MXPA00007486A - Shampoo compositions - Google Patents

Abstract

The conditioning performance of small particle size emulsified silicone in a surfactant-based shampoo composition can be significantly boosted by the inclusion in the shampoo composition of an amino functionalised silicone. Accordingly, the invention provides an aqueous shampoo composition comprising, in addition to water:i) at least one surfactant chosen from anionic, nonionic, zwitterionic or amphoteric surfactants or mixtures thereof;ii) an amino functionalised silicone;and iii) emulsified particles of an insoluble, non-amino functionalised silicone, in which the average silicone particle size of the emulsified non-amino functional silicone in the shampoo composition is less than 2 microns.

Description

COMPOSITIONS OF SHAMPOO FIELD OF THE INVENTION This invention relates to shampoo compositions, and more particularly to shampoo compositions containing emulsified silicone particles, compositions that condition hair leaving it softer and more manageable.

BACKGROUND AND PREVIOUS TECHNIQUE The use of silicones as conditioning agents in cosmetic formulations is well known and is widely documented in the patent literature. In general, dispersed drops of silicone oil are dispersed in the composition, which is then applied to the hair to deposit the silicone material on the hair shaft. In WO 92/10162 a typical method of manufacturing silicone shampoos is described. Essentially, the silicone material is emulsified directly in the shampoo by a hot process in s i t u, in which the complete mixture of shampoo that incorporates the silicone is mixed Completely at elevated temperature, it is pumped through a high cut mill and then cooled. The silicone can be dispersed in a first process step with an anionic surfactant and fatty alcohol to form a premix. The pre-mix is then mixed with the remaining shampoo materials, pumped through a high cut mill, and cooled to obtain the final composition. A disadvantage associated with a hot process in s i t u as described in WO 92/10162 is that the factory handling of viscous silicone oil is difficult in the context of a complete shampoo manufacturing operation. A further disadvantage is that special equipment is normally needed to control the size of the silicone particles during manufacture. GB 2 170 216 A describes a similar process, in which the complete shampoo composition incorporating non-volatile insoluble silicone is sizaya with a high cut mixer until the silicone particles are of an average diameter of less than 2 microns. The particle size distribution is then said to be from about 2 to about 55 mieras In order to solve the aforementioned problems with the hot processing in s i t u of silicone, the alternative of incorporating the silicone as an aqueous, pre-formed emulsion has been proposed. This method has the consequences that silicon is incorporated with a pre-determinable, controllable particle size distribution. The silicone is insoluble and remains emulsified in the fully formulated shampoo composition, and thus the high-throughput processing step of the silicone within the fully formulated shampoo composition is not required. This also makes the manufacture of the compositions easier. A typical method for incorporating silicone, non-volatile, insoluble materials into a conditioning shampoo is disclosed in US 5,085,087 in which these materials are incorporated into the shampoo composition as a preformed aqueous emulsion of an average particle size of less than 2 microns All the ingredients are mixed in a cold, simple hot process in which the average particle size of the silicone material in the emulsion remains the same in the final composition of shampoo. Preferably, the size is from 0.01 to 1 miera, for example, 0.4 microns. EP 0,529,883 A1 discloses hair shampoo compositions made by an equivalent method comprising micro-emulsified silicone particles having a particle size of 0.15 microns or less, for example, 0.036 microns. The reduction of the silicone particle size even in this way is said to improve the stability, the optical properties and the conditioning performance. A problem encountered with these silicon formulations with a small particle size, is that the conditioning performance may be insufficient for most people, particularly in regions such as Japan and Southeast Asia where consumers want a high level of conditioning and a "heavy" feeling to your hair. It has now been found that the conditioning performance of the emulsified silicone of a small particle size in a shampoo composition based on surfactants can be significantly enhanced by the inclusion in the composition of a silicone shampoo with amino functional groups. US 5,198,209 (Am ay Corp) and EP 0 811 371 of L'Oreal describe conditioning shampoos with a cleaning surfactant and a combination of dimethicone and trimethylsilylamodimetone. The exemplified compositions use dimethicone fluid such as DC200 (60,000 cst). The dimethicone fluid is added directly to the shampoo as a pure silicone oil of an unspecified particle size of silicone.

BRIEF DESCRIPTION OF THE INVENTION The invention provides an aqueous shampoo composition comprising, in addition to water: i) at least one surfactant chosen from anionic, nonionic, zwitterionic, or amphoteric surfactants or a mixture thereof; ii) a silicone with amino functional groups; and iii) emulsified particles of a silicone with non-amino functional groups, insoluble, in which the average particle size of the silicone with non-amino functional groups, emulsified, in the shampoo composition is less than 2 microns.

DETAILED DESCRIPTION OF THE INVENTION Surfactant The composition according to the invention comprises a surfactant selected from anionic, nonionic, zwitterionic or amphoteric surfactants or mixtures thereof. Suitable anionic surfactants include alkyl sulfates, alkyl ether sulfates, alkaryl sulfonates, alkanoyl isethionates, alkyl succinates, alkyl sulfosuccinates, N-alkyl sarcosinates, alkyl phosphates, the alkyl ether phosphates, the alkyl ether carboxylates, and the alpha-olefin sulfonates, especially their sodium, magnesium, ammonium and mono-di- and triethanolamine salts. The alkyl and acyl groups generally contain from 8 to 18 carbon atoms and may be unsaturated. The alkyl ether sulfates, the alkyl ether phosphates and the Alkyl ether carboxylates may contain from 1 to 10 ethylene oxide or propylene oxide units per molecule, and preferably contain from 2 to 3 ethylene oxide units per molecule. Examples of suitable anionic surfactants include sodium oleyl succinate, ammonium lauryl sulfosuccinate, ammonium lauryl sulfate, sodium dodecylbenzene sulfonate, triethanolamine dodecylbenzenesulfonate, sodium cocoyl isethionate, lauroyl isethionate. of sodium, and sodium N-lauryl-sarcosinate. The most preferred anionic surfactants are sodium lauryl sulfate, triethanolamine lauryl sulfate, triethanolamine monolauryl phosphate, sodium lauryl ether sulfate 1EO, 2EO and 3EO, ammonium lauryl sulfate and lauryl ether sulfate. ammonium 1EO, 2EO and 3EO. Suitable nonionic surfactants for use in the compositions of the invention may include condensation products of straight or linear chain alcohols or phenols, primary or secondary, aliphatic (8 to 18 carbon atoms) with alkylene oxides, usually ethylene oxide and in general they have from 6 to 30 ethylene oxide groups. Other suitable nonionics include mono- or dialkyl alkanolamides. The example includes coconut mono- or di-ethanolamide and coconut mono-isopropanolamide. Amphoteric and zwitterionic surfactants suitable for use in the compositions of the invention may include alkyl amine oxides, alkyl betaines, alkyl amidopropyl betaines, alkyl sulphite sulfates, alkyl glycinates, alkyl carboxyglycinates, alkyl amphipropionates, alkylalanoglycinates, alkyl-amidopropyl hydroxysultaines, acryl taurates and acyl glutamates, wherein the alkyl and acyl groups have from 8 to 19 carbon atoms. Examples include lauryl amine oxide, cocodimet il-sulfopropyl betaine and preferably lauryl betaine, cocamidopropyl betaine and sodium cocacanopropionate. In general, surfactants are present in shampoo compositions of the invention in an amount of 0.1 to 50%, preferably 5 to 30%, more preferably 10% to 25% by weight.

Silicone with amino functional groups By "silicone with amino functional groups" is meant a silicone containing at least one primary, secondary or tertiary amine group, or a quaternary ammonium group. Examples include: (i) polysiloxanes having the designation CTFA "amodimethicone", and the general formula: HO- [Si (CH3) 2-0 -]? - [Si (OH) (CH2CH2CH2-NH-CH2CH2NH2) -0-] y-H wherein x and y are numbers depending on the molecular weight of the polymer, generally such that the molecular weight is between about 5,000 and 500,000. (ii) polysiloxanes having the formula in general: R'aG3-a-Si (OSiG2) n- (OSiGbR'2-b) m-0-SiG3-a-R ' wherein: G is selected from H, phenyl, OH and alkyl of 1 to 8 carbon atoms, for example, methyl; a is 0 or an integer from 1 to 3, preferably 0; b is 0 or 1, preferably 1; m and n are numbers such that (m + n) can vary from 1 to 2000, preferably from 50 to 150; m is a number from 1 to 2000, preferably from 1 to 10; n is a number from 0 to 1999, preferably from 49 to 149, and R 'is a monovalent radical of the formula -CqH2qL in which q is a number from 2 to 8 and L is an amino functional group or groups selected from the following: -NR "-CH2-CH2- (R") 2 -N (R ") 2 -N + H (R") 3A ~ -N + H (R ") 2 A" -N + H2 ( R ") 2 A" -N (R ") -CH2-CH2-N + H2 (R") A " in which R "is selected from H, phenyl, benzyl or a monovalent, saturated hydrocarbon radical, for example, alkyl of 1 to carbon atoms and A is a halide ion, for example, chloride or bromide. Silicones with suitable amino functional groups corresponding to the above formula include those polysiloxanes called "trimethylsilylamodimetone" as shown below, and which are sufficiently insoluble in water to be useful in the compositions of the invention.

Si (CH3) 3-0- [Si (CH3) 2-0-] x- [Si (CH3) (R-NH-CH2CH2NH2) 0-] and-Si (CH3) 3 where x + y is from a number from about 50 to about 500, and wherein R is an alkylene group having from 2 to 5 carbon atoms. Preferably, the number x + y are in the range from about 100 to about 300. (iii) Quaternary silicone polymers having the general formula: . { (R1) (R2) (R3) N + CH2CH (OH) CH20 (CH2) 3 [Si (R4) (R5) -0-] n Si (R6) (R7) - (CH2) 3-0-CH2CH ( OH) CH2N + (R8) (R9) (R10)} (X-) 2 wherein R1 and R10 may be the same or different and may be independently selected from H, long chain or short chain, saturated or unsaturated, alkyl (en) yl, branched chain alkyl (en) yl and cyclic rings of 5 to 8 carbon atoms; R2 to R9 may be the same or different and may be independently selected from H, straight or branched chain lower alkyl (en) yl and cyclic ring systems of 5 to 8 carbon atoms; n is a number from the range of about 60 to about 120, preferably about 80, and X "is preferably acetate, but instead may be for example halide, organic carboxylate, organic sulfonate or the like. quaternary, suitable of this class are described in EP-A-0, 530, 974. Silicones with amino functional groups are suitable for use in the invention will typically have a mol% amine functionality in the range from about 0.1 until about 8.0 mol%, preferably from about 0.1 to about 5.0 mol%, more preferably from about 0.1 to about 2.0 mol%. In general, the amine concentration should not exceed about 8.0 mol% since it has been found that too high a concentration of amine can be detrimental to the total deposit of silicone and therefore to the conditioning performance. The viscosity of the silicone with amino functional groups is not particularly critical and can vary suitably from about 100 to about 500, 000 cst. Specific examples of silicones with amino functional groups suitable for use in the invention are the amino silicone oils DC2-8220, DC2-8166, DC2-8466, and DC2-8950-114 (all ex-Dow Corning), and GE 1149-75 (Silicones of ex General Electric). Also suitable are silicone oil emulsions with amino functional groups with a nonionic and / or cationic surfactant. Properly, these emulsions pre formed will have a silicone particle size with amino functional groups, average, in the shampoo composition of less than 30, preferably less than 20, more preferably less than 10 microns. It has been found that the reduction in particle size generally improves conditioning performance. More preferably, the average particle size of silicone with amino functional groups is less than 2 microns, ideally it varies from 0.01 to 1 micron. Silicone emulsions having an average silicon particle size of < 0.15 micras are generally called micro-emulsions. The particle size can be measured by means of a laser light diffraction technique, using a 2600D Particle Size Meter from Malvern Instruments. Pre-formed silicone emulsions with amino functional groups are available from silicone oil suppliers such as Dow Corning and General Electric. Specific examples include DC929 Cationic Emulsion, DC939 Cationic Emulsion, DC949 Cationic Emulsion and the nonionic emulsions DC2-7224, DC2-8467 and DC2-8154 (all ex Dow Corning).

An example of a quaternary silicone polymer useful in the present invention is the material K3474, ex Goldschmidt.

Silicone with non-amino functional groups, emulsified The shampoo composition of the invention comprises a silicone with non-amino functional groups. The silicone is insoluble in the aqueous matrix of the shampoo composition and is thus present in an emulsified form, with the silicone present as dispersed particles. The average particle size of the silicone with non-amino functional groups, emulsified in the shampoo composition is less than 2 microns. Ideally, it varies from 0.01 to 1 miera. It has been found that reducing the particle size in this manner improves the overall performance -of conditioning of the shampoo composition. The particle size can be measured by means of a laser light scattering technique, using a 2600D particle size meter from Malvern Instruments. Suitable silicones include polydiorganosiloxanes, in particular polydimethylsiloxanes having dimethicone CTFA designation. Also suitable for use in the shampoo compositions of the invention are the polydimethylsiloxanes having hydroxyl end groups, which have the CTFA designation of dimethiconol. Also suitable for use in shampoos of the invention are silicone rubbers having a slight degree of crosslinking, as described for example in WO 96/31188. These materials can impart body, volume and stability to the hair, as well as good conditioning in wet and dry. The various methods for making the silicone particle emulsions for use in the invention are available and are well known and documented in the art. For example, emulsions can be prepared by high-shear mechanical mixing of silicone and water or by emulsifying the silicone with water and an emulsifier (mixing the silicone in a heated solution of the emulsifier, as an example), or by a combination of emulsion Mechanics and chemistry A suitable, additional technique for the preparation of emulsions of silicone particles is emulsion polymerization. The silicones emulsion polymerized as described in US 2,891,820 (Hyde), US 3,294,725 (Findlay) and US 3,360,491 (Axon). Silicone emulsions suitable for use in the invention are commercially available in a pre-emulsified form. This is particularly preferred because the pre-formed emulsion can be incorporated into the shampoo composition by simple mixing. Pre-formed emulsions are available from silicone oil suppliers such as Dow Corning, General Electric, Union Carbide, Wacker Chemie, Shin Etsu, Toshiba, Toyo Beauty Co, and Toray Silicone Co. The viscosity of the silicone itself (not the emulsion or the final shampoo composition) is typically at least 10, 000 cst. In general, it has been found that the conditioning performance increases with the increased viscosity. Accordingly, the viscosity of the silicone itself is preferably at least 60,000 cst, more preferably at least 500,000 cst, ideally at least 1,000,000 cst. Preferably the viscosity does not exceed 109 cst for ease of formulation. The viscosity can be measured by means of a glass capillary viscometer as further set forth in the Dow Corning CTM004 corporate test method July 20, 1970. Examples of suitable pre-formed emulsions include the emulsions DC2-1766, DC2-1784, and DC2 microemulsions. -1865 and DC2-1870, all available from Dow Corning. These are all dimethiconol emulsions / microemulsions. DC2-1766 and DC2-1784 each have an average silicon particle size in the emulsion of less than 2 microns. DC2-1865 and DC2-1870 each have an average silicon particle size in the microemulsion of less than 0.15 microns. Cross-linked silicone rubbers are also available in a pre-emulsified form, which is advantageous for ease of formulation. A preferred example is the material available from Dow Corning as DC X2-1787, which is an emulsion of cross-linked dimethiconol gum having an average silicone particle size in the 0.5 micron emulsion. A further preferred example is the material available from Dow Corning as DX X2-1391, which is a cross-linked dimethiconol gum microemulsion having an average particle size of silicone in the microemulsion of 0.045. micheras Silicone Relations It has been found that the performance of the emulsified silicone with a small particle size in a shampoo composition based on surfactants can be significantly enhanced by the presence of a silicone or amine functional groups. The weight ratio of the silicone with amino functional groups to the silicone with non-amino functional groups is generally 1: 2 or less. Suitably, the ratio of the silicone with amino functional groups to the silicone with non-amino functional groups ranges from 1: 2 to 1:20, preferably from 1: 3 to 1:20, more preferably 1: 3. to 1: 8, optimally approximately 1: 4.

Silicone Levels The total amount of silicone (with amino functional groups and non-amino functional groups) incorporated into the shampoo compositions of the invention depends on the level of conditioning desired and the material used. A preferred amount is from 0.01 to about % by weight of the total composition although these limits are not absolute. The lower limit is determined by the minimum level to achieve conditioning and the upper limit by the maximum level to prevent the hair and / or skin from becoming unnecessarily greasy. It has been found that a total amount of silicone from 0.3 to 5%, preferably from 0.5 to 3%, by weight of the total composition is an adequate level.

Cationic Deposit Polymer A cationic deposition polymer is a preferred ingredient in the shampoo compositions of the invention, to improve the conditioning performance of the shampoo. By "reservoir polymer" is meant an agent that improves the deposition of the silicone component from the shampoo composition at the proposed site during use, i.e., the hair and / or the scalp. The reservoir polymer may be homopolymer or formed from two or more types of monomers. The molecular weight of the polymer will generally be between 5,000 and 10,000,000, typically at least 10,000 and preferably in the range of 100,000 to approximately 2,000,000. The polymers will have nitrogen-containing, cationic groups such as protonated amino groups or quaternary ammonium, or a mixture thereof. The nitrogen-containing, cationic group will generally be present as a substituent in a fraction of the total monomer units of the deposition polymer. In this way, when the polymer is not a homopolymer it can contain non-cationic monomer separating units. These polymers are described in the CTFA Cosmetic Ingredient Directory, 3rd edition. The reiation of cationic to non-cationic monomeric units is selected to give a polymer having a cationic charge density in the required range. Suitable cationic deposition polymers include, for example, copolymers of vinyl monomers having quaternary ammonium or cationic amine functionalities with water soluble separating monomers such as (meth) acrylamide, alkyl and dialkyl (meth) acrylamides, alkyl (meth) acrylic, vinyl- caprolactone and vinyl-pyrrolidine. The substituted alkyl and dialkyl monomers preferably have alkyl groups of 1 to 7 carbon atoms, more preferably alkyl groups of 1 to 3 carbon atoms. Other suitable separators include vinyl esters, vinyl alcohol, maleic anhydride, propylene glycol and ethylene glycol. The cationic amines can be primary, secondary or tertiary amines, depending on the particular species and the pH of the composition. In general, secondary and tertiary amines, especially tertiary amines, are preferred. The amine-substituted vinyl monomers and amines can be polymerized in the amine form and then converted to ammonium by quaternization. The cationic deposition polymers may comprise mixtures of monomer units derived from the quaternary ammonium substituted monomer and / or amine and / or compatible spacer monomers. The deposition, cationic polymers include, for example: -polymers of l-vinyl-2-pyrrolidine and 1-vinyl-3-methyl-imidazolium salt (for example chloride salt), referred to in the industry by the Cosmetic, Toiletry and Fragrance Association (CTFA) as polyquaternium-16 . This material is commercially available from BASF Wyandotte Corp. (Parsippany, NJ, USA) under the trade name LUVIQUAT (for example, LUVIQUAT FC 370); - copolymers of l-vinyl-2-pyrrolidine and dimethylaminoethyl methacrylate, referred to in the industry (CTFA) as polyquaternium-11. This material is commercially available from Gaf Corporation (Waye, NJ, USA) under the trade name GAFQUAT (for example GAFQUAT 755N); - cationic diallyl quaternary ammonium polymers, including, for example, dimethyldiallylammonium chloride homopolymer and acrylamide copolymers and dimethyldiallylammonium chlorides, referred to in industry (CTFA), as polyquaternium 6 and polyquaternium 7, respectively; mineral acid salts of aminoalkyl esters of mono- and co-polymers of unsaturated carboxylic acids having from 3 to 5 carbon atoms, (as described in U.S. Patent No. 4,009,256); - cationic polyacrylamides (as described in W095 / 22311).

Other cationic deposition polymers that can be used include polysaccharide polymers, cationic polysaccharides, such as cationic cellulose derivatives, cationic starch derivatives, and cationic guar gum derivatives. Polymers of cationic polysaccharides suitable for use in the compositions of the invention include those of the formula: A-O- [R-N + (R1) R2) (R? X " wherein: A is a residual group of anhydroglucose, such as a cellulose anhydroglucose residue or starch. R is an alkylene, oxyalkylene, polyoxyalkylene, or hydroxyalkylene group, or combination thereof. R1, R2 and R3 independently represent alkyl, aryl, alkylaryl, arylalkyl, alkoxyalkyl, or alkoxyaryl groups, each group containing up to 18 carbon atoms. The total number of carbon atoms for each cationic portion (ie, the sum of carbon atoms in RJ R 'and R ^ is preferably about 20 or less, and X is an anionic counterion.) Cationic cellulose is available from Amerchol Corp (Edison, NJ, USA) and its polymer series JR (registered trademark) and LR (registered trademark) of polymers, such as salts of hydroxyethylcellulose reacted with epoxide substituted with trimethylammonium, referred to in industry (CTFA) , as polyquaternium 10. Another type of cationic cellulose includes the quaternary ammonium salts, polymeric hydroxyethyl cellulose reacted with epoxide substituted with lauryl di ethyl ammonium referred to in the industry (CTFA) as polyquaternium 24. These materials are available from Amerchol Corp. (Edison, NJ, USA), under the trade name Polymer LM-200. Other suitable cationic polysaccharide polymers include cellulose ethers nitrogen-containing, quaternary (for example, as described in U.S. Patent No. 3,962,418), and etherified cellulose and starch copolymers (e.g., as described in U.S. Patent No. 3, 958, 581) ). A particularly suitable type of cationic polysaccharide polymer that can be used is a cationic guar gum derivative, such as guar hydroxypropyltrimonium chloride (commercially available from Rhodia (formerly Rhone-Poulenc) in its trademark series JAGUAR). Examples are JAGUAR C13S and JAGUAR CB289, which have a low degree of substitution of cationic groups and high viscosity. The JAGUAR C15, which has a moderate degree of substitution and a low viscosity, JAGUAR C17, (high degree of substitution, high viscosity), JAGUAR C16, which is a cationic, hydroxypropylated guar derivative containing a low level of substituent group as well as ammonium, quaternary, cationic groups and JAGUAR 162 which is a guar of medium viscosity, of high transparency having a low degree of substitution.

Preferably, the cationic deposit polymer is selected from cationic guar derivatives and cationic cellulose. Particularly preferred deposit polymers are JAGUAR C13S, JAGUAR CB289, JAGUAR C15, JAGUAR C17 and JAGUAR C16 and JAGUAR 162. The cationic deposition polymer will generally be present at levels from 0.001 to 5%, preferably from about 0.01. to 1%, more preferably from about 0.02% to about 0.5% by weight in the total composition.

Other Ingredients ~ The shampoo composition of the invention may additionally comprise from 0.1 to 5% by weight of the total composition of a silicone dispersion agent. Examples are polyacrylic acids, crosslinked polymers of acrylic acid, copolymers of acrylic acid, with a hydrophobic monomer, copolymers of carboxylic acid-containing monomers and acrylic esters, crosslinked copolymers of acrylic acid and acrylate esters, heteropolysaccharide gums and acyl derivatives long chain, crystal clear.

The long chain acyl derivative is desirably selected from ethylene glycol stearate, fatty acid alkanolamides having from 16 to 22 carbon atoms and mixtures thereof. Ethylene glycol distearate and polyethylene glycol distearate are preferred long chain asyl derivatives. Polyacrylic acid is commercially available as Carbopol 420, Carbopol 488 and Carbopol 493. Acrylic acid polymers crosslinked with a polyfunctional agent can also be used, they are commercially available as Carbopol 910, Carbopol 934, Carbopol 940, Carbopol 941 and Carbopol 980. An example of a suitable copolymer of a carboxylic acid containing monomer and esters of acrylic acid is Carbopol 1342. All Carbopol materials are available from Goodrich and Carbopol is a registered trademark. Suitable cross-linked polymers of acrylic acid and acrylate esters are Pemulen TR1 or Pemulen TR2. A heteropolysaccharide gum is xanthan gum, for example, it is available as Kelzan mu. The compositions of this invention may contain any other ingredient used normally in the hair treatment formulations. These other ingredients may include viscosity modifiers, preservatives, coloring agents, polyols such as glycerin and propylene glycol, chelating agents such as EDTA, antioxidants, fragrances and sunscreens. Each of these ingredients will be present in an effective amount to achieve its purpose. In general, these optional ingredients are included individually at a level of up to about 5% by weight of the total composition. Preferably, the compositions of this invention also contain adjuvants suitable for hair care. In general, these ingredients are included individually at a level of up to 2%, preferably up to 1% by weight of the total composition. Among the suitable hair care adjuvants are: (i) natural hair root nutrients, such as amino acids and sugars. Examples of suitable amino acids include arginine, cysteine, glutamine, glutamic acid, isoleucine, leucine, methionine, serine and valine, and / or precursors and derivatives thereof. The amino acids can be added individually in a mixture, or in the form of peptides, for example, di and t-peptides. The amino acids can also be added in the form of a protein hydrolyzate, such as a keratin or collagen hydrolyzate. The suitable sugars are glucose, dextrose and fructose. These can be added individually or in the form of, for example, fruit extracts. A particularly preferred combination of hair root nutrients, natural for inclusion in compositions of the invention is isoleucine and glucose. A particularly preferred amino acid nutrient is arginine. (ii) hair fiber benefit agents. The examples are: - Ceramides, to increase fiber and maintain the integrity of the cuticle. Ceramides are available by extraction from natural sources, or as synthetic ceramides and pseudoceramides. A preferred ceramide is Ceramide II, ex Quest. The mixture of ceramides may also be suitable, such as Ceramides Ls, ex Laboratories Serobiologiques The invention is further illustrated by way of the following non-limiting example: EXAMPLES Example 1 A shampoo composition was prepared by mixing the following components in the amounts indicated: Ingredient _% by weight Lauryl -sulphite sodium (2E0) 14.0 Cocamidopropyl-betaine 2.0 Silicone'11 with non-amino functional groups 1.5 Sodium chloride 1.5 Silicone (2) with amino functional groups 0.5 Carbopol 980 (3) 0.4 JAGUAR C13S () 0.1 Conservative, perfume c. s. Water Color for 100.0 (1) Silicone with non-amino functional groups was included as DC2-1784 from Dow Corning Ltd., an emulsion (50% ai) of dimethiconol (1 million cst, 0.5 micron particle size) in anionic surfactant (TEA-). dodecylbenzensulfonate). (2) Silicone with amino functional groups was included as DC929 from Dow Corning Ltd., an emulsion (35% a. I.) Of amodimetone in cationic surfactant (sebotrichment chloride) and nonionic surfactant (onoxinol-10). (3) Carbopol 980 is a crosslinked polyacrylate available from B F Goodrich. (4) Jaguar C13S is hydroxypropyl ri onium chloride of guar available from Rhodia (formerly Rhone-Poulenc), Example 2 and Comparative Example A (5) EUPERLAN PK3000, ex Henkel í6 > An emulsion (35% a. I.) Of aminoethylaminopropyl-dimethylsiloxane emulsified with alkyl trimethylammonium chloride and polyethoxylated tridecyl alcohol, ex Dow Corning. ! 7) Dimethicone fluid, viscosity 60,000 cst, ex Dow Corning. (8) An emulsion (60% a. I.) Of dimethiconol (1 million cst, 0.5 micron in particle size) an anionic surfactant (sodium lauryl sulfate) ex Dow Corning.

The shampoos of Example 2 and Comparative Example A were subjected to panel evaluation for various attributes of wet and dry conditioning. The preferences of the panelists are shown in the following Table: Clearly, the composition of the invention (with high viscosity silicone and silicone with amino functional groups) works better than the composition of the Comparative Example with respect to the tested attributes.

Claims (8)

1. CLAIMS 1. An aqueous shampoo composition comprising, in addition to water: (i) at least one surfactant chosen from anionic, nonionic, zwitterionic or amphoteric surfactants, or mixtures thereof; (ii) a silicone with amino functional groups; and i) emulsified particles of a silicone with non-amino functional groups, insoluble, in which the silicone with non-amino, emulsified functional groups has an average silicone particle size in the shampoo composition of less than 2 microns.
2. 2. A shampoo composition according to claim 1, wherein the silicone with non-amino, emulsified functional groups has an average silicone particle size in the shampoo composition from 0.01 to 1 micron.
3. 3. A shampoo composition according to claim 1 or claim 2, wherein the weight ratio of the silicone with amino functional groups (ü) to the silicone with non-amino functional groups (iii) is 1: 2 or less.
4. 4. A shampoo composition according to any preceding claim, wherein the amino functionalized siloxane has one mole percent amine functionality in the range from about 0.1 to about 8.0 mole%, preferably from about 0.1 to about
5. 5.0 % in mol, more preferably from approximately 0.1 to approximately 2.0 mol%. A shampoo composition according to any preceding claim, wherein the silicone with amino functional groups is in the form of an emulsion of silicone oil with amino functional groups with a nonionic and / or cationic surfactant and in which the The average particle size of the silicone with amino functional groups in the shampoo composition is less than 2 microns, preferably 0.01 to 1 micron. "
6. 6. A shampoo composition according to any preceding claim, wherein the silicone with non-amino, emulsified functional groups has a viscosity (of the same silicone) of at least 500,000 cst.
7. 7. A shampoo composition according to any preceding claim, wherein the total amount of silicone is from 0.3 to 5%, preferably from 0.5 to 3%, of weight in the total shampoo composition.
8. 8. A shampoo composition according to any preceding claim, further comprising from 0.001 to 5% by weight of the total shampoo composition of a cationic deposition polymer selected from cationic guar and cationic cellulose derivatives.