MXPA01007886A - Shampoo compositions - Google Patents

Abstract

Hair conditioning shampoo compositions are provided which contain a combination of conditioning agents including emulsified silicones, cationic polymers and certain fatty acid polyesters of polyols. Suitable fatty acid polyesters are sucrose pentalaurate, sucrose tetraoleate, sucrose pentaerucate, sucrose tetraerucate, sucrose tetrastearate, sucrose pentaoleate, sucrose octaoleate, sucrose pentatallowate, sucrose trirapeate, sucrose tetrarapeate, sucrose pentarapeate, sucrose tristearate and sucrose pentastearate, and mixtures thereof. The compositions give improved hair conditioning benefits, especially to hair which has been damaged, e.g. through environmental exposure or harsh mechanical or chemical treatments such as heat styling, perming or bleaching.

Description

C OMPOSITIONS OF SHAMPOO FIELD OF THE INVENTION This invention relates to hair conditioning shampoo compositions containing a combination of conditioning agents including emulsified silicones, cationic polymers and certain polyol fatty acid polyesters.

BACKGROUND AND PREVIOUS TECHNIQUE The use of conditioning agents in hair shampoo formulations is well known and widely documented. A variety of conditioning agents have been described in this context, the main classes of such agents being silicones, cationic polymers and oily materials such as hydrocarbons, higher alcohols, fatty acid esters, glycerides and fatty acids. Fatty acid polymers of cyclic polyols and / or sugar derivatives have been described as a component of hair conditioning formulations in the following documents: WO 98/04241 discloses that a conditioning system comprising a mixture of polyol carboxylic acid ester and water-soluble, non-ionic, particular polymers are valuable in shampoo compositions for the provision of improved sensation and handling ability of hair. Polymeric materials of cationic cellulose derivatives can be included in the compositions as optional ingredients. WO 96/37594 discloses a personal cleansing composition producing soft foam with good skin feel attributes, which is based on a combination of a nonionic surfactant agent dispersant in oil and dispersed oil phase, which is a mixture of a liquid polyol fatty acid polyester and the second oil component comprising one or more non-polar oils, preferably selected from mineral oil, petrolatum, water insoluble silicones, soybean oil and mixtures thereof. The use of this mixed oily system is said to provide an improved feeling to the skin. WO 98/04240 describes a shampoo composition containing a particular surfactant base of short chain alkyl sulfate and alkyl ethoxy sulfate in combination with a conditioning system comprising a soluble oil conditioning agent selected from silicone materials, acid esters liquid polyol carboxylic acids and mixtures thereof. JP-A-10 / 077,215 discloses a cosmetic material consisting of fatty acid ester of saccharide and one or more siloxanes selected from methylpolysiloxane, methylphenylsiloxane and methylpolycyclosiloxane. The composition is said to provide good styling and feeling after washing when used as a rinse or hair treatment. A problem encountered with shampoo conditioner formulations is that the conditioning operation may be insufficient for many people, particularly in regions such as Japan and Southeast Asia, where consumers desire a high level of conditioning and a feeling of "heavy" to their hair. The simple rinse of level of conditioning agent in the formulation is not a satisfactory solution, since some conditioning agents tend to develop on the hair and are difficult to rinse at high levels, leading to an undesirably viscous or coating feeling. To improve the conditioning efficiency, various combinations of conditioning ingredients have been proposed in shampoo formulations, as follows: Cationic polymers have been described for improving the deposition of silicone from a shampoo cleansing base in EP 0432 951 and EP 0529 883. WO 93/08787 discloses a three component conditioning system for delivering from the shampoo composed of insoluble silicone, cationic polymer of specific charge density and an oily liquid to provide shine and luster to the hair, which is preferably selected from, among others, hydrocarbon oils such as paraffin oil and mineral oil, and alkyl / alkenyl esters of fatty acids such as isopropyl isostearate and isocetyl stearoyl stearate.

The inventors of the present have found that a specific combination of conditioning agents: emulsified silicones, cationic polymers and fatty acid polyesters of cyclic polyols and / or sugar derivatives, provides a surprisingly improved complete conditioning, as compared to the various binary combinations of those individual ingredients, which are described in the prior art. In addition, the softness of the hair is particularly improved. The compositions of the invention also have particular utility in the treatment of hair that has been damaged, for example, through exposure to the environment or strong mechanical or chemical treatments such as combing with heat, making permanent or discoloring. In such cases, the benefits of softness and ease of combing provided by the compositions of the present invention are especially apparent.

COM PENDIÓ OF THE INVENTION The present invention provides an aqueous shampoo composition comprising, in addition to water: i) at least one surfactant clea selected from anionic, zwitterionic and amphoteric surfactants, or mixtures thereof, and ii) a combination of conditioning agents which It includes: (a) emulsified particles of an insoluble silicone; (b) a cationic polymer, and (c) a fatty acid polyester of a polyol selected from cyclic polyols, sugar derivatives and mixtures thereof.

DETAILED DESCRIPTION AND PREFERRED MODALITIES Surface-active Cleaner The shampoo compositions according to the invention will comprise one or more surface-active cleansing agents, which are cosmetically acceptable and suitable for topical application to hair. Other surfactants may be present as an additional ingredient if a sufficiency is not provided for cleaning purposes as the emulsifying agent for oily or hydrophobic components (such as silicones) present in the shampoo. It is preferred that the shampoo compositions of the invention comprise at least one additional surfactant (in addition to that used as an emulsifying agent) to provide a cleaning benefit. Suitable surface-active cleansing agents, which may be used individually or in combination, are selected from anionic, amphoteric and zwitterionic surfactants, cationic active agents and mixtures thereof. The surfactant cleansing agent may be the same surface active agent as the emulsifier, or may be different. Preferred cleansing surfactants are selected from anionic, amphoteric and zwitterionic surfactants, and mixtures thereof. Examples of anionic agents are alkyl sulfates, alkyl ether sulphates, alkaryl sulfonates, alkanoyl isethionates, alkyl succinates, alkyl sulfosuccinates, N-alkyl sarcosinates, alkyl phosphates, alkyl ether phosphates, alkyl ether carboxylates and alpha-olefin sulphonates, especially their sodium, magnesium, ammonium salts, and mono-, di-, and triethanolamine. The alkyl and acyl groups generally contain from 8 to 18 carbon atoms and can be unsaturated. The alkyl ether sulphates, alkyl ether phosphates and alkyl ether carboxylates may contain from 1 to 10 ethylene oxide or propylene oxide units per molecule. Typical anionic surfactants for use in the shampoos of the invention include sodium oleyl succinate, ammonium lauryl sulfosuccinate, ammonium lauryl sulfate, sodium dodecylbenzenesulfonate, triethanolamine dodecylbenzenesulfonate, sodium cocoyl isethionate, sodium lauryl isethionate and N-lauryl sodium sarcosinate. The most preferred anionic surfactants are sodium lauryl sulfate, triethanolamine monolauryl phosphate, sodium lauryl ether sulfate 1EO, 2EO and 3EO, ammonium lauryl sulfate and ammonium lauryl ether sulfate 1EO, 2EO and 3EO. Examples of amphoteric and zwitterionic surfactants include alkylamine oxide, alkyl betaines, alkyl amidopropyl betaines, alkyl sulfobetaines (sultaines), alkyl glycinates, alkyl carboxyglycinates, alkyl ampropropionates, alkyl amphiphilinates, alkyl amidopropyl hydroxysultaines, acyl taurates and acyl glutamates, wherein the alkyl and acyl groups have from 8 to 19 carbon atoms. carbon. Typical amphoteric and zwitterionic surfactants for use in the shampoos of the invention include lauryl amine oxide, cocodimethyl sulfopropyl betaine and preferably lauryl betaine, cocoamidopropyl betaine and sodium cocacanopropionate. The shampoo composition may also include co-surfactants, to help impart aesthetic, physical and cleansing properties to the composition. A preferred example is a nonionic surfactant, which may be included in an amount ranging from 0% to about 5% by weight based on the total weight. For example, representative nonionic surfactants which may be included in the shampoo compositions of the invention include condensation products of primary or secondary branched or linear branched chain alcohols or phenols, aliphatic (8 to 18 carbon atoms) with oxides of alkylene, usually ethylene oxide and generally having from 6 to 30 ethylene oxide groups. Other representative nonionics include mono- or dialkylalkanolamines. Examples include cocomono or diethanolamide and cocomono isopropanolamide. Other nonionic surfactants that can be included in the field compositions of the invention are the alkyl polyglycosides (APGs). Typically, the APG is one which comprises an alkyl group connected to (optionally through a group of bridges) a block of one or more glycosyl groups. The preferred APGs are defined by the following formula: RO - (G) n wherein R is a straight or branched chain alkyl group, which may be saturated or unsaturated, and G is a saccharide group. R can represent an average alkyl chain length of about 5 to about 20 carbon atoms. Preferably, R represents an average alkyl chain length of about 8 to about 12 carbon atoms. Most preferably, the value of R lies between 9.5 and about 10.5. G may be selected from monosaccharide residues of 5 to 6 carbon atoms, and preferably is a glucoside. G can be selected from the group comprising glucose, xylose, lactose, fructose, mannose and derivatives thereof. Preferably, G is glucose. The degree of polymerization, n, may have a value from about 1 to about 10 or more. Preferably, the value of n lies on the scale of about 1.1 to about 2. Most preferably the value of n lies on the scale of about 1.3 to about 1.5. Suitable alkyl polyglycosides for use in the invention are commercially available and include, for example, those materials identified as Oramix NS10 ex Seppic; Plantaren 1299 and Plantaren 200 ex Henkel. The total amount of surfactant (including any co-surfactant, and / or any emulsifying agent) in the shampoo compositions of the invention is generally from 0.1 to 50% by weight, preferably from 5 to 30%, most preferably from 10 to 25% by weight of the total shampoo composition.

Emulsified Particles of Insoluble Silicone Silicone is insoluble in the aqueous matrix of the shampoo composition of the invention and is thus present in an emulsified form, with the silicone present as dispersed particles. Suitable silicones include polydiorganosloxanes, in particular polydimethylsiloxanes which have the dimethicone designated CTFA. Also suitable for use in the compositions of the invention are functional hydroxysilicones, in particular polydimethylsiloxanes having hydroxyl end groups, which have the dimethicone with the designation CTFA. Also suitable for use in compositions of the invention are silicone gums, which have a slight degree of entanglement, as described in, for example, WO 96/31188. These materials can impart body, volume and combing ability to the hair, as well as good conditioning in dry and wet. A further preferred class of silicones to be included in the shampoos of the invention are functional aminosilicones. By "functional aminosilicon" is meant a silicone containing at least one primary, secondary or tertiary amine group or a quaternary ammonium group. Examples of suitable functional aminosilicones include: (i) polysiloxanes having the CTFA designation "amodimethicone", and the general formula: HO- [Si (CH3) 2-O-] x- [Si (OH) (CH2CH2CH2-NH-CH2CH2NH2) -O-] y-H where x and y are numbers depending on the molecular weight of the polymer generally such that the molecular weight is between 5,000 and 500,000. (I) polysiloxanes having the general formula: R'aG3-a-Si (OSiG2) n- (OSiGbR'2.b) m-O-SiG3.a-R'i wherein: G is selected from H, phenyl, OH or alkyl of 1 to 8 carbon atoms, for example, methyl; a is 0 or an integer of 1 to 3, preferably 0; b is 0 or 1, preferably 1; m and n are numbers so 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, wherein q is a number from 1 to 8, and L is a functional amino group selected from the following : -NR "-CH2-CH2-N (R") 2 -N (R ") 2 -N + (R") 3A "-N + H (R") 2A "-N + H2 (R") A --N (R ") - CH2-CH2-N + H2 (R") A - wherein R "is selected from H, phenyl, benzyl, or a saturated monovalent hydrocarbon radical, for example alkyl of 1 to 20 carbon atoms carbon; and A is a halide ion, for example, chloride or bromide. Suitable amino functional silicones corresponding to the above formula include those polysiloxanes referred to as "trimethylsilyllamodimethicone" as illustrated below, and in which they are sufficiently insoluble in water in order to be useful in the compositions of the invention: Si (CH3 ) 3 - O - [Si (CH3) 2 - O -] x - [Si (CH3) (R - NH - CH2CH2NH2) - O -] and - Si (CH3) 3 where x + y is a number of about 50 to about 500, and wherein R is an alkylene group having from 2 to 5 carbon atoms. Preferably, the number x + y is in the range from about 100 to about 300. (iii) quaternary silicone polymers having the general formula: . { (R1) (R2) (R3) N + CH2CH (OH) CH2O (CH2) 3 [Si (R4) (R5) -O-] n-Si (R6) (R7) - (CH2) 3-O-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, saturated or unsaturated straight or short chain al (en) yl, branched chain alkenyl and cyclic ring systems 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 alkenyl, cyclic ring systems of 5 to 8 carbon atoms; n is a number within the range of about 60 to about 120, preferably about 80, and X "preferably is acetate, but rather, it may be, for example, halide, organic carboxylate, organic sulfonate, or the like. Suitable quaternary silicone polymers of this class are described in EP-A-0 530 974. The amino functional silicones suitable for use in the shampoos of the invention will typically have a molar percentage of amine functionality, in the range from about 0.1 to about 8.0 % molar, preferably about 0.1 to 5.0 mole%, and most preferably about 0.1 to 2.0 mole% In general, the amine construction should not exceed about 8.0 mole%, since it has been found that an amine concentration too can be dangerous for the total deposition of the silicone and, therefore, the conditioner operation Specific examples of suitable amino functional silicones For use in the invention are the amino silicone oils DC-8220, DC2-8166, DC2-8466, and DC2-8950-114 (all ex-Dow Corning), and GE 1149-75 (former General Electric Silicones). An example of a quaternary silicone polymer useful in the present invention is the material K3474, ex Goldschmidt. In general, the conditioning performance of the silicone emulsified in the shampoo composition of the invention tends to increase with the high viscosity of the silicone itself (not the emulsion or final shampoo composition). For dimethicone and dimethiconol type silicones, the viscosity of the siliceous itself is typically at least 1 m2 / s (10,000 cst), preferably at least 6 m2 / s (60,000 cst), most preferably at least 50 m2 / s (500,000 cst), ideally at least 100 m2 / s (1,000,000 cst). Preferably, the viscosity does not exceed 105 m / s (109 cst) to facilitate the formulation. For functional amino silicones, the viscosity of the silicone itself is not particularly critical and can conveniently vary from about 0.01 to 50 m2 / s (from about 100 to about 500,000 cst). The silicones emulsified for use in hair shampoo compositions of the invention will typically have an average silicone particle size in the composition of less than 30, preferably less than 20, and most preferably less than 10 μm. Actually, reducing the particle size of silicone tends to improve the conditioner operation. Most preferably, the average silicone particle sizes of the silicone emulsified in the composition is less than 2 μm, ideally ranging from 0.01 to 1 μm. Silicone emulsions having an average silicone particle size of < _ 0.15 μm are generally referred to as microemulsions. The particle size can be measured by a laser light bombardment technique (using a 2600D Particle Sizer from Malvern Instruments) The silicone emulsions for use in the invention are also commercially available in a pre-emulsified form. suitable pre-formed emulsions include the emulsions DC2-1766, DC2-1784, and the microemulsions DC2-1865 and DC2-1870, all available from Dow Corning.All these emulsions / microemulsions are dimethiconol.Silicone rubber interlaced in a pre-emulsified form, which is advantageous for facilitating the formulation A preferred example is the material available from Dow Corning as DC X2-1787, which is an emulsion of entangled dimethiconol rubber. A further preferred example is the material available from Dow Corning as DC X2-1391, which is a microemulsion of interlaced dimethiconol gum. Pre-formed functional silicone emulsions are also available from silicone oil suppliers such as Dow Corning and General Electric. Particularly suitable are emulsions of amino functional silicone oils with nonionic and / or cationic surfactants. Specific examples include the cationic emulsion DC929, cationic emulsion DC939, cationic emulsion DC949, and the nonionic emulsions DC2.7242, DC-8467, DC2-8177 and DC2-8154 (all from Dow Corning). Mixtures of any of the above types of silicone can also be used. Particularly preferred are hydroxy-functional silicones, and amino functional silicones and mixtures thereof. The total amount of silicone incorporated in compositions of the invention depends on the level of conditioning desired and the material used. A preferred amount is from 0.01 to about 10% by weight of the total composition, although these limits are not absolute. The lower limit is determined by the minimum level to achieve the conditioning and the upper level by the maximum level to avoid making the hair unacceptably greasy. When the silicone is incorporated as a pre-formed emulsion as described above, the exact amount of emulsion, of course, will depend on the concentration of the emulsion, and should be selected to give the desired amount of silicone in the final composition.

Cationic Polymer A cationic polymer is an essential ingredient in shampoo compositions of the invention, to improve the conditioner performance of the shampoo. The cationic polymer can be a homopolymer or can be formed from two or more types of monomer. 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 from 100 000 to about 2 000 000. the polymer will have groups containing cationic nitrogen such as quaternary ammonium groups or protonated amino, or mixture thereof. The group containing cationic nitrogen will generally be present as a substituent in a fraction of the total monomer units of the cationic polymer. In this way, when the polymer is not a homopolymer, it may contain non-cationic monomer separating units. Such polymers are described in CTFA Cosmetic Ingredient Directory, 3rd. edition. The ratio of the cationic and non-cationic monomer units is selected to give a polymer having a cationic charge density in the required scale.

Suitable cationic polymers include, for example, copolymers of vinyl monomers having cationic amine or quaternary ammonium functionalities with water soluble spacer monomers such as methacrylamide, alkyl and dialkyl methacrylamides, alkyl methacrylate, vinyl caprolactone and vinyl pyrrolidine. The alkyl and dialkyl substituted monomers preferably have alkyl groups of 1 to 7 carbon atoms, most preferably alkyl groups of 1 to 3 carbon atoms. Other suitable spacers include vinyl ester, 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 via quaternization. The cationic polymers may comprise mixtures of monomer units derived from amine substituted monomer and / or quaternary ammonium and / or compatible spacer monomers. Suitable cationic polymers include, for example: Copolymers of 1-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 1-vinyl-2-pyrrolidine and dimethylaminoethyl methacrylate, referred to in the industry as (CTFA) Polyquaternium-11. This material is commercially available from Gaf Corporation (Wayne, NJ, USA), under the trade name GAFQUAT (eg, GAFQUAT 755N); Cationic quaternary diallylammonium containing polymers including, for example, dimethyldiallylammonium chloride homopolymer and copolymers of acrylamide and dimethyldiallylammonium chloride, referred to in the industrial (CTFA) as Polyquaternium 6 and Polyquaternium 7, respectively; Mineral acid salts of amino-alkyl esters and homo and co-polymers of saturated carboxylic acids having from 3 to 5 carbon atoms, (as described in the patent of US Pat. No. 4,009,256); Cationic polyacrylamides (as described in WO 95/22311). Other cationic polymers that may be used include cationic polysaccharide polymers, such as cationic cellulose derivatives, cationic starch derivatives, and cationic guar gum derivatives. Suitable cationic polysaccharide polymers for use in the compositions of the invention include those of the formula: A-O-IR-N ^ R'XRR) X "l. wherein: A is a residual group of anhydroglucose, such as residual starch or anhydroglucose cellulose. R is an alkylene, oxyalkylene, polyoxyalkylene or hydroxyalkylene group, or combinations thereof. R R2 and R3 independently represent alkyl, aryl, alkylaryl, arylalkyl, alkoxyalkyl or alkoxyaryl groups, each group containing up to about 18 carbon atoms. The total number of carbon atoms for each cationic portion (ie, the sum of carbon atoms in R 2 and R 3) is preferably about 20 or less, and X is an anionic counterion. Cationic cellulose is available from Amerchol Corp.

(Edison, NJ, USA) in its polymer series Polymer JR (tradename) and LR (tradename), as hydroxyethyl cellulose salts that reacted with trimethylammonium substituted epoxide, named in the industrial (CTFA) as Polyquaternium 10. Other Type of cationic cellulose includes the polymeric quaternary ammonium salts of hydroxyethylcellulose which reacts with epoxide substituted with lauryl dimethyl ammonium, referred to in the industry (CTFA) as Polyquaternium 24. These materials are available from Amerchol Corp. (Edison, NJ, USA) under the trade name of Polymer LM-200.

Other suitable cationic polysaccharide polymers include quaternary nitrogen containing cellulose ethers (e.g., as described in US Patent 3,962,418), and etherified cellulose copolymers and starch (e.g., as described in US Patent 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 Rhone-Poulenc in its trademark series JAGUAR). Examples are JAGUAR C13S, which has low substitution of cationic groups and high viscosity. JAGUAR C15, having a moderate degree of substitution and a low viscosity, JAGUAR C17, having a high degree of substitution and a high viscosity, JAGUAR C16, which is a hydroxypropylated cationic guar derivative containing a low level of substituent groups as well as quaternary ammonium groups and cationic, and JAGUAR 162, which is a guar gum of medium viscosity, with a high transparency, having a low degree of substitution. Preferably, the cationic polymer is selected from cationic cellulose and cationic guar gum derivatives.

Fatty Acid Polyester An additional essential component in the shampoo compositions of the invention is a fatty acid polyester of a polyol selected from cyclic polyols, sugar derivatives and mixtures thereof. By "polyol" is meant a material having at least four hydroxyl groups. The polyols used to prepare the fatty acid polyester will preferably have from 4 to 12, preferably from 4 to 11, and most preferably from 4 to 8 hydroxyl groups. By "fatty acid polyester" is meant a material in which at least two of the ester groups are independently linked to one another to a fatty chain (alkyl or alkenyl of 8 to 22 carbon atoms). For a given material, the prefixes such as "tetra-", "penta-" indicate the average degrees of esterification. The compounds salts as a mixture of materials that vary from the monoester to the fully esterified ester. Cyclic polyols are the preferred polyols used to prepare the fatty acid polyester in the present invention. Examples include inositol, and all forms of saccharides. Saccharides, in particular monosaccharides and disaccharides, are especially preferred. Examples of monosaccharides include xylose, arabinose, galactose, fructose, sorbose and glucose. Especially preferred is glucose. Example disaccharides include maltose, lactose, cellobiose and sucrose. Sucrose being especially preferred. Examples of suitable sugar derivatives include sugar alcohols, such as xylitol, erythritol, maltitol and sorbitol, and sugar ethers such as sorbitan. The fatty acids used to prepare the fatty acid polyester in the present invention have from 8 to 22 carbon atoms. They can be branched or linear, and saturated or unsaturated. Examples of suitable fatty acids include caprylic, capric, lauric, myristic, myristoleic, palmitic, palmitoleic, stearic, 12-hydroxystearic, oleic, ricinoleic, linoleic, linolenic, arachidic, arachidonic, behenic, and erucic acids. Erucic acid is particularly preferred. Mixed fatty acid portions from bridging oils, which contain substantial amounts of the desired unsaturated or saturated acids can be used as the acid portions to prepare fatty acid polyesters suitable for use in their hair treatment composition of the invention. The mixed fatty acids of the oils must contain at least 30%, preferably at least 50%, of the desired unsaturated acids. For example, fatty acids of rapeseed oil with a high erucic content can be used, instead of the unsaturated acids of 20 to 22 carbon atoms, and be hardened, that is, hydrogenated, erucic rapeseed oil fatty acids can be used instead of saturated acids of 20 to 22 carbon atoms. Preferably, C20 and higher acids, or their derivatives, for example methyl or lower alkyl esters, are concentrated, for example, by distillation.

The fatty acids of palm oil or coconut oil can be used as a source of acids of 8 to 22 carbon atoms, and those of cottonseed oil and soybean oil as a source of acids of 16 to 18 carbon atoms. carbon. Specific examples of suitable fatty acid polyesters are sucrose pentalaurate, sucrose tetraoleate, sucrose pentaerucate, sucrose tetraerucate, sucrose tetrastearate, sucrose pentaoleate, sucrose octaoleate, sucrose pentaseboate, sucrose trirapeate, sucrose tetrarrapeate, sucrose pentarapeate, sucrose tristearate, and sucrose pentastorbate, and mixtures thereof. Sucrose pentaerucate and sucrose tetraerucate are particularly preferred. These materials are commercially available from Ryoto Sugar Esters ex Mitsubishi Kasei Foods. It is also advantageous if the ester groups of the fatty acid polyester are independently of each other attached to a fatty chain (alkyl or alkenyl of 8 to 22 carbon atoms, or a short chain alkyl chain of 2 to 8 carbon atoms, and wherein the ratio of group numbers of 8 to 22 carbon atoms to groups of 2 to 8 carbon atoms in the fatty acid polyester molecule ranges from 5: 3 to 3: 5, preferably from 2: 1 to 1 : 2, most preferably around 1: 1, the polyol used to prepare said material preferably is a saccharide, most preferably glucose, with at least 5 of the hydroxyl groups being there.These products are in the main oils and thus They are easy to formulate Specific examples are glucose pentaesters, wherein about 50% by number of the ester groups are acetyl groups and about 50% by number of the ester groups are octanoyl, decanoyl or decanoyl groups, respectively. The synthesis of this type of material is described in WO98 / 16538. The fatty acid polyester can be prepared through a variety of methods well known to those skilled in the art. These methods include acylation of the cyclic polyol or reduced saccharide with an acid chloride. Trans-esterification of the cyclic polyol or fatty acid esters with a reduced content of saccharide using a variety of catalysts; acylation of the cyclic polyol or reduced saccharide with an acid anhydride and acylation of the cyclic polyol or reduced saccharide with a fatty acid. Typical preparations of these materials are described in US 4 386 213 and AU 14416/88. The total amount of fatty acid polyester in the hair treatment compositions of the invention is generally from 0.001 to 10% by weight, preferably from 0.01 to 5%, most preferably from 0.01% to 3% by weight of the composition of treatment for total hair.

Optional Ingredients The compositions of this invention may contain any other ingredients normally used in hair treatment formulations. These other ingredients may include viscosity modifiers, preservatives, coloring agents, polyols such as glycerin and polypropylene glycol, chelating agents such as EDTA, antioxidants such as vitamin E acetate, fragrances, antimicrobials and sunscreens. Each of these ingredients will be present in an effective amount to achieve its purpose. In general, these optional ingredients are individually included at a level of up to about 5% by weight of the total composition. Preferably, the compositions of this invention also contain auxiliaries suitable for hair care. Generally, said ingredients are included individually at a level of up to 2%, preferably up to 1%, by weight of the total composition. Among the appropriate hair care aids are: (i) natural nutrients of the hair root, 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 their derivatives. The amino acids can be added individually, in mixtures, or in the form of peptides, for example, di- and tripeptides. The amino acids can also be added in the form of a protein hydrolyzate, such as a keratin hydrolyzate 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. (ii) beneficial agents of hair fiber, their examples are: ceramides, to moisturize the fiber and maintain the integrity of the cuticle. Ceramides are available through traction from natural sources, or as synthetic ceramides and pseudoceramides. A preferred ceramide is Ceramide II, ex Quest. Ceramide mixtures may also be suitable, such as Ceramides LS, ex Laboratoires Serobiologiques. Free fatty acids, for cuticle repair and damage prevention. Examples thereof are branched chain fatty acids such as 18-methyleicosanoic acid and other homologs of this series, straight chain fatty acids such as stearic, myristic and palmitic acids, and unsaturated fatty acids such as oleic acid, linoleic acid, linolenic acid and arachidonic acid. A preferred fatty acid is oleic acid. The fatty acids can be added singly, as mixtures, or in the form of mixtures derived from extracts of, for example, lanolin. Mixtures of any of the above active ingredients can also be used. The invention is further illustrated by the following non-limiting examples, in which all the percentages observed are by weight based on the total weight unless otherwise indicated.

EXAMPLES Example 1 Evaluation in a room The following shampoo formulations were prepared.

Ingredient Example 1 E¡. Comparative A (% / weight) (% / weight) Lauryl ether sulfate 14.0 14.0 Sodium 2EO (SLES) Cocoamidopropyl betaine 2.0 2.0 (CAPB) JAGUAR® C13S 0.2 0.2 CARBOPOL® ETD 2020 0.4 0.4 Silicone emulsion (1) 1.5 1.5 EUPERLAN® PK3000 (2) 6.0 6.0 Sucrose'3 tetrahydrate '0.025 Conservative, cs c.s. Color, fragrance, water and quantities less than 100% to 100%. { 1) Aggregate as DC2-1766 (dimethiconol emulsion in anionic surfactant, 60% active, ex Dow Corning). (2) Spray of glycol stearate, (ex Henkel). (3) Added as Ryoto Sugar Ester ER290 (former Mitsubishi Kasei Foods). Methodology: The classroom test used half of the test head and 36 panelists. Results: Important winners in hair softness were judged through the stylist and panelist (10% and 5% winners, respectively) for Example 1 compared to Comparative Example A.

Example 2 Switching test A pair of shampoo formulations were made having the following formulations: Example 2 Comparative Example B (% / weight) (% / weight) SLES 14 14 CAPB 2 2 JAGUAR® C13S 0.1 0.1 CARBOPOL® ETD 2020 0.4 0.4 Tetraerucate sucrose'11 1 0 Glycerol 2 2 Silicone emulsion (1) 1 2 Water, smaller amounts cs c.s.

The formulations of Example 2 and Comparative Example B were subjected to a pair of tests on a scale of conditioning attributes. Panelists voted for their preferred formulation of the pair of each conditioner attribute and the results are shown in the following Table: Test in pairs% of votes Moist soft 54% 46% Ease of wet combing 57% 43% Dry soft 56% 44% Ease of dry combing 51% 49% Cantilever 51% 49% It is evident that the formulation of Example 2 was preferred by the panelists to the Comparative Example in all tested attributes.

Example 3 Switching Test A pair of shampoo formulations were made having the following formulations: Example 3 Comparative Example C (% / weight) (% / weight) S SLLEESS 14 14 CAPB 2 2 JAGUAR® C13S 0.1 0.1 CARBOPOL® ETD 2020 0.4 0.4 Sucrose'Tetraerucate 1 1 2 G Glycicererololl 2 2 Silicone Emulsion '1' 1 Water, minor amounts cs c.s.

The formulations of Example 3 and Comparative Example C were subjected to a test in pair as in the previous Example. The results are shown in the following Table: Test in pairs% of votes Smooth soft 78% 22% Ease of wet combing 89% 11% Dry soft 68% 32% Ease of dry styling 75% 25% Cantilever 56% 44% It is evident that the formulation of Example 3 was preferred by the panelists to the Comparative Example in all tested attributes.

Claims (5)

1. An aqueous shampoo composition comprising, in addition to water: i) at least one surfactant cleansing agent selected from anionic, zwitterionic, and amphoteric surfactants or mixtures thereof and; ii) a combination of conditioning agents including: (a) emulsified particles of an insoluble silicone; and (b) a fatty acid polyester of a polyol selected from cyclic polyols, sugar derivatives and mixtures thereof, wherein the combination further comprises: (c) a cationic polymer.

2. A composition according to claim 1, wherein the silicone is selected from hydroxyl functional silicones, amino functional silicones and mixtures thereof.

3. A composition according to claim 1 or 2, wherein the cationic polymer is selected from cationic cellulose and cationic guar gum derivatives.

4. A composition according to any of claims 1 to 3, wherein the polyol used to prepare the fatty acid polyester is a saccharide.

5. A composition according to claim 4, wherein the fatty acid polyester is selected from sucrose pentaerucate, sucrose tetraerucate and mixtures thereof.