Classifications

• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/16—Organic compounds
  • C11D3/38—Products with no well-defined composition, e.g. natural products
  • C11D3/386—Preparations containing enzymes, e.g. protease or amylase
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/02—Anionic compounds
  • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
  • C11D1/29—Sulfates of polyoxyalkylene ethers
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/66—Non-ionic compounds
  • C11D1/83—Mixtures of non-ionic with anionic compounds
  • C11D1/831—Mixtures of non-ionic with anionic compounds of sulfonates with ethers of polyoxyalkylenes without phosphates
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
  • C11D17/0047—Detergents in the form of bars or tablets
  • C11D17/0065—Solid detergents containing builders
  • C11D17/0073—Tablets
  • C11D17/0086—Laundry tablets
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
  • C11D17/04—Detergent materials or soaps characterised by their shape or physical properties combined with or containing other objects
  • C11D17/041—Compositions releasably affixed on a substrate or incorporated into a dispensing means
  • C11D17/042—Water soluble or water disintegrable containers or substrates containing cleaning compositions or additives for cleaning compositions
  • C11D17/044—Solid compositions
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/02—Inorganic compounds ; Elemental compounds
  • C11D3/04—Water-soluble compounds
  • C11D3/10—Carbonates ; Bicarbonates
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/02—Inorganic compounds ; Elemental compounds
  • C11D3/12—Water-insoluble compounds
  • C11D3/124—Silicon containing, e.g. silica, silex, quartz or glass beads
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/16—Organic compounds
  • C11D3/20—Organic compounds containing oxygen
  • C11D3/2075—Carboxylic acids-salts thereof
  • C11D3/2086—Hydroxy carboxylic acids-salts thereof
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/16—Organic compounds
  • C11D3/20—Organic compounds containing oxygen
  • C11D3/22—Carbohydrates or derivatives thereof
  • C11D3/222—Natural or synthetic polysaccharides, e.g. cellulose, starch, gum, alginic acid or cyclodextrin
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/16—Organic compounds
  • C11D3/38—Products with no well-defined composition, e.g. natural products
  • C11D3/386—Preparations containing enzymes, e.g. protease or amylase
  • C11D3/38609—Protease or amylase in solid compositions only
• • C—CHEMISTRY; METALLURGY
  • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
  • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
  • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
  • C11D3/16—Organic compounds
  • C11D3/38—Products with no well-defined composition, e.g. natural products
  • C11D3/386—Preparations containing enzymes, e.g. protease or amylase
  • C11D3/38645—Preparations containing enzymes, e.g. protease or amylase containing cellulase
• • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
  • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
  • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
  • Y02W30/00—Technologies for solid waste management
  • Y02W30/50—Reuse, recycling or recovery technologies
  • Y02W30/62—Plastics recycling; Rubber recycling

Definitions

• the application relates to stable, anhydrous laundry detergent concentrate formulations.
• the stable anhydrous laundry detergent concentrate formulations may be in a solid form such as a tablet, granulars, powder, sachet, or polymer membrane (PVA, PVP, HPMC, etc) form.
• a stable anhydrous laundry detergent concentrate formulation in a solid form comprising an acidic cleaner, a basic cleaner, a surfactant, and an enzyme, wherein the weight ratio of the enzyme to the surfactant is greater than 1 : 1, or wherein the formulation is polyvinyl alcohol, glycerol, or glycol free, or wherein the formulation is fatty acid free and/or animal fat free.
• the acidic cleanser is present in an amount of about 15-25 wt% based on the total weight of the formulation.
• the basic cleaner is present in an amount of about 40-50 wt% based on the total weight of the formulation.
• the surfactant is present in an amount of about 1-15 wt% based on the total weight of the formulation.
• the enzyme is present in an amount of about 9-25 wt% based on the total weight of the formulation.
• the acidic cleaner is selected from citric acid and malic acid.
• the acidic cleaner comprises citric acid
• the basic cleaner is selected from sodium carbonate, sodium bicarbonate and any other alkali carbonates and bicarbinates.
• the basic cleaner comprises sodium carbonate.
• the surfactant comprises an anionic surfactant.
• the surfactant comprises a non-ionic surfactant.
• the surfactant comprises an anionic and nonionic surfactant.
• the anionic surfactant is selected from sodium coco sulfate and sodium lauryl sulfate.
• the anionic surfactant comprises sodium coco sulfate.
• the non-ionic surfant is selected from ethoxylated alcohol and alkyl polyglucosides.
• the non-ionic surfactant comprises alcohols C12-C14 ethoxylated and lauryl and/or myristyl glucoside.
• the enzyme comprises a protease.
• the enzyme comprises subtilisin, amylase, mannanase, and pectate lyase.
• the enzyme comprises subtilisin, amylase, mannanase, pectate lyase, and cellulase.
• the formulation further comprises a disintegrant.
• the disintegrant is present in an amount of about 1-10 wt% based on the total weight of the formulation.
• the disintegrant comprises sodium starch glycolate.
• the disintegrant comprises sodium starch glycolate and microcrystalline cellulose.
• the formulation further comprises a flow aid.
• the flow aid comprises hydrated silica.
• the formulation further comprises a filler.
• the filler comprise sodium silicate.
• the formulation has a pH of about 7.0-9.0 when dissolving in appropriate amount of water.
• the formulation is in the form of a tablet.
• the tablet weighs about 6.2-6.8 g per tablet.
• a method of preparing a laundry detergent tablet comprises blending homogeneously the ingredients for the laundry detergent formulation disclosed herein to form a mixture and compressing the mixture to form the tablet.
• This disclosure relates to a stable, anhydrous laundry detergent concentrate formulation in a solid form.
• the inventors have discovered a solid formulation that is both good for the environment and effective for cleaning.
• the advantages of this anhydrous solid form over the traditional liquid cleansers include chemical stability, reduced packaging, and convenience for the consumer.
• the stable, anhydrous laundry detergent concentrate formulation can be in a tablet, granulars, powder, sachet, or polymer membrane (PVA, PVP, HPMC, etc) form.
• preservative booster includes a single kind of preservative booster or two or more different kinds of preservative booster.
• “About” as used herein means within an acceptable error range for the particular value as determined by one of ordinary skill in the art, which will depend in part on how the value is measured or determined, (i.e., the limitations of the measurement system). For example, “about” can mean within 1 or more than 1 standard deviations, per practice in the art. Where particular values are described in the application and claims, unless otherwise stated, the term “about” means within an acceptable error range for the particular value. The term “about” when qualifying a value of a stated item, number, percentage, or term refers to a range of plus or minus ten percent of the value of the stated item, percentage, parameter, or term.
• anhydrous refers to a stable, anhydrous laundry detergent concentrate formulation comprising less than about 10%, 9%, 8%, 7%, 6%, 5%, 4%, 3%, 2% or 1% by weight of water based on the weight of the concentrate formulation.
• substantially fatty acid-free refers to a stable, anhydrous laundry detergent concentrate formulation comprising less than 10%, 9%, 8%, 7%, 6%, 5%, 4%, 3%, 2%, or 1% by weight of a fatty acid (or salt thereof) based on the weight of the concentrate formulation.
• polyvinyl alcohol free refers to a stable, anhydrous laundry detergent concentrate formulation comprising less than 10%, 9%, 8%, 7%, 6%, 5%, 4%, 3%, 2%, or 1% by weight of polyvinyl alcohol, glycerol, glycol, fatty acid (or salt thereof), and animal fat (such as tallow) (or salt thereof), respectively, based on the weight of the concentrate formulation.
• water softening agent as used herein may be used interchangeably with chelating agent.
• chelating agent for example citric acid and ethylenediaminetetraacetic acid (EDTA) are examples of water softening agent.
• EDTA ethylenediaminetetraacetic acid
• ingredients may have multiple functions. However, when two or more ingredients defined based on their functions are included in a formulation disclosded herein, the ingredients differ from each other in terms of their chemical structure.
• citric acid can be a water softening agent and a acidic cleaner as well, but when both water softening agent and acidic cleaner are used in the description of the formulation, they intend to refer to different ingredients in terms of the chemical structure.
• the stable anhydrous laundry detergent concentrate formulation in a solid form can comprise an acidic cleaner, a basic cleaner, a surfactant, and an enzyme, wherein the weight ratio of the enzyme to the surfactant is greater than 1 : 1 , or wherein the formulation is polyvinyl alcohol, glycerol, or glycol free, or wherein the formulation is fatty acid free and/or animal fat free.
• the stable anhydrous laundry detergent concentrate formulation may further comprise a disintegrant.
• the stable anhydrous laundry detergent concentrate formulation may further comprise a flow aid.
• the stable anhydrous laundry detergent concentrate formulation may further comprise a filler.
• the laundry detergent concentrate formulation may further comprise a preservative and optionally a preservative booster.
• the laundry detergent concentrate formulation may further comprise a dye/colorant and optionally a fragrance.
• the amount of acidic cleaner in the formulation may range from about 15% to about 25% by weight based on the total weight of the formulation.
• the acidic cleaner may be citric acid and/or malic acid.
• the amount of the basic cleaner in the formulation may range from about 40% to about 50% by weight based on the total weight of the formulation.
• the basic cleaner may be sodium carbonate, sodium bicarbonate and/or any other alkali carbonates.
• the amount of surfactant in the formulation may range from about 1% to about 15% by weight based on the total weight of the formulation.
• the surfactant can be natural or synthetic surfactants, such an anionic, nonionic, amphoteric, zwitterioinic, or cationic surfactants, such as anionic and non-ionic surfactants, further such as a surfactant selected from sodium coco sulfate, ethoxy lated alcohols (such as ethoxy lated alcohol C( 10-12)-C( Id le) with 4-8 moles ethoxylation, for example Clariant Genapol LA 060 (ethoxy lated alcohol C12-C16) w/ 6 moles ethoxylation, ethoxylated alcohols C8-C10 6-8 moles of EO, etc.), sodium lauryl sulfate, and alkyl polyglucosides (such as lauryl glucoside, caprylyl / myristyl glucoside, cap
• the amount of enzyme in the formulation may range from about 9% to about 25% by weight based on the total weight of the formulation.
• the enzyme can include protease (e.g., subtilisin), amylase, mannanase, pectate lyase, and cellulase.
• the amount (e.g., weight) of enzyme is greater than the amount (e.g., weight) of surfactants present in the formulation. It would be desirable to have more enzymes than surfactants in the formulation because enzymes are biologically made and very easily biodegradable while surfactants take much longer tome to biodegrade. Enzymes also target each type of stain better than just with surfactant. By having high-level enzymes, the overall dose size can be decreased.
• the amount of the disintegrant in the formulation may range from about 1% to about 10% by weight based on the total weight of the formulation.
• the disintegrant can comprise sodium starch glycolate and/or microcrystalline cellulose.
• Other exemplary disintegrants include croscarmellose sodium, starch, pregelatinized starch, crospovidone, guar gum.
• the formulation disclosed hererin comprising a disintegrant, e.g., sodium starch glycolate and/or microcrystalline cellulose can dissolve more completely in cold water (40-60 °F) than a formulation that is otherwise identical but for containing no sodium starch glycolate and/or microcrystalline cellulose.
• the amount of the flow aid in the formulation is less than 1% by weigh based on the total weight of the formulation. For example, it may range from about 0.1% to about 0.7% by weight based on the total weight of the formulation.
• the flow aid can include hydrated silica, medium chain triglycerides with two or three fatty acids having an aliphatic tail of 6-12 carbon atoms. Hydrated silica can also function as a dessicating agent.
• the amount of the filler in the formulation may range from about 2% to 6% by weight based on the total weight of the formulation. Exemplary filler can be selected from dextrose, dextrin, starch, inulin, and sodium silicate.
• the pH of the formulation dissolved in appropriate amount of water may range from about 7.0 to about 9.0.
• the formulation may further comprise fragrance, which may be natural fragrances (e.g., essential oils) and/or synthetic fragrances and perfumes in the form of oils, crystals, powders, granules, and encapsulations.
• fragrance can be selected from fragrance clean basil.
• the formulation may further comprise dye or coloring agent, which can be any of the Food, Drug and Cosmetic (FD&C) approved dyes and colorants.
• dye or coloring agent can be any of the Food, Drug and Cosmetic (FD&C) approved dyes and colorants.
• the stable anhydrous laundry detergent formulation can be in the form of a tablet.
• the tablet can be in any size such that one tablet is sufficient to clean clothes per load.
• the tablet is in the range of about 6.2-6.8 g/tablet.
• the tablet can have a sufficient hardness and/or the tablet contains a desiccating agent such as hydrated silica or any other agent known to absorb moisture.
• the stable anhydrous laundry detergent tablets can be prepared using any suitable method.
• Stable anhydrous laundry detergent tablet can be prepared using direct compression or wet granulation process.
• direct compression is most preferred.
• the term direct compression (or direct compaction) is used to define the process by which tablets are compressed directly from powdered mixture of ingredients into a firm compact without employing the process of wet granulation. Powder is blended homogeneously by using a blender (Ribbon Blender, V-blender, paddle blender, drum mixing). The powder blender is then charged into the hopper of tablet press. Desire weight, compression ton, & hardness of tablet are set as the tablets get compressed and come out of the tablet press.
• the invention includes a method of using any of the tablets described herein including the steps of (1) placing the tablet in a container of a washing machine wherein the container is reserved for detergent and (2) turning on the power for the washing machine.
• the laundry detergent tablets may be stored in any suitable container, such as but not limited to plastic, glass, aluminum, ceramic, or acrylic container.
• the container may contain a desiccant.
• the container may be re-usable and refilled with new tablets as needed.
• a laundry detergent tablet was produced, using the following ingredients:
• Table 1 The pH of one tablet when dissolving in appropriate amount of water is 7.0-9.0.
• the tablet weighs 6.2-6.8 g/tablet.
• the cleaning performance of the laundry detergent formulation described herein are tested under cold water condition using industry recognized protocols (e.g., standard guide for evaluation stain removal performance in home laundering, standard practice for obtaining spectrometric data for object-color evaluation, and guidelines for anti-redeposition properties of laundry products), washing pre-stained stains and taking a reading before and after with spectrophotometer.
• industry recognized protocols e.g., standard guide for evaluation stain removal performance in home laundering, standard practice for obtaining spectrometric data for object-color evaluation, and guidelines for anti-redeposition properties of laundry products
• washing pre-stained stains and taking a reading before and after with spectrophotometer.
• the cleaning efficiency of the laundry detergent formulation described herein are satisfactory and comparable to other competitors in the market in terms of stain removal, color retaining, and/or soil redeposition.

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• Chemical & Material Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Engineering & Computer Science (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Wood Science & Technology (AREA)
• Organic Chemistry (AREA)
• Health & Medical Sciences (AREA)
• Inorganic Chemistry (AREA)
• Emergency Medicine (AREA)
• Molecular Biology (AREA)
• Detergent Compositions (AREA)

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• 2020
  • 2020-04-03 AU AU2020439415A patent/AU2020439415B2/en active Active
  • 2020-04-03 EP EP20722122.7A patent/EP4100500A1/de active Pending
  • 2020-04-03 WO PCT/US2020/026676 patent/WO2021201882A1/en not_active Ceased
  • 2020-04-03 CN CN202080098191.3A patent/CN115698248A/zh active Pending
  • 2020-04-03 KR KR1020227021838A patent/KR20220108108A/ko active Pending
  • 2020-04-03 CA CA3160403A patent/CA3160403A1/en active Pending
• 2024
  • 2024-10-11 AU AU2024227250A patent/AU2024227250A1/en active Pending

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