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
  • C11D3/43—Solvents
• • 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
  • C11D1/38—Cationic compounds
  • C11D1/65—Mixtures of anionic with cationic compounds
  • C11D1/655—Mixtures of sulfonated products with alkylolamides of carboxylic acids
• • 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
  • C11D17/0004—Non aqueous liquid compositions comprising insoluble particles

Definitions

• This invention relates to liquid detergents, and more particularly to a liquid light duty detergent composition complete with all the ingredients, including the minor components, having a high concentration of active materials, in the form of a viscous liquid, quickly dilutable in water, adapted for preparing liquid detergents ready to be used.
• Detergents and more particularly liquid detergents, are substantially formed by surfactants, either of anionic, non-ionic or amphoteric type, defined as active agents, and by various materials added to obtain particular effects, such as for example bleaching agents or builders in case of laundering products, or abrasive powders in case of bathroom or kitchen-cleaning products, and/or minor agents such as electrolytes, perfumes, anti-fermentation agents, dyes, and the like.
• surfactants either of anionic, non-ionic or amphoteric type, defined as active agents, and by various materials added to obtain particular effects, such as for example bleaching agents or builders in case of laundering products, or abrasive powders in case of bathroom or kitchen-cleaning products, and/or minor agents such as electrolytes, perfumes, anti-fermentation agents, dyes, and the like.
• anionic surfactants the most widely used is the straightchain alkylaryl sulfonate, in the form of sodium potassium, ammonium and alkanol ammonium salts (LAS Na, LAS K, LAS Tea), or combination of the above.
• alkylaryl sulfonates also sodium alkane--sulfonates (SAS Na), sulfonated -olefines, and sodium alkylethoxy sulfates (AES Na) of low ethoxylation type are frequently used.
• SAS Na sodium alkane--sulfonates
• AES Na sodium alkylethoxy sulfates
• non-ionic surfactants the most widely used are the ethylene oxide condensates with alkanolamides, or fatty alcohols, or fatty acids, or alkylphenols.
• amphoteric surfactants the betaine derivatives, imidazole derivatives, and amine oxides are widely used.
• Concentrated detergent compositions comprising a mixture of anionic, non-ionic and amphoteric surfactants, are known.
• composition of the above mentioned prior art patent so as to obtain: a) a concentrate containing about the 70% of active matter; b) by reducing the non-ionic surfactants content in the composition and c) by eliminating the free alkali in the composition so as to obtain a neutral pH value, as highly desiderable especially for a light duty and dishwashing detergent, a dissolving time of more than 60 minutes was obtained.
• the main obstacle in the formulation of such a product is the low water solubilization speed of almost all the most-commonly used surfactants when they are in a highly concentrated form, which is, obviously, the only possible form for the product according to this invention.
• the desired result is obtained of a quick and easy solubilization in water, lower than 3 minutes in many cases, by simple dilution with minimum stirring.
• polar solvents such as alcohols, glycols, glycol ethers, low molecular weight ketones
• the object of this invention is to provide a complete detergent, characterized at the same time by the following features:
• anionic surfactants have proved to be suitable, namely the straight-chain alkylarylsulfonates, particularly the salts of potassium and triethanolamine, the sodium alkansulfonates and sodium alkylethoxy sulfates (containing 2 to 3 moles of ethylene oxide).
• solvents light alcohols with number of carbon atoms 1 to 3, low molecular weight ketones such as acetone and methylethylketone, and some glycol ethers such as monomethyl-ether glycol ether and monoethyl-ether glycol ether may be used.
• the total active agents are formed, in addition to the anionic surfactant main constituents, also by non--ionic surfactants in smaller percentages, mainly as foam stabilizers and, due to their dispersing and fluidizing characteristics, in order to permit the admixture of minor additives, such as perfumes, into the composition without impairing the peculiar characteristics, particularly the high solubilization property of the composition.
• the invention advantageously uses the polycondensed alkylphenols with 4 to 9 moles of ethylene oxide, polycondensed straight alcohols (type C 9 - C 15 ) with 7 to 15 moles of ethylene oxide, and polycondensed alkanolamides of fatty acids (coconut type) with 1 to 5 moles of ethylene oxide.
• the concentrated composition can incorporate therein water-soluble polymeric materials, of the oxyethylene homopolymer type, having a molecular weight in the range 400,000 to 5,000,000 and marketed under the Trademark "Polyox" registered by Union Carbide, with concentrations of 1 to 5%.
• acids are neutralized, in the mixing and diluting step, by basic materials, such as alkaline hydrates, ammonium hydroxide, alkanolamines, admixtured into the concentrated composition for this purpose;
• basic materials such as alkaline hydrates, ammonium hydroxide, alkanolamines, admixtured into the concentrated composition for this purpose;
• alkanolamides of fatty acids length of chain C 10-22 ) added according to a ratio higher than 1:20 into the concentrated composition
• electrolytes particularly chlorides and sulfates of alkaline metals, alkaline-earth metals ammonium, added according to a ratio higher than 1:20 into the concentrated composition.
• the main surfactants used in these examples are usually marketed and available materials, indicated by the symbols generally used to designate them in the technical literature (for example, LAS, SAS, AES), followed by the respective concentration of active agent.
• Each formulation comprises the indication of the percentage composition, the contents of total active agent (anionic + non-ionic surfactants) and the solution time required to achieve the solubilization in water, at the ambient temperature, by simple manual shaking, to obtain diluted final solutions with 12% concentration of total active agent.
• a combination is reported here of a concentrated composition into which, in the dilution step, viscosity--enhancing materials are added.
• composition A In order to obtain a 12% diluted product of total active agent in the dilution step, .the composition A will be added with a viscosity-enhancing material in the form of a polyacrylic acid in water emulsion and sodium chloride in the following ratios:

Landscapes

• 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)
• Detergent Compositions (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (3)

Family

ID=11142541

Family Applications (1)

Country Status (6)

Cited By (13)

Family Cites Families (3)

• 1982
  • 1982-11-09 IT IT12659/82A patent/IT1164469B/it active
• 1983
  • 1983-11-07 AT AT83111093T patent/ATE28893T1/de not_active IP Right Cessation
  • 1983-11-07 EP EP83111093A patent/EP0109022B1/fr not_active Expired
  • 1983-11-07 DE DE8383111093T patent/DE3372986D1/de not_active Expired
  • 1983-11-08 ES ES527093A patent/ES8504241A1/es not_active Expired
  • 1983-11-09 EG EG692/83A patent/EG16154A/xx active

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