GB2425775A - Cosmetic composition - Google Patents

Abstract

A shampoo or body wash composition with improved optical clarity and reduced yellowing comprises an amino-functional silicone, at least one anionic detersive surfactant and water, whereby the amino-functional silicone has a structure selected from the group consisting of: <CHE>R<2>R2SiO(R2SiO)a(R<1>RSiO)bSiR2R<2></CHE> and <CHE>R<2>R2SiO(R2SiO)a(R<1>RSiO3/2)bSiR2R<2></CHE> wherein R is a monovalent hydrocarbon radical; R<1> is an aminoalkyl group of formula -R<3>NH2 or -R<3>NH-R4-NH2 wherein R<3> is a divalent hydrocarbon radical having at least 3 carbon atoms and R<4> is a divalent hydrocarbon radical having at least 2 carbon atoms; R<2> is selected from the group consisting of R, R<1>, OR and OH; a is 0-2000 and b is 1-200; characterised in that in at least 50% of all aminoalkyl groups R<3> is a straight or branched propylene radical. Preferred aminoalkyl groups are aminopropyl group, particularly -CH2CH2CH2NHCH2CH2NH2, CH2CH2CH2NH2, and -CH2CH(CH3)NHCH2CH2NH2. Preferred anionic surfactants include ammonium lauryl sulphate and ammonium laureth sulphate.

Description

COSMETIC COMPOSITION

1] This invention relates to shampoo or body wash compositions with the use of certain amino-functional silicone fluids. More specifically this invention relates to an optically clear and non-yellowing shampoo or body wash composition comprising a certain amino functional silicone fluid, at least one anionic detersive surfactant and water.

2] It is known from prior publications to make hair care compositions using silicones.

For example in U.S. Pat. No. 4,788,006 is disclosed a shampoo composition which comprises a synthetic, anionic surfactant, a dispersed, insoluble, non-volatile silicone, a xanthan gum suspending agent and water. Hair treating compositions containing amino- functional polysiloxanes have also been described.

3] In U.S. Patent 4,563,347 it is disclosed that an aqueous emulsion of aminoalkyl substituted polydimethylsiloxane is useful to condition hair because it facilitates combing and imparts a smooth feel to hair. The aminoalkyl substituents are credited with providing the copolymers with cationic sites that make the polymer more substantive to hair than nonsubstituted polydimethylsiloxane. This patent further teaches the use of amino-functional polydiorganosiloxane solutions and emulsions as conditioners. Other hair treating compositions containing amino functional polysiloxanes are described in U.S. Patents 4,586,518, 4,601,902, and 4,618,689.

4] The use of amino-functional silicones in compositions for shampooing or body wash is mostly aimed at imparting conditioning benefits to the hair or skin treated in this way.

There is still a need to provide shampoo or body wash compositions which provide superior conditioning properties while maintaining optical clarity and non-yellowing stability.

Shampoos or body washes using amino-functional silicones may be subject to product yellowing, which occurs when the amino-functional silicone oxidises. Such oxidation process may develop a bronze-yellow colour, the degree of yellowing being proportional to product aging. This has restricted usage of amino-functional silicones to opaque products where the colour change is not noticeable. The need exists to create formulations for clear products which do not undergo a colour change (yellowing).

5] It has now surprisingly been found that an optically clear shampoo or body wash composition can be provided with reduced yellowing which comprises a certain amino- functional silicone fluid. Accordingly the invention provides a shampoo or body wash composition comprising, an amino-functional silicone, at least one anionic detersive surfactant and water and preferably at least one foam boosting agent, at least one pH adjusting agent and at least one thickening agent, whereby the amino-functional silicone has a structure selected from the group consisting of R2 R2 SiO (R2 SiO)a (R1 R SiO)b SiR2 R2 and R2 R2 SiO (R2 SiO)a (R1 SiO3/2)b SiR2 R2 wherein R is a monovalent hydrocarbon radical, R1 is an aminoalkyl group having its formula selected from the group consisting of -R3 NH2 and -R3 NHR4 NH2 wherein R3 is a divalent hydrocarbon radical having at least 3 carbon atoms and R4 is a divalent hydrocarbon radical having at least 2 carbon atoms, R2 is selected from the group consisting of R, R1, -OR and - OH, a has a value of 0 to 2000 and b is a positive integer with a value up to 200, characterised in that in at least 50% of all aminoalkyl groups R3 is a propylene radical.

6] Within the amino-functional silicones for use in the invention, the monovalent R radicals are exemplified by alkyl radicals such as the methyl, ethyl, propyl, butyl, amyl, hexyl, dodecyl, tetradecyl and hexadecyl radicals, alkenyl radicals such as the vinyl, allyl, and hexenyl radicals, cycloalkyl radicals such as the cyclobutyl and cyclohexyl radicals, aryl radicals such as the phenyl and naphthyl radicals, aralkyl radicals such as the benzyl and 2- phenylethyl, alkaryl radicals such as the tolyl, and xylyl radicals, halohydrocarbon radicals such as 3-chloropropyl, 4-bromobutyl, 3,3, 3- trifluoropropyl, chiorocyclohexyl, bromophenyl, and chlorophenyl. It is preferred that R is a monovalent hydrocarbon radical having from 1 to 6 carbon atoms. Especially preferred R radicals are methyl, ethyl, tetradecyl, phenyl and vinyl and for the group -OR, R is most preferably alkyl. The group R3 is preferably an alkylene radical having from 3 to 20 carbon atoms. More preferably R3 is selected from the group consisting of propylene, -CH2 CHCH3 -, -(CH2)3-, butylene, -CH2 CH(CH3)CH2 -, pentamethylene, hexamethylene, 3-ethyl-hexamethylene, octamethylene, and decamethylene. The group R4 is preferably an alkylene radical having from 2 to 20 carbon atoms. Preferably R4 is selected from the group consisting of ethylene, propylene, -CH2 CHCH3 -, butylene, -CH2 CH(CH3)CH2 -, pentamethylene, hexamethylene, 3- ethyl- hexamethylene, octamethylene, and decamethylene. At least 50% of all R3 groups must be a propylene radical, which may be n-propylene or an isopropylene group.

7] It is highly preferred in this invention that R1 is selected from the group consisting of -CH CH2 CH2 NHCH2 CH2 NH2, -CH2 CH2 CH2 NH2 and -CH2 CH(CH3) NHCH2 CH2 NH2. Most preferred of these are the mono-amine groups such as -CH2 CH2 CH2 NH2 Salts of these same aminofunctional radicals may also be used in this invention. Examples of such salts include alkyl carboxylate salts, aryl carboxylate salts, halide salts such as chlorides and bromides, and other neutralisation products of the amines with organic acids.

Although the group R2 can be selected from the group consisting of R, R1, -OR and -OH, it is preferred for purposes of this invention that R2 is methyl, alkoxy or -OH. Especially preferred are the groups where R2 is ethoxy, propoxy or tetradecyloxy. It is preferred that the aminofunctional silicones are polyorganosiloxanes having from about 0.1 to 15 molar percent of the above described amino groups and most preferably from about 0.2 to 10 molar percent of the above described amino groups. In the above formulas, preferably a has a value of from 50 to 2000, and b has a value of I to 100.

8] The amino-functional polyorganosiloxanes useful in this invention can be prepared by procedures well known in the art. Many of these polyorganosiloxanes are available commercially. The amino-functional polyorganosiloxanes for use in the present invention may be prepared by condensation polymerisation from linear (hydroxyl end-blocked linear polydiorganosiloxanes) and one or more amino-functional silanes. The reaction may be catalysed by condensation catalysts, for example acid catalysts or barium catalysts. These polysiloxanes are preferably added in neat form and will be solubilised in the shampoo or body wash formulation.

9] The amino-functional silicones described above will be used as polysiloxane conditioning agents in conditioning shampoo compositions or body wash compositions according to the invention at levels from 0.2% to 10% by weight of the composition, more preferably from 0.3% to 8%, most preferably from 0.5% to 5%.

0] A composition according to the invention comprises as another essential component one or more surfactants which may be anionic, amphoteric, nonionic or a mixture thereof. The surfactants ensure the provision of an acceptable level of foam on the hair or body during the washing process and are capable of cleaning the hair and the skin.

Examples of anionic detersive surfactant which are suitable include any of the well-known anionic detersive surfactants typically used in shampoo or body wash formulations, and include alkali metal sulforicinates, sulfonated glyceryl esters of fatty acids such as sulfonated monoglycerides of coconut oil acids, salts of sulfonated monovalent alcohol esters such as sodium oleylisethianate, amides of amino sulfonic acids such as the sodium salt of oleyl methyl tauride, sulfonated products of fatty acids nitriles such as palmitonitrile sulfonate, sulfonated aromatic hydrocarbons such as sodium alpha-naphthalene monosulfonate, condensation products of naphthalene sulfonic acids with formaldehyde, sodium octahydroanthracene sulfonate, alkali metal alkyl sulfates such as sodium lauryl sulfate, ammonium lauryl sulfate or triethanol amine lauryl sulfate, ether sulfates having alkyl groups of 8 or more carbon atoms such as sodium lauryl ether sulfate, ammonium lauryl ether sulfate, sodium alkyl aryl ether sulfates, and ammonium alkyl aryl ether sulfates, alkylarylsulfonates having 1 or more alkyl groups of 8 or more carbon atoms, alkylbenzenesulfonic acid alkali metal salts exemplified by hexylbenzenesulfonjc acid sodium salt, octylbenzenesulfonic acid sodium salt, decylbenzenesulfonjc acid sodium salt, dodecylbenzenesulfonjc acid sodium salt, cetylbenzenesulfonjc acid sodium salt, and myristylbenzenesulfonic acid sodium salt, sulfuric esters of polyoxyethylene alkyl ether including CH3(CH2)6CH20(C2H40)2S03H, CH3(CH2)7CH20(C2H40)35S03H, CH3(CH2)8CH20(C2H40)8S03H, CH3(CH2)1 9CH20(C2H40)4S03H, and CH3(CH2)IOCH2O(C2H40)6S03H, sodium salts, potassium salts, and amine salts of alkylnaphthylsulfonjc acid.

1] Preferably the detersive surfactant is selected from the group consisting of sodium lauryl sulfate, ammonium lauryl sulfate, triethanolamine lauryl sulfate, sodium lauryl ether sulfate, and ammonium lauryl ether sulfate. The anionic detersive surfactant is present in the conditioning shampoo compositions of this invention in an amount from about 3 to 50 wt% and preferably about 5 to 25 wt% based on the total weight of the composition.

2] Yet other suitable anionic surfactants include sulfonated and sulfated alkyl, aralkyl, and alkaryl anionic detergents such as alkyl succinates, alkyl sulfosuccinates, and N-alkyl sarcosinates. Representative detergents are the sodium, magnesium, ammonium, and the mono-, di-, and triethanolamine salts of alkyl and aralkyl sulfates, as well as the salts of alkaryl sulfonates. The alkyl groups of the detergents should have a total of from twelve to twenty carbon atoms, and may be unsaturated. Fatty alkyl groups are preferred. The sulfates may be sulfate ethers containing one to ten ethylene oxide or propylene oxide units per molecule, with two to three ethylene oxide units.

3] Typical anionic detergents are sodium lauryl sulfate, sodium lauryl ether sulfate, ammonium lauryl sulfate, ammonium lauryl ether sulfate triethanolamine lauryl sulfate, sodium C14-16 olefin sulfonate, ammonium C12-15 pareth sulfate, sodium myristyl ether sulfate, ammonium lauryl ether sulfate, disodium monooleamidosulfosuccinate, ammonium lauryl sulfosuccinate, sodium dodecylbenzene sulfonate, triethanolamine dodecylbenzene sulfonate, and sodium N-lauryol sarcosinate. The most preferred anionic detergents suitable for this composition include sodium lauryl ether sulfate lEO, 2E0, and 3E0, ammonium lauryl sulfate and ammonium lauryl ether sulfate 1 EO, 2E0, and 3E0.

4] Examples of nonionic surfactants include polyoxyethylene alkyl ethers, polyoxyethylene alkylphenol ethers, polyoxyethylene lauryl ethers, polyoxyethylene sorbitan monoleates, polyoxyethylene alkyl esters, polyoxyethylene sorbitan alkyl esters, polyethylene glycol, polypropylene glycol, diethylene glycol, ethoxylated trimethylnonanols, and polyoxyalkylene glycol modified polysiloxane surfactants. Nonionic surfactants suitable for use in the hair treating compositions of the present invention can be fatty acid alkanolamides and amine oxide surfactants. Representative fatty acid alkanolamides include fatty acid diethanolamkjes such as isostearic acid diethanolamide, lauric acid diethanolamjde, capric acid diethanolamide, coconut fatty acid diethanolamide, linoleic acid diethanolamide, myristic acid diethanojamide, oleic acid diethanolamjde, and stearic acid diethanolamide. Suitable fatty acid monoethanolamides include coconut fatty acid monoethanolamide. Fatty acid monisopropanolamides which may be used are oleic acid monoisopropanojamjde and lauric acid monoisopropanolamide [0015] Amine oxide nonionic surfactants suitable for use in the present invention are N- alkyl amine oxides such as N-cocodimethylamine oxide, N-lauryl dimethylamine oxide, N- myristyl dimethylamine oxide, and N-stearyl dimethylamine oxide. Suitable N-acyl amine oxides are N-cocoamidopropyl dimethylamine oxide and Ntallowamidopropyl dimethylamine oxide. N-alkoxyalkyl amine oxides such as bis(2-hydroxyethyl) C12-15 alkoxy-propylamine oxide may also be employed. The hydrophobic portion of the amine oxide surfactant should be provided by a fatty hydrocarbon chain of about ten to twenty-one carbon atoms.

6] Examples of the amphoteric surfactants that can be used include amino acid surfactants and betaine acid surfactants. Among the various surfactants classified as amphoteric or ampholytic which may be used are cocoamphocarboxyglycinate, cocoamphocarboxypropionate, cocoamidopropylbetaine N-cocamidopropyldimethylglycjne,

and Other suitable

amphoteric detergents which may be used include betaines and sultaines. Betaines may have the formula R'R"R"'N(CH2)m COO- in which R' is an alkyl group having twelve to eighteen carbon atoms and mixtures thereof; R" and R" are lower alkyl groups of one to three carbon atoms; and m has a value of one to four. Specific compounds may include alpha(tetradecyldimethyIammofljo)acett beta-(hexadecyldiethylammonio) propjonate and gamma-(dodecyld imethylammonio)butyrate. Sultaines may have the formula R'R"R"N' (CH2)m S03 in which R', R", R", and m, are the same as defined above. Specific compounds may include 3-(dodecyldimethylammonio)propanelsulfonate and 3(tetradecyldimethylammonio)ethanel -sulfonate.

7] Preferred surfactants include trimethylnonyl polyethylene glycol ethers and polyethylene glycol ether alcohols containing linear alkyl groups having from 11 to 15 such as 2,6,8-trimethyl-4nonyloxypolyethylene oxyethanol (6 EO) (sold as Tergitol TMN-6 by OSi Specialties, A Witco Company, Endicott, NY), 2,6,8-trimethyl-4nonyloxypolyethylene oxyethanol (10 EO) (sold as Tergitol TMN-1o by OSi Specialties, AWitco Company, Endicott, NY), alkylene-oxypolyothylene oxyethanol (C1 1-15 secondary alkyl, 9 EO) (sold as Tergitol 1 5-S-9 by OSi Specialties, A Witco Company, Endicott, NY), alkylene- oxypolyethylene oxyethanol (C11...15 secondary alkyl, 15 EO) (sold as Tergitol 15-S-15 by OSi Specialties, A Witco Company, Endicott, NY), octyiphenoxy polyethoxy ethanols having varying amounts of ethylene oxide units such as octyiphenoxy polyethoxy ethanol (40 EO) (sold as Triton X405 by Rohm and Haas Company, Philadelphia, Pa.), nonionic ethoxylated tridecyl ethers available from Emery Industries, Mauldin, S.C. under the general tradename Trycol, alkali metal salts of dialkyl sulfosuccinates available from American Cyanamid Company, Wayne, N.J. under the general tradename Aerosol, polyethoxylated quaternary ammonium salts and ethylene oxide condensation products of the primary fatty amines, available from Armak Company, Chicago, Ill, under the tradenames Ethoquad, Ethomeen, or Arquad, and polyoxyalkylene glycol modified polysiloxanes. These preferred surfactants may also be obtained from other suppliers under different tradenames.

8] The surfactant component is used either as a detersive for the cleaning of the hair or skin, or as an emulsifier. It also aids the foaming profile in use. If used as an emulsifier, it will be selected carefully based on the compositions to be emulsified and the conditions of the composition, for example pH, concentration, desired particle size, sensitivity of the targeted public etc. This component may be used in amounts of from 0.5 to 80 percent by weight based on total composition, preferably from 2 to 50 parts by weight, more preferably to 40 parts by weight.

9] The shampoo and body wash compositions according to the invention also comprise water, preferably in an amount of from 10 to 80% by weight. The amount of water provided may be such that the composition is fairly concentrated, e.g. having only from 10 to 40% water by weight of the total composition. Alternatively, enough water may be provided to make a diluted version. A more concentrated version is preferred for stability reasons.

0] An optional, but preferred ingredient is a suspending agent. Such agents are known and are particularly beneficial in stabilising the viscosity of the shampoo. A suspending agent is to be used at concentrations effective for suspending the preferred silicone conditioning agent, or other water-insoluble material, in dispersed form in the shampoo or body wash compositions according to the invention. Such concentrations range from about 0.1% to about 10%, preferably from about 0.3% to about 5.0%, by weight of the conditioning shampoo compositions.

1] Suspending agents include crystalline suspending agents which can be categorized as acyl derivatives, long chain amine oxides, and mixtures thereof, concentrations of which range from about 0.1% to about 5.0%, preferably from about 0.5% to about 3.0%, by weight of the conditioning shampoo compositions. These suspending agents are described in U.S. Patent 4.741,855. These preferred suspending agents include ethylene glycol esters of fatty acids preferably having from about 16 to about 22 carbon atoms. Examples include polyacrylic acids, cross-linked polymers of acrylic acid, copolymers of acrylic acid with a hydrophobic monomer, copolymers of carboxylic acid-containing monomers and acrylic esters, cross-linked copolymers of acrylic acid and acrylate esters, heteropolysaccharide gums and crystalline long chain acyl derivatives. The long chain acyl derivative is desirably selected from ethylene glycol stearates, alkanolamides of fatty acids having from 16 to 22 carbon atoms and mixtures thereof. Polyacrylic acid is available commercially as Carbopol 420, Carbopol 488 or Carbopol 493. Polymers of acrylic acid cross-linked with a polyfunctional agent may also be used, they are available commercially as Carbopol 910, Carbopol 934, Carbopol 940, Carbopol 941 and Carbopol 980. An example of a suitable copolymer of a carboxylic acid containing a monomer and acrylic acid esters is Carbopol 1342. All Carbopol materials are available from Goodrich and Carbopol is a trade mark. A further suitable suspending agent is dihydrogenated tallow phthalic acid amide (available from Stepan Chemical Co. under the trademark Stepan TAB-2) (0022] More preferred suspending agents are the ethylene glycol stearates, both mono and distearate, but particularly the distearate containing less than about 7% of the mono stearate. Other suitable suspending agents include alkanol amides of fatty acids, preferably having from about 16 to about 22 carbon atoms, more preferably about 16 to 18 carbon atoms, preferred examples of which include stearic monoethanolamide, stearic diethanolamide, stearic monoisopropanolamide and stearic monoethanolamjde stearate.

Other long chain acyl derivatives include long chain esters of long chain fatty acids (e.g., stearyl stearate, cetyl palmitate, etc.); glyceryl esters (e.g., glyceryl distearate) and long chain esters of long chain alkanol amides (e.g., stearamide diethanolamide distearate, stearamide monoethanolamide stearate). Long chain acyl derivatives, ethylene glycol esters of long chain carboxylic acids, long chain amine oxides, and alkanol amides of long chain carboxylic acids in addition to the preferred materials listed above may be used as suspending agents. For example, it is contemplated that suspending agents with long chain hydrocarbyls having C8-C22 chains may be used. Other long chain acyl derivatives suitable for use as suspending agents include N,N- dihydrocarbyl amido benzoic acid and soluble salts thereof (e.g., Na, K), particularly N,N-di(hydrogenated) C16, C18 and tallow amido benzoic acid species of this family, which are commercially available from Stepan Company (Northfield, Illinois, USA). Examples of suitable long chain amine oxides for use as suspending agents include alkyl (C16-C22) dimethyl amine oxides, e.g., stearyl dimethyl amine oxide. Other suitable suspending agents include xanthan gum at concentrations ranging from about 0.3% to about 3%, preferably from about 0.4% to about 1.2%, by weight of the conditioning shampoo compositions. The use of xanthan gum as a suspending agent in silicone containing shampoo compositions is described, for example, in U.S. Patent 4,788,006, which description is incorporated herein by reference. Combinations of long chain acyl derivatives and xanthan gum may also be used as a suspending agent in the conditioning shampoo compositions. Such combinations are described in U.S. Patent 4,704,272, which description is incorporated herein by reference. Other suitable suspending agents include carboxyvinyl polymers.

3] Preferred among these polymers are the copolymers of acrylic acid crosslinked with polyallylsucrose as described in U.S. Patent 2,798,053, which description is incorporated herein by reference. Examples of these polymers include Carbopol 934, 940, 941, and 956, available from B. F. Goodrich Company. Other suitable suspending agents include primary amines having a fatty alkyl moiety having at least about 16 carbon atoms, examples of which include palmitamine or stearamine, and secondary amines having two fatty alkyl moieties each having at least about 12 carbon atoms, examples of which include dipalmitoylamine or di(hydrogenated tallow)amine. Still other suitable suspending agents include di(hydrogenated tallow)phthalic acid amide, and cross-linked maleic anhydride-methyl vinyl ether copolymer. Other suitable suspending agents may be used in the shampoo or body wash compositions, including those that can impart a gel-like viscosity to the composition, such as water soluble or colloidally water soluble polymers like cellulose ethers (e.g., methylcellulose, hydroxybutyl methylcellulose, hyroxypropylcellu lose, hydroxypropyl methylcellulose, hydroxyethyl ethylcellulose and hydroxyethylcellulose), guar gum, polyvinyl alcohol, polyvinyl pyrrolidone, hydroxypropyl guar gum, starch and starch derivatives, and other thickeners, viscosity modifiers, gelling agents, etc. [0024] Thickeners may also be used to facilitate the hand application of the composition to the hair, and are added in sufficient quantities to provide a more luxurious effect. Hair care compositions with viscosities in the range of six thousand to twelve thousand mm2/s measured at 25 C, are generally sufficient. Representative thickening agents which may be used are sodium alignate; gum arabic; guar gum; hydroxypropyl guar gum; cellulose derivatives such as methylcellulose, hydroxypropyl methylcellulose, hydroxyethylcellulose, and hydroxypropylcellulose starch and starch derivatives such as hydroxyethylamylose and starch amylose; locust bean gum; electrolytes such as sodium chloride and ammonium chloride; saccharides such as fructose and glucose; and derivatives of saccharides such as PEG-120 methyl glucose dioleate.

5] Other optional ingredients for conditioning shampoos according to the invention include fragrances, preservatives, vitamins, ceramides, amino-acid derivatives, liposomes, polyols, such as glycerine and propylene glycol and botanicals (plant extracts) and additional conditioning agents such as quaternary polymers or silicone materials. Other additives can include, depending on the use, glycols, vitamins A and E in their various forms, sunscreen agents, humectants, emollients, occlusive agents, and esters. Other optional components may be added to the conditioning shampoo compositions of this invention such as colorants, electrolytes, pH control agents, foam boosters and builders, foam stabilizers, antimicrobials, antioxidants, ultraviolet light absorbers, and medicaments. Such materials are generally known to the person skilled in the art, as is their method of incorporation and addition levels.

The optional ingredients can be present in an amount of up to 15 parts by weight per 100 parts by weight of conditioning shampoo compositions, but preferably up to 5 parts by weight, more preferably they are present in amount of from 0.1 to 1 part by weight per 100 parts by weight of conditioning shampoo composition. A preservative may be required and representative compounds which may be employed include formaldehyde, DMDM hydantoin, 5-bromo-5-nitro-1,3-dioxane, methyl paraben, propyl paraben, sorbic acid, diazolidinyl urea, and imidazolidinyl urea.

6] Additional conditioners may also be added to the composition in the form of organic cationic conditioning agents for the purpose of providing hair grooming. Such cationic conditioning agents may include quaternary nitrogen derivatives of cellulose ethers; homopolymers of dimethyldiallyl ammonium chloride; copolymers of acrylamide and dimethyldiallyl ammonium chloride; homopolymers or copolymers derived from acrylic acid or methacrylic acid which contain cationic nitrogen functional groups attached to the polymer by ester or amide linkages; polycondensation products of N,N'-bis-(2,3-epoxypropyl) piperazine or piperazine-bis-acrylamide and piperazine; and copolymers of vinylpyrrolidone and acrylic acid esters with quaternary nitrogen functionality. Specific materials include the various polyquats Polyquaternium-7, Polyquaternium-8, Polyquaternium- 10, Polyquaternium-1 1, and Polyquaternjum-23. The above cationic organic polymers and others are described in more details in US Pat. No. 4240450 which is hereby incorporated by reference to further describe the cationic organic polymers. Other categories of conditioners such as cationic surfactants such as cetyl trimethylammonium chloride, cetyl trimethylammonium bromide, and stearyltrimethylanimonjum chloride, may also be employed in the compositions as a cationic conditioning agent. Cationic surfactants useful in the compositions of the present invention may include those compounds which contain amino or quaternary ammonium hydrophilic moieties in the molecule which are positively charged, such as quaternary ammonium salts. Representative of the various quaternary ammonium salts which may be employed are ditallowdimethyl ammonium chloride, ditallowdimethyl ammoniuni methyl sulfate, dihexadecyl dimethyl ammonium chloride, di(hydrogenated tallow) dimethyl ammonium chloride, dioctadecyl dimethyl ammonium chloride, dieicosyl dimethyl ammonium chloride, didocosyl dimethyl ammonium chloride, di(hydrogenated tallow) dimethyl ammonjum acetate, dihexadecyl dimethyl ammonium acetate, ditallow dipropyl ammonium phosphate, ditallow dimethyl ammonium nitrate, di(coconutalkyl) dimethyl ammonium chloride, and stearyl dimethyl benzyl ammonium chloride.

7] The shampoo or body wash compositions may be prepared by simply mixing all ingredients together, and stirring them thoroughly. Heat may be applied to improve the dispersion of the ingredients. Alternatively the ingredients may be provided together with some in pre-emulsified form, and then merely mixed. This is the preferred way.

8] The shampoo or body wash compositions according to this invention may be in the form of a gel, paste or a freely pourable liquid. They can be used on the hair or skin of humans or animals to cleanse and improve the appearance e.g. of their coats. The compositions according to this invention are expected to be used by the usual method of adding the shampoo to the hair, massaging it into the hair and removing the shampoo from the hair by rinsing with water, this causing the conditioner to deposit on the hair or by applying the body wash composition to the skin, for example by rubbing it on, and rinsing it off. The compositions according to the present invention are used in a conventional manner for cleansing and conditioning hair or the cleansing of skin. An effective amount of the composition for cleansing and conditioning the hair is applied to hair that has preferably been wetted with water, and is later rinsed off after the washing of the hair. Such effective amounts generally range from about Ig to about 50g, preferably from about Ig to about 20g.

Application to the hair typically includes working the composition through the hair such that most or all of the hair is contacted with the composition. [0029] This method for cleansing and conditioning the hair comprises the

steps of: a) wetting the hair with water, b) applying an effective amount of the conditioning shampoo composition to the hair, c) shampooing the hair with the composition, and d) rinsing the shampoo composition from the hair using water to cause the conditioner to deposit on the hair. These steps can be repeated as many times as desired to achieve the desired cleansing and conditioning benefit.

EXAMPLE

0] An example of a hair conditioning shampoo is provided: Chemical Name Dosage (%)

A B C D E

Ammonium Lauryl Sulfate 8.0 8.0 8.0 8.0 8.0 Ammonium Laureth Sulfate 8.0 8.0 8.0 8.0 8.0 Cocamidopropyt Betaine 2.0 2.0 2.0 2.0 2.0 Polyquaternjum. .7 0.25 0.25 0.25 0.25 0.25 Silicone 0.0 0.0 1.0 1.5 2.0 Perfume o.o 0.5 0.5 0.5 0.5 Preservative q.s.

Anti-oxidant q.s.

Thickener q.s.

PH adjuster q.s.

Note: Dosage level is based on active material content The silicone was either one described above, or an alternative prior art one.

1] In order to evaluate the yellowing of the clear shampoo formulation, a number of formulations were prepared based on the five formulations as above. Two silicones were evaluated at three levels in order to detect colour change differences. The yellowness of the shampoo was evaluated at four levels, no change observed (1), very slight yellow observed (2), visible yellow (3), and yellow colour easily observed (4), the results are shown below.

Four temperatures were evaluated 4 C, room temp, and 40 C for a period of 2.5 months.

4 C RI 45 C ControlA 1 1 2 Control B 1 1 3 Composition C 1 1 3 Composition D 1 1 3 Composition E 1 1 3 PriorartC 1 2 4 PriorartD 1 2 4 PriorartE 1 2 4 Commercial shampoo 1 1 3 [0032] The use of the amino-functional silicone according to the invention, does not contribute appreciably to the yellowing of these clear shampoos.

Claims (10)

1. A shampoo or body wash composition comprising, an amino-functional silicone, at least one anionic detersive surfactant and water, whereby the amino-functional silicone has a structure selected from the group consisting of R2 R2 SiO (R2 SiO)a (R1 R SiO)b SiR2 R2 and R2 R2 SiO (R2 SiO)a (R1 SiO3/2)b SiR2 R2 wherein R is a monovalent hydrocarbon radical, R1 is an aminoalkyl group having its formula selected from the group consisting of -R3 NH2 and -R3 NHR4 NH2 wherein R3 is a divalent hydrocarbon radical having at least 3 carbon atoms and R4 is a divalent hydrocarbon radical having at least 2 carbon atoms, R2 is selected from the group consisting of R, R1, -OR and -OH, a has a value of 0 to 2000 and b is a positive integer with a value up to 200, characterjsed in that in at least 50% of all aminoalkyl groups R3 is a propylene radical.
2. 2. A shampoo or body wash composition according to Claim 1, wherein each R is independently a monovalent hydrocarbon atom having from 1 to 6 carbon atoms.
3. 3. A shampoo or body wash composition according to Claim 1 or 2, wherein the group R3 is an alkylene radical having from 3 to 20 carbon atoms.
4. 4. A shampoo or body wash composition according to any of the preceding claims, wherein R1 is selected from the group consisting of -CH2 CH2 CH2 NHCH2 CH2 NH2, -CH2 CH2 CH2 NH2 and -CH2 CH(CH3) NHCH2 CH2 NH2.
5. 5. A shampoo or body wash composition according to any of the preceding claims, wherein R1 is -CH2 CH2 CH2 NH2.
6. 6. A shampoo or body wash composition according to any of the preceding claims, wherein R2 is methyl, alkoxy or -OH.
7. 7. A shampoo or body wash composition according to any of the preceding claims, wherein the amino-functional silicone is a polyorganosiloxane having from about 0.1 to 15 molar percent amino groups, a has a value of from 50 to 2000, and b has a value of Ito 100.
8. 8. A shampoo or body wash composition according to any of the preceding claims, wherein the detersive surfactant is selected from the group consisting of sodium lauryl sulfate, ammonium lauryl sulfate, triethanolamine lauryl sulfate, sodium lauryl ether sulfate, and ammonium lauryl ether sulfate.
9. 9. A shampoo or body wash composition according to any of the preceding claims, wherein the anionic detersive surfactant is present in an amount from about 3 to 50 wt% based on the total weight of the composition.
10. 10. A shampoo or body wash composition according to any of the preceding claims, which also comprises a suspending agent, a thickener, fragrance, a preservative, vitamins, ceramides, amino-acid derivatives, liposomes, polyols, botanicals, additional conditioning agents, colorants, electrolytes, pH-control agents, foam boosters, foam builders, foam stabilizers, antimicrobials, antioxidants, ultraviolet light absorbers and/or medicaments.