MXPA97004085A - Limpi compositions - Google Patents

Abstract

The present invention relates to a liquid composition for personal cleansing comprising: A) a regulatory rheological composition comprising: a.) From about 5% to about 60%, by weight of water-soluble surfactant, selected from anionic, nonionic, swerionic and amphoteric surfactants and mixtures thereof, and b.) from about 0.01% to about 10% by weight of hydrophobically modified nonionic cellulose, selected from C10-modified alkynyl and alkenyl C24, ethers of methyl, hydroxyethyl and hydroxypropyl cellulose, having a degree of nonionic substitution in a range of from about 1.8 to about 4, and a degree of hydrophobic substitution in a range from about 0.1% to about 1 % by weight; c.) from about 0 to about 10% by weight of a water soluble polyol; and d.) from about 0.01% to about 5% by weight of a skin-conditioning polymeric cationic agent selected from the group consisting of cationic guar gums, dimethyldialkyl ammonium chloride homopolymers, dimethyl aminoethyl methacrylate and acrylamide chloride copolymers, dimethyldialkyl ammonium chloride and acrylamide copolymers, terpolymers of acrylic acid / dimethyldialkyl ammonium chloride / acrylamide, quaternized vinyl pyrrolidone acrylate or amino alcohol methacrylate copolymers, vinylpyrrolidone / vinyl imidazonium metachloride copolymers, polyalkyleneamines and mixtures thereof, and B) water and wherein the composition preferably exhibits a stress per cut of about 150Pa, at a cutoff index in a range from about 100 s-1, to about 600 s-1 at a temperature of 25

Description

CLEANING COMPOSITIONS FIELD TÉCNI CO The present invention relates to cleaning compositions. In particular, it relates to compositions for personal cleansing, soft, with good attributes perception or sensation of the skin, rheological behavior and foaming properties, which are suitable for simultaneous cleaning and conditioning of the skin and / or hair and which can used, for example, in the form of foam bath preparations, shower products, skin cleansers, -cleaners for hands, face and body, shampoos, etc.

FIELD OF THE INVENTION The soft cosmetic compositions must satisfy a certain number of criteria among which are the cleansing power, the foaming properties and the softness, low irritation / good perception, with respect to the skin, the hair and the ocular mucous membranes. The skin is made up of several layers of cells that coat and protect the fibrous proteins of keratin and collagen that form the skeleton of its structure. The outermost layers, referred to as the stratum corneum, are known to be composed of clusters of 250 A proteins surrounded by layers of a thickness of 80 A. The hair, similarly, has an outer protective coating that It wraps the hair fibers and is called the cuticle. Anionic surfactants can penetrate the membrane of the stratum corneum and the cuticle and, by delipidization effect, destroy the integrity of the membrane. This interference with the protective membranes of the skin and hair can lead to a sensation or perception of rough skin and eye irritation and may eventually allow the surfactant to interact with keratin and hair proteins, creating irritation and loss of hair. barrier and water retention functions. Ideal cosmetic cleansers should clean the skin or hair gently, without de-greasing and / or drying the hair and skin, and without irritating the ocular mucosa or leaving the skin stiff after frequent use. Most cleaning soaps, bath and shower products, shampoos and bars do not comply with this aspect. Some synthetic surfactants are known to be mild. However, a major problem with most mild synthetic surfactant systems, when formulated for shampoos or personal cleansing compositions, is poor foaming compared to the higher standards for shampoos and soap bars. In this way, the surfactants that are among the softest have a marginal effect in terms of foam formation. The use of known high foam anionic surfactants with foam activators can, on the other hand, provide acceptable foaming volumes and an acceptable quality but at the expense of clinical skin softness. These two facts mean that the selection of surfactants and the formulation process to obtain benefits of sudsing and softness are a delicate balancing action. In addition to the performance attributes of sudsing and cleaning that are desired by consumers, it is of particular value that personal cleansing products also provide certain rheological properties during use. In particular, a bath gel product that is capable of demonstrating a shear reduction behavior during application to the skin is preferred by consumers. It is known that water-soluble polymers can be used to provide product thickening attributes and further that hydrophobically modified water-soluble polymers can exhibit improved product thickening performance and impart lower shear characteristics. However, it is also known that these effects of thickening of the product / thinning shear are affected by the total level of surfactant present in the system and, in fact, the thickening / thinning attributes can be significantly decreased in the presence of even very low levels of water-soluble surfactants. A side effect of the high concentration of surfactants and electrolytes in systems containing hydrophobically modified water soluble polymers (HMWSPs) is that at high levels of surfactant the HMWSP can become increasingly insoluble in the product matrix. Therefore, there is a need for personal cleansing products which provide acceptable characteristics of skin perception during use, but which do not dehydrate the skin or result in a loss of skin supplements, and which provide a level of skin conditioning performance in a washing and rinsing product that had previously only been provided by a separate, post-cleaning cosmetic moisturizer, demonstrating a desirable rheological behavior during use and producing a foam that is stable and high quality, that are effective for cleaning the skin and hair, have good rinsing characteristics, and that at the same time have stable viscosity and product characteristics and remain completely stable in the long term and under storage conditions at extreme temperatures . The water-soluble nonionic cellulose ethers are used in a variety of applications, including for hair care compositions. Commercially available nonionic cellulose ethers, widely used, include methylcellulose, hydroxypropylmethylcellulose, hydroxyethyl cellulose, hydroxypropyl cellulose and ethyl hydroxyethyl cellulose. Some modified cellulose ethers have been disclosed in US-A-4,228,277 of Landoll issued on October 14, 1980, which are relatively low molecular weight but which are capable of producing highly viscous aqueous solutions in practical concentrations . These materials are nonionic cellulose ethers having a sufficient degree of nonionic solution, and are selected from the group consisting of methyl, hydroxyethyl and hydroxypropyl to make them soluble in water, and which are further substituted with a hydrocarbon radical having 10 to 20 carbon atoms. to 24 carbon atoms, in an amount of between 0.2 weight percent and that amount which makes the cellulose ether soluble in water by less than 1% by weight. The cellulose ether to be modified is preferably one of low to medium molecular weight, that is, less than 800,000 and preferably between 20,000 and 700,000 (75 to 2500 degree of polymerization).

The modified cellulose ethers have been developed for use in a variety of compositions. Landoll ('277) shows the use of certain materials in shampoo formulations. The commercial literature of Hercules shows the use of modified cellulose ether materials in shampoos, liquid soaps and lotions. US-A-4,683,004 discloses the use of modified cellulose ethers in hair foam compositions (ousse). US-A-4, 485, 089 discloses dentifrice compositions containing modified cellulose ethers. It has been found that personal cleansing compositions having improved wetting and skin perception attributes, both during use and after use, which provide the desirable thickening / thinning (rheology) benefits and good stability of the product, can be formed by the combination of certain modified cellulose ethers, cationic polymers and surfactants. It has also been found that certain modified cellulose ethers having specific degrees of substitution and specific chain lengths confer particular benefits in personal cleansing compositions, in terms of application characteristics and stability.

SUMMARY OF THE INVENTION The subject matter of the present invention relates to a stable, softening, softening, foaming, mild cleansing product, suitable for personal cleansing of the skin, and hair, and which can be used as a bath of foam and as bath products, skin cleansers and shampoos, etc. According to one aspect of the invention, a liquid personal care cleansing composition is provided, comprising: (a) from about 5% to about 60% by weight of water-soluble surfactant selected from anionic, non-ionic surfactants, zwitterionic and amphoteric, and mixtures thereof. (b) from about 0.01% to about % by weight of a hydrophobically modified nonionic cellulose ether selected from alkenyl-modified methyl, hydroxyethyl and hydroxypropyl cellulose ethers and C10"24 'alkyl which have a degree of non-ionic substitution in the range of between about 1.8 and 4 and a degree of hydrophobic substitution in the range of between about 0.1% and 1% by weight, (c) from about 0% to about 10% by weight of water-soluble polyols, (d) from about 0.01% to about 5% by weight of polymeric, cationic skin conditioning agents, and (e) of water The compositions preferably reveal a shear or shear stress of about 150 Pa at a shear rate in the range of between about 100-l. at 600s-1, more preferably between about 400s-1 and 600s-1, at 25 ° C. According to another aspect of the invention a personal cleaning composition is provided which comprises: (a) of about 5% to about 60% by weight of a water-soluble surfactant selected from anionic, nonionic, and amphoteric surfactants and mixtures thereof. (b) between about 0.01% and 10% by weight of a non-ionic, hydrophobically modified cellulose ether selected from alkenyl-modified hydroxyethyl cellulose ethers and C1-C24 alkyl / with a degree of non-ionic substitution in the range of between about 2.2 and 2.8, and with a degree of hydrophobic substitution in the range of between about 0.4% and 6% by weight; and (c) water. This composition preferably exhibits a shear stress of about 150 Pa at a rate of shear in the range of about 400s_1 to 600s-1, at 25 ° C. In a much more preferred embodiment, the invention takes the form of a liquid, foam-producing cleaning composition with superior skin rinsing and perception characteristics, excellent rheological behavior, skin hydration measurements and dryness graduated by experts and perceived dryness, improved, and a loss of transdermal water (TEWL) combined with excellent performance characteristics for conditioning and cleaning capacity, good stability and excellent foam formation. All proportions and concentrations herein are given by weight of the cleaning composition unless otherwise specified. The length of the surfactant chain is also given based on the length of the average weight chain, unless otherwise specified. The liquid cleaning compositions herein are based on a combination of mild surfactants with certain hydrophobically modified cellulose ethers and with polymeric skin conditioning agents. The preferred embodiments also contain cosmetic oils or perfumes.

P427 The compositions of this invention contain, as an essential component, a hydrophobic modified cellulose ether in the form of a rheology modifying agent. The cellulose ethers before the hydrophobic modification have a degree of nonionic substitution in the range of between about 1.8 to 4.0, preferably between about 2 and 3, and especially between about 2.2 and 2.8. The cellulose ethers are then substituted with alkyl or alkenyl groups having 10 to 24 carbon atoms, preferably 14 to 18 carbon atoms in an amount ranging from 0.1 to about 1, preferably between about 0.3 to 0.8, and with particular preference between 0.4 and 0.6 percent by weight. The cellulose ether to be modified is preferably one of low to medium molecular weight, that is, less than 800,000 and preferably between 20,000 and 700,000 (75 to 2500 Degree of Polymerization). The preferred cellulose ether substrate is hydroxyethyl cellulose (HEC) with a molecular weight of 50,000 to 700,000. The hydroxyethyl cellulose of this molecular weight level is the most hydrophobic material of the completed materials. Consequently, the control of the modification process and the control of the properties of the modified product can be more precise with this substrate. The P427 hydrophobicity of the nonionic cellulose ethers that are most commonly used varies in general in the following direction: hydroxymethyl; hydroxypropyl > hydroxypropyl methyl > methyl. The long chain alkyl modifier can be attached to the cellulose ether substrate via an ether, ester or urethane linkage. The ether bond is preferred. Although the modified cellulose ether materials are referred to as "alkyl modified" (the term "alkyl" which is used herein in general includes the use of alkenyl), it will be recognized by those skilled in the art, where the modifications are affected by a alkyl halide, the modifier is not a simple long chain alkyl group. Actually, the group is an alphahydroxyalkyl radical in the case of an epoxide, a urethane radical in the case of an isocyanate, or an acyl radical in the case of an acyl chloride or acid. The general methods for making modified cellulose ethers are shown in Landoll ('277) in the column, lines 36-65. Modified cellulose ethers of defined substitution levels and hydrophobic chain length have been found to be particularly desired to be used as rheology modifiers in the personal cleansing compositions of this invention. The materials are able to stabilize phase suspensions P427 dispersed and, when used with additional components in the compositions of the present invention, produce Theologically thick products that exhibit a desired shear thinning behavior during use. Furthermore, the combination of the hydrophobically modified cellulose ethers with skin polymeric conditioning agents have also been shown to be particularly beneficial from the viewpoint of improving the viscosity in combination with the thinning behavior of the shearing stress, during the application to the skin or hair. The rheology modifying agents used herein are selected from water-soluble hydrophobically modified polymers and, in particular, hydrophobically modified hydroxy ethyl cellulose polymers. Hydrophobically modified hydroxy ethyl cellulose polymers (HMHEC) have a 1% aqueous viscosity in the range of about 8,000 to 13,000 mPas (Brookfield LVT viscometer, spindle No. 4, speed 4). A commercially available material that is suitable for use herein is NATROSOL PLUS Grade 330 CS (RTM), a hydrophobically modified hydroxyethylcellulose available from Aqualon Company, Wilmington, Delaware. This material has a C 16 alkyl substitution of between 0.4% and 0.8% by weight. The molar substitution of hydroxyethyl for this material is from 3.0 to 3.7. The average molecular weight for water soluble cellulose before modification is approximately 300, 000 Other material of this type is sold under the name NATROSOL PLUS CS Grade D-67 (RTM) by Aqualon Company, Wilmington, Delaware. This material has a C16 substitution of between 0.50% and 0.95% by weight. The hydroxyethyl molar substitution of this material is from 2.3 to 3.7. The average molecular weight for water soluble cellulose before modification is about 700,000. For the use of the present invention, polymers of hydroxy ethyl cellulose modified with alkenyl and C 14 to C ± Q alkyl are preferred, having an ethoxylation degree of between about 1.8 and 3.2, preferably between about 2.0 and 3.0, with greater preference between about 2.2 and 2.8, and a level of alkyl and alkenyl substitution of between about 0.3 and 0.8, preferably between about 0.4 and 0.6. More preferred are the cetyl modified hydroxy ethyl cellulose polymers which are available from Aqualon Co., under the tradenames Polysurf 67 (RTM). The hydrophobically modified cellulose ether is preferably present at a level between about 0.02% and 5%, more preferably between P427 about 0.05% and 1%, and with particular preference between about 0.1% and 0.5% by weight. The modified cellulose ethers of the present are particularly valuable for providing excellent stability characteristics over normal temperatures as well as for providing a thinning behavior of the shear stress in a higher surfactant matrix and for providing improved rheological behavior in combination with skin conditioning agents. of polymeric type, cationic, selected. The compositions according to the present invention exhibit shear thinning properties and preferably reveal a shear stress of between about 150 Pa at a shear rate in the range of about 100s-1 and 600s-1 at 25 ° C. The most preferred compositions show a shear stress between about 150 Pa at a shear rate in the range of between about 400s-1 and 600s_1 at 25 ° C (which is measured according to a Carri-Med Rheometer CSL 100 with a spindle of cone of 4cm and a truncated of 2 degrees 49 microns). Suitable neutralization agents that are used in rheology modifying agents that contain P427 neutralizing acidic groups, which are described herein, include sodium hydroxide, potassium hydroxide, ammonium hydroxide, monoethanolamine, diethanolamine and triethanolamine and mixtures thereof. The compositions according to the present invention also preferably include a cationic skin conditioning polymer. The cationic polymer is valuable in the compositions according to the present invention for providing the attributes of skin perception and improved application and rheology characteristics in the presence of the hydrophobically modified cellulose ether entity. The polymeric skin conditioning agent is preferably present at a level between about 0.01% and 5%, more preferably between about 0.05% and 3%, and particularly preferably between about 0.1% and 2% by weight. Suitable polymers are high molecular weight materials (weight average molecular weight determined as, for example, by light scattering, and which is generally between about 2,000 and 5,000,000, preferably between about 5,000 and 3,000,000 and more preferably between 100,000. and 1,000,000, approximately). Representative classes of polymers include cationic polysaccharides: cationic homopolymers and cationic copolymers derived from methacrylic and / or acrylic acid; cationic cellulose resins; cationic copolymers of di-ethyldiallylammonium chloride and acrylamide and / or acrylic acid; cationic homopolymers of dimethyldiallylammonium chloride; cationic ethoxypolyalkylene and polyalkylene imines; quaternized silicones and mixtures thereof. By way of example, cationic polymers suitable for use herein include cationic guar gums such as guar gum of hydroxypropyl trimethyl ammonium (ds 0.11 to 0.22) which is commercially available under the tradename Jaguar C-14-S (RTM) and Jaguar C-17 (RTM) and also Jaguar C-16 (RTM), which contains hydroxypropyl substituents (ds of between 0.8-1.1) in addition to the cationic groups specified above, and quaternized cellulose ethers commercially available under the names Ucare Polymer JR-30M, JR-400, Catanal (RTM) and Celquat. Other suitable cationic polymers are homopolymers of dimethyldiallylammonium chloride commercially available under the tradename Merquat 100, copolymers of dimethyl aminoethyl ethacrylate and acrylamide, copolymers of dimethyldiallylammonium chloride and acrylamide, which are commercially available under the names Merquat 550 and MerquatS, acid copolymers acrylic / dimethyldiallylammonium chloride / acrylamide which P427 ... »obtained with the name Merquat 3300, quaternized vinyl pyrrolidone acrylate or methacrylate copolymers of amino alcohols commercially available under the name Gafquat, for example Polyquaternium 11, 23 and 28 (quaternized copolymers of vinyl pyrrolidone and dimethyl amino methacrylate - Gafquat 755N and HS-100), copolymers of vinyl pyrrolidone / vinyl methoxychloride with the trade names Luviquat HM552, polyquaternium 2 and polyalkyleneimine such as polyethyleneimine and ethoxylated polyethyleneimine. The compositions herein may also comprise a polymeric, anionic or non-ionic thickener component, especially water-soluble polymeric materials having a molecular weight greater than about 20,000. By the term "water-soluble polymer" is meant the material which will form a substantially clear solution in water at a concentration of 1% at 25 ° C and the material will increase the viscosity of the water. Examples of water soluble polymers that may be used as an additional thickener component in the present compositions are hydroxyethylcellulose, hydroxypropyl cellulose, hydroxypropylmethyl cellulose, polyethylene glycol, polyacrylamide, polyacrylic acid, polyvinyl alcohol, polyvinyl pyrrolidone K-120, dextrans, example P427 grade 2P crude purified dextran obtained from D &O Chemicals, carboxymethyl cellulose, plant exudates such as acacia, gati and tragacanth, algae extracts such as sodium alginate, propylene glycol alginate and sodium carrageenan. Preferred additional thickeners for the compositions herein are natural polysaccharide materials. Examples of these materials are guar gum, locust bean gum and xanthan gum. Others that are suitable and preferred are hydroxyethyl cellulose having a molecular weight of 700,000. Additional polymeric thickening agents include copolymers of acrylic acid / ethyl acrylate and carboxyvinyl polymers sold by B.F. Goodrich Company with the commercial name of Carbopol resins. These resins consist essentially of a polymer of acrylic acid crosslinked with polyalkenyl polyether, soluble in water, in colloidal form, which is crosslinked with 0.75% to 2.00% of a crosslinking agent, such as for example polyallyl sucrose or polyallyl pentaerythritol. Examples include Carbopol 934, Carbopol 940, Carbopol 950, Carbopol 980, Carbopol 951 and Carbopol 981. Carbopol 934 is a water-soluble acrylic acid polymer crosslinked with about 1% of a polyallyl ether of sucrose having an average of approximately 5.8 of alilo groups P427 for each molecule of sucrose. Also suitable for use herein are hydrophobically modified crosslinked polymers of acrylic acid having antipathetic properties available under the tradenames Carbopol 1382, Carbopol 1342 and Pelen TR-1 (CFTA Designation: Crosslinked Polymers Acrylates / 10-30 Alkyl Acrylates). A combination of acrylic acid polymers crosslinked with polyalkylene polyether and hydrophobically modified crosslinked acrylic acid polymer is also suitable for the present. The polymeric thickener components, if present in the compositions of the invention, are at a level between 0.3% and 5.0%, preferably between 0.4% and 3.0% by weight. Other additional thickening agents suitable for use herein include esters of ethylene glycol or polyethylene glycol of a fatty acid having from about 16 to 22 carbon atoms and up to 7 ethyleneoxy units, preferably ethylene glycol stearates, both mono and distearates, but in particular distearates containing less than about 7% of the mono stearate, fatty acid alkanolamides, having between 16 and 22 carbon atoms, preferably between 16 and 18 carbon atoms such as stearic monoethanolamide, stearic diethanolamide, stearic onoisopropanolamide and P427 stearic monoethanolamide, alkyl (C16 ~ C22) dimethyl amine oxides such as stearyl dimethyl amine oxide and electrolytes such as magnesium sulfate and sodium chloride salts. A preferred feature of the compositions of the present invention is a solubilizing agent for the hydrophobically modified cellulose ether. The solubilizing agent is valuable in limiting the aggregation of the cellulose ether, possibly by interacting around the hydrophobic pendent chains on the polymeric entities. The solubilizing agent is preferably present at a level between about 0.1% and 10%, more preferably between about 0.5% and 5%, and most preferably between about 1% and 4% by weight. The ratio of the hydrophobically modified cellulose ether to the solubilizing agent is in the range of from about 0.1: 10 to 0.2: 5, preferably from about 0.3: 5 to 0.4: 1. Suitable solubilizing agents include water soluble polyols. Water-soluble polyols having molecular weights of between about 40 to 2000, more preferably between about 50 to 500 and more preferably between about 58 to 200, and multiple hydroxyl groups are preferred. The multiple hydroxyl groups are defined herein as P427 those that are between 2 to 6 hydroxyl groups. The water soluble polyols which are suitable for inclusion as solubilizing agents herein are selected from: glycerin, propylene glycol, hexylene glycol, mannitol, polyethylene glycol, sorbitol, polyethylene glycol ethers and methyl glycol propylene glycol (e.g. ethyl glucam E-20 and propylglucam P-10), ethers of polyethylene glycol and propylene glycol of lanolin alcohol (for example Solulan-75) and mixtures thereof. The most preferred solubilizing agents for use herein are glycerin and propylene glycol. The mild surfactants suitable for inclusion in compositions according to the present invention can be selected from anionic, nonionic, amphoteric and zwitterionic surfactants and mixtures thereof. The total level of surfactant is preferably between about 5% and 60%, more preferably between about 6% and 40%, and especially between about 8% and 35% by weight. The compositions preferably comprise a mixture of anionic surfactants with zwitterionic and / or amphoteric surfactants. The level of the anionic, zwitterionic and amphoteric surfactant components, when present, is in the range of between about 1% and 15%, especially between about 2% and 13% by weight of the composition, P427 while the level of the nonionic surfactant, when present, is in the range of between about 0.1% and 20% by weight, preferably between about 0.5% and 16%, more preferably between about 1% and 12% by weight weight. The weight ratio of the anionic: zwitterionic and / or amphoteric surfactant is in the range of from about 1: 2 to about 6: 1. Other suitable compositions within the scope of the invention comprise mixtures of anionic, zwitterionic and / or amphoteric surfactants with one or more nonionic surfactants. Preferred for the use herein are the soluble or dispersible nonionic surfactants which are selected from animal and vegetable ethoxylated fats and oils and mixtures thereof, sometimes referred to as nonionic surfactants "derived from oils." The anionic surfactants. Suitable for inclusion in the compositions of this invention can, in general, be described as mild synthetic detergent surfactants and include ethoxylated alkyl sulphates, alkyl glyceryl ether sulphonates, methyl acyl taurates, fatty acyl glycinates, N-acyl glutamates, acyl isethionates, sulfosuccinates of alkyl, alpha-sulphonated fatty acids, their salts and / or esters, alkyl ethoxy carboxylates, alkyl phosphate esters, alkyl phosphate esters ethoxylates, acyl sarcosinates and condensates P427 fatty acid / protein, and mixtures thereof. The alkyl and / or acyl chain lengths for these surfactants are C8-C22 preferably C10 ~ c18 'Y most preferably C12 ~ c14 * It is preferred for use herein in terms of the characteristics of optimum sudsing and softness formation, the salts of the sulfuric acid esters of the reaction product of one mole of higher fatty alcohol and between about 1 and 12 moles of ethylene oxide, the preferred counterions being sodium and magnesium. Particular preference is given to alkyl sulphates containing from 2 to 6, preferably from 2 to 4 moles of ethylene oxide, for example, laureth-2 sodium sulfate laureth-3 sodium sulfate and laureth-3,6 magnesium sulfate and sodium. In preferred embodiments, the anionic surfactants contain at least about 50%, especially at least about 75% by weight, of ethoxylated alkyl sulfate. The compositions which are used herein and are suitable also contain an amphoteric surfactant. Suitable amphoteric surfactants that are used in the compositions of the invention include: (a) imidazolinium surfactants of the formula (I) P427 wherein R is alkyl or alkenyl of C7 to C22 / R2 is hydrogen or CH2Z, and each Z is independently C02M or CH2C02M, and M is H, alkali metal, alkaline earth metal, ammonium or alkanolammonium; and / or ammonium derivatives of the formula (II) C2H4OH 1C0NH (CH2) 2 + CH22 R2 wherein R ^ and R and Z are as defined above; (b) aminoalkanoates of the formula (III) R1NH (CH2) nC02M iminodyalkanoates of the formula (IV) R1N [(CH2) mC02M] 2 and iminopolyalkanoates of the formula (V) R1_ [N (CH2) p] qN [CH2C02M] 2 CH2C02M wherein n, m, p, and q are numbers from 1 to 4, and R and M are independently selected from the groups specified above; and (c) mixtures thereof. Suitable amphoteric surfactants of the type (a) they are marketed under the names Miranol and Empigen and are understood to comprise a complex mixture of species. Traditionally, Miranoles have been described with formula I, although the CTFA Cosmetic Ingredient Dictionary, 3a. Edition indicates the non-cyclical structure II, while the 4th. The edition still indicates another structural isomer where R2 is bound to O instead of N. In practice, a complex mixture of cyclic and non-cyclic species most likely exists and the two definitions are given here to give more information. The use of the non-cyclic species is preferred here. Examples of suitable amphoteric surfactants of type (a) include compounds of the formulas I and / or II in which R ^ is C8H17 (especially iso-capryl), C9H19 alkyl C? 23- Especially preferred are compounds wherein R ^ is CgH ^ g, Z is C02M and R2 is H; the compounds wherein R ^ is CnH23, Z is C0 M and R2 is CH2C0 M; and the compounds wherein R is C ^ H23, Z is C02M and R2 is H. In the CTFA nomenclature suitable materials that are used in the present invention include cocoanfocarboxipropionate, cocoanfocarboxypropionic acid and especially cocoamphoacetate and cocoamphodiacetate (otherwise they are called cocoanfocarboxiglycinate). Specific commercial products include those sold under the tradenames Ampholak 7TK (sodium carboxymethyl seba propyl amine), E and CDR60 60 (Albright &Wilson), Miranol H2M Conc. Miranol C2M Conc. N.P., Miranol C2M Conc. O.P., Miranol C2M SF, Miranol CM Special (Rhone-Poulenc); Alkateric 2CIB (Alkaril Chemicals); Amphoterge W-2 (Lonza, Inc.); Monateric CDX-38, Monateric CSH-32 (Mona Industries); Rewoteric AM-2C (Rewo Chemical Group); and Schercotic MS-2 (Scher Chemicals). It will be understood that a number of commercially available amphoteric surfactants of this type are manufactured and sold in the form of electroneutral complexes with, for example, hydroxide counter-ions or with sulphonate or anionic sulfate surfactants, especially those of CQ-C alcohol. sulfated, ethoxylated alcohol of c8-c18 or acyl glycerides of C8-C18. However, from the standpoint of product stability and softness, compositions that are essentially free of sulfated (non-ethoxylated) alcohol surfactants are preferred. Note also that the proportions by weight and the concentrations of the amphoteric surfactants herein are based on the non-complex forms of the eurfactants, any counterion of anionic surfactant is considered as part of the content of the overall anionic surfactant component. Examples of the preferred amphoteric surfactants of type (b) include N-alkyl polytrimethylene poly-, carboxymethylamines sold under the tradenames Ampholak X07 and Ampholak 7CX by Berol Nobel and also the salts, especially triethanolammonium salts and salts of the acid N-lauryl-beta-amino propionic acid and N-lauryl-imino-dipropionic acid. These materials are sold under the trade name Deriphat by Henkel and Maritaine for Rhone-Poulenc. The compositions herein may also contain from about 0.1% to 20%, more preferably between about 0.1% and 10%, and especially between about 1% and 8% of a zwitterionic surfactant. Suitable betaine surfactants for inclusion in cleaning compositions include alkyl betaines of the formula R5R6R7N + (CH2) nC02M (VI) and amido betaines of the formula (VII) R6 I R5C0N (CH2) pN (CH2) nC02M 'l wherein R 5 is alkenyl and C 2 to C 22 alkyl, R 6 and R 7 are independently C 1 to C 3 alkyl, M is H, alkali metal, alkaline earth metal, ammonium or alkanolammonium, and n, are each numbers from 1 to 4 Preferred betaines include cocoamidopropyl dimethylcarboxymethyl betaine, lauryl idopropyl dimethylcarboxymethylbetaine and Tego betaine. The compositions of the invention preferably also contain between about 0.1% and 20%, preferably between about 1% and 15%, and more preferably between about 2% and 10% by weight of a nonionic surfactant derived from oil or mixture of nonionic surfactants derived from oils. The nonionic surfactants derived from oils are valuable in the compositions of the invention for providing benefits to the perception of the skin, both during use and later. The nonionic surfactants derived from oil which are suitable for the present include emollients derived from animals and plants, soluble in water, such as triglycerides with an inserted polyethylene glycol chain; ethoxylated mono- and di-glycerides, polyethoxylated lanolins and ethoxylated fat derivatives. A preferred class of oil-derived nonionic surfactants which is used herein has the general formula (VIII) II RC0CH2CH (OH) CH2 (OCH CH) n ° H wherein n ranges from about 5 to 200, preferably from about 20 to 100, more preferably from about 30 to 85, and wherein R comprises an aliphatic radical having an average of between about 5 to 20 carbon atoms, preference between about 7 to 18 carbon atoms. Suitable ethoxylated fats and oils of this class include polyethylene glycol derivatives of glyceryl cocoate, glyceryl caproate, glyceryl caprylate, glyceryl seboate, glyceryl palmate, glyceryl stearate, glyceryl laurate, glyceryl oleate, glyceryl ricinoleate, and glyceryl fatty esters derived from triglycerides. , such as palm oil, almond oil and corn oil, preferably glyceryl seboato and glyceryl cocoate. Suitable oils derived from nonionic surfactants of this kind are available from Croda Inc. (New York, USA) under the name of the Crovol line of materials such as Crovol EP40 (PEG 20 enlistment glyceride), Crovol EP 70 (PEG 60). Enterode glyceride), Crovol A-40 (PEG 20 almond glyceride), Crovol A-70 (PEG 60 almond glyceride), Crovol M-40 (PEG corn glyceride), Crovol M-70 (PEG 60 corn glyceride ), Crovol PK-40 (PEG 12 palm seed glyceride), and Crovol PK-70 (PEG 45 palm seed glyceride) and on its Solan range of materials such as Solan E, E50 and X, polyethoxylated lanolins and Aqualose L-20 (PEG 24 alcohol of lanolin) and Aqualosa W15 (PEG alcohol of lanolin) obtained from Westbrook Lanolin. Other suitable surfactants of this class are commercially available from Sherex Chemical Co.

P427 (Dublin, Ohio, USA) with the name of the Varonic Ll line of surfactants. These include, for example, Varonic Ll 48 (polyethylene glycol glyceryl seboate (n = 80), alternatively referred to as glyceryl seboate PEG 80), Varonic Ll 2 (glyceryl seboate PEG 28), Varonic LI420 (glyceryl seboate PEG 200), and Varonic Ll 63 and 67 (glyceryl cocoatos PEG 30 and PEG 80). Other emollients derived from oil which are suitable for use as PEG derivatives of corn, avocado and babasa oil as well as Softigen 767 (PEG (6) caprylic / capric glycerides). Also suitable for use herein are nonionic surfactants derived from composite vegetable fats extracted from the fruits of the Butirosperm tree (Butyrospermum Karkii Kotschy) and derivatives thereof. This vegetable fat, known as galam or bambara butter, is widely used in Central Africa for a variety of media such as soapmaking and the development of barrier creams, and is marketed by Sederma (78610 Le Perray En Yvelines, France). Particularly suitable are the ethoxylated derivatives of galam butter available from Karishamn Chemical Co. (Columbos, Ohio, USA) in its Lipex range of chemical agents, such as Lipex 102 E-75 and Lipex 102 E-3 (mono- and di- ethoxylated glycerides from Manteca de Galam). Similarly, the ethoxylated derivatives of Mango, Cocoa and butter of ilipé or mahua can be used in compositions according to the invention. Although these are classified as non-ionic ethoxylated surfactants, it is understood that a certain proportion can be left as non-ethoxylated vegetable fats or oils. Other oil-derived nonionic surfactants that are suitable include the ethoxylated derivatives of almond oil, peanut oil, rice bran oil, wheat germ oil, linseed oil, jojoba oil, apricot kernel oil, walnuts , palm kernels, pistachios, sesame seeds, rapeseed oil, juniper oil, corn oil, peach kernel oil, poppy oil, pine oil, castor oil, soybean oil, avocado oil, oil of safflower, coconut oil, hazelnut oil, olive oil, grape seed oil and sunflower seed oils. The oil-derived nonionic surfactants that are most preferred for the present, from the point of view of the optimal characteristics of skin perception and softness are Lipex 102-3 (RTM) (ethoxylated derivatives PEG-3 of Manteca de Galam or Ba bara) and Softigen 767 (RTM) (caprilic / capric glycerides from PEG-6). In addition to the above-mentioned oil-derived nonionic surfactants, the compositions of the invention P427 may also comprise auxiliary nonionic surfactants at levels between about 0.1% and 20%, more preferably between about 0.1% and 10%, and most preferably between 1% and 8%, by weight. Surfactants of this class include diethanolamides and C 12 to C 14 fatty acid mono-ethanolamides, sucrose polyester surfactants and polyhydroxy fatty acid amide surfactants having the general formula (IX). 0 q i | i * Rg-C-N - Z2 Preferred N-alkyl, N-alkoxy or N-aryloxy, polyhydroxy fatty acid amide surfactants according to formula (IX) are those wherein R8 is C5-C31 hydrocarbyl, preferably Cg-C17 hydrocarbyl inclusive alkenyl and straight and branched chain alkyl, or mixtures thereof and Rg is hydroxyalkyl or C ^ to C8 alkyl typically, preferably methyl or a group of the formula -RY-0-R2 wherein R1 is C2 hydrocarbyl C8 inclusive of straight chain, branched and cyclic chain (including aryl) and preferably is C2 to C4 alkylene, R2 is straight chained, branched chain cyclic hydrocarbyl of C ^ to C8 including aryl and oxyhydroxycarbyl and is preferably C.sub.4 to C.sub.4 alkyl, especially methyl or phenyl. Z2 is a polyhydroxyhydrocarbyl entity having a hydrocarbyl chain Linear P427 with at least 2 (in the case of glyceraldehyde) or at least 3 hydroxyl (in the case of other reducing sugars) directly connected to the chain or an alkoxylated derivative (preferably ethoxylated or propoxylated) thereof. Z will preferably be derived from a reducing sugar in a reductive amination reaction, more preferably Z2 is a glycityl entity. Suitable reducing sugars include glucose, fructose, maltose, lactose, galactose, mannose and xylose, as well as glyceraldehyde. As raw materials, high dextrose corn syrup, high fructose corn syrup and high maltose corn syrup, as well as the above-mentioned individual sugars can be used. These corn syrups can give a mixture of sugar components for Z2. It should be understood that for no reason is it intended to exclude other suitable raw materials. Z2 will preferably be selected from the group consisting of -CH- (CHOH) n -CH0H, -CH (CH2OH) - (CHOH) n_1-CH2H, CH2 (CHOH) 2 (CHOR ') CHOH) -CH20H, wherein n is an integer from 1 to 5, inclusive, and R1 is H or a cyclic mono- or poly-saccharide, and alkoxylated derivatives thereof. As noted, the most preferred are glycityls wherein n is 4, particularly -CH2- (CHOH) 4-CH20H. The most preferred polyhydroxy fatty acid amide P427 has the formula R8 (CO) N (CH3) CH2 (CHOH) 4CH2OH wherein R8 is an alkenyl group or straight chain alkyl of C7 to C17. In compounds of the above formula, R8-CO-N < it can be, for example, cocamide, stearamide, oleamide, laura ida, miristamide, capricamide, ida palmia, seboamide, etc. A preferred process for the preparation of the above compounds having the formula (IX), comprises reacting a triglyceride of fatty acid with an N-substituted polyhydroxy amine in the substantial absence of lower alcoholic solvents (C1-C4), but preferably with an alkoxylated alcohol or alkoxylated alkyl phenol such as NEODOL and using an alkoxide catalyst at temperatures between about 50 ° C to about 140 ° C, to give high yields (90-98%) of the desired products. The compositions of the invention may also include a cosmetic oil or insoluble perfume or insoluble wax or a mixture thereof at a level of up to about 10%, preferably up to about 3%, wherein the oil or wax is insoluble in the sense of being insoluble in the product matrix at a temperature of 25 ° C. The addition of these oils or waxes can provide emolliency, softness and rinsing ease characteristics for P427 personal cleansing compositions according to the invention. It is a particularity of the invention that the compositions have excellent emolliency and softness properties together with desired physical attributes (clarity, etc.) that can be supplied with an essentially oil-free characteristic, ie containing less than about 1%, preferably less than 0.5% by weight of an added oil phase. Physically, preferred compositions of this type take the form of an optically clear solution or an optically clear microemulsion. In compositions that include a cosmetic oil or additional perfume or wax, preferably the weight ratio of the nonionic surfactant derived from oil to the added oil is at least 1: 2, more especially at least 3: 1. Suitable insoluble cosmetic oils as well as the waxes used herein may be selected from water-insoluble silicones, including non-volatile polyaryl and polyalkyl siloxane fluids and gums, linear and volatile cyclic polyalkylsiloxanes, polyalkoxylated silicones, silicones modified with quaternary ammonium and amino, rigid reinforced and crosslinked silicones and mixtures thereof, C? -C24 esters of C8 to C3Q fatty acids such as isopropyl myristate, myristyl myristate and cetyl ricinoleate, esters of P427 C8 to CQ of benzoic acid, beeswax, saturated and unsaturated fatty alcohols such as behenyl alcohol, hydrocarbons such as mineral oils, squalene of petrolatum and squalene, polybutene, fatty sorbitan esters (refer to document US-A-3988255, Seiden , granted on October 26, 1976), lanolin derivatives similar to oils and lanolin, animal and vegetable triglycerides such as almond oil, peanut oil, wheat germ oil, rice bran oil, linseed oil, oil jojoba, apricot kernel oil, walnuts, palm kernels, pistachios, sesame seeds, rapeseed oil, juniper oil, corn oil, peach kernel oil, poppy oil, pine oil, castor oil, soybean oil, avocado oil, coconut oil, hazelnut oil, olive oil, grape seed oil and sunflower seed oils and C to C24 esters of dimeric and trimeric acids such as diisopropyl dim erato, diisostearyl malate, diisostearyldimerate and triisostearyltrimetrate. The viscosity of the final composition (Brookfield RVT DCP, 1 rpm with Cone CP41 or CP52, 25 ° C, clean) is preferably at least about 500 cps, more preferably about 1,000 and 50,000 cps, especially between about 4,000 and 30,000 cps, and P427 more especially between approximately 4,000 and 15,000 cps. Cleaning compositions may optionally include other humectants for hair and skin that are soluble in the matrix of the cleaning composition. The preferred level of these humectants is between about 0.5% and 20% by weight. In preferred embodiments, the humectants are selected from the essential amino acid compounds naturally occurring in the stratum corneum of the skin and which are water soluble, non-polyol and non-occlusive, and mixtures thereof. Some examples of the most preferred non-occlusive humectants are polybutene, squalene, sodium pyrrolidone carboxylic acid, lactic acid, L-proline, guanidine, pyrrolidone, hydrolyzed protein and other proteins derived from collagen, aleo vera gel, MEA acetamide and LMEA and mixtures thereof. The compositions according to the present invention can include an opacifying or a pearlescent agent. These materials can be included in levels of from about 0.01% to 5%, preferably between about 0.2% and 1.3% by weight. A suitable opacifier that is included in the compositions herein is the dispersion polystyrene that is available under the trade name Lytron 621 & 631 (RTM) by Morton P127 International. Additional opacifiers / peel-offers suitable for inclusion in the compositions of the invention include: titanium dioxide, Ti0; EUERLAN 810 (RTM); TEGO-PEARL (RTM); long chain acyl derivatives (C 16 -C 2) such as glycol esters or fatty acid polyethylene glycol having from about 16 to 22 carbon atoms and up to 7 ethyleneoxy units; fatty acid alkanolamides having from about 16 to 22 carbon atoms, preferably from about 16 to 18 carbon atoms such as stearic monoethanolamide, stearic diethanolamide, stearic monoisopropanolamide and stearic monoethanolamide and alkyl (cy6 ~ c22) dimethyl oxides amine as stearyl dimethyl amine oxide. In preferred compositions the opacifier / polish is present in the form of crystals. In the most preferred compositions the opacifier / peel off agent is a particulate polystyrene dispersion having a particle size of from about 0.05 microns to about 0.45 microns, preferably from about 0.17 microns to about 0.3 microns, these dispersions are preferred from the point of view. view to provide optimal rheology and shear thinning behavior. They are even more especially preferred P427 Styrene PVP copolymer and Lyton 631 (RTM). Additional optional materials may be added to the cleaning compositions, each at a level of between about 0.1% to 2% by weight. These materials include proteins and polypeptides and derivatives thereof; solubilisable or water-soluble preservatives such as DMDM Hydantoin, Germall 115, methyl, ethyl, propyl and butyl esters of hydroxybenzoic acid, EDTA, Euxyl (RTM) K400, natural preservatives such as benzyl alcohol, potassium sorbate and bisabalol; sodium benzoate and 2-phenoxyethanol; other wetting agents such as hyaluronic acid, chitin and sodium polyacrylates grafted with starch such as Sanwet (RTM) IM-1000, IM-1500 and IM-2500 obtained from Celanese Superabsorbent Materials, Portsmith, VA, USA and described in US-A -4, 076, 663; solvents; antibacterial agents such as Oxeco (phenoxy isopropanol); low temperature phase modifiers as sources of the ammonium ion or (for example NH4Cl); viscosity control agents such as magnesium sulfate and other electrolytes; coloring agents, mica coated with Ti02 and Ti02; perfumes and perfume solubilizers; zeolites such as Valfour BV400 and derivatives thereof and Ca2 + / Mg2 + sequestrants such as polycarboxylates, amino polycarboxylates, polyphosphonates, amino polyphosphonates, etc. Water is also present at a preference level of from P427 about 15% to about 94.98%, preferably about 40% to about 90%, more preferably at least about 65%, by weight of the compositions herein. The pH of the compositions is preferably from about 4 to about 10, more preferably from about 6 to about 9, and especially from about 5 to 6. The invention is illustrated by the following non-limiting examples. In the examples, all concentrations are given based on 100% active and the abbreviations have the following designations: Amphoteric Cocoanfodiacetate Anionic 1 Laureth-3 sodium sulfate Anionic 2 Lauroyl sarcosinate sodium Non-ionic Gael butter PEC-3 Crovol Crovol EP 70 (triglycerides of enotera PEG 60) GA Polyhydroxy fatty acid amide of the formula IX wherein R 8 is C 7 C 17 alkyl, R 9 is methyl, and Z 2 is CH 2 (CHOH) 4 CH 2 OH HMHEC Cetyl modified hydroxyethyl cellulose having a substitution non-ionic of between about 0.4 and 0.6 and a degree of ethoxylation of between about 2.2 and 2.8 - Polysurf 67 (RTM).

Polymer 1 Polymer JR-30 (RTM) -hydroxyethylcellulose reacted with epichlorohydrin and quaternized with trimethylamine, molecular weight 4 x 106 Polymer 2 Gafquat 755N Preservative Phenoxyethanol / sodium benzoate / EDTA (4: 2: 1) Aperlant Ethylene glycol distearate / emulsifier, mixture of these Opacifying Lytron 631 (RTM) Oil Soy Oil Softigen 767 Caprylic / capric glycerides PEG (6) Examples I to VI The following are personal care cleansing compositions in the form of bath gels or bath foam products that are representative of the present invention: I II III IV V VI Amphoteric 3.0 3.0 - 5.0 - 4.0 Anionic 1 6.0 6.0 13.0 10.0 6.0 4.0 Anionic 2 1.0 2.0 2.0 2.0 1.0 - GA 3.0 - - 3.0 3.0 - Oil - 4.0 - 6-0 4.0 - Softigen 767 - 1.0 - 2.0 2.0 - Non ionic - 0.4 - 1.0 - 0.3 Crovol - - 1.0 - - 3.0 HMHEC 0.3 0.4 0.5 0.1 0.3 0.3 5 Polymer 1 0.8 1.0 - 0.2 0.8 - Polymer 2 - - 0.5 - - 0.2 Glycerin 1.0 3.0 1.0 2.0 1.5 5.0 Aperlante - - - 3.0 1.0 1.0 Opacifying 0.2 0.3 0.4 - - - Conservative 0.5 0.5 0.5 1.0 1.0 1.0 Perfume 1.0 1.0 1.0 1.0 1.0 1.0 Stearate of - - 0.8 - - 1.0 Zinc Aaua to 100-- ' Compositions I to VI were prepared by first dispersing the polymeric rheology modifier, soluble in water in colloidal form, or soluble in water, in water at 25 ° C, either in a Tri- (RTM) mixer or by prolonged stirring before neutralization with NaOH or alternatively mixing with a base and by hydration. Examples II, IV and VI show that the mixture can be heated to about 50 ° C to improve the efficiency of the dispersion. Subsequently the solubilizing agent is added continuing the agitation. Surfactants and other skin care agents can be added together with the remaining oil-insoluble, water-soluble ingredients. In compositions comprising water-insoluble ingredients, an oil phase B is formed from the oil-soluble ingredients which are then mixed with A at room temperature. The polymer dispersion is then added to the room temperature mixture and finally the remaining water, the preservative, the opacifier and the perfume are added. The products provide excellent efficiency benefits during use, including softness, skin conditioning, skin moisturization, stability, rheology, application characteristics, cleaning, "foam formation and easy rinsing.

Claims (19)

1. CLAIMS 1. A personal care cleansing composition comprising: (a) from about 5% to about 60% by weight of a water-soluble surfactant selected from anionic, non-ionic, and amphoteric surfactants and mixtures of the same; (b) from about 0.01% to about 10% by weight of a non-ionic, hydrophobically modified cellulose ether selected from methyl, hydroxyethyl and hydroxypropyl cellulose ethers modified with C10-C24 alkyl and alkenyl < 3 they have a degree of non-ionic substitution in the range of between about 1.8 and 4, and a degree of hydrophobic substitution in the range of between about 0.1% and 1% by weight; (c) from about 0% to about 10% by weight of a water soluble polyol; (d) from about 0.01% to about 5% by weight of a polymeric and cationic type skin conditioning agent; and (e) water. and wherein the composition exhibits a shear stress of about 150 Pa at a rate of shear in the range of about 100-1 to 600s-1 at 25 ° C. P427
2. 2. A composition according to claim 1, wherein the hydrophobically modified cellulose ether is selected from hydroxyethyl cellulose derivatives having a degree of nonionic substitution in the range of between about 2.0 and 3.0 and a degree of hydrophobic substitution in the range of approximately 0.3% and 0.8% by weight.
3. 3. A composition according to claim 2, wherein the hydrophobically modified cellulose ether is selected from C14-C18 alkyl and alkenyl modified hydroxyethylcelluloses having a degree of non-ionic substitution within the range of between about 2.2 and 2.8. , and a degree of hydrophobic substitution in the range of between 0.4 to 0.6.
4. 4. A composition according to claim 1, wherein the water soluble polyol has a molecular weight in the range of between about 40 and 200, and between about 2 and 6 hydroxyl groups.
5. A composition according to claim 4, wherein the water-soluble polyol is selected from glycerin, propylene glycol, polyethylene glycol, polypropylene glycol, sorbitol and mixtures thereof.
6. 6. A composition according to claim 1, wherein the composition has a viscosity (Brookfield RVT DCP, 1 rpm with Cone CP41 or CP52, 25 ° C, clean) in the P427 range from 1,000 to 50,000 cps.
7. A composition according to claim 1, wherein the polymeric skin conditioning agent has a weight average molecular weight in the range of from about 2,000 to 5,000,000, preferably from about 5,000 to 3,000,000.
8. 8. A composition according to claim 1, wherein the polymeric skin conditioning agent is selected from cationic polysaccharides; cationic and nonionic homopolymers and copolymers derived from acrylic and / or methacrylic acid; cationic and nonionic cellulose resins; cationic copolymers of dimethylthyl ammonium chloride and acrylic acid; cationic homopolymers of dimethyldiallylammonium chloride; cationic ethoxypolyalkylene and polyalkylene imines; quaternized silicones and mixtures thereof.
9. 9. A composition according to claim 1, comprising a mixture of anionic surfactants with zwitterionic and / or amphoteric surfactants and wherein the level of the individual components of anionic, zwitterionic and amphoteric surfactant is in the range of about 1% to 15%. %, preferably between about 2% to 13% by weight.
10. 10. A composition according to claim 1, comprising from about 0.1% to about 20% P427 by weight of the nonionic surfactant selected from ethoxylated oils or fats having the formula (VIII) II RCOCH2CH (OH) CH2 (OCH2CH2) n0H wherein n is from about 5 to 200, preferably from about 20 to 100, more preferably from about 30 to 85, and wherein R comprises an aliphatic radical having an average of between about 5 to 20 carbon atoms, preferably between about 9 to 20 carbon atoms, more preferably between about 11 to 18 carbon atoms, still with greater preference between about 12 to 16 carbon atoms.
11. 11. A composition according to claim 1, wherein the anionic surfactant is selected from ethoxylated alkyl sulphates, alkyl glyceryl ether sulfonates, methyl acyl taurates, fatty acyl glycinates, alkyl ethoxy carboxylates, N-acyl glutamates, acyl isethionates, alkyl sulfosuccinates, acids alpha-sulfonated fatty acids, their salts and / or their esters, alkyl phosphate esters, alkyl phosphate ethoxylated esters, acyl sarcocinates and fatty acid / protein condensates, and mixtures thereof.
12. 12. A composition according to claim 11, wherein the anionic surfactant comprises an ethoxylated C8-C22 alkyl sulfate. P427
13. 13. A composition according to claim 1, wherein the amphoteric surfactant is selected from: (a) imidazolinium derivatives of the formula (I) N wherein R ^ is alkyl or alkenyl of ^ -? - ^ - 22 'R2 is hydrogen or CH2Z, each Z is independently C02 or CH2C02M, and M is H, alkali metal, alkaline earth metal, ammonium or alkanolammonium; and / or ammonium derivatives of the formula (II) C2K4OH RjCONH (CH2)? N + CH2Z * 2 wherein R ^ and R and Z are as defined above; (b) aminoalkanoates of the formula (III) R1NH (CH2) nC02M iminodyalkanoates of the formula (IV) R1N [(CH2) mC02M] 2 and iminopolyalkanoates of the formula (V) R1_ [N (CH2) n] qN [CH2C02M] 2 CH2C02M where n, m, p, and q are numbers from 1 to 4, and R1 P427 and M are independently selected from the groups specified above; and (c) mixtures thereof.
14. 14. A composition according to claim 13, wherein the amphoteric is selected from imidazolinium derivatives of the formula I and / or ammonium derivatives of the formula II.
15. 15. A composition according to claim 1, wherein the weight ratio of the anionic surfactant: zwitterionic and / or amphoteric surfactant is in the range of from about 1: 2 to about 6: 1.
16. 16. A composition according to claim 1, wherein the anionic, zwitterionic and amphoteric surfactants together comprise between about 8% to about 35%, preferably between about 10% and 30% by weight of the composition.
17. 17. A composition according to claim 1, further comprising between about 0.1% to about 20% by weight of an auxiliary nonionic surfactant selected from polyhydroxy fatty acid amide surfactants and from C12-C1 fatty acid mono- and diethanolamide.
18. 18. A composition according to claim 1, further comprising up to about 20% by weight of perfume or cosmetic oil. P427
19. 19. A composition according to claim 1 to 18, further comprising an added humectant of sodium pyrrolidone carboxylic acid, L-proline and mixtures thereof.