboxylic acid, or a mixture thereof. For example, the composition herein may include short chain carboxylic acid, short chain peroxycarboxylic acid, or a mixture thereof, at an insufficient level to cause an offensive odor to a typical person. In certain modalities, the composition herein does not include substantial amounts of acetic acid, peroxyacetic acid, or mixtures thereof; it is free of added acetic acid, peroxyacetic acid, or mixtures thereof; includes about 1 or more parts of medium chain peroxycarboxylic acid per 8 parts of acetic acid, peroxyacetic acid, or mixtures thereof; or includes acetic acid, peroxyacetic acid, or mixtures thereof at an insufficient level to cause an offensive odor to a typical person. In one embodiment, the composition herein includes about 1 or more parts of medium chain peroxycarboxylic acid per 8 parts of short chain carboxylic acid, short chain peroxycarboxylic acid, or mixtures thereof. In one embodiment, the composition herein includes about 1 or more parts of medium chain peroxycarboxylic acid per 7 parts of short chain carboxylic acid, short chain peroxycarboxylic acid, or a mixture thereof. In one embodiment, the composition herein includes about 1 or more parts of medium chain peroxycarboxylic acid per 6 parts of short chain carboxylic acid, short chain peroxycarboxylic acid, or mixtures thereof. In one embodiment, the composition herein includes about 1 or more parts of medium chain peroxycarboxylic acid per 5 parts of short chain carboxylic acid, short chain peroxycarboxylic acid, or mixtures thereof. In one embodiment, the composition herein includes about 1 or more parts of medium chain peroxycarboxylic acid per 4 parts of short chain carboxylic acid, short chain peroxycarboxylic acid, or mixtures thereof. In one embodiment, the composition herein includes about 1 or more parts of medium chain peroxycarboxylic acid per 3 parts of short chain carboxylic acid, short chain peroxycarboxylic acid, or mixtures thereof. In one embodiment, the composition herein includes about 1 or more parts of medium chain peroxycarboxylic acid per 2 parts of short chain carboxylic acid, short chain peroxycarboxylic acid, or mixtures thereof. In one embodiment, the composition herein includes about 1 or more parts of medium chain peroxycarboxylic acid for each part of short chain carboxylic acid, short chain peroxycarboxylic acid, or mixtures thereof. In one embodiment, the composition of the present has a less unpleasant odor than (eg, as measured by a hedonic tone classification) than 5, 4, 3, 2, or 1% by weight of acetic acid in water. In one embodiment, the composition of the present has a less unpleasant odor than (e.g., as measured by a hedonic tone classification) 5% by weight of acetic acid in water. In one embodiment, the composition of the present has a less unpleasant odor that has a less unpleasant odor than (for example, as measured by a hedonic tone classification) 4% by weight acetic acid in water. In one embodiment, the composition of the present has a less unpleasant odor than (e.g., as measured by a hedonic tone classification) 3% by weight of acetic acid in water. In one embodiment, the composition of the present has a less unpleasant odor than (for example, as measured by a hedonic tone classification) 2% by weight of acetic acid in water. In one embodiment, the composition of the present has an odor with a less unpleasant odor than (for example, as measured by a hedonic tone classification) 1% by weight of acetic acid in water. In certain embodiments, the composition herein includes one or more (eg, at least one) of an oxidizing agent, acidulant, stabilizing agent, mixtures thereof, or the like. The composition herein may include any of a variety of oxidizing agents, for example, hydrogen peroxide. The oxidizing agent can be effective to convert a medium chain carboxylic acid to a medium chain peroxycarboxylic acid. The oxidizing agent may also have antimicrobial activity, although it may not be present at a sufficient concentration to exhibit said activity. The composition herein can include any of a variety of acidulants, for example, an inorganic acid. The acidulant can be effective to bring the pH of the composition of the present concentrate to less than 1, or to bring the pH value of the present use composition to about 5 or lower, about 4 or lower , or about 3 or lower. The acidulant can increase the antimicrobial activity of the composition herein. The composition herein may include any of a variety of stabilizing agents, for example, a sequestering agent, for example, a phosphonate sequestering agent. The sequestering agent can be effective in stabilizing the peroxycarboxylic acid. In one embodiment, the composition herein exhibits an advantageous stability of the peroxycarboxylic acid. It is believed that in about one year at ambient conditions or room temperature (or 1 week at 60 ° C), the amount of peroxycarboxylic acid in the compositions can be about 80% or more, about 85% or more, about 90% or more, or approximately 95% or more of the initial values or use composition levels. Said aged compositions are included within the scope of the present invention. In one embodiment, the composition of the present exhibits an advantageous efficacy compared to other antimicrobial compositions at the same level of the active. In one embodiment, the composition herein has a reduced or no amount of volatile organic compounds, compared to conventional peroxycarboxylic acid compositions. In one embodiment, the composition herein has a higher flash point (or ignition point), compared to conventional peroxycarboxylic acid compositions. In one embodiment, the composition herein exhibits improved safety for the operator or user, compared to conventional peroxycarboxylic acid compositions. In one embodiment, the composition of the present exhibits improved storage or transport security, compared to conventional peroxycarboxylic acid compositions. In certain embodiments, the composition herein includes about 0.0005 to about 5% by weight of medium chain peroxycarboxylic acid, from about 0.3 to about 7% by weight of medium chain peroxycarboxylic acid, from about 0.5 to about 5% by weight. weight of medium chain peroxycarboxylic acid, from about 0.5 to about 4% by weight of medium chain peroxycarboxylic acid, from about 0.8 to about 3% by weight of medium chain peroxycarboxylic acid, from about 1 to about 3% by weight of medium chain peroxycarboxylic acid, or from about 1 to about 2% by weight of medium chain peroxycarboxylic acid. The composition may include any of these scales or amounts not modified by approximately. In certain embodiments, the composition herein includes from about 0.001 to about 8% by weight of medium chain carboxylic acid, from about 1 to about 10% by weight of medium chain carboxylic acid, from about 1 to about 8% by weight. medium chain carboxylic acid weight, from about 1.5 to about 6% by weight of medium chain carboxylic acid, from about 2 to about 8% by weight of medium chain carboxylic acid, from about 2 to about 6% by weight of medium chain carboxylic acid, from about 2 to about 4% by weight of the average chain carboxylic acid, from about 2.5 to about 5% by weight of the medium chain carboxylic acid, from about 3 to about 6% by weight of the carboxylic acid of medium chain, or from about 3 to about 5% by weight of medium chain carboxylic acid. The composition may include any of these scales or amounts not modified by approximately. In certain embodiments, the composition herein includes from about 0 to about 98% by weight of the vehicle, from about 0.001 to about 99.99% by weight of the vehicle, from about 0.2 to about 60% by weight of the vehicle, from about 1 to about about 98% by weight of the vehicle, from about 5 to about 99.99% by weight of the vehicle, from about 5 to about 97% by weight of the vehicle, from about 5 to about 90% by weight of the vehicle, from about 5 to about 70 % by weight of the vehicle, from about 5 to about 20% by weight of the vehicle, from about 10 to about 90% by weight of the vehicle, from about 10 to about 80% by weight of the vehicle, from about 10 to about 50% by weight of the vehicle, from about 10 to about 20% by weight of the vehicle, of about to about 70% by weight of the vehicle, from about 15 to about 80% by weight of the vehicle, from about 20 to about 70% by weight of the vehicle, from about 20 to about 50% by weight of the vehicle, from about 20 to about about 40% by weight of the vehicle, from about 20 to about 30% by weight of the vehicle, from about 30 to about 75% by weight of the vehicle, from about 30 to about 70% by weight of the vehicle, from about 40 to about 99.99 % by weight of the vehicle, from about 40 to about 90% by weight of the vehicle, or from about 60 to about 70% by weight of the vehicle. The composition may include any of these scales or amounts not modified by approximately. In certain embodiments, the composition herein includes from about 0.001 to about 80% by weight of solubilizer, from about 0.001 to about 60% by weight of solubilizer, from about 1 to about 80% by weight of solubilizer, from about 1 to about about 25% by weight of solubilizer, from about 1 to about 20% by weight of solubilizer, from about 2 to about 70% by weight of solubilizer, from about 2 to about 60% by weight of solubilizer, from about 2 to about 20 % by weight of solubilizer, from about 3 to about 65% by weight of solubilizer, of about 3 to about 15% by weight of solubilizer, from about 4 to about 10% by weight of solubilizer, from about 4 to about 20% by weight of solubilizer, from about 5 to about 70% by weight of solubilizer, from about 5 to about about 60% by weight of solubilizer, from about 5 to about 20% by weight of solubilizer, from about 10 to about 70% by weight of solubilizer, from about 10 to about 65% by weight of solubilizer, from about 10 to about 20 % by weight of solubilizer, from about 20 to about 60% by weight of solubilizer, or from about 40 to about 60% by weight of solubilizer. The composition may include any of these scales or amounts not modified by approximately. In certain embodiments, the composition herein includes from about 0.001 to about 30% by weight of oxidizing agent, from about 0.001 to about 10% by weight of oxidizing agent, from about 0.002 to about 10% by weight of oxidizing agent, about 2 to about 30% by weight of oxidizing agent, from about 2 to about 25% by weight of oxidizing agent, from about 2 to about 20% by weight of oxidizing agent, from about 4 to about % by weight of oxidizing agent, from about 5 to about 10% by weight of oxidizing agent, or from about 6 to about 10% by weight of oxidizing agent. The composition may include any of these scales or amounts not modified by approximately. In certain embodiments, the composition herein includes from about 0.001 to about 50% by weight of acidifier, from about 0.001 to about 30% by weight of acidifier, from about 1 to about 50% by weight of acidifier, from about 1 to about about 30% by weight of acidulant, from about 2 to about 40% by weight of acidulant, from about 2 to about 10% by weight of acidulant, from about 3 to about 40% by weight of acidulant, from about 5 to about 40 % by weight of acidifier, from about 5 to about 25% by weight of acidifier, from about 10 to about 40% by weight of acidulant, from about 10 to about 30% by weight of acidulant, from about 15 to about 35% by weight of acidulant, from about 15 to about 30% by weight of acidulant, or from about 40 to about 60% by weight of acidulant. The composition may include any of these scales or amounts not modified by approximately. In certain embodiments, the composition herein includes from about 0.001 to about 50% by weight of a stabilizing agent, from about 0.001 to about 5% by weight of a stabilizing agent, from about 0.5 to about 50% by weight of a stabilizing agent, from about 1 to about 50% by weight of a stabilizing agent, from about 1 to about 30% by weight of a stabilizing agent, from about 1 to about 10% by weight of a stabilizing agent, from about 1 to about 5% by weight of a stabilizing agent, from about 1 to about 3% by weight of a stabilizing agent, from about 2 to about 10% by weight of a stabilizing agent, from about 2 to about 5% by weight of a stabilizing agent , or from about 5 to about 15% by weight of a stabilizing agent. The composition may include any of these scales or amounts not modified by approximately.
Compositions of Carboxylic Acids and / or Acids Middle Chain Peroxycarboxylics Peroxycarboxylic (or percarboxylic) acids generally have the formula R (C03H) n, where, for example, R is an alkyl, arylalkyl, cycloalkyl, aromatic, or heterocyclic group, and n is one, two or th and is named by the prefix of the origin acid with peroxy. The R group can be saturated or unsaturated, as well as substituted and unsubstituted. The composition and methods of the invention can employ medium chain peroxycarboxylic acids containing, for example, from 6 to 12 carbon atoms. For example, medium chain peroxycarboxylic acids (or percarboxylic acids) may have the formula R (CO 3 H) n, wherein R is an alkyl group of 5 to 11 carbon atoms, a cycloalkyl group of 5 to 11 carbon atoms, arylalkyl group of 5 to 11 carbon atoms, an aryl group of 5 to 11 carbon atoms, or a heterocyclic group of 5 to 11 carbon atoms; and n is one, two or th Peroxycarboxylic acids can be made through the direct action of an oxidizing agent on a carboxylic acid, through self-oxidation of aldehydes, or acid chlorides, and hydrides or carboxylic anhydrides with hydrogen peroxide or sodium. In one embodiment, the medium chain percarboxylic acids can be made through the direct catalyzed acid equilibrium action of hydrogen peroxide in the medium chain carboxylic acid. Scheme 1 illustrates a balance between the carboxylic acid and the oxidizing agent (Ox) on one side, and peroxycarboxylic acid and the reduced oxidizing agent (Oxred) on the other: RCOOH + Ox D RCOOOH + Oxred (1) Scheme 2 illustrates an embodiment of scheme 1 in equilibrium, wherein the oxidizing agent is hydrogen peroxide on one side and the peroxycarboxylic acid and water on the other: RCOOH + H202 D RCOOOH + H20 (2) In conventional mixed peroxycarboxylic acid compositions, it is believed that the equilibrium constant for the reaction illustrated in scheme 2 is about 2.5, which may reflect the equilibrium for acetic acid. Although not limiting to the present invention, it is believed that the compositions herein have an equilibrium constant of about 4. Peroxycarboxylic acids useful in the compositions and methods of the present invention include peroxypentanoic, peroxyhexanoic, peroxyheptanoic, peroxyoctanoic, peroxynonanoic acid, peroxydecanoic, peroxyundecanoic, peroxydecanoic, peroxyascorbic, peroxyadipic, peroxycitric, peroxypimelic, or peroxysuberic, mixtures thereof, or the like. The alkyl base structures of these medium chain peroxycarboxylic acids may be straight chain, branched, or a mixture thereof. Peroxy forms of carboxylic acids with more than one carboxylate moiety may have one or more (for example, at least one) of the carboxyl moieties present as peroxycarboxyl moieties. Peroxyoctanoic acid (or peroctanoic acid) is a peroxycarboxylic acid having the formula, for example, of n-peroxyoctanoic acid: CH3 (CH2) 6COOOH. The peroxyoctanoic acid may be an acid with a straight chain alkyl moiety, an acid with a branched alkyl moiety, or a mixture thereof. Peroxioctanoic acid is an active on the surface and can help wet hydrophobic surfaces, such as those of microbes. The composition of the present invention may include a carboxylic acid. In general, carboxylic acids have the formula R-COOH wherein R can represent any number of different groups, including aliphatic groups, alicyclic groups, aromatic groups, heterocyclic groups, all of these may be saturated or unsaturated as well as substituted or unsubstituted. The carboxylic acids may have one, two, th or more carboxyl groups. The composition and methods of the invention typically employ medium chain carboxylic acids containing, for example, from 6 to 12 carbon atoms. For example, the medium chain carboxylic acids can have the formula R-COOH wherein R can be an alkyl group of 5 to 11 carbon atoms, a cycloalkyl group of 5 to 11 carbon atoms, an arylalkyl group of 5 to 11 carbon atoms, an aryl group of 5 to 11 carbon atoms, or a heterocyclic group of 5 to 11 carbon atoms. Suitable medium chain carboxylic acids include pentanoic, hexanoic, heptanoic, octanoic, nonanoic, decanoic, undecanoic, dodecanoic, ascorbic, citric, adipic, pimelic, and suberic acid. The alkyl base structures of these medium chain carboxylic acids may be straight chain, branched, or a mixture thereof. The carboxylic acids which are generally useful are those having one or two carboxyl groups, wherein the R group is a primary chain having a length of 4 to 11 carbon atoms. The primary alkyl chain is the carbon chain of the molecule that has the largest length of carbon atoms and directly adjoins carboxyl functional groups. The compositions and methods herein include a medium chain peroxycarboxylic acid. The medium chain peroxycarboxylic acid may include or may be a peroxycarboxylic acid of 6 to 12 carbon atoms. The peroxycarboxylic acid of 6 to 12 carbon atoms may include either a peroxyhexanoic acid, peroxyheptanoic acid, peroxyoctanoic acid, peroxynonoanic acid, peroxydecanoic acid, peroxyundecanoic acid, peroxydodecanoic acid, or mixtures thereof. The medium chain peroxycarboxylic acid may include or be a peroxycarboxylic acid of 7 to 12 carbon atoms. The peroxycarboxylic acid of 7 to 12 carbon atoms may include or be peroxyheptanoic acid, peroxioctanoic acid, peroxynonoanic acid, peroxydecanoic acid, peroxyundecanoic acid, peroxydodecanoic acid, or mixtures thereof. The medium chain peroxycarboxylic acid may include or be a peroxycarboxylic acid of 6 to 10 carbon atoms. The peroxycarboxylic acid of 6 to 10 carbon atoms may include either a peroxyhexanoic acid, peroxyheptanoic acid, peroxyoctanoic acid, peroxynanoanic acid, peroxydecanoic acid, or mixtures thereof. The medium chain peroxycarboxylic acid may include or be a peroxycarboxylic acid of 8 to 10 carbon atoms. The peroxycarboxylic acid of 8 to 10 carbon atoms may include or be a peroxyoctanoic acid, peroxynonanoic acid, peroxydocanoic acid, or mixtures thereof. In certain embodiments, the medium chain peroxyoctanoic acid includes or is peroxioctanoic acid, peroxydecanoic acid, or mixtures thereof. In one embodiment, the medium chain peroxycarboxylic acid includes or is peroxioctanoic acid. In certain embodiments, the composition herein includes from about 0.0005 to about 5% by weight of medium chain peroxycarboxylic acid, from about 0.3 to about 7% by weight of medium chain peroxycarboxylic acid, from about 0.5 to about 5% by weight. medium chain peroxycarboxylic acid weight, from about 0.5 to about 4% by weight of the average chain peroxycarboxylic acid, from about 0.8 to about 3% by weight of medium chain peroxycarboxylic acid, from about 1 to about 3% by weight of medium chain peroxycarboxylic acid, or from about 1 to about 2% by weight of medium chain peroxycarboxylic acid. The composition may include any of these scales or amounts not modified by approximately. In one embodiment, the compositions and methods herein include a medium chain carboxylic acid. The medium chain carboxylic acid may include or be a carboxylic acid of 6 to 12 carbon atoms. The carboxylic acid of 6 to 12 carbon atoms may include or be hexanoic acid, heptanoic acid, octanoic acid, nonanoic acid, decanoic acid, undecanoic acid, dodecanoic acid, or mixtures thereof. The medium chain carboxylic acid may include or be a carboxylic acid of 7 to 12 carbon atoms. The carboxylic acid of 7 to 12 carbon atoms may include or be heptanoic acid, octanoic acid, nonanoic acid, decanoic acid, undecanoic acid, dodecanoic acid, or mixtures thereof. The medium chain peroxycarboxylic acid may include or be a carboxylic acid of 6 to 10 carbon atoms. The carboxylic acid of 6 to 10 carbon atoms can include or be a hexanoic acid, heptanoic acid, octanoic acid, nonanoic acid, decanoic acid, or mixtures thereof. The medium chain carboxylic acid may include or be a carboxylic acid of 8 to 10 carbon atoms. The carboxylic acid of 8 to 10 carbon atoms can include or be octanoic acid, nonanoic acid, decanoic acid, or mixtures thereof. In certain embodiments, the medium chain carboxylic acid includes or is octanoic acid, decanoic acid, or mixtures thereof. In one embodiment, the medium chain carboxylic acid includes or is octanoic acid. In certain embodiments, the composition herein includes from about 0.001 to about 8% by weight of medium chain carboxylic acid, from about 1 to about 10% by weight of medium chain carboxylic acid, from about 1 to about 8% by weight. medium chain carboxylic acid weight, from about 1.5 to about 6% by weight of medium chain carboxylic acid, from about 2 to about 8% by weight of medium chain carboxylic acid, from about 2 to about 6% by weight of medium chain carboxylic acid, from about 2 to about 4% by weight of medium chain carboxylic acid, from about 2.5 to about 5% by weight of medium chain carboxylic acid, from about 3 to about 6% by weight of carboxylic acid of medium chain, or from about 3 to about 5% by weight of medium chain carboxylic acid. The composition may include any of these scales or amounts not modified by approximately. In one embodiment, the compositions and methods include a medium chain peroxycarboxylic acid and the corresponding medium chain carboxylic acid. In one embodiment, the composition herein includes an amount of medium chain peroxycarboxylic acid effective to kill one or more (eg, at least one) of the pathogenic bacteria carried in the food, associated with a food product, such as Salmonella typhimurium, Salmonella javiana, Campylobacter jejuni, Listeria monocytogenes and Escherichia coli 0157: H7, yeast, mold, and the like. In one embodiment, the composition herein includes an effective amount of medium chain peroxycarboxylic acid to kill one or more (eg, at least one) of the pathogenic bacteria associated with a surface and environment for health care, such as Salmonella typhimurium, Staphylococcus aureus, Salmonella choleraesurus, Pseudomonas aeruginosa, Escherichia coli, microbacteria, yeast, mold, and the like. The compositions and methods of the present invention have activity against a wide variety of microorganisms such as Gram positive bacteria (e.g., Listeria monocytogenes or Staphylococcus aureus) and Gram negative (e.g., Escherichia coli or Pseudomonas aeruginosa), yeast, mold, spores bacterial, viruses, etc. The compositions and methods of the present invention, as described above, have activity against a wide variety of human pathogens. The compositions and methods herein can kill a wide variety of microorganisms on a food processing surface, on the surface of a food product, in water used to wash or process the food product, on a surface for health care , or in an environment for health care. Modes of the present invention include medium chain carboxylic acid and medium chain peroxycarboxylic acid, and certain embodiments specifically exclude short chain peroxycarboxylic acid, short chain carboxylic acid, or a mixture thereof. However, embodiments of the compositions herein may include short chain peroxycarboxylic acid, short chain carboxylic acid, or mixtures thereof. The addition of short chain peroxycarboxylic acid, short chain carboxylic acid, or a mixture thereof to a composition is not intended to necessarily have a composition that is outside the spirit and scope of the present invention.
Solubilizers The compositions herein can include a solubilizer. The present invention relates to solubilizers for medium chain carboxylic acids and medium chain peroxycarboxylic acids. In one embodiment, the solubilizer can increase or maintain the solubility in the composition of the medium chain peroxycarboxylic acid or the medium chain carboxylic acid. The compositions and methods herein may include any of a variety of suitable solubilizers. For example, the solubilizer can include a solvent, a surfactant, or a mixture thereof. In one embodiment, the surfactant can be used as a solvent. In one embodiment, the surfactant can form a microemulsion. In one embodiment, the composition including the solubilizer herein, takes the form of a gel or viscoelastic liquid. In one embodiment, the solubilizer is effective to dissolve the octanoic acid at a concentration of 5% by weight in water. In one embodiment, the solubilizer is effective to dissolve the octanoic acid at a concentration of 4% by weight in water. In one embodiment, the solubilizer is effective to dissolve the octanoic acid at a concentration of 3% by weight in water. In one embodiment, the solubilizer is effective to dissolve the octanoic acid at a concentration of 2% by weight in water. In certain embodiments, the composition herein includes from about 0.001 to about 80% by weight of solubilizer, from about 0.001 to about 60% by weight of solubilizer, from about 1 to about 80% by weight of solubilizer, from about 1 to about 25% by weight of solubilizer, from about 1 to about 20% by weight of solubilizer, from about 2 to about 70% by weight of solubilizer, from about 2 to about 60% by weight of solubilizer, from about 2 to about 20% by weight of solubilizer, from about 3 to about 65% by weight of solubilizer, from about 3 to about 15% by weight of solubilizer, from about 4 to about 10% by weight of solubilizer, about 4 to about 20% by weight of solubilizer, from about 5 to about 70% by weight of solubilizer, from about 5 to about 60% by weight of solubilizer, of about to about 20% by weight of solubilizer, from about 10 to about 70% by weight of solubilizer, from about 10 to about 65% by weight of solubilizer, from about 10 to about % by weight of solubilizer, from about 20 to about 60% by weight of solubilizer, or from about 40 to about 60% by weight of solubilizer. The composition can include any of these scales or amounts not modified by approximation.
Solubilizers of Solvents and Compositions Including Them In one embodiment, the compositions and methods herein may include as solubilizer one or more (for example, at least one) solvents. Suitable solvents include any of a variety of solvents that solubilize, but do not significantly degrade, the medium chain peroxycarboxylic acid. Suitable solvents include polyalkylene oxide, blocked polyalkylene oxide at its terminus, glycol ether, nonionic surfactant, mixtures thereof, or the like. In one embodiment, the composition herein includes a medium chain peroxycarboxylic acid; medium chain carboxylic acid; A vehicle; and polyalkylene oxide, polyalkylene oxide blocked at its end, nonionic surfactant, or a mixture thereof. For example, the composition herein may include from about 0.5 to about % by weight of medium chain peroxycarboxylic acid; from about 1 to about 10% by weight of medium chain carboxylic acid; from about 1 to about 98% by weight of the vehicle; and from about 1 to about 80% by weight polyalkylene oxide, polyalkylene oxide blocked at its end, nonionic surfactant, or mixtures thereof. For example, the composition herein may include from about 0.5 to about 5% by weight of medium chain peroxycarboxylic acid; from about 1 to about 10% by weight of medium chain carboxylic acid; from about 5 to about 35% by weight of the vehicle; and from about 20 to about 65% by weight polyalkylene oxide, polyalkylene oxide blocked at its end, nonionic surfactant, or mixtures thereof. For example, the composition herein may include from about 0.5 to about 5% by weight of medium chain peroxycarboxylic acid; from about 1 to about 10% by weight of medium chain carboxylic acid; from about 10 to about 35% by weight of the vehicle; and from about 40 to about 60% by weight of polyalkylene oxide, polyalkylene oxide blocked at its end, nonionic surfactant, or mixtures thereof. In one embodiment, the composition herein includes a solvent solubilizer and less than or equal to 35% by weight of a vehicle (e.g., water). The composition may include any of these scales or amounts not modified by approximately. In one embodiment, the composition herein includes C8 peroxycarboxylic acid; C8 carboxylic acid; Water; and polyalkylene oxide, polyalkylene oxide blocked at its end, nonionic surfactant, or mixtures thereof. For example, the composition herein can include from about 0.5 to about 5% by weight of C8 peroxycarboxylic acid; from about 1 to about 10% by weight of C8 carboxylic acid; from about 1 to about 98% by weight of water; and from about 1 to about 80% by weight polyalkylene oxide, polyalkylene oxide blocked at its end, nonionic surfactant, or mixtures thereof. For example, the composition herein may include from about 0.5 to about 5% by weight peroxycarboxylic acid of 8 carbon atoms; from about 1 to about 10% by weight of carboxylic acid of 8 carbon atoms; from about 5 to about 35% by weight of water; and from about 20 to about 65% by weight of polyalkylene oxide, polyalkylene oxide blocked at its end, nonionic surfactant, or a mre thereof. For example, the composition herein may include from about 0.5 to about 5% by weight peroxycarboxylic acid of 8 carbon atoms; from about 1 to about 10% by weight of carboxylic acid of 8 carbon atoms; from about 10 to about 35% by weight of water; and from about 40 to about 60% by weight of polyalkylene oxide, polyalkylene oxide blocked at its end, nonionic surfactant, or a mre thereof.
The composition can include any of these scales or amounts not modified by approximation. In certain embodiments, the composition herein includes from about 0.001 to about 80% by weight of the solvent as a solubilizer, from about 0.001 to about 60% by weight of the solvent as a solubilizer, from about 1 to about 80% by weight of the solvent as solubilizer, from about 5 to about 70% by weight of the solvent as a solubilizer, from about 10 to about 65% by weight of the solvent as a solubilizer, or from about 20 to about 60% by weight of the solvent as a solubilizer. The composition can include any of these scales or amounts not modified by approximation. In one embodiment, when the compositions and methods herein include a solvent as a solubilizer, they need not include a significant amount, or even none at all, of a short chain peroxycarboxylic acid, a short chain carboxylic acid, or a mixture thereof. same. Examples of short chain carboxylic acids include formic acid, acetic acid, propionic acid, and butanoic acid. Short chain carboxylic acids and peroxycarboxylic acids include those with 4 or fewer carbon atoms. In one embodiment, the compositions and methods herein including a solvent as a solubilizer need not include substantial amounts of short chain peroxycarboxylic acid. In one embodiment, the compositions and methods herein that include a solvent as a solubilizer may be free of added short chain peroxycarboxylic acid. In one embodiment, the compositions and methods herein including a solvent as a solubilizer may include medium chain peroxycarboxylic acid in a higher ratio compared to the short chain peroxycarboxylic acid than that found in conventional compositions. For example, the compositions and methods herein may include a solvent as a solubilizer and about 1 or more parts of medium-chain peroxycarboxylic acid per 8 parts of short chain carboxylic acid, short chain peroxycarboxylic acid, or a mixture thereof. same. For example, the compositions and methods herein may include a solvent such as solubilizer and short chain carboxylic acid, short chain peroxycarboxylic acid, or a mixture thereof, at a level insufficient to cause an offensive odor to a typical person.
Polyalkylene Oxide Solubilizers Suitable poly-alkylene oxides include polyethylene glycol, polypropylene glycol, polybutylene glycol, and mixtures thereof, or the like. Suitable end-blocked polyalkylene oxides include monoalkyl and dialkyl ethers of the respective polyalkylene oxides, such as polyalkylene glycol mono- and di-methyl ethers, polyalkylene glycol mono- and di-ethyl ethers, mono- and di-methyl ethers. - polyalkylene glycol propyl, polyalkylene glycol mono- and di-butyl ethers, and mixtures thereof, or the like. Suitable blocked ends of polyalkylene oxides include methyl polyethylene glycol (for example, polyethylene glycol monomethyl ether), dimethyl polyethylene glycol (for example, polyethylene glycol dimethyl ether), mixtures thereof, or the like.
Glycol Ether Solubilizers Suitable solvent solubilizers include glycol ethers. Suitable glycol ethers include n-butyl ether. of diethylene glycol, diethylene glycol n-propyl ether, diethylene glycol ethyl ether, diethylene glycol methyl ether, diethylene glycol t-butyl ether, propylene glycol di-butyl ether, dipropylene glycol diethyl ether, glycol ethyl ether dipropylenic, dipropylenic glycol propyl ether, dipropylenic glycol tert-butyl ether, ethylene glycol butyl ether, ethylene glycol propyl ether, ethylene glycol ethyl ether, ethylene glycol methyl ether, ethylene glycol methyl ether acetate, propylene glycol n-butyl ether, propylene glycol ethyl ether, methyl propylene glycol propylene glycol, propylene glycol n-propyl ether, tripropylenic glycol methyl ether and tripropylenic glycol n-butyl ether, ethylene glycol phenyl ether (commercially available as DOWANOL EPH ™ from Dow Chemical Co.), propylene glycol phenyl ether (commercially available from DOWANOL PPH ™ from Dow Chemical Co.), and the like, or mixtures thereof. Additional suitable commercially available glycol ethers (all of which are available from Union Carbide Corp.) include Butoxyethyl PROPASOL ™, Butyl Acetate CARBITOL ™, Butyl CARBITOL ™, CELLOSOLVE ™ Butyl Acetate, Butyl CELLOSOLVE ™, Butyl DIPROPASOL ™, Butyl PROPASOL ™, CARBITOL ™ PM-600, CARBITOL ™ Low Gravity, CELLOSOLVE ™, CELLOSOLVE ™, Esther EEP ™, FILMER IBT ™, Hexyl CARBITOL ™, Hexil CELLOSOLVE ™, Methyl CARBITOL ™, Methyl CEKKISIKVE ™, Methyl CELLOSOLVE ™, Methyl DIPROPASOL ™, Methyl PROPASOL ™, Methyl PROPASOL, Propyl CARBITOL ™, Propil CELLOSOLVE, Propil DIPROPASOL and Propil PROPASOL.
Nonionic Surfactants Nonionic surfactants suitable for use as solvents include alkoxylated surfactants. Suitable alkoxylated surfactants include copolymers of EO / PO, EO / PO copolymers blocked at their terminus, alcohol alkoxylates, alcohol alkoxylates blocked at their ends, mixtures thereof, or the like. Suitable alkoxylated surfactants for use as solvents include EO / PO block copolymer, such as surfactants Pluronic and Pluronic inverses; alcohol alkoxylates, such as Dehypon LS-54 (R- (EO) 5 (PO) 4) and Dehypon LS-36 3 (R- (EO) 3 (PO) 6); and alcohol alkoxylates blocked at their end, such as Plurafac LF221 and Tegoten EC11; mixtures thereof, or the like. When used as a solvent, a surfactant, such as a nonionic surfactant, may be at higher concentrations than those conventionally employed as a surface active agent.
Non-ionic Semi-Polar Surfactants The semi-polar type of active agents on the non-ionic surface is another class of nonionic surfactant useful in the compositions of the present invention. Semi-polar nonionic surfactants include amine oxides, phosphine oxides, sulfoxides and their alkoxylated derivatives. The amine oxides are tertiary amine oxides corresponding to the general formula: wherein the arrow is a conventional representation of a semi-polar link; and R1, R2, and R3 may be aliphatic, aromatic, heterocyclic, alicyclic, or combinations thereof. In general, for the amine oxides of detergent interest, R1 is an alkyl radical of about 8 to about 24 carbon atoms; R2 and R3 are alkyl or hydroxyalkyl of 1-3 carbon atoms or a mixture thereof; R2 and R3 may be linked together, for example, through an oxygen or nitrogen atom, to form a ring structure; R 4 is an alkylene or hydroxyalkylene group containing 2 to 3 carbon atoms; and n ranges from 0 to about 20. Useful water-soluble amine oxide surfactants are selected from octyl, decyl, dodecyl, isododecyl, coconut, or tallow alkyl d i- (to the lower) amine, examples specific of which are octal oxide dimethylamine, nonyl dimethylamine oxide, decyldimethylamine oxide, undecyldimethylamine oxide, dodecyldimethylamine oxide, iso-dodecyldimethylamine oxide, tridecyldimethylamine oxide, tetradecyldimethylamine oxide, pentadecyldimethylamine oxide, hexadecyldimethylamine oxide, heptadecyldimethylamine oxide , octadecyldimethylamine oxide, dodecyldipropylamine oxide, tetradecyldipropylamine oxide, hexadecyldipropylamine oxide, tetradecyldibutylamine oxide, octadecyldibutylamine oxide, bis (2-hydroxyethyl) dodecylamine oxide, bis (2-hydroxyethyl) -3-dodecoxy-1-hydroxypropylamine oxide, dimethyl- (2-hydroxydecyl) amine oxide, 3,6,9-trioctadecyldimethylamine oxide and oxide 3-dodecoxy-2-hydroxypropyl- (2-hydroxyethyl) amine.
Surface-active Agent Solubilizers and Compositions Including Them In one embodiment, the compositions and methods herein may include one or more solubilizers (e.g., at least one) surfactants, for example, to microemulsion-forming surfactant. Suitable surfactants include anionic surfactant, cationic surfactant, amphoteric surfactant, zwitterionic surfactant, mixtures thereof, or the like. Suitable microemulsion forming surfactants include anionic surfactant, cationic surfactant, amphoteric surfactant, zwitterionic surfactant, mixtures thereof, or the like. Suitable microemulsion forming surfactants include an anionic surfactant. A microemulsion forming surfactant can form a microemulsion in a composition that includes a medium chain peroxycarboxylic acid, a medium chain carboxylic acid, or a mixture thereof. In one embodiment, the composition herein includes microemulsion. In one embodiment, the composition herein can be determined as a microemulsion by testing the composition to make a viscoelastic shear thinning fluid or gel having a blue-blue appearance. Although not limited to the present invention, the tendal blue appearance is believed to indicate a heterogeneous system of a small, suspended dispersion (e.g., a microemulsion), which is effective to diffuse blue light. In one embodiment, the composition of the present can be determined as a microemulsion by testing the ability to form a physically stable composition at different concentrations of surfactant solubilizer. A microemulsion can produce a curve with a maximum of physical stability at a concentration with unstable compositions at higher and lower concentrations. Typically, solvent mixtures of surfactants (eg, acetic acid and surfactant) do not form microemulsions. In one embodiment, the composition that includes a surfactant solubilizer solubilizer is in the form of a gel or viscoelastic liquid. By increasing the concentration of the medium chain carboxylic acid, medium chain peroxycarboxylic acid, or mixtures thereof, the degree to which the composition is a gel or viscoelastic liquid can be increased. By increasing the concentration of the surfactant solubilizer the degree to which the composition is a gel or viscoelastic liquid can be increased. In one embodiment, the gel can be viscoelastic enough to maintain its molded shapes. An alkylbenzene sulfonate surfactant (e.g., LAS) may be employed to form a gel or viscoelastic liquid that can maintain its molded shape. In one embodiment, the alkylbenzene sulfonate surfactant containing a viscoelastic gel can maintain its shape even at 60 ° C. Although not limited to the present invention, the compositions herein can include medium chain peroxycarboxylic acid sequestered in the surfactant of the microemulsion.
This can stabilize peroxycarboxylic acid by keeping it away from impurities or reducing agents in bulk water. This can increase the production of peroxycarboxylic acid by removing it from the solution. Although not limited to the present invention, it is believed that an explanation for the viscoelastic properties of the gels of the compositions herein is that they revert to repulsive forces between the dispersions / droplets that are stabilized by the microemulsion-forming surfactant. Tensoactive agents that are charged can increase electrostatic repulsion. Suitable charged surfactants include anionic surfactants. In one embodiment, the composition herein includes anionic surfactant and other surface active agent (s). For example, the compositions herein may include an anionic surfactant and a nonionic surfactant or semi-polar nonionic surfactant. In one embodiment, the composition herein includes medium chain peroxycarboxylic acid; medium chain carboxylic acid; A vehicle; and one or more (for example, at least one) surfactants, for example, surfactant microemulsion forming agents. For example, the composition herein can include from about 0.5 to about 5% by weight of medium chain peroxycarboxylic acid; from about 1 to about 10% by weight of medium chain carboxylic acid; from about 5 to about 97% by weight of vehicle; and from about 1 to about 20% by weight of surfactant, for example, microemulsion-forming surfactant. For example, the composition herein may include from about 0.5 to about 5% by weight of medium chain peroxycarboxylic acid; from about 1 to about 10% by weight of medium chain carboxylic acid; from about 15 to about 80% by weight of vehicle; and from about 1 to about 20% by weight of surfactant, for example, a microemulsion-forming surfactant. For example, the composition herein may include from about 0.5 to about 5% by weight of medium chain peroxycarboxylic acid; from about 1 to about 10% by weight of medium chain carboxylic acid; from about 30 to about 70% by weight of vehicle; and from about 2 to about 20% by weight of surfactant, for example, a microemulsion-forming surfactant. In one embodiment, the composition herein includes a surfactant or a microemulsion-forming solubilizer and more than or equal to 35% by weight of the vehicle (e.g., water). The composition may include any of these scales or amounts not modified by approximately. In one embodiment, the composition herein includes C8 peroxycarboxylic acid; C8 carboxylic acid; Water; and one or more (for example, at least one) surfactants, for example, surfactant microemulsion forming agents. For example, the composition herein can include from about 0.5 to about 5% by weight of C8 peroxycarboxylic acid; from about 1 to about 10% by weight of C8 carboxylic acid; from about 5 to about 97% by weight of water; and from about 1 to about 20% by weight of surfactant, for example, a microemulsion-forming surfactant. For example, the composition herein can include from about 0.5 to about 5% by weight of C8 peroxycarboxylic acid; from about 1 to about 10% by weight of C8 carboxylic acid; from about 15 to about 80% by weight of water; and from about 1 to about 20% by weight of surfactant, for example, a microemulsion-forming surfactant. For example, the composition herein can include from about 0.5 to about 5% by weight of C8 peroxycarboxylic acid; from about 1 to about 10% by weight of C8 carboxylic acid; from about 30 to about 70% by weight of water; and from about 2 to about 20% by weight of surfactant, for example, a microemulsion-forming surfactant. The composition may include any of these scales or amounts not modified by approximately. In certain embodiments, the composition herein includes from about 0.001 to about 60% by weight surfactant, for example, a microemulsion-forming surfactant, as a solubilizer, from about 1 to about 25% by weight surfactant, example, a microemulsion-forming surfactant, as a solubilizer, of from about 1 to about 20% by weight surfactant, for example, a microemulsion-forming surfactant, as a solubilizer, from about 2 to about 20% by weight surfactant , for example, a microemulsion-forming surfactant, as a solubilizer, of from about 3 to about 15% by weight surfactant, for example, a microemulsion-forming surfactant, as a solubilizer, of about 4 to about 20% by weight of surfactant, for example, a microemulsion-forming surfactant, as a solubilizer, of about 4 to about 10% by weight of surfactant, for example, a microemulsion-forming surfactant, as a solubilizer, approximately to about 20% by weight of surfactant, for example, a microemulsion-forming surfactant, as a solubilizer, or from about 10 to about 20% by weight of surfactant, for example, a microemulsion-forming surfactant, as a solubilizer . The composition may include any of these scales or amounts not modified by approximately.
Anionic Surfactants The composition herein may include an anionic surfactant as a solubilizer. Suitable anionic surfactants include an organic sulfonate surfactant, organic sulfate surfactant, phosphate ester surfactant, carboxylate surfactant, mixtures thereof, or the like. In one embodiment, the anionic surfactant includes alkyl sulfonate, alkylaryl sulfonate, alkylated diphenyl oxide disulfonate, alkylated naphthalene sulphonate, alkoxylate carboxylate alcohol, sarcosinate, taurate, acyl amino acid, alkanoic ester, phosphate ester of sulfuric acid in the form of a salt or acid. of it, or a mixture thereof. The particular salts will be conveniently selected depending on the particular formulation and the needs. Suitable anionic surfactants include sulfonic acids (and salts), such as isethionates (eg, acyl isethionates), alkylarylsulphonic acids and their salts, alkyl sulfonates, secondary alkenyl sulphonates, and the like. Examples of suitable synthetic water soluble anionic detergent compounds include the ammonium and substituted ammonium salts (such as mono-, di- and triethanolamine) and alkali metal salts (such as sodium, lithium and potassium) of the mononuclear aromatic alkyl sulfonates such as the alkyl benzene sulphonates having from about 5 to about 18 carbon atoms in the alkyl group in a straight or branched chain, for example, the alkyl benzene sulphonate or alkyl toluene, xylene, cumene and phenol sulphonate salts; alkyl naphthalene sulfonate, diamylon naphthalene sulfonate, and dinonyl naphthalene sulfonate and alkoxylated derivatives or their free acids. Suitable sulfonates include olefin sulfonates, such as long-chain alean sulfonates, long-chain hydroxyalkane sulfonates or mixtures of alean sulfonates and hydroxyalkane sulphonates. Suitable sulfonates include secondary alean sulfonates. In certain embodiments, the compositions herein, which include an anionic surfactant, such as a normal C8 sulfonate, may be foamless or low foaming compositions. Said compositions can be advantageous for applications such as cleaning in place, fret washing machine, spotting, cleaning, washing machine, stain removal and cleaning, etc. For applications where foaming is desired, a foaming agent may be added as part of the composition herein or separately. In a two step offering, a foaming agent can be combined with a dilution of the composition without foam or low foaming to form a foaming use solution. In a one-step offering, the foaming agent can be incorporated into the concentrated composition. A suitable foaming agent is LAS acid. The LAS acid can form a microemulsion in the compositions herein. The LAS acid can form a gel or viscoelastic liquid in the compositions herein. Additional suitable foaming agents include secondary alean sulfonate, alkylated diphenyl oxide sulfonate (for example, C12 alkyl diphenyl oxide disulfonate), alkyl ether sulfate (for example, with n = 1-3) (eg, sodium laureth sulfate ( with n = 1, 2, or 3)), sodium lauryl sulfate, or the like. In one embodiment, said foaming agents provide a foaming composition with one or more desirable foaming characteristics. Desirable foaming characteristics include, for example, the foam which is visible for about 5 minutes after forming the foam; foam with continuous and good drainage (for example, when applied to a vertical surface); foam that dries to a transparent appearance, for example, that leaves no visible residue on a stainless steel surface; and / or the foam that can be applied with a moderate or low odor compared to a conventional foam containing peroxyacetic acid. Suitable anionic sulfate surfactants for use in the compositions herein include alkyl ether sulphates, alkyl sulphates, linear and branched alkyl primary and secondary sulphates, alkyl ethoxy sulphates, oleyl glycerol sulphates, alkyl phenol ethylene oxide ether sulphates, C5-C17 acyl-N- (C1-C4 alkyl) and -N- (C1-C2 hydroxyalkyl) glucamine sulfates, and alkyl polysaccharide sulfates such as the sulphates of alkyl polyglucoside, and the like. Also included are the alkyl sulphates, alkyl poly (ethyleneoxy) ether sulphates and aromatic poly (ethyleneoxy) sulfates, such as the sulfates or condensation products of ethylene oxide and nonyl phenol (usually having from 1 to 6 oxyethylene groups per molecule). Suitable anionic carboxylate surfactants for use in the compositions herein include carboxylic acids (and salts), such as alkanoic acids (and alkanoates), ester carboxylic acids (e.g., alkyl succinates), ether carboxylic acids, and Similar. Such carboxylates include alkyl ethoxy carboxylates, alkylarylethoxy carboxylates, alkyl polyethoxy polycarboxylate, as surfactants, and soaps (eg, alkyl carboxyls). Secondary carboxylates useful in the compositions herein include those containing a carboxyl unit connected to a secondary carbon. The secondary carbon may be in a ring structure, for example, as in p-octyl benzoic acid, or as in alkyl-substituted cyclohexyl carboxylates. The secondary carboxylate surfactants typically do not contain ether linkages, ester linkages, or hydroxyl groups. In addition, they typically lack nitrogen atoms in the header group (amphiphilic portion). Secondary soap surfactants typically contain 11-13 carbon atoms in total, although more carbon atoms (eg, up to 16) may be present. Suitable carboxylates also include acylamino acids (and salts), such as acylglutamates, acyl peptides, sarcosinates (for example, N-acyl sarcosinates), taurates (for example, N-acyl taurates and fatty acid amides of methyl tauride), and similar. Suitable anionic surfactants include alkyl or alkylarylethoxy carboxylates of Formula 3: R - O - (CH 2 CH 20) n (CH 2) m - C 0 2 X (3) wherein R is an alkyl group of 8 to 22 carbon atoms or ^^, wherein R1 is an alkyl group of 4 to 16 carbon atoms; n is an integer of 1-20; m is an integer of 1-3; and X is a counter ion, such as hydrogen, sodium, potassium, lithium, ammonium, or an amine salt such as monoethanolamine, diethanolamine or triethanolamine. In one embodiment, in Formula 3, n is an integer from 4 to 10 and m is 1. In one embodiment, in Formula 3, R is an alkyl group of 8 to 16 carbon atoms. In one embodiment, in Formula 3, R is an alkyl group of 12 to 14 carbon atoms, n is 4, and m is 1.
In one embodiment, in Formula 3, R is ^^ and R 'is an alkyl group of 6 to 12 carbon atoms. In one embodiment, in Formula 3, R1 is an alkyl group of 9 carbon atoms, n is 10 and m is 1.
Said alkyl and alkylarylethoxy carboxylates are commercially available. These ethoxy carboxylates are typically available as the acid forms, which can be easily converted to the anionic form or salt. Commercially available carboxylates include, Neodox 23-4, an alkyl acid of 12 to 13 carbon atoms polyethoxy (4) carboxylic (Shell Chemical), and Emcol CNP-110, an alkylaryl acid of C9 polyethoxy (10) carboxylic acid (Witco Chemical). The carboxylates are also available from Clariant, for example, the product Sandopan® DTC, an alkyl acid of 13 carbon atoms polyethoxy (7) carboxylic acid.
Amphoteric Surfactants Amphoteric surfactants, or ampholytic agents, contain a hydrophilic group, both basic and acid, and an organic hydrophobic group. These ionic entities may be any of the anionic or cationic groups described herein for other types of surfactants. A basic nitrogen and an acid carboxylate group are the typical functional groups employed as the basic hydrophilic and acidic groups. In some surfactants, sulfonate, sulfate, phosphonate or phosphate provide the negative charge. Amphoteric surfactants can be broadly described as derivatives of secondary and tertiary aliphatic amines, wherein the aliphatic radical can be straight or branched chain and wherein one of the aliphatic substituents contains from about 8 to 18 carbon atoms and one contains a anionic water solubilizing group, for example, carboxy, sulfo, sulfate, phosphate, or phosphono. Amphoteric surfactants can be subdivided into two main classes known to those skilled in the art and described in "Surfactant Encyclopedia" Cosmetics & Toiletries, Vol. 104 (2) 69-71 (1989). The first class includes acyl / dialkyl ethylene diamine derivatives (e.g. 2-alkyl hydroxyethyl imidazoline) and its salts. The second class includes N-alkylamino acids and their salts, some amphoteric surfactants can be contemplated as being adjusted in both classes. Amphoteric surfactants can be synthesized by methods known to those skilled in the art. For example, 2-alkyl hydroxyethyl imidazoline is synthesized through a condensation and ring closure of a long chain carboxylic acid (or a derivative) with dialkyl ethylenediamine. Commercial amphoteric surfactants are derivatized through subsequent hydrolysis at the ring opening of the imidazoline via alkylation, for example with chloroacetic acid or ethyl acetate. During the alkylation, one or two carboxy-alkyls reacts to form a tertiary amine and an ether bond with different alkylating agents producing different tertiary amines. The long chain imidazoline derivatives having application in the present invention generally have the general formula: (M0N0) ACETAT0 (DI) PR0PI0NAT0 ANFOTERIC SULPHONATE pH Neutral - Z iterion wherein R is an acyclic hydrophobic group containing from about 8 to 18 carbon atoms and M is a cation to neutralize the charge of the anion, generally sodium. Amphoteric commercially prominent imidazoline derivatives that can be employed in the compositions herein include, for example: cocoanfopropionate, cocoanfocarboxypropionate, cocoanfoglycinate, cocoanfocarboxyglycinate, cocoanopropyl sulfonate, and cocoanfocarboxypropionic acid. The amphocarboxylic acids can be produced from fatty imidazolines, wherein the functionality of the dicarboxylic acid of the amphodicarboxylic acid is diacetic acid and / or dipropionic acid. The carboxymethylated compounds (glycinates) described herein above are frequently referred to as betaines. The botainas are a special class of amphotericites discussed later in the section entitled, Zwiterións Tensoactivos Agents. N-alkyl long chain amino acids are easily prepared through the reaction of RNH2, where R = straight or branched chain alkyl of 8 to 18 carbon atoms, fatty amines with halogenated carboxylic acids. Alkylation of the primary amino groups of an amino acid leads to secondary and tertiary amines. The alkyl substituents may have additional amino groups that provide more than one center of reactive nitrogen. The most commercial N-alkylamine acids are alkyl derivatives of beta-alanine or beta-N (2-carboxyethyl) alanine.
Examples of commercial N-amino acid ampholytes that have application in this invention include alkyl beta-amino dipropionates, RN (C2H4C00M) 2 and RNHC2H4C00M. In one embodiment, R may be an acyclic hydrophobic group containing from about 8 to about 18 carbon atoms, and M is a cation to neutralize the charge of the anion. Suitable amphoteric surfactants include those derived from coconut products, such as coconut oil or coconut fatty acid. Additional suitable coconut-derived surfactants include as part of their structure, a portion of ethylenediamine, an alkanolamide portion, an amino acid portion, eg, glycine, or a combination thereof; and an aliphatic substituent of about 8 to 18 (e.g., 12) carbon atoms. Said surface active agent can also be considered as an alkyl amphipicarboxylic acid. These amphoteric surfactants can include chemical structures represented as: C12-alkyl-C (0) -NH-CH2-CH2-N + (CH2-CH2-C02Na) 2-CH2-CH2-0H or C12-alkyl-C (0) ) -N (H) -CH2-CH2-N + (CH2-C02Na) 2-CH2-CH2-OH. Disodium cocoampropionate is a suitable amphoteric surfactant, and is commercially available under the trade name Miranol ™ FBS from Rhodia Inc., Cranbury, * N.J. Another surfactant surfactant derived from coconut suitable with the chemical name of coconut disodium amphodiacetate, is sold under the trade name Mirataine ™ JCHA, also from Rhodia Inc., Cranbury, N.J. A typical list of amphoteric classes, and species of these surfactants, is provided in the U.S. Patent. Do not. 3,929,678 issued to Laughiin and Heuring on December 30, 1975. Other examples are provided in "Surface Active Agents and Detergents "(Vol. I and II by Schwartz, Perry and Berch).
Zwitterionic Surfactants Zwitterionic surfactants can be considered as a subgroup of amphoteric surfactants and can include an anionic charge. Zwitterionic surfactants can be broadly described as secondary and tertiary amine derivatives, derivatives of heterocyclic secondary and tertiary amines, or derived from quaternary ammonium, quaternary phosphonium compounds and tertiary sulfonium. Typically, a zwitterionic surfactant includes a positively charged quaternary ammonium or, in some cases, a sulfonium or phosphonium ion; a carboxyl group of negative charge; and an alkyl group. Zwitterionic surfactants generally contain cationic and anionic groups, which ionize to an almost equal degree in the isoelectric region of the molecule and which can develop a strong "inner salt" attraction between the positive and negative charge centers. Examples of such zwitterionic synthetic surfactants include derivatives of aliphatic, phosphonium and sulfonium quaternary ammonium compounds, wherein the aliphatic radicals can be straight or branched chain, and wherein one of the aliphatic substituents contains from 8 to 18 carbon atoms and one contains an anionic water solubilizing group, for example, carboxy, sulfonate, sulfate, phosphate, or phosphonate. The betaine and sultaine surfactants are illustrative zwitterionic surfactants for use herein. A general formula of these compounds is: wherein R 1 contains an alkyl, alkenyl, or hydroxyalkyl radical of 8 to 18 carbon atoms, having from 0 to 10 portions of ethylene oxide and 0 to 1 glyceryl; And it is selected from the group consisting of nitrogen, phosphorus, and sulfur atoms; R2 is an alkyl or monohydroxyalkyl group, containing 1 to 3 carbon atoms; x is 1 when Y is a sulfur atom and 2 when Y is a nitrogen or phosphorus atom, R3 is an alkylene or hydroxyalkylene or hydroxy alkylene of 1 to 4 carbon atoms and Z is a radical selected from the group consisting of groups carboxylate, sulfonate, sulfate, phosphonate, and phosphate.
Examples of zwitterionic surfactants having the structures listed above include: 4- [N, N-di (2-hydroxyethyl) -N- or ctadecylammoni or] -butan-1-carboxylate; 5- [S-3-hydroxypropyl-S-hexadecylsulfonium] -3-hydroxypentan-1-sulfate; 3- [P, P-diethyl-P-3,6,9-trioxatetracosanphosphonium] -2-hydroxypropane-1-phosphate; 3- [N, N-dipropyl-N-3-dodecoxy-2-hydroxypropyl-ammonium] propan-1-phosphate; 3- (N, N-dimethyl-N-hexadecylammonium) -propan-1-sulfonate; 3- (N, N-dimethyl-N-hexadecylammonio) -2-hydroxy-propan-1-sulfonate; 4- [N, N-di (2 (2-hydroxyethyl) -N (2-hydroxydecyl) ammonium] butan-1-carboxylate; 3- [S-ethyl-S- (3-dodecoxy-2-h id roxipropi I) sulfonium] propan-1-phosphate; 3- [P, P-dimethyl-P-dodecylphosphonium] -propan-1-phosphonate; and S [N, N-di (3-hydroxypropyl) -N-hexadecylammonium] -2-hydroxy-pentan-1-sulfate The alkyl groups contained in said detergent surfactants may be straight or branched and saturated or unsaturated The zwitterionic surfactant suitable for use in the compositions herein includes a botaina of the structure general: These surface active agent betaines typically do not exhibit strong cationic or anionic characters at extreme pH values or show reduced water solubility on their isoelectric scale. Unlike quaternary ammonium salts "external", betaines are compatible with anionics. Examples of suitable betaines include coconut acylamidopropyl dimethyl betaine; hexadecyl dimethyl betaine; acylamidopropyl betaine of 12 to 14 carbon atoms; acylamidohexyldiethyl betaine of 8 to 14 carbon atoms; 4-acylmethylamidodiethylammonium-1-carboxybutane of 14 to 6 carbon atoms; acylamidodimethylbetaine of 16 to 18 carbon atoms; acylamidopentanediethylbetaine of 12-16 carbon atoms; and acylmethylamidodimethylbetaine of 12 to 16 carbon atoms. Sultains useful in the present invention include those compounds having the formula (R (R 1) 2 N + R 2 SO 3 wherein R is a hydrocarbyl group of 6 to 18 carbon atoms, each R 1 typically independently is alkyl of 1 to 3 carbon atoms, for example, methyl, and R 2 is a hydrocarbyl group of 1 to 6 carbon atoms, for example, an alkylene or hydroxyalkylene group of 1 to 3 carbon atoms A typical list of zwitterionic classes, and species of these surfactants, can be found in US Patent No. 3,929, 678, issued to Laughiin and Heuring on December 30, 1975. Other examples are provided in "Surface Active Agents and Detergents" (Vol. I and II by Schwarz, Perry and Berch.) In one embodiment, the composition of the present invention includes a betaine For example, the composition may include cocoamidopropyl betaine.
Modes of the Compositions Some examples of representative constituent concentrations for the embodiments of the compositions herein can be found in Tables A-C, in which the values are given in% / weight of the ingredients with reference to the total weight of the composition. In certain modalities, the proportions and quantities in Tables A-C can be modified by "approximately".
Table A Table B Table C Some examples of representative constituent concentrations for additional embodiments of the compositions herein can be found in Tables D-F, where the values are given in% / weight of the ingredients with reference to the total weight of the composition. In certain modalities, they are provided and quantities in Tables D-F can be modified by "approximately".
Table D Table E Table F In one embodiment, the compositions of the present invention include only ingredients that can be used in food products or in food washing, food handling or processing, for example, in accordance with government regulations (e.g., FDA or USDA) and the regulations 21 CFR §170-178. In one embodiment, the compositions of the present invention may include only ingredients at the appropriate concentrations for contact with incidental food by USEPA, CFR §180.940. The compositions herein may take the form of a liquid, solid, gel, paste, unit dose, gel pack, or the like. The compositions herein can be supplied in any of a variety of containers or medium, such as in a 2-compartment dispenser or as a pre-moistened towel, rag, or sponge.
Vehicle The composition of the invention may also include a vehicle. The vehicle provides a means that dissolves, suspends or carries the other components of the composition. For example, the vehicle can provide a means for the solubilization, suspension or production of the peroxycarboxylic acid and for the formation of an equilibrium mixture. The vehicle may also function to supply and moisten the antimicrobial composition of the invention in an object. Up to this point, the vehicle can contain any component or components that can facilitate these functions. In general, the vehicle mainly includes water that can promote solubility and work as a means for reaction and equilibrium. The vehicle may include or be primarily an organic solvent, such as simple alkyl alcohols, for example, ethanol, isopropanol, n-propanol, and the like. The polyols are also useful carriers, including glycerol, sorbitol, and the like. Suitable carriers include gylcol ethers. Suitable glycol ethers include diethylene glycol n-butyl ether, diethylene glycol n-propyl ether, diethylene glycol ethyl ether, diethylene glycol methyl ether, diethylene glycol t-butyl ether, dipropylene glycol n-butyl ether, ether dipropylene glycol methyl, dipropylene glycol ethyl ether, dipropylene glycol propyl ether, dipropylene glycol tert-butyl ether, ethylene glycol butyl ether, ethylene glycol propyl ether, ethylene glycol ethyl ether, ethylene glycol methyl ether, acetate of ethylene glycol methyl ether, propylene glycol n-butyl ether, propylene glycol ethyl ether, propylene glycol methyl ether, propylene glycol n-propyl ether, tripropylenic glycol methyl ether and tripropylenic glycol n-butyl ether, ether Ethylene glycol phenyl (commercially available as DOWANOL EPH ™ from Dow Chemical Co.), propylene glycol phenyl ether (commercially available as DOWANOL PPH ™ from Dow Chemical Co.), and the like, or mixtures thereof. Additional suitable commercially available glycol ethers (all available from Union Carbide Corp.) include Butoxyethyl PROPASOL ™, Butyl CARBITOL ™ acetate, Butyl CARBITOL ™, Butyl acetate CELLOSOLVE ™, Butyl CELLOSOLVE ™, Butyl DIPROPASOL ™, Butyl PROPASOL ™, CARBITOL ™ PM-600, CARBITOL ™ Low Gravity, CELLOSOLVE ™ acetate, CELLOSOLVE ™ Ester EEP ™, FILMER IBT ™, Hexyl CARBITOL ™, Hexil CELLOSOLVE ™, Methyl CARBITOL, Methyl Acetate CELLOSOLVE, Methyl CELLOSOLVE ™, Methyl DIPROPASOL ™, Methyl PROPASOL ™ Methyl acetate, Methyl PROPASOL ™, Propyl CARBITOL ™, Propil CELLOSOLVE ™, Propil DIPROPASOL ™ and Propil PROPASOL ™. In general, the vehicle forms a large portion of the composition of the invention and may be the remainder of the composition in addition to the active antimicrobial components, solubilizer, oxidizing agent, auxiliaries, and the like. Here again, the concentration and type of vehicle will depend on the nature of the composition as a whole, environmental storage, and method of application that includes medium chain peroxycarboxylic acid concentration, among other factors. Notably, the vehicle should be selected and used at a concentration that does not inhibit the antimicrobial efficacy of the medium chain peroxycarboxylic acid in the composition of the invention. In certain embodiments, the composition herein includes from about 0 to about 98% by weight of the vehicle, from about 0.001 to about 99.99% by weight of the vehicle, from about 0.2 to about 60% by weight of the vehicle, from about 1 to about 98% by weight of the vehicle, from about 5 to about 99.99% by weight of the vehicle, from about 5 to about 97% by weight of the vehicle, about 5 to about 90% by weight of the vehicle, from about 5 to about 70% by weight of the vehicle, from about 5 to about 20% by weight of the vehicle, from about 10 to about 90% by weight of the vehicle, of about 10 to approximately 80% by weight of the vehicle, from about 10 to about 50% by weight of the vehicle, from about 10 to about 20% by weight of the vehicle, of about to about * 70% by weight of the vehicle, from about 15 to about 80% by weight of the vehicle, from about 20 to about 70% by weight of the vehicle, from about 20 to about 50% by weight of the vehicle, of about 20 at about 40% by weight of the vehicle, from about 20 to about 30% by weight of the vehicle, from about 30 to about 75% by weight of the vehicle, from about 30 to about 70% by weight of the vehicle, from about 40 to about 99.99% by weight of the vehicle, from about 40 to about 90% by weight of the vehicle, or from about 60 to about 70% by weight of the vehicle. The composition may include any of these scales or amounts not modified by approximately.
Oxidizing Agent The compositions and methods herein may include any of a variety of oxidizing agents. The oxidizing agent can be used to maintain or generate peroxycarboxylic acids.
Examples of inorganic oxidizing agents include the following types of compounds or sources of these compounds, or alkali metal salts which include these types of compounds, or which form an adduct therewith: hydrogen peroxide; oxidizing agents of group 1 (IA), for example lithium peroxide, sodium peroxide and the like; oxidizing agents of group 2 (HA), for example magnesium peroxide, calcium peroxide, strontium peroxide, barium peroxide, and the like; oxidizing agents of group 12 (IIB), for example zinc peroxide, and the like; oxidizing agents of group 13 (HIA), for example boron compounds, such as perborates, for example sodium perborate hexahydrate of the formula Na2 [Br2 (0) 2 (OH) 4] «6H20 (also referred to as tetrahydrate-perborate of sodium and formerly written as NaBo3 »4H20); sodium tetrahydrate peroxybrate of the formula Na2Br2 (02) 2 [(OH) 4 »4H20 (also referred to as sodium perborate trihydrate, and formerly written as NaB03» 3H20); sodium peroxybrate of the formula Na2 [B2 (02) 2 (OH) 4] (also referred to as sodium perborate monohydrate and formerly written as NaB03 »H20); and the like; in one modality, perborate; oxidizing agents of group 14 (IVA), for example persilicates and peroxycarbonates, which are also called percarbonates, such as persilicates or alkali metal peroxycarbonates; and the like; in one embodiment, percarbonate; in one modality, persilicate; oxidizing agents of group 15 (VA), for example peroxynitroso acid and its salts; peroxyphosphoric acids and their salts, for example, perfosphates; and the like; in one embodiment, perfosfato; oxidizing agents of the group 16 (VIA), for example peroxysulfuric acids, such as peroxymonosulfuric and peroxydisulfuric acids, and their salts, such as persulfates, for example, sodium persulfate; and the like; in one modality, persulfate; oxidizing agents of the Vlla group such as sodium periodate, potassium perchlorate and the like. Other active inorganic oxygen compounds may include transition metal peroxide; and other peroxygen compounds and their mixtures. In one embodiment, the compositions and methods of the present invention employ one or more (for example, at least one) of the inorganic oxidizing agents listed above. Suitable inorganic oxidizing agents include ozone, hydrogen peroxide, a hydrogen peroxide adduct, group IIIA oxidizing agents, VIA group oxidizing agents, VA group oxidizing agents, VIIA group oxidizing agents, or mixtures thereof.
Suitable examples of said inorganic oxidizing agents include percarbonate, perborate, persulfate, perfosphate, persilicate, or mixtures thereof.
Hydrogen peroxide presents a suitable example of an inorganic oxidizing agent. Hydrogen peroxide can be provided as a mixture of hydrogen peroxide and water, for example, as liquid hydrogen peroxide in an aqueous solution. Hydrogen peroxide is commercially available at concentrations of 35%, 70%, and 90% in water. For security, 35% is commonly used. The compositions herein can include, for example, from about 2 to about 30% by weight or from about 5 to about 20% by weight of hydrogen peroxide. In one embodiment, the inorganic oxidizing agent includes a hydrogen peroxide adduct. For example, the inorganic oxidizing agent may include hydrogen peroxide, hydrogen peroxide adduct, or mixtures thereof. Any of a variety of hydrogen peroxide adducts is suitable for use in the compositions and methods herein. For example, suitable hydrogen peroxide adducts include percarbonate salt, urea peroxide, peracetyl borate, an adduct of H202 and polyvinyl pyrrolidone, sodium percarbonate, potassium percarbonate, and mixtures thereof, or the like. Suitable hydrogen peroxide adducts include percarbonate salt, urea peroxide, peracetyl borate, an adduct of H202 and polyvinyl pyrrolidone, or mixtures thereof. The hydrogen peroxide adducts include sodium percarbonate, potassium percarbonate, or mixtures thereof, for example sodium percarbonate.
In one embodiment, the compositions and methods herein may include hydrogen peroxide as the oxidizing agent. The hydrogen peroxide in combination with the percarboxylic acid can provide some antimicrobial action against microorganisms. In addition, hydrogen peroxide can provide an effervescent action, which can irrigate any surface where it is applied. The hydrogen peroxide can lock with a mechanical washing action once applied that also cleans the surface of an object. An additional advantage of hydrogen peroxide is the food compatibility of this composition after use and decomposition. In certain embodiments, the composition herein includes from about 0.001 to about 30% by weight of oxidizing agent, from about 0.001 to about 10% by weight of oxidizing agent, from 0.002 to about 10% by weight of oxidizing agent, of about 2 to about 30% by weight of oxidizing agent, from about 2 to about 25% by weight of oxidizing agent, from about 2 to about 20% by weight of oxidizing agent, from about 4 to about 20% by weight of oxidizing agent, from about 5 to about 10% by weight of oxidizing agent, or from about 6 to about 10% by weight of oxidizing agent. The composition may include any of these scales or amounts not modified by approximately.
Acidulant In one embodiment, the composition herein may include an acidulant. The acidulant can act as a catalyst for the conversion of carboxylic acid to peroxycarboxylic acid. The acidulant can be effective to form a concentrate composition with a pH value of about 1 or less. The acidulant can be effective to form a use composition with a pH value of about 5, about 5 or less, about 4, about 4 or less, about 3, about 3 or less, about 2, about 2 or less, or Similar. In one embodiment, the acidulant includes an inorganic acid. Suitable inorganic acids include sulfuric acid, phosphonic acid, nitric acid, hydrochloric acid, methanesulfonic acid, ethanesulfonic acid, propanesulfonic acid, butanesulfonic acid, xylene sulfonic acid, benzenesulfonic acid, and mixtures thereof, or the like. In one embodiment, the acidulant includes a carboxylic acid with a pKa of less than 4. Suitable carboxylic acids with a pKa of less than 4 include hydroxyacetic acid, hydroxypropionic acid, other hydroxycarboxylic acids, mixtures thereof, or the like. Said acidulant is present at a concentration where it does not act as a solubilizer. In certain embodiments, the composition herein includes from about 0.001 to about 50% by weight of acidifier, from about 0.001 to about 30% by weight of acidifier, from about 1 to about 50% by weight of acidifier, from about 1 to about approximately % by weight of acidulant, from about 2 to about 40% by weight of acidulant, from about 2 to about 10% by weight of acidulant, of about 3 to about 40% by weight of acidulant, from about 5 to about 40% by weight of acidulant, from about 5 to about 25% by weight of acidulant, from about 10 to about 40% by weight of acidulant, of about 10 to about 30% by weight of the acidulant, from about 15 to about 35% by weight of acidulant, from about 15 to about % by weight of the acidulant, or from about 40 to about 60% by weight of acidulant. The composition may include any of these scales or amounts not modified by approximately.
Stabilization Agent One or more stabilization agents may be added to the composition of the invention, for example, to stabilize the peracid and hydrogen peroxide and prevent premature oxidation of this constituent within the composition of the invention. Suitable stabilizing agents include chelating or sequestering agents. Suitable sequestering agents include organic chelating agents that sequester metal ions in solution, particularly transition metal ions.
Such sequestering agents include amino- or hydroxy-polyphosphonic acid complexing agents (either in acid or soluble salt forms), carboxylic acids (eg, polymeric polycarboxylate), hydroxycarboxylic acids, or aminocarboxylic acids. The sequestering agent can be or include phosphonic acid or phosphonate salt. Phosphonic acids and phosphonate salts include 1-hydroxy-ethylidene-1,1-diphosphonic acid (CH3C (P03H2) 2OH) (HEDP); ethylene diamine tetrakis methylene phosphonic acid (EDTMP); diethylenetriamine pentakis methylene phosphonic acid (DTPMP); cyclohexane-1,2-tetramethylene phosphonic acid; amino [tri (methylene phosphonic)] acid; (ethylene diamine acid [tetramethylene phosphonic acid]]; 2-fosfen butan-1, 2,4-tricarboxylic acid; or its salts, such as the alkali metal salts, the ammonium salts, or the alkylarylamine salts, such as mono, di, or tetra-ethanolamine salts; or its mixtures. Suitable organic phosphonates include HEDP. Commercially available food additive chelating agents include phosphonates sold under the tradename DEQUEST® including, for example, 1-hydroxyethylidene-1,1-diphosphonic acid, available from Monsanto Industrial Chemicals Co., St. Louis, MO, as DEQUEST® 2010; amino acid (tri (methylene-phosphonic)), (N [CH2P03H2] 3), available from Monsanto as DEQUEST® 2000; ethylenediamine [tetra (methylene phosphonic)] acid available from Monsanto as DEQUEST® 2041; and 2-phosphonobutan-1, 2,4-tricarboxylic acid available from Mobay Chemical Corporation, Inorganic Chemicals Division, Pittsburgh, PA, as Bayhibit AM. The sequestering agent can be or include an aminocarboxylic type sequestering agent. Sequestrants of the appropriate aminocarboxylic acid type include the acids or alkali metal salts thereof, for example, amino acetates and their salts. Suitable aminocarboxylates include N-hydroxyethylaminodiacetic acid; hydroxyeti lendiaminetetraacetic acid, nitrilotriacetic acid (NTA); ethylenediaminetetraacetic acid (HDTA) N-hydroxyethyl-ethylenediaminetriacetic acid (HEDTA); diethylenetriaminepentaacetic acid (DTPA); and alanite-N, N-diacetic acid; and the like; and its mixtures. The sequestering agent can be or include a polycarboxylate. Suitable polycarboxylates include, for example, polyacrylic acid, maleic / olefin copolymer, acrylic / maleic copolymer, polymethacrylic acid, copolymers of acrylic acid-methacrylic acid, hydrolyzed polyacrylamide, hydrolyzed polymethacrylamide, hydrolyzed polyamide-methacrylamide copolymers, hydrolyzed polyacrylonitrile, hydrolyzed polymethacrylonitrile. , hydrolyzed acrylonitrile-methacrylonitrile copolymers, polymaleic acid, polyfumárico acid, copolymers of acrylic and itaconic acid, phosphite-polycarboxylate, acid and their salt forms, mixtures thereof, and the like. In certain embodiments, the composition herein includes from about 0.5 to about 50% by weight of the sequestering agent, from about 1 to about 50% by weight of the sequestering agent, from about 1 to about 30% by weight of the sequestering agent. Sequestration, from about 1 to about 15% by weight of the sequestering agent, from about 1 to about 5% by weight of the sequestering agent, from about 1 to about 4% by weight of the sequestering agent, from about 2 to about 10. % by weight of the sequestering agent, from about 2 to about 5% by weight of the sequestering agent, or from about 5 to about 15% by weight of the sequestering agent. The composition may include any of these scales or amounts not modified by approximately. In certain embodiments, the composition herein includes from about 0.001 to about 50% by weight of stabilizing agent, from about 0.001 to about 5% by weight of stabilizing agent, from about 0.5 to about 50% by weight of the stabilizing agent. stabilization, from about 1 to about 50% by weight of stabilizing agent, from about 1 to about 30% by weight of stabilizing agent, from about 1 to about 10% by weight of stabilizing agent, from about 1 to about 5% by weight of stabilizing agent, from about 1 to about 3% by weight of stabilizing agent, from about 2 to about 10% by weight of stabilizing agent, from about 2 to about 5% by weight of stabilizing agent, or from about 5 to about 15% by weight of stabilizing agent. The composition may include any of these scales or amounts not modified by approximately.
Auxiliaries The antimicrobial composition of the invention can also include any number of auxiliaries. Specifically, the composition of the invention may include an antimicrobial solvent, antimicrobial agent, wetting agent, defoaming agent, thickener, surfactant, foaming agent, solidifying agent, cosmetic enhancement agent (ie, dye (e.g. pigment), deodorant or perfume), among any number of constituents that can be added to the composition. Said auxiliaries can be pre-formulated with the antimicrobial composition of the invention or added to the system simultaneously, or even after the addition of the antimicrobial composition. The composition of the invention may also contain any number of other constituents as needed by the application, which are known and facilitate the activity of the present invention.
Antimicrobial Solvent Any of a variety of solvents may be useful as an antimicrobial solvent in the compositions herein. An antimicrobial solvent may be added to the compositions of use before use. Suitable antimicrobial solvents include acetamidophenol; acetanilide; acetophenone; 2-acetyl-1-methylpyrrole; benzyl acetate; benzyl alcohol; Benzyl benzoate; benzyloxyethanol; essential oils (for example, benzaldehyde, pinenos, terpinoles, terpinenos, carbona, cinnamaldehyde, borneol and their esters, citrals, ionenes, jasmine oil, limonene, dipentene, linalool and their esters); diester dicarboxylates (e.g., dibasic esters) such as dimethyl adipate, dimethyl succinate, dimethyl glutarate (including products available under the trade designations DBE, DBE-3, DBE-4, DBE-5, DBE-6, DBE -9, DBE-IB, and DBE-ME from DuPont Nylon), dimethyl malonate, diethyl adipate, diethyl succinate, diethyl glutarate, dibutyl succinate, and dibutyl glutarate; dimethyl sebacate, dimethyl pimelate, dimethyl suberate; dialkyl carbonates such as dimethyl carbonate, diethyl carbonate, dipropyl carbonate, diisopropyl carbonate, and dibutyl carbonate; organo-nitriles such as acetonitrile and benzonitrile; and phthalate esters such as dibutyl phthalate, diethylhexyl phthalate, and diethyl phthalate. Mixtures of antimicrobial solvents can be used, if desired. The antimicrobial solvent can be selected based on the characteristics of the surface and microbes to which the antimicrobial composition will be applied and the nature of any coating, soil or other material that will be in contact with the antimicrobial composition and optionally removed from the surface . Polar solvents, and solvents that are capable of hydrogen bonding, will typically work well on a variety of surfaces and microbes, and thus, for such applications, can be selected. In certain applications, the antimicrobial solvent may be selected from a high antimicrobial flash point (eg, greater than about 30 ° C, greater than about 50 ° C, or greater than about 100 ° C), low odor, and low toxicity to the human being and animals. In one embodiment, the antimicrobial solvent is compatible as an indirect or direct additive or food substance, especially those described in Code of Federal Regulations (CFR), Title 21 - Food and Drugs, parts 170 to 186. the compositions of the invention should contain a sufficient antimicrobial solvent to provide the desired regimen and type of microbial reduction. The composition herein may include an effective amount of an antimicrobial solvent, such as from about 0.01% by weight to about 60% by weight of antimicrobial solvent, from about 0.05% by weight to about 15% by weight of antimicrobial solvent, or from about 0.08% by weight to about 5% by weight of antimicrobial solvent.
Additional Antimicrobial Agent The antimicrobial compositions compositions of the invention may contain an additional antimicrobial agent. An additional antimicrobial agent can be added to the compositions of use before use. Suitable antimicrobial agents include carboxylic esters (e.g., p-hydroxy alkyl benzoates and alkyl cinnamates), sulfonic acids (e.g., dodecylbenzene sulphonic acid), iodine compounds or active halogen compounds (e.g., elemental halogens, halogen oxides) , (for example, NaOCI, HOCI, HOBr, Cl02), iodide, interhalogenides (for example, iodine monochloride, iodine bichloride, iodine trichloride, iodine tetrachloride, bromine chloride, iodine monobromide, or iodine dibromide) , polyhalogenides, hypochlorite salts, hypochlorous acid, hypobromite salts, hypobromous acid, chloro- and bromo-hydantoins, chlorine dioxide and sodium chlorite), organic peroxides including benzoyl peroxide, alkyl benzoyl peroxides, ozone, generators single band oxygen, and mixtures thereof, phenolic derivatives (eg, o-phenyl phenol, o-benzyl-p-chlorophenol, ter-amyl phenol and alkyl of 6 carbon atoms to hydroxyl) i benzoates), quaternary ammonium compounds (eg, alkyldimethylbenzyl ammonium chloride, dyalkyl imethyl ammonium chloride and mixtures thereof), and mixtures of said antimicrobial agents, in an amount sufficient to provide the desired degree of protection microbial The composition herein may include an effective amount of antimicrobial agent, such as about 0. 001 to about 60% by weight of the antimicrobial agent, from about 0.01% by weight to about 15% by weight of the antimicrobial agent, or from about 0.08% by weight to about 2.5% by weight of the antimicrobial agent.
Wetting Agents or Defoamers Also useful in the composition of the invention are wetting and defoaming agents. The wetting agents function to increase the surface contact or penetration activity of the antimicrobial composition of the invention. Wetting agents, which may be used in the composition of the invention include any of those constituents known in the art to elevate the surface activity of the composition of the invention. In general, defoamers that can be used according to the invention, include silica and silicones; acids or aliphatic esters; alcohols; sulfates or sulphonates; amines or amides; halogenated compounds such as fluorochlorohydrocarbons; vegetable oils, waxes, mineral oils, as well as their sulfated derivatives; fatty acid soaps such as alkali metal and alkaline earth metal soaps; and phosphates and phosphate esters such as alkyl and alkaline diphosphates, and tributyl phosphates among others; and mixtures thereof. In one embodiment, the compositions herein may include anti-foaming agents or defoamers, which are of food grade quality given the application of the method of the invention. Up to this point, one of the most effective anti-foaming agents includes silicones. Silicones such as dimethyl silicone, polysiloxane glycol, methylphenol polysiloxane, trialkyl or tetralkyl silanes, hydrophobic silica defoamers, and mixtures thereof can all be used in defoaming applications. Commonly available commercial defoamers include silicones such as Ardefoam® from Armor Industrial Chemical Company, which is a silicone bonded in an organic emulsion; Foam Hill® or Kresseo® available from Krusable Chemical Company which are silicone and non-silicone type defoamers, as well as silicone esters; and Anti-Foam A® and DC-200 from Dow Corning Corporation, which are food-grade type silicones among others. These defoamers may be present at a concentration scale of about 0.01% by weight to 5% by weight, from about 0.01% by weight to 2% by weight, or from about 0.01% by weight to about 1% by weight.
Thickening or Geling Agents The compositions herein may include any of a variety of known thickeners. Suitable thickeners include natural gums such as xanthan gum, guar gum, or other plant mucilage gums; polysaccharide-based thickeners, such as alginates, starches, and cellulosic polymers (e.g., carboxymethylcellulose); polyacrylate thickeners; and hydrocolloid thickeners, such as pectin. In one embodiment, the thickener leaves no contamination residue on the surface of an object. For example, thickeners or gelling agents can be compatible with food or other sensitive products in contact areas. In general, the concentration of the thickener used in the compositions or methods herein will be dictated by the desired viscosity within the final composition. However, as a general guideline, the viscosity of the thickener within the composition herein ranges from about 0.1% by weight to about 1.5% by weight, from about 0.1% by weight to about 1.0% by weight, or about 0.1% by weight to about 0.5% by weight.
Solidification Agent The compositions herein may include a solidification agent, which may participate to maintain the compositions in a solid form. Suitable solidifying agents include a solid polyethylene glycol (PEG), an EO / PO solid block copolymer, and the like; an amide, such as stearic monoethanolamide, lauric diethanolamide, an alkylamide, or the like; starches that have been made soluble in water through an acid or alkaline treatment process; cellulose that have been made soluble in water; an inorganic agent, or the like; poly (maleic anhydride / methyl vinyl ether); polymethacrylic acid; other generally functional or inert materials with high melting points, and the like. In certain embodiments, the solidification agent includes solid PEG, for example PEG 1500 to PEG 20,000. In certain embodiments, the PEG includes PEG 1450, PEG 3350, PEG 4500, PEG 8000, PEG 20,000, and the like. Additional suitable solidification agents include EO / PO block copolymers such as those sold under the tradenames of Pluronic 108, Pluronic F68; amides such as lauric diethanolamide or cocodietilen amide; and similar. In certain embodiments, the solidifying agent includes a combination of solidifying agents, such as the combination of PEG and an EO / PO block copolymer (such as a Pluronic) and a combination of PEG and an amide (such as lauric diethanolamide). , amide or monoethanol stearic amide).
Fragrance In one embodiment, the composition herein includes a fragrance. The fragrance can be selected to avoid undesirable effects on the stability or efficacy of the composition. Suitable fragrances include amyl acetate, isobornyl acetate, and alkyl salicylates, such as methyl salicylate. In one embodiment, the fragrance may include an alkyl salicylate.
Compositions of Use The compositions herein include compositions of concentrate and compositions of use. For example, a concentrate composition can be diluted, for example with water, to form a composition of use. In one embodiment, a concentrate composition can be diluted to a use solution before being applied to an object. For reasons of economy, the concentrate can be sold and an end user can dilute the concentrate with water or an aqueous diluent to give a use solution. The level of active components in the concentrate composition depends on the intended dilution factor and the desired activity of the medium chain peroxycarboxylic acid compound. In general, a dilution of about 28.35g of fluid to about 75.6 liters of water to about 141.7 grams of fluid to about 3.78 liters of water is used for aqueous antimicrobial compositions. Higher-use dilutions may be used if a high-use temperature (greater than 25 ° C) or an extended exposure time (greater than 30 seconds) is used. On the typical use site, the concentrate is diluted with a higher proportion of water using commonly available service or current water, mixing the materials at a dilution ratio of approximately 85.05 to approximately 567 grams of concentrate per 378.4 liters of water. For example, a use composition may include from about 0.01 to about 4% by weight of a concentrate composition and from about 96 to about 99.99% by weight of diluent; approximately 0. 5 to about 4% by weight of a concentrate composition and from about 96 to about 99.5% by weight of diluent; from about 0.5, about 1, about 1.5, about 2, about 2.5, about 3, about 3.5, or about 4% by weight of a concentrate composition; from about 0.01 to about 0.1% by weight of a concentrate composition; or about 0.01, about 0.02, about 0.03, about 0.04, about 0.05, about 0.06, about 0.07, about 0.08, about 0.09, or about 0.1% by weight of a concentrate composition. The amounts of an ingredient in a composition of use can be calculated from the amounts listed above for concentrate compositions and these dilution factors. The methods of the present invention can employ medium chain peroxycarboxylic acid at an effective concentration to reduce the population of one or more microorganisms. Said effective concentrations include from about 2 to about 500 ppm of medium chain peroxycarboxylic acid, from about 2 to about 300 ppm of medium chain peroxycarboxylic acid, from about 5 to about 100 ppm of medium chain peroxycarboxylic acid, from about 5 to about about 60 ppm of medium chain peroxycarboxylic acid, from about 5 to about 45 ppm of medium chain peroxycarboxylic acid, from about 5 to about 35 ppm of medium chain peroxycarboxylic acid, from about 5 to about 25 ppm of peroxycarboxylic acid chain medium, from about 8 to about 50 ppm of medium chain peroxycarboxylic acid, from about 10 to about 500 ppm of medium chain peroxycarboxylic acid, from about 10 to about 50 ppm of medium chain peroxycarboxylic acid, from about 40 to about 140 ppm of medium chain peroxycarboxylic acid, from about 100 to about 250 ppm of medium chain peroxycarboxylic acid, or from about 200 to about 300 ppm of medium chain peroxycarboxylic acid. In one embodiment, the use composition may include from about 2 to about 500 ppm of medium chain peroxycarboxylic acid, from about 5 to about 2000 ppm of medium chain carboxylic acid, from about 95 to about 99.99% by weight of carrier and / or diluent (e.g., water); and from about 2 to about 23,000 ppm of polyalkylene oxide, polyalkylene oxide blocked at its end, alkoxylated surfactant, anionic surfactant, or mixtures thereof. The level of reactive species, such as peroxycarboxylic acids and / or hydrogen peroxide, in a use composition can be affected, typically decreased, by the organic matter that is in or added to the composition of use. For example, when the composition of use is a bath or spray used to wash an object, the earth on the object may consume the peroxy acid and the peroxide. In this manner, the amounts of the present ingredients in the compositions of use refer to the composition before or near use, it being understood that the amounts will decrease as organic matter is added to the composition of use. In one embodiment, the composition of use herein can be made more acidic by passing the concentrate through an acidification column, or by adding additional acidulant to the use composition.
Other Fluid Compositions Compositions herein may include a critical, quasi-critical, or supercritical (densified) fluid and an antimicrobial agent or a gaseous composition of an antimicrobial agent. The densified fluid can be an almost critical, critical, super critical fluid or another type of fluid with supercritical fluid properties. Stable fluids for densification include carbon dioxide, nitrous oxide, ammonia, xenon, krypton, methane, ethane, ethylene, propane, certain fluoroalkanes (e.g., chlorotrifluoromethane and monofluoromethane), and the like, or mixtures thereof. Suitable fluids include carbon dioxide. In one embodiment, the compositions or methods herein include densified carbon dioxide, medium chain peroxycarboxylic acid, and medium chain carboxylic acid. Said composition can be referred to as a medium chain peroxycarboxylic acid composition of densified fluid. In another embodiment, the antimicrobial composition includes the fluid, an antimicrobial agent, and any of the optional or added ingredients, but is in the form of a gas. Antimicrobial densified fluid compositions can be applied through various methods known to those skilled in the art. Such methods include ventilation in an object in a vessel containing the densified fluid and the antimicrobial agent. The aqueous phase, which includes hydrogen peroxide, is advantageously retained in the device. The ventilated gas includes an effective amount of antimicrobial agent making the densified fluid peroxycarboxylic acid compositions effective antimicrobial agents. Due to the high nature of the pressure of the densified fluid compositions of the invention, these compositions are typically applied by venting a container containing the composition through a pressure release device that is designed to promote rapid efficient coverage of an object . Devices including said pressure relief device include sprinklers, nebulizers, foaming agents, foam pad applicators, brush applicators, or any other device that can allow the expansion of fluid materials from high pressure to ambient pressure, while the material is applied to an object. The peroxycarboxylic acid composition of densified fluid can also be applied to an object through any of a variety of known methods for applying gaseous agents to an object. The antimicrobial compositions of densified fluid can be made by reacting an oxidizable substrate with an oxidizing agent in a medium comprising a densified fluid to form an antimicrobial composition. This reaction is typically carried out in a container suitable for containing a densified fluid. The reaction may include adding to the container the oxidizable substrate and the oxidizing agent, and adding fluid to the container to form the densified fluid. In one embodiment, the reactions between a medium chain carboxylic acid and hydrogen peroxide to form the corresponding peroxycarboxylic acid. Hydrogen peroxide is commonly applied in the form of an aqueous solution of hydrogen peroxide. The supercritical, subcritical, quasi-critical dense fluids and other solvents that can be employed with such fluids are described in the U.S. Pat. No. 5,306,350, issued April 26, 1994 to Hoy et al., Which is incorporated herein by reference. Supercritical forms and other forms of carbon dioxide, and co-solvents, co-surfactants, and other additives that can be employed with these forms of carbon dioxide are described in US Pat. No. 5,866,005, issued February 2, 1999 to DeSimone et al., Which is incorporated herein by reference.
Manufacturing of Medium Chain Peroxycarboxylic Acid Compositions The compositions of or used in the methods of the invention can be made by combining or reacting the medium chain carboxylic acid and the oxidizing agent, such as hydrogen peroxide. The combination or reaction of the medium chain carboxylic acid and the oxidizing agent results in the production of a medium chain peroxycarboxylic acid. In one embodiment, the combination includes mixing. The combined formulation for making the compositions herein may also include the solubilizer, the acidulant, the carrier, the stabilizing agent, mixtures thereof, or the like. In one embodiment, the formulation includes the solubilizer. Alternatively, one or more (for example, at least one) of the solubilizer, the acidulant, the carrier, or mixtures thereof may be added after the production of some or all of the peroxycarboxylic acid. In one embodiment, the present invention includes a method for making a medium chain peroxycarboxylic acid. The method may include combining or reacting the medium chain carboxylic acid, the carrier (e.g., water), and the oxidizing agent (e.g., hydrogen peroxide), the solubilizer, acidulant, and stabilizing agent. The method may include mixing the ingredients at concentrations of from about 1 to about 10% by weight of medium chain carboxylic acid, from about 0 to about 99% by weight of carrier, from about 2 to about 30% by weight of oxidizing agent, from about 1 to about 80% by weight of solubilizer, from about 1 to about 50% by weight of acidifier, and from about 0.5 to about 50% by weight of stabilizing agent. The method may include mixing the ingredients at concentrations of from about 1 to about 10% by weight of medium chain carboxylic acid, from about 5 to about 97% by weight of carrier, from about 2 to about 30% by weight of oxidizing agent, from about 1 to about 20% by weight of solubilizer (eg, microemulsion-forming surface active agent), from about 1 to about 50% by weight of acidifier, and from about 0.5 to about 50% by weight of a stabilizing agent. The compositions herein also include compositions wherein these combinations of ingredients have been converted to a medium chain peroxycarboxylic acid of equilibrium formation. In one embodiment, the method herein yields advantageously high levels of medium chain peroxycarboxylic acid in advantageously short times. Advantageously short times include, for example, about 24 or less hours, about 6 or less hours, about 3 or less hours, or about 0.5 hours. In one embodiment, high levels of the medium chain peroxycarboxylic acid can be obtained almost instantaneously. High levels of medium chain peroxycarboxylic acid can be obtained by converting 20% or more, 25% or more, 30% or more, 35% or more, or 40% of the medium chain carboxylic acid to the medium chain peroxycarboxylic acid. Such conversions can be achieved at room temperature or in a reaction initiated at room temperature and heated through an exotherm. Lower temperatures may require a longer time to reach the same amount of conversion. The amount of time is typically measured from the time when the carboxylic acid, oxidizing agent, solubilizer, and acidifier are combined or reacted. For example, in one embodiment, the method herein can convert 20% or more of the medium chain carboxylic acid to medium chain peroxycarboxylic acid in about 24 or fewer hours. For example, in one embodiment, the method herein can convert about 25% or more of the medium chain carboxylic acid to the medium chain peroxycarboxylic acid in about 24 or fewer hours. For example, in one embodiment, the method herein can convert from about 30% or more of the medium chain carboxylic acid to medium chain peroxycarboxylic acid in about 24 or fewer hours. For example, in one embodiment, the method herein can convert from about 35% or more of the medium chain carboxylic acid to the medium chain peroxycarboxylic acid in about 24 or fewer hours. For example, in one embodiment, the method herein can convert about 40% of the medium chain carboxylic acid to the medium chain peroxycarboxylic acid in about 24 or fewer hours. In one embodiment, the manufacture of the compositions herein includes forming a microemulsion. A microemulsion can be formed by mixing the desired ingredients, including a surfactant microemulsion forming agent. The method may include combining or mixing the ingredients at a concentration of about 1 to about 10% by weight of medium chain carboxylic acid, from about 5 to about 97% by weight of the carrier (e.g., water), from about 2 to about 30% by weight of oxidizing agent, from about 1 to about 20% by weight of microemulsion-forming surfactant, and from about 1 to about 50% by weight of stabilizer. The compositions herein also include compositions, wherein these combinations of ingredients have reached the medium chain peroxycarboxylic acid. Components can be added in any of a variety of orders. In one embodiment, the formation of the medium chain peroxycarboxylic acid can proceed rapidly after the addition of the microemulsion forming surfactant. Although not limiting to the present invention, it is believed that the formation of the microemulsion can significantly increase the effective surface area of the medium chain carboxylic acid (as micro-droplets) for the reaction. The compositions herein can be made in a plant as a concentrate and sent to an end user who only needs to dilute the concentrate to form a composition of use. The medium chain peroxycarboxylic acid compositions herein can also be made at the site of use. For example, the product can be sent as a composition of two or more parts or as a team. The user can then combine the two or more compositions or components of the equipment to produce the medium chain peroxycarboxylic acid compositions herein. Alternatively, a system for formulating equipment and containers of starting materials at the site of use can be provided, and programmed or operated to mix and disperse the medium chain peroxycarboxylic acid compositions herein. In one embodiment, the product can be supplied as a composition of two or more parts. A composition may include carboxylic acid and one or more (eg, at least one) of solubilizer, acidulant, vehicle, stabilizing agent, mixtures thereof, or the like. The second composition may include an oxidizing agent and one or more of (for example, at least one) solubilizer, acidifier, carrier, stabilizing agent, mixtures thereof, or the like. Alternatively, the solubilizer, acidulant, vehicle, stabilizing agent, mixtures thereof, or the like can be supplied as additional compositions. In one embodiment, the pH of a concentrate composition can be less than about 1 or about 2. In one embodiment, the pH of a 1% solution or 1.5% of the mixture in water is about 1 or 2 to about 7, depending on the other components of the 1% solution. In one embodiment, the pH of a use composition may be from about 2 to about 7, depending on the other components. Some examples of representative concentrations of ingredients useful in the methods herein for making medium chain peroxycarboxylic acid compositions can be found in Tables G and H, where the values are given in% by weight,% / P, of the ingredients with reference to the total weight of the composition. In certain modalities, the proportions and quantities in the G-H boxes can be modified by "approximately". The compositions herein also include compositions wherein these combinations of ingredients have been converted to a medium chain peroxycarboxylic acid.
Table G Table H Methods Employing Medium Chain Peroxycarboxylic Acid Compositions The present invention includes methods employing medium chain peroxycarboxylic acid compositions.
Typically, these methods employ the antimicrobial or bleach activity of the peroxycarboxylic acid. For example, the invention includes a method for reducing a microbial population, a method for reducing the population of a microorganism on the skin, a method for treating a skin disease, a method for reducing an odor, or a method for bleaching. These methods can operate on an object, surface, in a body or stream of water or in a gas, or the like, by contacting the object, surface, body, or stream with an ester-stabilized peroxycarboxylic acid composition of the invention. The contact may include any of the numerous methods for applying a composition, such as spraying the composition, immersing the object in the composition, treating the object with the composition with foam or gel, or a combination thereof. The compositions of the invention can be used for a variety of domestic or industrial applications, for example, to reduce microbial or viral populations on a surface or object or in a body or stream of water. The compositions can be applied in a variety of areas, including kitchens, bathrooms, factories, hospitals, dental offices and food plants and can be applied to a variety of hard or soft surfaces having smooth, irregular or porous topography. Suitable hard surfaces include, for example, architectural surfaces (e.g., floors, walls, windows, manifolds, tables, counters and signs, eating utensils, hard surface medical or surgical instruments and devices, and hard surface packaging. Hard surfaces can be made from a variety of materials including, for example, ceramic, metal, glass, wood or hard plastic.The suitable soft surfaces include, for example paper, filter media, linen and hospital garments and Surgical instruments, soft-surface medical or surgical instruments and devices, and soft-surface packaging, said soft surfaces can be made from a variety of materials including, for example, paper, fiber, woven or non-woven fabric, soft plastics and elastomers The compositions of the invention can also be applied to soft surfaces such as food and skin (e.g. o) The compositions herein can be used as an environmental sanitizer or foam or non-foaming disinfectant. The antimicrobial compositions of the invention can be included in products such as sterilants, sanitizers, disinfectants, preservatives, deodorants, antiseptics, fungicides, germicides, sporocides, virucides, detergents, bleaches, hard surface cleaners, hand soaps, sanitary substances for hands without water, and sponges pre- or post-surgical. The antimicrobial compositions can also be used in veterinary products such as treatments for mammalian skin or in products for sanitizing or disinfecting animal enclosures, pens, irrigation stations, and veterinary treatment areas, such as inspection tables and operating rooms. .
The compositions herein can be employed in an antimicrobial footbath for livestock or people. The compositions herein may be employed to reduce the population of pathogenic microorganisms, such as pathogens from humans, animals, and the like. The compositions may exhibit activity against pathogens including fungi, molds, bacteria, spores and viruses, for example, S. aureus, E. coli, Streptococci, Legionella, Pseudomonas aeruginosa, mycobacteria, tuberculosis, phages., or similar. Such pathogens can cause a variety of diseases and disorders, including Mastitis or other diseases of milk production in mammals, tuberculosis and the like. The compositions of the present invention can reduce the population of microorganisms on the skin or other external surfaces or of the mucosa of an animal. In addition, the compositions herein can kill pathogenic microorganisms that are disseminated through transfer by water, air or a surface substrate. The composition only needs to be applied to the skin, other external surfaces or mucous of an animal, water, air or surface. Antimicrobial compositions can also be used in food and plant species to reduce microbial populations on the surface; they can be used in manufacturing or processing sites where such foods and plant species are handled; or they are used to treat processing waters around said sites. For example, the compositions can be used in food transport lines (e.g., as band sprays); Start and immersion trays for hand washing; food storage facilities; anti-dust air circulation systems; refrigeration equipment and cooler; beverage coolers and heaters, bleaches, cutting boards, third collector areas, and coolers or meat heater devices. The compositions of the invention can be used to treat production transport waters such as those found in pipeline transports, cutters, slicers, bleaches, retort systems, washing machines, and the like. The particular food products that can be treated with the compositions of the invention include eggs, meats, seeds, leaves, fruits and vegetables. The surfaces of particular plants include leaves, roots, seeds, skins or husks, stems, peduncles, tubers, bulbs, fruits, harvested or growing and the like. The compositions can also be used to treat carcasses of animals to reduce both pathogenic and non-pathogenic microbial levels. The composition herein is useful for cleaning or sanitizing containers, processing facilities, or equipment in the food service or food processing industries. The antimicrobial compositions have particular value for use in food and equipment packaging materials and especially for aseptic cold or hot packaging.
Examples of processing facilities where the composition of the invention can be employed include a line of dairy products, a continuous fermentation system, food processing lines such as pumpable food systems and beverage lines, etc. Food service stores can be disinfected with the composition of the Nvention For example, the compositions can also be used on or in fret washing machines, utensils, bottle washers, bottle coolers, heaters, three-collector washers, cutting areas (e.g., water blades, slicers, cutters and saws) and egg washers. Particular treatable surfaces include packages such as cartons, bottles, films and resins; dishes such as glasses, plates, utensils, pots and pans; utensils washing machines; exposed food preparation area surfaces such as collectors, countertops, tables, floors and walls; processing equipment such as tanks, vats, lines, pumps and hoses (for example, processing equipment for dairy products for the processing of milk, cheese, ice cream and other dairy products); and transportation vehicles. Containers include glass bottles, PVC or sacks of polyolefin film, cans, polyester, PEN or PET bottles of various volumes (100 ml to 2 liters, etc.), 3.78 liter milk containers, juice or milk containers of cartonboard, etc. The antimicrobial compositions can also be used on or in other industrial equipment and in other industrial process streams such as heaters, cooling towers, kettles, retort waters, rinse waters, aseptic packing wash waters, and the like. The compositions can be used to treat microbes and odors in recreational waters such as in swimming pools, spas, recreation creeks and waterfalls, fountains, and the like. A filter containing the composition can reduce the population of microorganisms in the air and liquids. This filter can remove pathogens that are carried in water and air, such as Legionella. The compositions herein can be used to reduce the population of microbes, fruit flies or other insect larvae in a drain or other surface. The composition can also be used by immersing the food processing equipment in the use solution, soaking the equipment for a sufficient time to clean the equipment, and cleaning or draining the excess solution from the equipment. The composition can also be used by spraying or cleaning the food processing surfaces with the use solution, keeping the surfaces moist for a sufficient time to clean the surfaces, and removing the excess solution by rubbing, vertically draining, vacuuming, etc. .
The composition of the invention can also be used in a method for cleaning hard surfaces, such as institutional-type equipment, utensils, dishes, health care equipment or tools, and other hard surfaces. The composition can also be used in the sanitation of articles of clothing or fabric that has been contaminated. The use solution is contacted with any of the contaminated surfaces or articles prior to use temperatures on the scale of approximately 4 ° C to 60 ° C, during an effective time to clean, disinfect or sterilize the surface or article. For example, the concentrate composition can be injected into the washing or rinsing water of a washing machine and contacted with the contaminated fabric for a sufficient time to clean the fabric. Afterwards, the excess solution can be removed by rinsing or centrifuging the fabric. The antimicrobial compositions can be applied to microbes or to dirty or clean surfaces using a variety of methods. These methods may operate on an object, surface, in a body or stream of water or a gas, or the like, by contacting the object, surface, body or stream with a composition of the invention. The contact may include any of the numerous methods for applying a composition, such as spraying the composition, immersing the object in the composition, treating the object with the composition with foam or gel, or a combination thereof.
A concentrate or use concentration of a composition of the present invention can be applied to or contacted with an object through any conventional method or apparatus for applying an antimicrobial or cleansing composition to an object. For example, the object can be cleaned with, sprayed with, foamed on, and / or immersed in the composition, or a use solution made from the composition. The composition can be sprayed, foamed, or rubbed on a surface; the composition can flow on the surface or the surface can be submerged in the composition. The contact can be manual or through a machine. The surfaces of food processing, food products, food processing or transport water, and the like can be treated with sterilized liquid, foam, gel, aerosol, gas, wax, solid, or powder compositions. according to the invention, or solutions containing these compositions. Additional methods employing the compositions herein can be found in the U.S. Patent Applications. Series No. entitled METHODS FOR WASHING POULTRY DURING PROCESSING WITH MÉDIUM CHAIN PEROXYCARBOXYLIC ACID COMPOSITIONS; Series No. entitled METHODS FOR WASHING CARCASSES, MEAT, OR MEAT PRODUCTS WITH MÉDIUM CHAIN PEROXYCARBOXYLIC ACID COMPOSITIONS; and Series No. entitled METHODS FOR WASHING AND PROCESSING FRUITS, VEGETABLES, AND OTHER PRODUCE WITH MÉDIUM CHAIN PEROXYCARBOXYLIC ACID COMPOSITIONS; each of which was presented on the same date as this one; each of which is incorporated herein by reference.
On-site cleaning Other hard surface cleaning applications for the antimicrobial compositions of the invention include on-site cleaning systems (CIP), off-site cleaning systems (COP), decontaminants for washing machines, sterilizers, textile washing machines, ultra and nano-filtration systems and internal air filters. The POP systems can include easily accessible systems including washing tanks, soaking vessels, buckets, holding tanks, milling collectors, vehicle parts washing machines, washing machines and intermittent non-continuous systems and the like. In general, the actual cleaning of the system at the site or other surface (ie, the removal of unwanted waste there) is achieved with a different material such as a formulated detergent, which is introduced with the hot water. After this cleaning step, the composition of the present could be applied or introduced into the system at a concentration of use solution in water at room temperature, not hot. The CIP typically employs flow rates in the range of about 40 to about 600 liters per minute, room temperatures up to about 70 ° C, and contact times of at least about 10 seconds, for example, about 30 to about 120 seconds. . The composition of the present may remain in solution in cold water (eg, 4 ° C) and hot water (eg, 60 ° C). Although it is usually not necessary to heat the aqueous use solution of the composition herein, under certain circumstances heating may be desirable to further enhance its antimicrobial activity. These materials are useful at any conceivable temperature. A method for sanitizing substantially fixed on-site processing facilities includes the following steps. The use solution of the invention is introduced into the processing facilities at a temperature in the range of about 4 ° C to 60 ° C. After the introduction of the use solution, the solution is kept in a container or circulated through the system for a sufficient time to sanitize the processing facilities (ie, to kill unwanted microorganisms). After the surfaces have been sanitized through the composition of the present, the use solution is drained. After finishing the sanitation step, the system can optionally be rinsed with other materials such as potable water. The composition can be circulated through the processing facilities for 10 minutes or less. The method hereof may include supplying the composition herein through air delivery to the cleaning surfaces at the site or other surfaces, such as those within pipes and tanks. This method of air supply can reduce the volume of solution required.
Contact of a Food Product with Medium Chain Peroxycarboxylic Acid Composition The method and system herein provide for contacting a food product with a medium chain composition using any suitable method or apparatus for applying said composition. For example, the method and system of the invention can contact the food product with a spray of the composition, by immersion in the composition, by treatment with foam or gel of the composition, or the like. Contact with a spray, a foam, a gel, or by immersion can be achieved through a variety of methods known to those skilled in the art to apply antimicrobial agents to foods. The contact of the food product can occur anywhere, where the food product can be found, such as the field, site or processing plant, vehicle, warehouse, storage restaurant or home. These same methods can also be adapted to apply the stabilized compositions of the invention to other objects. The methods of the present require a certain minimum contact time of the composition with the food product for the occurrence of a significant antimicrobial effect. The contact time may vary with the concentration of the composition of use, the method for applying the composition of use, the temperature of the composition of use, the amount of dirt on the food product, the number of microorganisms on the food product. , the type of antimicrobial agent, or the like. The exposure time can be at least about 5 to about 15 seconds. In one embodiment, the method for washing the food product employs pressure spraying including the composition. During the application of the spray solution on the food product, the surface of the food product can be moved with mechanical action, for example, stirred, carved, brushed, etc. The agitation can be through the physical carving of the food product, through the action of the spray solution under pressure, through sound application, or through other methods. The agitation increases the efficiency of the spray solution to kill micro-organisms, perhaps due to the better exposure of the solution in the cracks or small colonies that contain the micro-organisms. The spray solution, before application, can also be heated to a temperature of about 15 to 20 ° C, for example, of about 20 to 60 ° C to increase efficiency. The stabilized spray composition can be left on the food product for a sufficient time to conveniently reduce the population of microorganisms and, then, can be rinsed, drained or evaporated from the food product. Application of the material through spraying can be achieved using a manual spray wand application, an automatic sprinkling of the food product moving along a production line that uses multiple spray heads to ensure full contact, or other spray devices .
An automatic spray application involves the use of a spray booth. The spray booth substantially confines the sprayed composition within the booth. The production line moves the food product through the entrance to the spray booth where the food product is sprayed on all its exterior surfaces with sprays inside the booth. After a total material coverage and drainage of the material from the food product inside the cabin, the food product can then leave the cabin. The spray booth may include jets of steam that can be used to apply the stabilized compositions of the invention. These steam jets can be used in combination with cooling water to ensure that the treatment that is reaching the surface of the food product is less than 65 ° C, for example, less than 60 ° C. The spray temperature on the food product is important to ensure that the food product is not substantially altered (cooked) by the temperature of the spray. The spray pattern can be virtually any useful spray pattern. Immersion of a food product in a liquid stabilized composition can be achieved by any of a variety of methods known to those skilled in the art.
For example, the food product may be placed in a tank or bath containing the stabilized composition.
Alternatively, the food product may be transported or processed in a vent stack of the stabilized composition. The washing solution can be stirred to increase the efficiency of the solution and the speed at which the solution reduces the micro-organisms that accompany the food product. Agitation can be obtained through conventional methods, including ultrasonic, aeration through the bubbling of air through the solution, by mechanical methods, such as scrubbers, blades, brushes, pump-driven liquid jets, or through combinations of these methods. The washing solution can be heated to increase the efficiency of the solution to kill micro-organisms. After the food product has been submerged for a sufficient time for the desired antimicrobial effect, the food product can be removed from the bath or vent and the stabilized composition can be rinsed, drained or evaporated away from the food product. In another alternative embodiment of the present invention, the food product can be treated with a foam version of the composition. The foam can be prepared by mixing agents Foaming surfactants with the wash solution at the time of use. The foaming surfactants can be non-ionic, anionic or cationic nature. Examples of useful surfactant agent types include, but are not limited to the following: alcohol ethoxylates, alcohol ethoxylate carboxylate, amine oxides, alkyl sulphates, alkyl ether sulfate, sulfonates, quaternary ammonium compounds, alkyl sarcosines, betaines and alkyl amides. The surfactant foaming agent is typically mixed at the time of use with the washing solution. The levels of the use solution of the foaming agents are from about 50 ppm to about 2.0% by weight. At the time of use, compressed air can be injected into the mixture, then applied to the surface of the food product through a foam application device such as a tank foamer or a foamer mounted on a sucked wall. In another alternative embodiment of the present invention, the food product can be treated with a thickened or gel version of the composition. In the thick or gel state, the washing solution remains in contact with the surface of the food product for longer periods, thus increasing the antimicrobial efficacy. Thickened or gel solution will also adhere to vertical surfaces. The composition or washing solution can be thickened or gelled, using existing technologies such as: xanthan gum, polymeric thickeners, cellulose thickeners, or the like. Bar micelle-forming systems such as amine oxides and anionic counterions can also be used. Thickening agents or gel formers can be used either in the concentrated product or mixed with the washing solution, at the time of use. Typical usage levels of the thickening agents or gel vary from about 100 ppm to about 10% by weight.
Aseptic packing In the method of the present invention, aseptic packing includes contacting the container with a composition according to the present invention. Such contacting can be accomplished by using a spray device or a soaking or immersion tank or a container to intimately contact the interior of the container with the composition for a period of time sufficient to clean or reduce the microbial population in the container. The container is then emptied of the amount of the composition of the present one used. After emptying, the container can then be rinsed with potable water or sterilized water (which may include a rinse additive) and again emptied. After rinsing, the container can be filled with the liquid drink. The container is then sealed, capped or closed and then packed for shipment for final sale. The Figure shows a schematic view of one embodiment of a spraying / bottling operation of a bottle using a composition according to the present invention. The operation can be aseptic cold operation. The Figure shows a plant 100 that can contact beverage bottles with a medium chain peroxycarboxylic acid composition for a sanitizing regime. In the Figure, bottles 110 are passed through a sterilization tunnel 102. The sanitized bottles 110a then pass through a rinsing tunnel 103 and emerge as sanitized rinsed bottles 110b. In the process, "the bulk medium-chain peroxycarboxylic acid composition is added to a holding tank 101. Commonly, the materials are maintained at a temperature of about 22 ° C in tank 101. To obtain the effective use concentration of the medium chain peroxycarboxylic acid composition, formation water 105 is combined with the medium chain peroxycarboxylic acid composition concentrated in the tank 101. The medium chain peroxycarboxylic acid use composition is passed through a heater 108. to reach a temperature of about 45-50 ° C. The hot medium-chain peroxycarboxylic acid use composition is sprayed into the sterilization tunnel 102 within and on all surfaces of the bottle 110. Intimate contact between the acid composition medium chain peroxycarboxylic and bottle 110 is essential to reduce microbial populations to a level of sanitation.
After making contact with the use composition of chain peroxycarboxylic acid, and after discharging any excess of the composition of the bottles, the sanitized bottles 110 are then passed to a fresh water rinsing tunnel 103. Fresh water is provided 108 from a fresh water formation to a sprinkler rinse tunnel 103. Fresh water may include a rinse additive. The excess spray is drained from the rinse tunnel 103 the drain 106. Within the tunnel 103, the sanitized bottles 110a are thoroughly rinsed with fresh water. The complete removal of the medium chain peroxycarboxylic acid composition from the bottles 110a is important to maintain a high quality of the beverage product. The rinsed and sanitized bottles 110b are then removed from the rinse tunnel. The day tank 101, the sterilization tunnel 102 and the rinsing tunnel 103 are all respectively assigned to the wet scrubber or vent 111a, 111b or 111c to remove steam or fumes from the system components. The sanitary material that has been sprayed and drained from the bottles 110a accumulates at the bottom of the spray tunnel 102 and is then recirculated through the recirculation line and the heater 107 to the daily tank 101. The contact between The bottles and the medium chain peroxycarboxylic acid antimicrobial composition can be at a temperature greater than about 0 ° C, greater than about 25 ° C, or greater than about 50 ° C. Temperatures between approximately 40 ° C and 90 ° C can be used. In certain embodiments, a contact of 40 ° C to 60 ° C is employed for at least 5 seconds, for example, at least preferably about 10 seconds. In the cold aseptic filling of 453.6 grams of polyethylene terephthalate (PET bottle) or other containers of polymeric beverages, a process using a medium chain peroxycarboxylic acid composition was adopted. The medium chain peroxycarboxylic acid composition can be diluted to a use concentration of about 0.1 to about 10% by weight and maintained at an effective elevated temperature of about 25 ° C to about 70 ° C, for example about 40 ° C. C at approximately 60 ° C. Spraying or flooding the bottle with the material ensures contact between the bottle and the sanitary material for at least 5, for example, approximately 10 seconds. After completing the flood, the bottle can be drained of all contents for a minimum of 2 seconds and optionally followed by a 5 second rinse with sterile water using approximately 200 milliliters of water at 38 ° C. If optionally filled with rinse water, the bottle is then drained of the rinse with sterilized water for at least 2 seconds and immediately filled with the liquid drink. The rinse water may include a rinse additive. After completing the rinse, the bottles usually hold less than 10, preferably 3, milliliters of rinse water after draining. The present invention can be better understood by reference to the following examples. These examples are intended to be representative of the specific embodiments of the invention, and are not intended to limit the scope of the invention.
EXAMPLES Example 1 - - Compositions Including Medium Chain Peroxycarboxylic Acid and a Solubilizer Tables 1-5 present illustrative examples of the compositions herein, including medium chain peroxycarboxylic acid and a solubilizer. The amounts in the tables are in% by weight.
Table 1-Examples of compositions that include a Solvent-Solubilizer In each of the compositions A-Q: the medium chain peroxycarboxylic acid was peroxioctanoic acid; the medium chain carboxylic acid was octanoic acid; the vehicle was water; the oxidizing agent was hydrogen peroxide (supplied from a 35% solution); and the stabilizing agent was HEDP (supplied as Dequest 2010 which includes 60% by weight of HEDP). In each of the compositions A-L, O, P and Q: the acidulant was concentrated sulfuric acid. In compositions M and N, the acidulant was phosphoric acid (supplied as 85% and 75% phosphoric acid, respectively). The solubilizer was varied between these compositions. In compositions A and B, the solubilizer was polyethylene glycol 300. In compositions C, D and E, the solubilizer was monomethyl ether of polyethylene glycol (MPEG 550). In composition F, the solubilizer was nonionic surfactant, specifically Pluronic 17R4 a reverse triblock (PO) x (EO) and (PO) x copolymer with 40% EO and 60% PO. In composition G, the solubilizer was polyethylene glycol 300 plus LAS acid (98% linear dodecylbenzene sulphonic acid). In composition H, the solubilizer was polyethylene glycol 300 plus 1-octane sulfonate (supplied under the tradename of NAS-FAL as a 38% active). In composition I, the solubilizer was polyethylene glycol 300 plus Dowfax hydrophilic acid plus disulfonic acid of C6 alkylated diphenyl oxide). In composition J, the solubilizer was polyethylene glycol dimethyl ether (PolyDME250) and LAS acid. In composition K, the solubilizer was polyethylene glycol dimethyl ether (PolyDME250) and NAS-FAL. In composition L, the solubilizer was polyethylene glycol dimethyl ether (PolyDME250) and Dowfax Hydrotrope acid.
Table 2 - Examples of Compositions Including Solvent-Solubilizer and Surface-Solubilizing Agent ? Oí O Ül Oí Table 3 - Examples of Compositions Including Surfactant-Surfactant ro cn O n cp Table 4 - Examples of Compositions Including Anionic Surfactant and / or Microemulsion Solubilizer CD J ro in or in cn Table 4 - Continuation ? In the compositions M, N, O and P, the solubilizer was polyethylene glycol dimethyl ether (PolyDME250) and NAS-FAL. In composition Q, the solubilizer was polyethylene glycol dimethyl ether (PolyDME250) and NaS acid (supplied as 93% 1-octane sulfonic acid). These compositions were made from a composition that includes 5% by weight of medium chain carboxylic acid. In each of the R-Z compositions: the medium chain peroxycarboxylic acid was peroxyoctanoic acid; the medium chain carboxylic acid was octanoic acid; the vehicle was water; the oxidizing agent was hydrogen peroxide (supplied from a 35% solution); and the stabilizing agent was HEDP (supplied as Dequest, which includes 60% by weight of HEDP). In the compositions R and S, the acidulant was phosphoric acid (supplied as 75% phosphoric acid). In each of the compositions T, U, and V, the acidulant was reactive grade, 98%, concentrated sulfuric acid (15% by weight) and phosphoric acid (23% by weight) (supplied as 75% phosphoric acid) . In compositions W, X, Y, and Z, the acidulant was concentrated sulfuric acid (25% by weight) and phosphoric acid (14% by weight) (supplied as 75% phosphoric acid). E-I solubilizer was varied between these compositions. In composition R, the solubilizer was 1-octane sulfonate (1.9% by weight) and Tegotens CEE-11 (an ethoxylate of alcohol blocked at its end with butoxy, a surfactant agent of rapid wetting) (15% by weight). In the compositions S, T, and W the solubilizer was Tegotens EC-11. In the compositions U and Y, the solubilizer was Dehypon LS-54 (R (EO) 5 (PO), a surfactant agent of rapid wetting). In compositions V and Z, the solubilizer was Dehypon LT-104 (an alcohol ethoxylate blocked at its end with butyl). In composition X, the solubilizer was LF-221 (an alcohol ethoxylate blocked at its end with butoxy). In each of the AA-VV compositions: the medium chain peroxycarboxylic acid was peroxyoctanoic acid; the medium chain carboxylic acid was octanoic acid; the vehicle was water; the oxidizing agent was hydrogen peroxide (supplied as 35% hydrogen peroxide in water); and the stabilizing agent was HEDP (supplied as Dequest 2010, which includes 60% by weight of HEDP). In each of the compositions AA, AA-O, DD, EE, GG, KK, LL, MM, NN, PP, QQ, RR, SS, TT, UU, and VV the acidulant was phosphoric acid (supplied as phosphoric acid at 75%). In composition BB, HH the acidulant was concentrated sulfuric acid (reactive grade, 98%). In the CC composition, the acidulant was methane sulphonic acid (99.5% + Aldrich). In the FF composition, the acidulant was nitric acid (supplied as 70% nitric acid). In composition II, the acidulant was concentrated sulfuric acid (technical grade, 93%). In composition JJ, the acidulant was sulfuric acid (supplied as 50% sulfuric acid).
The solubilizer was varied between these compositions. In the compositions AA, AA-O, BB, CC, DD, FF, LL, HH, II and JJ, the solubilizer was 1-octane sulfonate. In compositions EE and GG, the solubilizer was 1-octane sulfonate (3.8% by weight) and Dehypon LS-54 (0.2% by weight). In the KK composition, the solubilizer was 1-octane sulfonate (NAS-FAL). In the MM composition, the solubilizer was 1-octane sulfonate (3.8% by weight) and Barlox 12 (dodecyldimethyl amine oxide, 30% active) (0.25% by weight). In the NN composition, the solubilizer was 1-octane sulfonate (3.8% by weight) and Barlox 12 (0.5% by weight). In the composition OO, the solubilizer was 1-octane sulfonate (3.8% by weight) and Barlox 12 (1% by weight). In the compositions PP, QQ, RR, and SS, the solubilizer was LAS acid. In the TT composition, the solubilizer was disodium cocoamfo dipropionate (supplied under the trade name liranol® FBS, which 39% solids). In the UU composition, the solubilizer was an aminoproprionate-betaine (supplied under the trade name Mirataine® JC-AH, which 42% solids). In composition VV, the solubilizer is EO carboxylic acid of 4 moles of C 12-13 alcohol (supplied under the trade name Neodox 23-4, which includes 90% active). The amounts of medium chain peroxycarboxylic acid were determined in the compositions PP, QQ, RR, and SS after 7.5 days at 60 ° C.
Table 5 - Examples of Compositions Including Agent Anionic Surfactant and / or Microemulsion Solubilizer plus a Organic Strong Acidulant In each of the compositions WW, XX, YY, ZZ, and BA: the medium chain peroxycarboxylic acid was peroxyoctanoic acid; the medium chain carboxylic acid was octanoic acid; the vehicle was water; the oxidizing agent was hydrogen peroxide (supplied as 35% hydrogen peroxide in water); the stabilizing agent was HEDP (supplied as Dequest 2010, which includes 60% by weight of HEDP); and the solubilizer was NAS-FAL. The acidulant was varied between these compositions. In the WW composition, the acidulant was hydroxyacetic acid (supplied as 75% hydroxyacetic acid) (19% by weight) and sulfuric acid (reactive grade, 98%) (5% by weight). In composition XX, the acidulant was hydroxyacetic acid (supplied as 75% hydroxyacetic acid) (19% by weight) and methane sulphonic acid (99.5% + Aldrich) (5% by weight). In composition YY, the acidulant was hydroxyacetic acid (supplied as 75% hydroxyacetic acid). In the ZZ composition, the acidulant was purified hydroxyacetic acid. In composition BA, the acidulant was hydroxypropionic acid (supplied as 3-hydroxypropionic acid 22%). In these compositions, the hydroxycarboxylic acids virtually contributed to no solubilization of the medium chain carboxylic acid. The compositions required a solubilizer.
Formation of Illustrative Compositions Table 6 shows the rapid generation of peroxyoctanoic acid achieved to make the KK composition.
Table 6 - Generation of Peroxioctanoic Acid with Time at Ambient Temperature and at 48.8 ° C (Composition KK) When a high level of sulfuric acid was used as the acidulant (Examples including B, E, O, and Q), a strong exotherm was obtained, and the medium chain peroxycarboxylic acid was generated rapidly, for example, virtually in instantaneous way For some of these compositions, the sulfuric acid needed to be added slowly and with cooling to keep the temperature below 76.6 ° C or below 48.8 ° C. Said formulas that can generate medium chain peroxycarboxylic acids, quickly or almost instantaneously, can be used for on-site generation at the location of use. Peroxyoctanoic acid concentrations reported in the examples herein were determined through a well-established and standardized titration protocol. First, the content of hydrogen peroxide was determined through an oxidation-reduction titration with ceric sulfate. After reaching the end point of this titration, an excess of potassium iodide was added to the solution. Potassium iodide reacts with peroxycarboxylic acids to release iodine. The released iodine was titrated with a standard sodium thiosulfate solution to produce the concentration of peroxycarboxylic acid. The remaining level of carboxylic acid can be calculated. The octanoic acid employed in the examples herein was obtained from sources including Procter & Gamble Chemicals and include a minimum of 95% octanoic acid with minor amounts of hexanoic acid (approximately 2%), decanoic acid (approximately 2%), and dodecanoic acid (< 0.5%).
Example 2 - - Stability of Compositions Including Middle Chain Peroxycarboxylic Acid and a Solubilizer The compositions according to the present invention were evaluated and demonstrated physical stability and advantageous stability of the medium chain peroxycarboxylic acid.
Materials and Methods Several of the medium chain peroxycarboxylic acid compositions of the present were evaluated for the stability of the medium chain peroxycarboxylic acid. A sealed container, including the composition, was placed in an oven to a elevated temperature or left at room temperature for a period of time. Temperatures and times are reported in the tables below. One week at 60 ° C can be considered equivalent to one year at room temperature (RT). The amount of peroxycarboxylic acid was determined by titration. Several of the medium chain peroxycarboxylic acid compositions herein were also evaluated for physical stability. The samples were visually inspected at intervals where the level of peroxycarboxylic acid was also determined.
Results The results obtained for stability determinations of medium chain peroxycarboxylic acid and physical stability are reported later in Tables 7 and 8.
The results presented in Table 7 for the compositions M and N, indicate that the stability of the medium chain peroxycarboxylic acid was reduced when the phosphoric acid was increased from 25% to 35%. This suggests that compositions that include a solvent-solubilizer are susceptible to degradation caused by impurities present in the technical grade phosphoric acid. The results presented in Table 8, specifically the appearance of Tyndall blue, indicate that each of these compositions was in the form of a microemulsion. An accelerated aging study of a mixed peroxycarboxylic acid composition demonstrated that the peroxyoctanoic acid in a mixed peracid composition underwent significant degradation at 60 ° C in 7 days. After 7 days, three samples experienced 20, 23, and 54% degradation. The microemulsion compositions were less susceptible to degradation by impurities. For example, compositions KK and LL included technical grade phosphoric acid and exhibited good stability. In contrast, if phosphoric acid is to be used in conventional peroxycarboxylic acid formulations, a high degree of purity is required to avoid unacceptable degradation. Compositions A, B, C, D, and E were two-phase compositions.
Table 7 - Advantageous Stability of Peroxycarboxylic Acid Medium Chain in the Compositions of the Present, Including a Solvent-Solubilizer Table 8 - Stability of Compositions Including Anionic Surfactant and / or Microemulsion Solubilizer Example 3 - - Viscosity Thickness of Cutting Effort of the Compositions Including Middle Chain Peroxycarboxylic Acid and Solubilizer The compositions according to the present invention were evaluated and demonstrated to have an advantageous shear thickening viscosity, which is characteristic of microemulsions.
Materials and methods Several of the medium chain peroxycarboxylic acid compositions of the present were evaluated for viscosity as a function of the spindle rotation speed using an LVT viscometer and an N2 spindle. The temperature of the compositions was room temperature (approximately 23.8 ° C).
Results The results obtained for the viscosity determinations of the compositions herein are reported below in Table 9. The viscosity reduction with increase in the screw rotation speed indicates shear thickening, which is characteristic of a microemulsion . Each of the tested compositions showed viscosity of shear thickening.
Table 9 - Thickness Viscosity of Cutting Effort of Composition LL Table 10 - Thickness Viscosity of Cutting Effort of Composition HH Table 11 - Thickness Viscosity of Cutting Effort of Composition KK Conclusions The shear thickening viscosity of the compositions herein is characteristic of a structured composition, such as a microemulsion.
Example 4 - Antimicrobial Efficacy of Present Compositions Including Middle Chain Peroxycarboxylic Acid and Solubilizer The compositions according to the present invention were evaluated and demonstrated advantageous antimicrobial activity against microbes such as gram negative bacteria, gram positive bacteria, fungi, spores, viruses and mycobacteria.
Materials and methods The antimicrobial activity was determined according to two well-established methods. The first method was the procedure established in Germicide! and Detergent Sanitizing Action of Disinfectants, Official Methods of Analysis of the Association of Official Analytical Chemists, paragraph 960.09 and applicable sections, 15th Edition, 1990 (EPA Guideline 91-2). The second method was the procedure described in A.O.A.C. Use Dilution Methods, Official Methods of Analysis of the Association of Official Analytical Chemists, paragraph 955.14 and applicable sections, 15th Edition, 1990 (EPA Guideline 91-2). In summary, the antimicrobial activity of the compositions herein was determined by exposing an aliquot of one ml containing the target microorganism to 99 ml of the desired concentration of the test substance at the desired temperature. After the specified contact time, one ml of the test solution containing the microorganism was neutralized and the survivors were enumerated. The hospital disinfecting efficacy of the compositions herein was determined by drying the target microorganism on a stainless steel vehicle and exposing the vehicle to 10 ml of the desired concentration of the test composition at the desired temperature for the specified contact time. Thereafter, the vehicle was transferred aseptically to a neutralizer / sub-culture medium. The antiviral activity against Herpes Simplex Virus Type 1 was determined by known procedures. In summary: Herpes Simplex Virus Type 1 was dried on a glass surface. The virus film was exposed to the test substance for 10 minutes at room temperature. Then, the film mixture and the test substance were subjected to gel filtration to separate small molecules from the virus particles. The recovered virus was analyzed for infectious ability through an accepted assay method. The antiviral activity against Polio Virus Type 1 was determined by known methods. In summary: the Type 1 Polio Virus was dried on a glass surface. The virus film was exposed to the test substance for 5 minutes at room temperature. Then, the film mixture and the test substance were subjected to gel filtration to separate small molecules from the virus particles. The recovered virus was analyzed for infectious ability through an accepted assay method.
Results Tables 12-21 include data showing that the medium chain peroxycarboxylic acid compositions of the present had antimicrobial activity when tested against bacteria, fungi and spores in several different types of tests. The data presented in Table 12 demonstrate that the compositions of the present exhibited significant antimicrobial activity when diluted with a diluent at a pH of less than 4. The efficacy was not as great if the composition was diluted and then the pH was brought to less than or equal to 4. These results illustrate that the compositions herein with important levels of acidulant exhibited, under certain circumstances, advantageous activity. The data presented in Table 13 demonstrate that the compositions herein exhibited significant antimicrobial activity at a pH of 2.6 to 3.5. These results indicate that at a pH of 6.1, 11 ppm of peroxyoctanoic acid (POOA) are still effective in reducing S. aureus by one > 7.04 log The data presented in Table 14 demonstrate that the efficacy of this composition was not as great against E. coli if diluted and, then, the pH was brought to less than 4. The data presented in Table 15 demonstrate that the compositions of the present exhibited an important antimicrobial activity. All tested formulas obtained reductions of > 5 log of Escherichia coli in 30 seconds at 0.069%, when diluted in 500 ppm of synthetic hard water Also, these compositions obtained a complete annihilation reduction of (> 7 log) of Pseudomonas aeruginosa in 30 seconds to 0.082% when diluted in 500 ppm of synthetic hard water The combination of higher pH and lower ppm in one composition may have contributed to the lower log reduction. The data presented in Table 16 demonstrate that the compositions herein exhibited significant antimicrobial activity against various fungi and bacteria. The compositions herein exhibited a broad spectrum antimicrobial activity against bacteria and fungi at low levels of medium chain peroxycarboxylic acid. These results indicate that the composition 106 is more effective than the composition DD. Composition BB achieved higher reductions of A. niger and P. aeruginosa at similar levels of peroxycarboxylic acid. The data presented in Table 17 demonstrate that the compositions herein exhibited an important antimicrobial activity against various fungi and several bacteria. The data presented in Table 18 demonstrate that one of the compositions of the present (KK) exhibited significant antimicrobial activity against E. Coli 0157: H7, S. typhimurium and L. monocytogenes. This composition achieved more than 99.999% reduction in an exposure time of 30 seconds. The data presented in Table 19 demonstrate that the compositions of the present exhibited significant antimicrobial activity against several bacteria in a hospital disinfectant test. The hospital disinfectant test measures whether the composition wiped out all the microbes in a stainless steel vehicle. A composition listed as 10/10 wiped out all the bacteria in each of the 10 vehicles. Likewise, a result of 60/60 indicates that a composition annihilated all the bacteria in each of the 60 vehicles. These results present a major challenge for an antimicrobial agent since it requires activity in the presence of 5% fetal bovine serum. Therefore, it indicates that the compositions herein were effective as a hospital disinfectant in the presence of blood stains.
The data presented in Table 20 demonstrate that one of the compositions herein exhibited superior antimicrobial activity against several bacteria in a hospital disinfectant test compared to a conventional commercially available antimicrobial agent. The hospital disinfectant test measures whether the composition wiped out all the microbes in a particular vehicle. The composition according to the present invention, A-O, passed the hospital disinfectant test, with complete annihilation in 59 of 60 vehicles. The conventional antimicrobial agent (containing hydrogen peroxide as active) did not pass the test. There was complete annihilation in only 58 of 60 vehicles. These results indicate that in the presence of fetal bovine serum and when diluted in synthetic hard water, the composition of the present was more effective than the commercially available hospital disinfectant. The data presented in Table 21 demonstrate that the compositions of the present exhibited significant antimicrobial activity against bacterial spores. Bacterial spores are difficult to annihilate. These results indicate that at elevated temperatures, the effectiveness of the compositions herein increased, which provides effective annihilation at reduced contact times.
The data presented in Table 22 demonstrate that the compositions herein exhibited superior antimicrobial activity against bacterial spores, compared to conventional peroxide and peroxycarboxylic acid antimicrobials. The composition of the present resulted in greater annihilation at equal or lower concentrations of the antimicrobial active.
These results indicate that the compositions herein exhibited superior antimicrobial activity compared to conventional antimicrobials. The data presented in Table 23 demonstrate that the compositions herein exhibited an antimicrobial activity effective against Mycobacterium bovis. The composition of the present (B) provided complete annihilation of M. bovis BCG at dilutions of 28.35 grams per 15.13 liters and 28.35 grams per 22.70 liters with exposure times as short as 6 minutes. These results indicate that the compositions of the present invention can be employed as a tuberculocidal agent. Tests against Herpes Simplex Virus Type 1 resulted in complete annihilation of this virus. The virus was dried on a hard surface. The virus on the hard surface was contacted for 10 minutes with composition B diluted at 28.35 grams per 22.70 liters or 28.35 grams per 30.27 liters. Both dilutions resulted in complete annihilation, a reduction greater than 5.3 log in the virus. Viruses and cells survived in appropriate controls. These results indicate that the compositions herein are effective virucides. Tests against Polio Virus Type 1 resulted in an almost complete annihilation of this virus. The virus was dried on a hard surface. The virus on the hard surface was contacted for 10 minutes with the LL composition diluted 28. 35 grams per 3.78 liters or 28.35 grams per 1.89 liters. Dilution from 28.35 grams to 3.78 liters completely killed the polio virus in 5 different titrations, did not kill any virus at the highest titration, and resulted in incomplete annihilation at the second and third highest titers. This dilution exhibited a 1.5 log reduction in virus titration. The dilution of 28.35 grams to 1.89 liters completely annihilated the polio virus to all the tested titrations. This dilution resulted in a reduction of > 4 log in the virus titration. Viruses and cells survived in appropriate controls. These results indicate that the compositions herein are general effective virucides. The data presented in Table 24 demonstrate that the compositions herein exhibited an antimicrobial activity superior to that of the compositions including synthetic medium chain peroxycarboxylic acid that had been added to a composition. A better efficiency was found in the solutions with the lowest pH, which were made with Milli-Q water. The 60 ppm sample almost achieved a 5 log reduction in 30 seconds. However, these data indicate that the pH of the test solution may be more important than the ppm of active POOA. The data presented in Table 25 demonstrate that the compositions herein exhibited an antimicrobial activity superior to that of the compositions including synthetic medium chain peroxycarboxylic acid that had been added to a composition. These data further suggest that POOA exhibited a higher activity against Escherichia coli, at a pH of -4.0 and at a concentration > 5 ppm no matter what diluent was used. Against Staphilous aureus POOA achieved reductions of 5 log at a concentration of 5 ppm and at a pH of -5. There was no difference between the reductions seen in Milli-Q water and soft water for any organism.
Table 12 - Antimicrobial Activity of Compositions that They include Solvent-Solubilizer Against E. coli and S. aureus with an Exposure to Ambient Temperature of 30 Seconds.
HW = 500 ppm synthetic hard water Table 13 - Antimicrobial Activity of Compositions Including Solvent-Solubilizer Against E. coli and S. aureus with Exposure Times at Ambient Temperature of 30 Seconds - Tests Conducted Using Synthetic Hard Water with pH A j u s t a d o Table 14 - Antimicrobial Activity of Compositions Including Solvent-Solubilizer Against E. coli and S. aureus with Exposure Times at Ambient Temperature of 30 Seconds - Tests Conducted with a pH Adjusting After Dosing 2 drops of 1.0 N HCl * 5 drops of 1.0 N HCl Table 15 - Antimicrobial Activity of Compositions that They include an Anionic and / or Solubilizing Surfactant Agent Microemulsion Against Pseudomonas aeruginosa and Escherichia coli with an Exposure to Ambient Temperature of 30 Seconds to a Composition Made with 500 ppm Synthetic Hard Water at a pH of 7.60 = The duplicate plate accounts were not consistent Table 16 - Antimicrobial Activity of Compositions Including an Anionic Surfactant and / or Solubilizer of Microemulsion Against Various Fungi and Pseudomonas aeruginosa with an Exposure to Ambient Temperature of 30 Seconds ro ro in o n o cn Table 17 - Antimicrobial Activity of Compositions Including Anionic Surfactant and / or Microemulsion Solubilizer Against Various Fungi and Several Bacteria with a 30 Seconds Exposure to Ambient Temperature s > he also annihilated a virulent strain of E co Table 18 - Antimicrobial Activity of the Composition that Includes an Anionic and / or Solubilizing Surfactant Agent Microemulsion Against Varies Bacteria at an Exposure to Ambient Temperature of 30 and 60 Seconds Table 19 - Antimicrobial Activity of the Composition that Includes an Anionic Surfactant and / or Solubilizer of Microemulsion Against Various Bacteria in a Hospital Disinfecting Test Table 20 - Antimicrobial Activity of the Composition that Includes an Anionic and / or Solubilizing Surfactant Agent Microemulsion and an Antimicrobial Composition Conventional Against Various Bacteria in a Test Hospital disinfectant Table 21 - Antimicrobial Activity of Compositions Including an Anionic Surfactant and / or Microemulsion Solubilizer Against Bacterial Spore Table 22 - Antimicrobial Activity of Compositions that They include an Anionic and / or Solubilizing Surfactant Agent Microemulsion and Conventional Compositions Against Bacterial spores Table 23 - Antimicrobial Activity of Compositions including Solvent-Solubilizer against Mycobacteria Table 24 - Antimicrobial Activity of Compositions that They include POOA of Crystals Pure to 60, 40 and 20 ppm in Water Milli-Q and Synthetic Hard Water Table 25 - Antimicrobial Activity of Compositions Including POOA of Pure Crystals in Milli-Q Water and Soft Water at Different pH Values against Two Bacteria with an Exposure Time at Ambient Temperature of 30 Seconds * Indicates a pH shift of -0.7 pH units during the hours in which the test was performed.
Example 5 - - Compositions Including Medium Chain Peroxycarboxylic Acid and a Solubilizer Table 26 presents additional illustrative examples of the present compositions including medium chain peroxycarboxylic acid and the solubilizer. The quantities in the tables are in% by weight (% / p). In each of the AB-AQ compositions: the medium chain peroxycarboxylic acid was peroxyoctanoic acid; the medium chain carboxylic acid was octanoic acid; the vehicle was water; the oxidizing agent was hydrogen peroxide (supplied from a 35% solution); the stabilizing agent was HEDP (supplied as Dequest 2010, which includes 60% by weight of HEDP); and the acidulant was phosphoric acid (supplied as 75% phosphoric acid). The AC composition included fragrance (1% by weight), specifically an apple mint fragrance. The solubilizer was varied between these compositions. In each of the compositions AB-DC, AH, Al, AN, the solubilizer was LAS acid. In compositions AE and AJ, the solubilizer was LAS acid plus n-octyl amine. In the AG composition, the solubilizer was LAS plus C8-dimethylamine. In the AF composition, the solubilizer was LAS acid plus C8-dimethylamine. In AK composition, the solubilizer was LAS acid plus alkylated diphenyl oxide disulfonate (acid form) In the AL composition, the solubilizer was alkylated diphenyl oxide disulfonate (acid form). In the AM composition, the solubilizer was LAS acid plus alkylated diphenyl oxide disulfonate (acid form) and C8 amine oxide In the AO composition, the solubilizer was sodium laureth sulfate, the suitable sodium laureth sulfates tested include those with n = 1 and 3. In the AP composition, the solubilizer was alkylated diphenyl oxide disulfonate (salt form) In the composition AQ, the solubilizer was alkylated diphenyl oxide disulfonate (salt form) plus NAS-FAL. AR-AW: the vehicle was water, the oxidizing agent was hydrogen peroxide (supplied from a 35% solution), the stabilizing agent was HEDP (supplied as Dequest 2010, which includes 60% by weight of HEDP), the acidulant was phosphoric acid (supplied as 75% phosphoric acid) and the solubilizer was LAS acid. The medium chain peroxycarboxylic acid and the medium chain carboxylic acid were varied between these compositions. In the AR composition, the medium chain peroxycarboxylic acid was peroxinonanoic acid and the medium chain carboxylic acid was nonanoic acid (straight chain nonanoic acid).
Table 26 - Examples of Compositions Including Agent Surfactant-surfactant (amounts in% / p) Table 26, continued - Examples of Compositions Including Surfactant-Surfactant Table 26, continued - Examples of Compositions Including Surfactant-Surfactant In the AS-AW compositions, the medium chain peroxycarboxylic acid was peroxioctanoic acid and peroxynonanoic acid and the medium chain carboxylic acid was octanoic acid and nonanoic acid; nonanoic acid (as isononanoic acid (which is believed to be a 6-carbon main chain with three pending methyl groups)) was present at 0.5, 1, 0.1, 0.2, and 0.3% by weight for AS-AW, respectively. In each of the compositions AX-AZ and BC-BF: the medium chain peroxycarboxylic acid was peroxyoctanoic acid; the medium chain carboxylic acid was octanoic acid; the vehicle was water; the oxidizing agent was hydrogen peroxide (supplied from a 35% solution); the stabilizing agent was HEDP (supplied as Dequest 2010, which includes 60% by weight of HEDP); and the acidulant was phosphoric acid (supplied as 75% phosphoric acid). The solubilizer was varied between these compositions. In the composition AX, the solubilizer was LAS acid plus sodium lauryl sulfate. In composition AY, the solubilizer was LAS acid plus lauryl sulfated sodium and C8 dimethylamine. In compositions AZ and BC-BF, the solubilizer was secondary alloy sulfonate (a mixture of sulfonated paraffins sold under the trade name Hostapur SAS). In each of the BG-BK compositions: the medium chain peroxycarboxylic acid was peroxyoctanoic acid; the medium chain carboxylic acid was octanoic acid; the vehicle was water; the oxidizing agent was hydrogen peroxide (supplied from a 35% solution); the stabilizing agent was HEDP (supplied as Dequest 2010, which includes 60% by weight of HEDP); the solubilizer was secondary alcansulfonate (a mixture of sulfonated paraffins sold under the trade name Hostapur SAS) plus NAS-FAL; and the acidulant was sulfuric acid. Compositions including LAS, secondary alkan sulfonate, alkylated diphenyl oxide disulfunate, or sodium lauryl sulfate as a solubilizer were foaming compositions. Specifically, compositions AB and CA are foaming compositions. Most of the compositions were of stable phase. In particular: The compositions AX and AY were determined as being of stable phase at 60 ° C. For example, several of the compositions for which the% by weight of medium chain peroxycarboxylic acid was not determined (nd) were not stable phase. That is, they separated in more than one phase after a predetermined time to one or more of (for example, at least one) 4.4 ° C, room temperature, 37.7 ° C, or 60 ° C. Peroxyoctanoic acid concentrations reported in the examples herein were determined through a well-established and standardized titration protocol. First, the content of hydrogen peroxide was determined through an oxidation-reduction titration with potassium permanganate. After reaching the end point of this titration, an excess of potassium iodide was added to the solution. Potassium iodide reacts with peroxycarboxylic acids to release iodine. The iodine released was fused with a standard solution of sodium thiosulfate to produce the concentration of peroxycarboxylic acid. The remaining level of carboxylic acid can be (and was). calculated. The peroxycarboxylic acid was fused at a time after the formulation was practiced in the laboratory. For example, the peroxycarboxylic acid was titrated for the compositions AB, AD, AE, AF, AG, AH, AK, AL, AO, AP, AQ, AU, AV, AZ, BC, and BD after the sample was saturated at room temperature for 0.2 (BD), or 3 (AP, AU and AV) days. For example, peroxycarboxylic acid was titrated for the CA and BG-BK compositions after the sample was saturated at 37.7 ° C for 4 days (CA) or 7 days (BG-BK). For example, the peroxycarboxylic acid was titrated for the compositions Al, AN, AR BE and BF after the sample was saturated at 60 ° C for 1 day (Al, AR, and BE) or 4 days (AN and BF). For the composition AB, no decomposition of the peroxycarboxylic acid was observed after aging the composition for 7 days at 60 ° C. For the CA composition, no decomposition of the peroxycarboxylic acid was observed after aging the composition for 34 days at 37.7 ° C. Other compositions were also observed and included stable peroxycarboxylic acid. The octanoic acid employed in the examples herein was obtained from sources, including Procter & amp;; Gamble Chemicals and includes a minimum of 95% octanoic acid with minor amounts of hexanoic acid (approximately 2%), decanoic acid (approximately 0.2%) and dodecanoic acid (< 0.5%).
Fragrance Certain of the compositions were evaluated for phase stability and for odor after the addition of a fragrance. In particular, compositions AB and AG were evaluated. The evaluated fragrances included Green Meadow (Klabin); Vinegar Mask I (J &E Sozio); Vinagar Mask II (J &E Sozio); amyl acetate; iso-bornyl acetate; and methyl salicylate. The CA composition included fragrance (1% by weight), specifically an apple-mint fragrance, which is believed to be or includes an alkyl salicylate. The CA composition was altered and included 10% by weight LAS and remained in the individual phase at 4.4 ° C, room temperature and 21.1 ° C Foaming The results in Table 27 show that the medium chain peroxycarboxylic acid composition of the present produced a foam with desirable qualities. This study used a "FOAM IT" tank skimmer set to produce slightly wet foam, 2 turns from the midpoint. The foam was dispensed from the use composition at 35-36.6 ° C. The foam that was sprayed on a vertical stainless steel surface (approximately 4.57 m by 4.57 m) from a distance of about 3048 mt. The results of Table 27 demonstrate that the compositions herein provided a foam with desirable hanging time and density. Each of the compositions tested at 28.35 g / 22.70 liters provided a foam with desirable characteristics, such as that the rupture foam was visible for about 5 min, the foam drained well from the vertical surface, exhibited good surface lamination vertical, and dried uniformly until there is no visible residue.
Example 6 - Antimicrobial efficacy of the compositions herein including medium chain peroxycarboxylic acid and solubilizer Additional compositions according to the present invention were evaluated and demonstrated the advantageous antimicrobial activity against microbes such as gram negative bacteria, gram positive bacteria, fungi , spores, viruses and mycobacteria.
Table 27 - foaming through the acid compositions Middle chain peroxycarboxylic of the present Materials and methods The antimicrobial activity was determined as described above in Example 4.
Results Tables 27-28 include data showing that the medium chain peroxycarboxylic acid compositions of the present had antimicrobial activity when tested against bacteria, fungi and spores in several different types of tests. The data presented in Table 28 demonstrate that the compositions herein exhibited significant antimicrobial activity. Table 1 included a 5 min exposure of the microbe to the AB composition at room temperature. The microbes in test 1 included E. aerogenes ATCC 13048 and aureus ATCC 6538. Test 2 included an exposure time of 30 sec of the microbe to composition AB at room temperature. The microbes in test 2 included S.auregenes ATCC 6538, £. coli ATCC 11229, and P. aeruginosa ATCC 13442. The data presented in Table 29 demonstrate the sporocidal activity of a composition according to the present invention. The Tests against Polio Type 1 resulted in a complete annihilation of this virus. The virus was dried on a hard surface. The virus on the hard surface was contacted for 10 min with the composition that AG diluted to 28.35 g by 3.784 It or 28.35 g by 1.89 It. The AG composition showed complete inactivation of the Polio virus type 1 after either 3 min or 5 min exposure at 20 ° C. The composition produced a reduction of > 6 and > 5.3 in 3 and 5 min, respectively. The virus and the cells survived in the appropriate controls. These results indicate that the compositions herein are general virucidal effective. Compositions that included a fragrance did not show any negative effect on the antimicrobial efficacy from the fragrance. Several additional compositions were tested for antimicrobial activity and exhibited results similar to those reported in this Example.
Table 28-Activity of the AB Composition against Various Microorganisms Table 29-KK Composition Activity against Spores of B. subtilis ATCC 49760 It should be noted that, as used in this specification and in the appended claims, the singular forms "a", "an" and "el, la, los, las," includes plural references unless the content clearly dictates otherwise. Thus, for example, reference to a composition containing "a compound" includes a mixture of two or more compounds. It should be noted that the term "or" is generally used in its sense including "and / or" unless the content clearly indicates otherwise. All publications and patent applications in this specification are indicative of the level of ordinary experience in the art to which this invention pertains. The invention has been described with reference to various specific and preferred modalities and techniques. However, it should be understood that many variations and modifications may be made as long as they remain within the spirit and scope of the invention.

Claims (140)

RECIPE D ICACIO NES
1. A composition comprising: from about 0.5 to about 5% by weight of peroxyoctanoic acid; from about 1 to about 10% by weight of octanoic acid; from about 5 to about 97% by weight of water; from about 1 to about 20% by weight of anionic surfactant; from about 5 to about 10% by weight of oxidizing agent; from about 15 to about 35% by weight of inorganic acid; and from about 1 to about 5% by weight of a sequestering agent; the composition forming a microemulsion.
The composition according to claim 1, comprising: from about 15 to about 80% by weight of water; and from about 3 to about 20% by weight of anionic surfactant.
3. The composition according to claim 2, comprising: from about 30 to about 70% by weight of water; from about 4 to about 20% by weight of anionic surfactant.
The composition according to claim 1, comprising at least about 2 parts by weight of peroxyoctanoic acid per 7 parts by weight of octanoic acid.
The composition according to claim 1, further comprising at least one short chain carboxylic acid and short chain peroxycarboxylic acid; the composition comprises at least about 1 part by weight of peroxyoctanoic acid per 8 parts by weight of short chain carboxylic acid, short chain peroxycarboxylic acid, or mixture thereof.
6. The composition according to claim 1, wherein the oxidizing agent comprises hydrogen peroxide.
The composition according to claim 1, wherein the inorganic acid comprises at least one sulfuric acid, phosphoric acid, methanesulfonic acid and the nitric acid.
The composition according to claim 1, wherein the sequestering agent comprises HEDP.
The composition according to claim 1, wherein after 1 week at 60 ° C, the concentration of the medium chain peroxycarboxylic acid is greater than about 80% of the level on the first day of storage.
10. A composition comprising: from about 0.005 to about 5% by weight of medium chain peroxycarboxylic acid; from about 0.001 to about 10% by weight of medium chain carboxylic acid; from about 0.001 to about 99.99% by weight of vehicle; and from about 0.001 to about 80% by weight effective solubilizer to solubilize the medium chain peroxycarboxylic acid and the medium chain carboxylic acid; the composition comprising about 2 or more parts by weight of medium chain peroxycarboxylic acid per 7 parts by weight of medium chain carboxylic acid; wherein the composition forms a microemulsion.
The composition according to claim 10, comprising: from about 0.5 to about 5% by weight of medium chain peroxycarboxylic acid; from about 1 to about 10% by weight of medium chain carboxylic acid; from about 1 to about 98% by weight of vehicle; and from about 1 to about 80% by weight of solubilizer; the solubilizer comprising at least one of polyalkylene oxide, polyalkylene oxide blocked at its end, alkoxylated surfactant, nonionic surfactant, anionic surfactant, amphoteric surfactant, cationic surfactant and zwitterionic surfactant.
The composition according to claim 11, wherein the solubilizer comprises at least one polyalkylene oxide, polyalkylene oxide blocked at its end, and nonionic surfactant; the composition comprising: from about 2 to about 60% by weight of vehicle; and from about 10 to about 70% by weight of solubilizer.
The composition according to claim 11, wherein the solubilizer comprises at least one of an anionic surfactant and amphoteric surfactant; the composition comprising: from about 30 to about 70% by weight of vehicle; and from about 2 to about 20% by weight of solubilizer.
The composition according to claim 10, comprising: from about 2 to about 500 ppm of medium chain peroxycarboxylic acid; from about 5 to about 2000 ppm of medium chain carboxylic acid; from about 95 to about 99.99% by weight of vehicle; and about 2 about 23,000 ppm of solubilizer.
15. The composition according to claim 10, comprising about 2 or more parts by weight of medium chain peroxycarboxylic acid per 4 parts by weight of medium chain carboxylic acid.
16. The composition according to claim 15, comprising about 2 parts by weight of medium chain peroxycarboxylic acid per 3 parts by weight of medium chain carboxylic acid.
17. The composition according to claim 10, wherein the medium chain peroxycarboxylic acid comprises at least one of peroxypentanoic acid, peroxyhexanoic acid, peroxyheptanoic acid, peroxyoctanoic acid, peroxynonoanic acid, peroxyoctanoic acid, peroxyundecanoic acid and peroxydodecanoic acid.
The composition according to claim 10, wherein the medium chain carboxylic acid comprises at least one of pentanoic acid, hexanoic acid, heptanoic acid, octanoic acid, nonanoic acid, decanoic acid, undecanoic acid and dodecanoic acid.
19. The composition according to claim 10, wherein the medium chain peroxycarboxylic acid comprises C6 to C12 peroxycarboxylic acid; and the medium chain carboxylic acid comprises C6 to C12 carboxylic acid.
The composition according to claim 19, wherein the medium chain peroxycarboxylic acid comprises at least one of peroxyhexanoic acid, peroxyheptanoic acid, peroxyoctanoic acid, peroxynanoanic acid, peroxyoctanoic acid, peroxyundecanoic acid and peroxydodecanoic acid.
The composition according to claim 19, wherein the medium chain carboxylic acid comprises at least one of hexanoic acid, heptanoic acid, octanoic acid, nonanoic acid, decanoic acid, undecanoic acid and dodecanoic acid.
22. The composition according to claim 10, wherein the medium chain peroxycarboxylic acid comprises C7 to C12 peroxycarboxylic acid; and the medium chain carboxylic acid comprises C7 to C12 carboxylic acid.
23. The composition according to claim 22, wherein the medium chain peroxycarboxylic acid comprises at least one of peroxyheptanoic acid, peroxyoctanoic acid, peroxynonoanic acid, peroxyoctanoic acid, peroxyundecanoic acid and peroxydodecanoic acid.
The composition according to claim 22, wherein the medium chain carboxylic acid comprises at least one of heptanoic acid, octanoic acid, nonanoic acid, decanoic acid, undecanoic acid and dodecanoic acid.
25. The composition according to claim 10, wherein the medium chain peroxycarboxylic acid comprises the C6 to C10 peroxycarboxylic acid; and the medium chain carboxylic acid comprises C6 to C10 carboxylic acid.
26. The composition according to claim 25, wherein the C6 to C10 peroxycarboxylic acid comprises at least one of peroxyhexanoic acid, peroxyheptanoic acid, peroxioctanoic acid, peroxynonoanic acid and peroxydecanoic acid.
The composition according to claim 25, wherein the C6 to C10 carboxylic acid comprises at least one of hexanoic acid, heptanoic acid, octanoic acid, nonanoic acid and decanoic acid.
The composition according to claim 10, wherein the medium chain peroxycarboxylic acid comprises at least one of peroxioctanoic acid and peroxyoctanoic acid; and the medium chain carboxylic acid comprises at least one of octanoic acid and decanoic acid.
29. The composition according to claim 10, wherein the medium chain peroxycarboxylic acid comprises at least one of peroxioctanoic acid and peroxyoctanoic acid.
30. The composition according to claim 10, wherein the medium chain carboxylic acid comprises at least one of octanoic acid and decanoic acid.
31. The composition according to claim 10, wherein the medium chain peroxycarboxylic acid comprises peroxyoctanoic acid.
32. The composition according to claim 10, wherein the medium chain carboxylic acid comprises octanoic acid.
The composition according to claim 10, wherein the solubilizer comprises at least one of polyalkylene oxide, blocked polyalkylene oxide at its end and nonionic surfactant.
34. The composition according to claim 33, wherein the solubilizer comprises at least one of polyethylene glycol, polyethylene glycol monomethyl ether, and polyethylene glycol dimethyl ether.
35. The composition according to claim 10, wherein the solubilizer comprises a nonionic surfactant.
36. The composition according to claim 35, wherein the nonionic surfactant comprises at least one of an alkoxylated surfactant and amine oxide surfactant.
37. The composition according to claim 36, wherein the alkoxylated surfactant comprises at least one of an EO / PO copolymer, EO / PO copolymer of the blocked at its end, alcohol alkoxylate, and alcohol alkoxylate blocked at its extreme.
38. The composition according to claim 10, wherein the solubilizer comprises an anionic surfactant.
39. The composition according to claim 38, wherein the anionic surfactant comprises at least one of alkyl sulfonate, alkyl benzene sulphonic acid, secondary alean sulfonate, alkylated diphenyl oxide disulfonate, and alkyl ether sulfate.
40. The composition according to claim 38, further comprising at least one nonionic surfactant and semi-polar nonionic surfactant.
41. The composition according to claim 10, wherein the solubilizer comprises at least one of anionic surfactant, cationic surfactant, amphoteric surfactant and zwitterionic surfactant.
42. The composition according to claim 10, further comprising at least one of short chain carboxylic acid and short chain peroxycarboxylic acid; the composition comprises about 1 or more parts by weight of medium chain peroxycarboxylic acid per 8 parts by weight of short chain carboxylic acid, short chain peroxycarboxylic acid, or a mixture thereof.
43. The composition according to claim 10, further comprising at least one of short chain carboxylic acid and short chain peroxycarboxylic acid; the composition comprises short chain carboxylic acid, short chain peroxycarboxylic acid, or a mixture thereof at an insufficient level to cause an objectionable odor.
44. The composition according to claim 10, wherein the composition is substantially free of at least one short chain carboxylic acid added and added short chain peroxycarboxylic acid.
45. The composition according to claim 10, further comprising at least one of oxidizing agent, inorganic acid, and stabilizing agent.
46. The composition according to claim 45, wherein the oxidizing agent comprises at least one of ozone, hydrogen peroxide, percarbonate, perborate, persulfate, perfosphate and persilicate.
47. The composition according to claim 45, wherein the acidulant comprises at least one of sulfuric acid, phosphoric acid, nitric acid, hydrochloric acid, methanesulfonic acid, ethanesulfonic acid, propanesulfonic acid, butansufonic acid, xylene sulfonic acid, and acid. Benzenesulfonic
48. The composition according to claim 45, wherein the stabilizing agent comprises at least one of phosphonic acid, polymeric polycarboxylate and aminocarboxylic acid.
49. The composition according to claim 45, further comprising at least one of antimicrobial solvent, additional antimicrobial agent, wetting agent, defoaming agent, thickener, foaming agent, solidifying agent, and aesthetic enhancing agent.
50. The composition according to claim 45, further comprising an oxidizing agent, the oxidizing agent comprising hydrogen peroxide.
51. The composition according to claim 45, comprising from about 2 to about 30% by weight of oxidizing agent.
52. The composition according to claim 45, comprising inorganic acid; the inorganic acid comprising at least one of sulfuric acid, nitric acid, phosphoric acid, and methanesulfonic acid.
53. The composition according to claim 45, comprising from about 1 to about 50% by weight of inorganic acid.
54. The composition according to claim 45, comprising a sequestering agent; the kiding agent comprising HEDP.
55. The composition according to claim 45, comprising from about 0.5 to about 50% by weight of stabilizing agent.
56. The composition according to claim 45, comprising: from about 2 to about 30% by weight of oxidizing agent; from about 1 to about 50% by weight of inorganic acid; and from about 0.5 to about 50% by weight of stabilizing agent.
57. The composition according to claim 10, comprising: from about 0.5 to about 4% by weight of medium chain peroxycarboxylic acid; from about 2 to about 6% by weight of medium chain carboxylic acid; from about 10 to about 80% by weight of vehicle; and from about 3 to about 65% by weight of solubilizer.
58. The composition according to claim 57, comprising: from about 1 to about 3% by weight of medium chain peroxycarboxylic acid; from about 2.5 to about 5% by weight of medium chain carboxylic acid; from about 20 to about 70% by weight of vehicle; and from about 5 to about 60% by weight of solubilizer.
59. The composition according to claim 12, wherein the composition comprises: from about 5 to about 50% by weight of carrier; and from about 10 to about 65% by weight of solubilizer.
60. The composition according to claim 59, wherein the composition comprises: from about 20 to about 40% by weight of carrier; and from about 20 to about 60% by weight of solubilizer.
61. The composition according to claim 13, wherein the composition comprises: from about 15 to about 70% by weight of carrier; and from about 3 to about 15% by weight of solubilizer.
62. The composition according to claim 61, wherein the composition comprises: from about 30 to about 75% by weight of carrier; and from about 4 to about 10% by weight of solubilizer.
63. The composition according to claim 10, wherein the composition has a pH of less than about 4.
64. The composition according to claim 10, further comprising organic acid with a pKa less than 4.
65. The composition according to claim 64, wherein the organic acid with a pKa of less than 4 comprises at least one of hydroxyacetic acid, hydroxypropanoic acid, and hydroxybutyric acid.
66. The composition according to claim 10, wherein after 1 week at 60 ° C, the concentration of medium chain peroxycarboxylic acid is greater than about 80% of the level on the first day of storage.
67. A composition comprising: from about 0.3 to about 7% by weight of medium chain peroxycarboxylic acid; from about 1 to about 10% by weight of medium chain carboxylic acid; from about 5 to about 97% by weight of vehicle; and from about 1 to about 25% by weight of microemulsion former; the composition forming a microemulsion.
68. The composition according to claim 67, wherein the microemulsion former comprises an anionic surfactant; the composition comprising: from about 15 to about 70% by weight of vehicle; and from about 3 to about 15% by weight of anionic surfactant.
69. The composition according to claim 68, comprising: from about 30 to about 75% by weight of carrier; and from about 4 to about 10% by weight of anionic surfactant.
70. The composition according to claim 67, wherein the composition exhibits a blue-tinged appearance and a shear thickening viscosity.
71. The composition according to claim 67, comprising about 2 or more parts by weight of medium chain peroxycarboxylic acid per 7 parts by weight of medium chain carboxylic acid.
72. The composition according to claim 71, comprising about 2 or more parts by weight of medium chain peroxycarboxylic acid per 4 parts by weight of medium chain carboxylic acid.
73. The composition according to claim 72, comprising about 2 parts by weight of medium chain peroxycarboxylic acid per 3 parts by weight of medium chain carboxylic acid.
74. The composition according to claim 67, wherein the medium chain peroxycarboxylic acid comprises at least one of peroxyhexanoic acid, peroxyheptanoic acid, peroxyoctanoic acid, peroxynonoanic acid, peroxyoctanoic acid, peroxyundecanoic acid, and peroxydodecanoic acid.
75. The composition according to claim 67, wherein the medium chain carboxylic acid comprises at least one of hexanoic acid, heptanoic acid, octanoic acid, nonanoic acid, decanoic acid, undecanoic acid and dodecanoic acid.
76. The composition according to claim 67, wherein the medium chain peroxycarboxylic acid comprises C7 to C12 peroxycarboxylic acid; and the medium chain carboxylic acid comprises C7 to C12 carboxylic acid.
77. The composition according to claim 76, wherein the medium chain peroxycarboxylic acid comprises at least one of peroxyheptanoic acid, peroxyoctanoic acid, peroxynonoanic acid, peroxyoctanoic acid, peroxyundecanoic acid, and peroxydodecanoic acid.
78. The composition according to claim 76, wherein the medium chain carboxylic acid comprises at least one of heptanoic acid, octanoic acid, nonanoic acid, decanoic acid, undecanoic acid, and dodecanoic acid.
79. The composition according to claim 67, wherein the medium chain peroxycarboxylic acid comprises C6 to C10 peroxycarboxylic acid; and the medium chain carboxylic acid comprises C6 to C10 carboxylic acid.
80. The composition according to claim 79, wherein the C6 to C10 peroxycarboxylic acid comprises at least one of peroxyhexanoic acid, peroxyheptanoic acid, peroxioctanoic acid, peroxynanoanic acid, and peroxydocanoic acid.
81. The composition according to claim 79, wherein the C6 to C10 carboxylic acid comprises at least one of hexanoic acid, heptanoic acid, octanoic acid, nonanoic acid, and decanoic acid.
82. The composition according to claim 67, wherein the medium chain peroxycarboxylic acid comprises at least one of peroxioctanoic acid and peroxydecanoic acid; and the medium chain carboxylic acid comprises at least one of octanoic acid and decanoic acid.
83. The composition according to claim 67, wherein the medium chain peroxycarboxylic acid comprises at least one of peroxioctanoic acid and peroxydecanoic acid.
84. The composition according to claim 67, wherein the medium chain carboxylic acid comprises at least one of octanoic acid and decanoic acid.
85. The composition according to claim 67, wherein the medium chain peroxycarboxylic acid comprises peroxioctanoic acid.
86. The composition according to claim 67, wherein the medium chain carboxylic acid comprises octanoic acid.
87. The composition according to claim 67, wherein the micro-emulsion-forming surfactant comprises at least one of anionic surfactant and amphoteric surfactant.
88. The composition according to claim 87, wherein the anionic surfactant comprises at least one of alkyl sulfonate, alkyl benzene sulphonic acid, secondary alloan sulfonate, alkylated diphenyl oxide disulfonate and alkyl ether sulfate.
89. The composition according to claim 87, further comprising at least one of nonionic surfactant and semi-polar nonionic surfactant.
90. The composition according to claim 67, wherein the microemulsion former comprises at least one of anionic surfactant, cationic surfactant, amphoteric surfactant, and zwitterionic surfactant.
91. The composition according to claim 67, further comprising at least one short chain carboxylic acid and the short chain peroxycarboxylic acid; the composition comprising about 1 or more parts by weight of medium chain peroxycarboxylic acid per 8 parts by weight of short chain carboxylic acid, short chain peroxycarboxylic acid, or a mixture thereof.
92. The composition according to claim 67, further comprising at least one short chain carboxylic acid and short chain peroxycarboxylic acid; the composition comprising at least one short chain carboxylic acid and a short chain peroxycarboxylic acid at an insufficient level to cause an objectionable odor.
93. The composition according to claim 67, wherein the composition is substantially free of at least one short chain carboxylic acid added and added short chain peroxycarboxylic acid.
94. The composition according to claim 67, further comprising at least one of oxidizing agent, inorganic acid, and stabilizing agent.
95. The composition according to claim 94, wherein the oxidizing agent comprises at least one of ozone, hydrogen peroxide, percarbonate, perborate, persulfate, perfosphate and persilicate.
96. The composition according to claim 94, wherein the acidulant comprises at least one of sulfuric acid, phosphoric acid, nitric acid, hydrochloric acid, methanesulfonic acid, ethanesulfonic acid, propanesulfonic acid, butanesulfonic acid, xylene sulfonic acid, and benzenesulfonic acid. .
97. The composition according to claim 94, wherein the stabilizing agent comprises at least one of phosphonic acid, polymeric polycarboxylate, and aminocarboxylic acid.
98. The composition according to claim 94, further comprising at least one of antimicrobial solvent, additional antimicrobial solvent, wetting agent, defoaming agent, thickener, foaming agent, solidifying agent and aesthetic improving agent.
99. The composition according to claim 94, comprising an oxidizing agent; the oxidizing agent comprising hydrogen peroxide.
100. The composition according to claim 94, comprising from about 2 to about 30% by weight of oxidizing agent.
101. the composition according to claim 94, comprising inorganic acid; the inorganic acid comprises at least one of sulfuric acid, phosphoric acid and methanesulfonic acid.
102. The composition according to claim 94, comprising from about 1 to about 50% by weight of inorganic acid.
103. The composition according to claim 94, comprising a sequestering agent; the kidnapping agent comprising HEDP.
104 the composition according to claim 94, comprising from about 1 to about 50% by weight of stabilizing agent.
105. The composition according to claim 94, comprising: from about 2 to about 30% by weight of oxidizing agent; from about 1 to about 50% by weight of inorganic acid; and from about 0.5 to about 50% by weight of stabilizing agent.
106. The composition according to claim 67, comprising: from about 15 to about 70% by weight of carrier; and from about 3 to about 15% by weight of solubilizer.
107. The composition according to claim 106, comprising: from about 30 to about 75% by weight of carrier; and from about 4 to about 10% by weight of solubilizer.
108. The composition according to claim 67, wherein the composition the pH has less than about 4.
109 the composition according to claim 67, further comprising organic acid with a pKa less than 4.
110. The composition of according to claim 67, wherein the organic acid with a pKa of less than 4 comprises at least one of hydroxyacetic acid, hydroxypropanoic acid and hydroxybutyric acid.
111. The composition according to claim 67, wherein after 1 week at 60 ° C the concentration of the medium chain peroxycarboxylic acid is greater than about 80% of the level on the first day of storage.
112. A method for making a medium chain peroxycarboxylic acid composition, the method comprises: combining: from about 1 to about 10% by weight of medium chain carboxylic acid; from about 5 to about 97% by weight of vehicle; from about 2 to about 30% by weight of oxidizing agent; and from about 1 to about 25% by weight of microemulsion former; form a microemulsion; and converting 20% or more of the medium chain carboxylic acid to medium chain peroxycarboxylic acid in about 24 hours or less.
113. The method according to claim 112, wherein the microemulsion former comprises at least one of anionic surfactant and amphoteric surfactant.
114. The method according to claim 112, which comprises converting about 25% or more of the medium chain carboxylic acid to medium chain peroxycarboxylic acid in about 24 hours or less.
115. The method according to claim 114, which comprises converting about 30% or more of the medium chain carboxylic acid to medium chain peroxycarboxylic acid in about 24 hours or less.
116. The method according to claim 115, which comprises converting about 35% or more of the medium chain carboxylic acid to medium chain peroxycarboxylic acid in about 24 hours or less.
117. The method according to claim 116, which comprises converting about 40% of the medium chain carboxylic acid to medium chain peroxycarboxylic acid in about 24 hours or less.
118. The method according to claim 112, further comprising adding to the mixture no more than about 2 parts by weight of short chain carboxylic acid, short chain peroxycarboxylic acid, or a mixture thereof, per part. by weight of medium chain carboxylic acid.
119. The method according to claim 112, wherein the mixing further comprises mixing inorganic acid, stabilizing agent, or a mixture thereof.
120. The method according to claim 112, wherein the medium-chain peroxycarboxylic acid comprises at least one of peroxyhexanoic acid, peroxyheptanoic acid, peroxioctanoic acid, peroxynanoanic acid, peroxydecanoic acid, peroxyundecanoic acid and peroxydecanoic acid.
121. The method according to claim 112, wherein the medium chain carboxylic acid comprises at least one of hexanoic acid, heptanoic acid, octanoic acid, nonanoic acid, decanoic acid, undecanoic acid and dodecanoic acid.
122. The method according to claim 112, wherein the medium chain peroxycarboxylic acid comprises C7 to C12 peroxycarboxylic acid; and the medium chain carboxylic acid comprises C7 to C12 carboxylic acid.
123. The method according to claim 122, wherein the medium chain peroxycarboxylic acid comprises at least one of peroxyheptanoic acid, peroxyoctanoic acid, peroxynonoanic acid, peroxioctanoic acid, peroxyundecanoic acid and peroxydodecanoic acid.
124. The method according to claim 122, wherein the medium chain carboxylic acid comprises at least one of heptanoic acid, octanoic acid, nonanoic acid, decanoic acid, undecanoic acid and dodecanoic acid.
125. The method according to claim 112, wherein the medium chain peroxycarboxylic acid comprises C8 to C10 peroxycarboxylic acid; and the medium chain carboxylic acid comprises C8 to C10 carboxylic acid.
126. The method according to claim 125, wherein the C8 to C10 peroxycarboxylic acid comprises at least one of peroxioctanoic acid, peroxinonanoic acid and peroxyoctanoic acid.
127. The method according to claim 125, wherein the C8 to C10 carboxylic acid comprises at least one of octanoic acid, nonanoic acid and decanoic acid.
128. The method according to claim 112, wherein the medium chain peroxycarboxylic acid comprises at least one of peroxioctanoic acid and peroxioctanoic acid; and the medium chain carboxylic acid comprises at least one of octanoic acid and decanoic acid.
129. The method according to claim 112, wherein the medium chain peroxycarboxylic acid comprises at least one of peroxioctanoic acid and peroxydecanoic acid.
130. The method according to claim 112, wherein the medium chain carboxylic acid comprises at least one of octanoic acid and decanoic acid.
131. The method according to claim 112, wherein the medium chain peroxycarboxylic acid comprises peroxyoctanoic acid.
132. The method according to claim 112, wherein the medium chain carboxylic acid comprises octanoic acid.
133. The method according to claim 112, wherein the anionic surfactant comprises normal alkyl sulfonate.
134. The method according to claim 112, wherein the microemulsion former comprises at least one of anionic surfactant, cationic surfactant, amphoteric surfactant and zwitterionic surfactant.
135. A method for reducing the population of microorganisms in an object, the method comprises: contacting the object with a medium chain peroxycarboxylic acid composition; the composition comprises: from about 2 to about 500 ppm of medium chain peroxycarboxylic acid; from about 5 to about 2,000 ppm of medium chain carboxylic acid; from about 95 to about 99.99% by weight of vehicle; and from about 2 to about 4,000 ppm of microemulsion former.
136. The method according to claim 135, wherein the object comprises at least one of food product, food processing surface, health care surface, plant product, body or stream of water, body or stream. of gas, surface of the hospital sector, surface of the industrial sector, agricultural surface and the veterinary surface.
137. The method according to claim 135, wherein the object comprises a hard surface.
138. The method according to claim 135, wherein the object comprises an air stream.
139. The method according to claim 135, wherein the object comprises at least one of elastomer, plastic, woven substrate, and non-woven substrate.
140. The method according to claim 135, wherein the contact comprises at least one of spraying the composition, immersing the object in the composition and treating the object with the composition with foam or gel.
MXPA/A/2006/007794A 2004-01-09 2006-07-06 Medium chain peroxycarboxylic acid compositions MXPA06007794A (en)

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US10754426 2004-01-09
US11030641 2005-01-04

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MXPA06007794A true MXPA06007794A (en) 2006-12-13

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