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
  • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
  • C11D1/66—Non-ionic compounds
  • C11D1/835—Mixtures of non-ionic with cationic compounds
• • 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
  • C11D3/0005—Other compounding ingredients characterised by their effect
  • C11D3/001—Softening compositions
  • C11D3/0015—Softening compositions liquid
• • 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
  • C11D1/52—Carboxylic amides, alkylolamides or imides or their condensation products with alkylene oxides
  • C11D1/523—Carboxylic alkylolamides, or dialkylolamides, or hydroxycarboxylic amides (R1-CO-NR2R3), where R1, R2 or R3 contain one hydroxy group per alkyl group
• • 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
  • C11D1/52—Carboxylic amides, alkylolamides or imides or their condensation products with alkylene oxides
  • C11D1/526—Carboxylic amides (R1-CO-NR2R3), where R1, R2 or R3 are polyalkoxylated
• • 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
  • C11D1/62—Quaternary ammonium compounds
• • 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
  • C11D1/72—Ethers of polyoxyalkylene glycols
• • 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
  • C11D1/74—Carboxylates or sulfonates esters of polyoxyalkylene glycols

Definitions

• This invention relates to an aqueous concentrated fabric softening composition, in particular to such a composition which contains more than 10% by weight of a water-insoluble cationic fabric softener.
• Concentrated fabric softening compositions containing more than 10% by weight of a water-insoluble cationic fabric softener suffer from the disadvantage of high viscosities which inter alia makes such products difficult to process. It has been proposed in European Patent Specification No EP-A-56695 (PROCTER & GAMBLE) that viscosity can be controlled by the use of small quantities, specifically up to 3% by weight of alkoxylated amines.
• an aqueous concentrated fabric softening composition comprising:
• the level of cationic softener in the composition is preferably from 10.5% to 21% by weight.
• the level of the nonionic material in the composition is preferably from 4-5% to 12.0% by weight.
• the weight ratio of the cationic softener to the nonionic material is preferably at least 1:1, such as between about 1.5:1 and about 3:1.
• the water-insoluble cationic fabric softener can be any fabric-substantive cationic compound which has a solubility in water at pH 2.5 and 20°C of less than 10 g/1.
• Highly preferred materials are quaternary ammonium salts having two C 12 -C 24 alkyl or alkenyl chains, optionally substituted or interrupted by functional groups such as -OH, -0-, -CONH, -COO-, etc.
• R 1 and R 2 represent hydrocarbyl groups from about 12 to about 24 carbon atoms
• R 3 and R 4 represent hydrocarbyl groups containing from 1 to about 4 carbon atoms
• X is an anion, preferably selected from halide, methyl sulfate and ethyl sulfate radicals.
• quaternary softeners include ditallow dimethyl ammonium chloride; ditallow dimethyl ammonium methyl sulfate; dihexadecyl dimethyl ammonium chloride; di(hydrogenated tallow alkyl) dimethyl ammonium chloride; dioctadecyl dimethyl ammonium chloride; dieicosyl dimethyl ammonium chloride; didocosyl dimethyl ammonium chloride; di(hydrogenated tallow) dimethyl ammonium methyl sulfate; dihexadecyl diethyl ammonium chloride; di(coconut alkyl) dimethyl ammonium chloride.
• Ditallow dimethyl ammonium chloride, di(hydrogenated tallow alkyl) dimethyl ammonium chloride, di(coconut alkyl) dimethyl ammonium chloride and di(coconut alkyl) dimethyl ammonium methosulfate are preferred.
• alkylimidazolinium salts believed to have the formula: wherein R 6 is an alkyl or hydroxyalkyl group containing from 1 to 4, preferably 1 or 2 carbon atoms, R 7 is an alkyl or alkenyl group containing from 8 to 25 carbon atoms, R 8 is an alkyl or alkenyl group containing from 8 to 25 carbon atoms, and R 9 is hydrogen or an alkyl containing from 1 to 4 carbon atoms and A is an anion, preferably a halide, methosulfate or ethosulfate.
• Preferred imidazolinium salts include 1-methyl-l-(tallowylamido-) ethyl -2-tallowyl- 4,5-dihydro imidazolinium methosulfate and 1-methyl-1-(palmitoylamido)ethyl -2-octadecyl-4,5- dihydro- imidazolinium chloride.
• Other useful imidazolinium materials are 2-hegtadecyl-1-methyl-1- (2-stearylamido)-ethyl-imidazolinium chloride and 2-lauryl-l-hydroxyethyl-1-oleyl-imidazolinium- chloride.
• Also suitable herein are the imidazolinium fabric softening components of US Patent No 4 127 489, incorporated by reference.
• Representative commercially available materials of the above classes are the quaternary ammonium compounds Arquad 2HT (ex AKZO); Noramium M2SH'(ex CEKA) ; Aliquat-2HT (Trade Mark of General Mills Inc) and the imidazolinium compounds Varisoft 475 (Trade Mark of Sherex Company, Columbus Ohio) and Rewoquat W7500 (Trade Mark of REWO).
• the nonionic material is, or includes, an alkylene oxide adduct of various fatty compounds as specified above, but may also include other alkoxylated or non- alkoxylated nonionic materials.
• Alkylene oxide adducts of fatty alcohols useful in the present invention preferably have the general formula: wherein R 10 is an alkyl or alkenyl group having at least 10 carbon atoms, most preferably from 10 to 22 carbon atoms, y is not more than 4.0, such as from about 0.5 to about 3.5 and n is 2 or 3.
• Examples of such materials include Synperonic A3 (ex ICI) which is a C 13 -C 15 alcohol with about three ethylene oxide groups per molecule and Empilan KB3 (ex Marchon) which is lauric alcohol 3EO.
• Alkylene oxide adducts of primary alcohols are preferred over those of secondary alcohols.
• Alkylene oxide adducts of fatty acids useful in the present invention preferably have the general formula wherein R10, and n are as given above and y is preferably not more than 4.0, such as from about 0.5 to about 3.5.
• Suitable examples include ESONAL 0334 (ex Diamond Shamrock) which is a tallow fatty acid with about 2.4 ethylene oxide groups per molecule.
• Alkylene oxide adducts of fatty esters useful in the present invention include adducts of mono-, di- or tri-esters of polyhydric alcohols containing 1 to 4 carbon atoms with not more than 4.0, such as from about 0.5 to about 3.5 alkylene oxide groups per molecule; such as coconut or tallow oil (triglyceride) 3EO (ex Stearine Dubois).
• Alkylene oxide adducts of fatty acid amides useful in the present invention preferably have the general formula wherein R 10 and n are as given above, and x and z in total are not more than 4.0, such as from about 0.5 to about 3.5, while one of x and z can be zero.
• examples of such materials include tallow monoethanolamide and diethanolamide, and the corresponding coconut and soya compounds.
• the viscosity of the product when measured at 110 sec -1 shear rate should be less than about 150 cP, preferably between about 20 and about 100 cP and the product can be added as such to a fabric rinse liquor or may be pre-diluted with water.
• compositions of the invention contain substantially no anionic material, in particular no anionic surface active materials: If such materials are present, the weight ratio of the cationic material to the anionic material should preferably be more than 10:1, such as more than 100:1.
• compositions may include electrolytes to assist in controlling the viscosity of the product.
• a suitable electrolyte level in the compositions is from about 0.01% to about 0.5%, most preferably from about 0.02% to about 0.2%, measured as the anhydrous salt.
• suitable materials include the ionic salts of sodium, potassium, lithium, magnesium, calcium or aluminium, such as lithium chloride, sodium chloride, ammonium chloride, sodium methosulphate, sodium benzoate, calcium chloride, magnesium chloride or aluminium chloride. Of these, sodium and potassium salts are less preferred.
• compositions may include low levels of solvents for the cationic fabric softener. Indeed, the cationic raw materials will often include isopropanol as a solvent. It is preferred that the level of isopropanol or any other C 1 -C 4 monohydric alcohol in the composition is less than about 10% by weight, most preferably less than about 5% by weight.
• composition can contain substances for maintaining the stability of the product on cold storage.
• substances for maintaining the stability of the product on cold storage include polyhydric alcohols such as ethylene glycol, propylene glycol, glycerol and polyethylene glycol.
• a suitable level for such materials is from about 0.5% to about 5%, preferably about 1.0% to 2.0% by weight.
• compositions of the invention may further include other additional ingredients including colourants, perfumes, preservations, anti-foams, optical brighteners, opacifiers, pH buffers (the preferrred pH for the compositions is between about 3 and about 8, such as from about 4 to about 6), further viscosity modifiers, non-cationic fabric conditioning agents, anti-shrinkage agents, anti-wrinkle agents, fabric crisping agents, spotting agents, soil-release agents, germicides, anti-oxidants and anti-corrosion agents.
• additional ingredients including colourants, perfumes, preservations, anti-foams, optical brighteners, opacifiers, pH buffers (the preferrred pH for the compositions is between about 3 and about 8, such as from about 4 to about 6), further viscosity modifiers, non-cationic fabric conditioning agents, anti-shrinkage agents, anti-wrinkle agents, fabric crisping agents, spotting agents, soil-release agents, germicides, anti-oxidants and anti-corrosion agents.
• compositions of the invention may be prepared by a variety of methods.
• One suitable method is to form a molten mixture of the cationic fabric softener and the nonionic material, add this molten mixture to water with stirring to form a dispersion and thereafter adding any optional ingredients.
• compositions were prepared according to the formulations in the following Tables.
• the compositions were prepared by forming a molten mixture of the cationic and nonionic ingredients at 65°C, adding to water at the same temperature, stirring to form a dispersion, adding electrolyte in the form of a saturated solution, cooling and then adding perfume.
• the compositions were made in batches of 100g. Stirring was continued for 7 minutes at 5oo rpm.

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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)
• Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
• Chemical Or Physical Treatment Of Fibers (AREA)

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Publications (2)

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Cited By (5)

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Citations (8)

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• 1984
  • 1984-04-19 GB GB848410322A patent/GB8410322D0/en active Pending
• 1985
  • 1985-04-15 AU AU41248/85A patent/AU561378B2/en not_active Ceased
  • 1985-04-15 CA CA000479166A patent/CA1232709A/en not_active Expired
  • 1985-04-16 JP JP8122185A patent/JPS60231866A/ja active Pending
  • 1985-04-17 ES ES542356A patent/ES8706196A1/es not_active Expired
  • 1985-04-17 GB GB08509804A patent/GB2157730B/en not_active Expired
  • 1985-04-17 EP EP85302713A patent/EP0159919A3/de not_active Ceased

Patent Citations (8)

Non-Patent Citations (1)

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