MXPA01006118A - Detergent composition - Google Patents

Abstract

An aqueous liquid cleansing and moisturising composition comprising:a) a surface active agent selected from anionic, nonionic, zwitterionic and cationic surface active agents, soap and mixtures thereof;b) a benefit agent;and c) a cationic polymer characterised in that the cationic polymer is present in the composition at levels of 0.05-3.0%by weight, and that the benefit agent is present in the neat composition as aggregated particles.

Description

COMPOSITION OF DETERGENT The present invention relates to detergent compositions suitable for topical application for cleaning and improving the condition of the human body, in particular for moisturizing skin, hair, nails and other epithelial tissues, including mucous membranes. In particular, it relates to compositions that are formulated to give a gentle cleansing and conditioning of the skin, and improved depuration of benefit agents. The compositions formulated to clean the skin are well known. It is also known to formulate products that provide both a cleaning and wetting benefit. For example, WO 90/13283 discloses a composition comprising an acyl ester of a salt of stepionic acid, a long chain fatty acid, a humectant component and, optionally, soap. One of the problems that can be encountered with such dual-purpose compositions is that they contain either an insufficient level of wetting component, or that an insufficient amount is deposited on the use. In particular, in the context of the second problem, insufficient deposition means that a large proportion of the benefit agent that is in the composition is wasted. WO 95/2231 1 describes a composition containing a surfactant, a benefit agent and a cationic deposition polymer. WO 94/01084 describes a composition containing a surfactant and from about 0.5% to about 5% petrolatum.

This document also mentions that the composition may include as an optional component, a cationic polymer as a thickening agent.

We have found that one way to formulate such compositions, so that they can deliver effective wetting, conditioning and / or skin protection, and also a way to deliver benefit agents in a more efficient manner. Thus, according to a first aspect of the invention, there is provided a liquid, aqueous, wetting and cleaning composition comprising: a) an active surface agent selected from anionic, nonionic, zwitterionic and cationic surface active agents , soap and mixtures thereof; b) a benefit agent; and c) a cationic polymer characterized in that the cationic polymer is present at levels of 0.05-3% by weight, and that the benefit agent is present in the pure composition as aggregated particles. The compositions according to the invention are preferably slimming at cutting. An advantage of the compositions according to the present invention is that they lead to improved deposition of beneficial agents of an aqueous liquid composition, containing surfactant, during use. Surprisingly, we have found in compositions according to the invention, that the skin benefit agent particles form aggregates, which comprise a variety of individual particles. The aggregates characterizing the compositions according to the invention comprise 5-5000 individual particles of the benefit agent. Without wishing to link to a theory, it is suspected that the compositions comprising these aggregated particles, which remain in this form and do not conglutinate, serve to deliver relatively large aggregates of the benefit agent to the substrate, which provides a high effective local concentration. of the benefit agent, thus intensifying the wetting benefit to the substrate and also the overall delivery efficiency of the benefit agent. As such, the compositions according to the invention can usually comprise relatively high populations of relatively large aggregate particles. Accordingly, the compositions according to the invention may have, for example, an average individual particle size of less than 5 μm (5 microns), usually less than 1 μm (1 miera), but contain approximately 50% or less by weight of the benefit agent in the composition, in particles smaller than 3 μm (3 microns) in size. Typically, the composition may also comprise less than 10% by weight of the benefit agent in aggregate particles of more than 80 μm (80 microns) in size. The compositions according to the invention typically have more than 3% by weight of the benefit agent in aggregated particles with sizes in the range of 3-80 μm (3-80 microns). The compositions according to the invention also typically retain the aggregate microstructure during dilution in use, for example, when diluted by a factor of 10 with distilled water. As such, it has been found that compositions that have been diluted at ratios between 1: 1 and 1: 100 with water also retain the microstructure. The compositions according to the invention, which contain the aggregate particles described, preferably not only contain relatively high levels of the benefit agent, cationic polymer and contain aggregate particles of benefit agent, but can also be conveniently made in accordance with process aspects preferred. In the preferred process, it is important that the relatively high level of cationic polymer be dispersed sufficiently in the aqueous vehicle of the invention, so that the product will have a smooth appearance (ie, non-textured or lumpy). This can be quite difficult with the relatively high levels of cationic polymer in the composition, but nevertheless, it is within the skills of the skilled person. The following also represent preferred aspects of the manufacturing process of compositions according to the invention: a) The skin benefit agent should be prepared as a pre-emulsion, which is heated to 50-70 ° C. b) The surfactant components of the composition are prepared as a solution and the skin benefit agent pre-emulsions of a) are mixed in the surfactant solution. c) The cationic polymers are pre-dispersed in water in a controlled manner, so that the hydration rate of the cationic polymer is controlled if necessary. This can be done, for example, by dispersing the dry cationic polymer in a solution of pH of at least 10, preferably greater than 1 1, to control the hydration of the polymer, before dispersing it in the other components of the composition. The incomplete distribution of the cationic polymer is typified by a granular appearance of the composition, or the presence of undissolved polymer globules. Alternatively, the cationic polymer can be dispersed in a liquid, non-aqueous component of the composition, such as, for example, glycerol. However, in such a situation, the non-aqueous component must be present in the composition at sufficient and adequate levels, in order to provide a satisfactory, non-clumping dispersion of the cationic polymer, which will be satisfactorily dispersed in the aqueous vehicle. In any case, it is highly preferable that the cationic polymer be completely dispersed in the aqueous vehicle before it is completely hydrated. d) Following the sequence of steps a) - c) above, the remaining components of the composition, with the exception of perfume and preservatives, are mixed together and maintained at or around 50-70 ° C. The complete mixing is achieved, preferably, by subjecting the composition to high cut at this stage, but in such a way, that the aeration of the composition is avoided.; The high cut stage can normally take 20 minutes. e) Following the sequence of steps a) - d), the composition is cooled to 30 ° C, where the minor ones are added (for example, perfume, preservative), and the viscosity is modified by the addition of the viscosity modifying agent appropriate.

In any case, it is preferred that the cationic polymer used in the compositions according to the invention be at least partially hydrated when dispersed in the aqueous vehicle. If the cationic polymer is insufficiently hydrated, this can lead to insufficient aggregation of the droplets of benefit agent in the composition, whereas if the cationic polymer is excessively hydrated, in particular during its dispersion in the composition, it can prove to be difficult to disperse satisfactorily. The composition according to the invention is suitable for cleaning and "wetting", "conditioning" or "protecting" the skin. The benefit agent is included in the composition to moisturize, condition and / or protect the skin. By "benefit agent" means a substance that softens the skin (stratum corneum) and keeps it soft by slowing down the decrease in its water content and / or protects the skin. The benefit agent (s), which may be solid or liquid at room temperature, but for reasons of simplicity of the terminology herein, are referred to as "particles", are selected from a) silicone oils, gums and modifications of the same, such as linear and cyclic polydimethisiloxanes, amino oils, alkyl alkylaryl and aryl silicone; b) fats and oils that include natural fats and oils, such as jojoba, soybean, rice bran, avocado, almond, olive, sesame, persic, castor, coconut and mink oils; cocoa fat, beef tallow, lardo; hardened oils obtained by hydrogenating the aforementioned oils; and synthetic mono, di and triglycerides, such as myristic acid glyceride and 2-ethylhexanoic acid glyceride; c) waxes, such as carnauba, spermaceti, beeswax, lanolin and derivatives thereof; d) hydrophobic plant extracts; e) hydrocarbons, such as liquid paraffins, petrolatum, microcrystalline wax, ceresin, squalene, squalane and mineral oil; f) major fatty acids, such as lauric, myristic, palmic, stearic, behenic, oleic, linoleic, linolenic, lanolic, isostearic acid and polyunsaturated fatty acids (PUFA); g) higher alcohols, such as lauryl, cetyl, steryl, oleyl, behenyl alcohol, cholesterol and 2-hexadecanol; h) esters, such as cetyl octanoate, myristyl lactate, cetyl lactate, isopropyl myristate, myristyl myristate, isopropyl palmitate, isopropyl adipate, butyl stearate, decyl oleate, coiesterol isostearate, glycerol monostearate, glycerol distearate, glyceryl tristearate, alkyl lactate, for example, lauryl lactate, alkyl citrate and alkyl tartrate; i) essential oils, such as fish oils, mentha, jasmine, camphor, white cedar, bitter orange peel, ryu, turpentine, cinnamon, bergamot, citrus unshiu, acorn, pine, lavender, laurel, clove, hiba, eucalyptus, lemon, chicken milk, thyme, mint, rose, mugwort, menthol, cineol, eugenol, citral, citronella, borneol, linalool, geraniol, herb ass, camphor, thymol, spirantol, pinene, limonene and terpenoid oils; j) lipids, such as cholesterol, ceramides, sucrose esters and pseudo-ceramides, as described in the European patent specification no. 556 957; k) vitamins, such as vitamin A and E, and alkyl esters of vitamins, including those alkyl esters of vitamin C; I) sun blockers, such as octyl methoxyl cinnamate (Parsol MCX / trademark) and butyl methoxy benzoylmethane (Parsol 1789 / trademark); m) phospholipids; and n) mixtures of any of the above components. Where adverse interactions between the benefit agent and the surfactant are likely to be particularly acute, the benefit agent may be incorporated into the compositions of the invention in a carrier. In such situations, the carrier could be by itself a benefit agent, such as an oil. Such benefit agents include lipids; alkyl lactates; sunscreens, esters, such as isopropyl palmitate and isopropyl myristate; and vitamins. The carrier can be, for example, a hydrocarbon or silicone oil, which is not solubilized / micellized by the active surface phase and in which the benefit agent is relatively soluble. Particularly preferred benefit agents include silicone oils, gums and modifications thereof; esters, such as, palm itato and isopropyl myristate, and alkyl lactates.

The benefit agent is preferably present in an amount of from 1.0 to 50% by weight, most preferably from 4 to 25% by weight of the composition, more preferably 5-15%, even more preferably 5-1%. % by weight of the composition. An advantage of the composition according to the invention is that, during use, it deposits benefit agent on the skin at a level which results in a perceptible benefit. The surface active agent can be selected from any known surfactant suitable for topical application to the human body. Particularly preferred are the mild surfactants, ie, surfactants that do not damage the stratum corneum, the outer layer of the skin. Due to their foaming properties, anionic surfactants are highly preferred components of the compositions according to the invention. Where the composition contains an anionic surfactant, it is preferable that the composition also contain a co-surfactant, which may be a nonionic, cationic or zwitterionic surfactant. A preferred anionic detergent is fatty acyl isethionate of formula: RCO2CH2CH2SO3 [ where R is an alkyl or alkenyl group of 7 to 21 carbon atoms and M is a solubilizing cation, such as sodium, potassium, ammonium or substituted ammonium. Preferably, at least three quarters of the RCO groups have 12 to 18 carbon atoms and can be coconut, palm or coco / palm derivatives. Another preferred anionic detergent is alkyl ester sulfate of formula: RO (CH2CH2O) nSO3M where R is an alkyl group of 8 to 22 carbon atoms; n varies from 0.5 to 10, especially from 1.5 to 8, and M is a solubilizing cation as before. Other possible anionic detergents include alkyl glyceryl ether sulfate, sulfosuccinates, taurates, sarcosinates, sulfoacetates, alkyl phosphate, esters of alkyl phosphate and acyl lactylate, alkyl glutamates and mixtures thereof. The sulfosuccinates can be monoalkyl sulfosuccinates having the formula: R502CCH2CH (S03M) C02M; amido-MEA sulfosuccinates of the formula: R5CONHCH2CH2O2CC H2CH (SO3M) CO2M; wherein R5 varies from C8-C20 alkyl, preferably C12-C15 alkyl, and M is a solubilizing cation. Sarcosinates are generally indicated by the formula: R5CON (CH3) CH2CO2M, wherein R5 varies from C8-C20 alkyl, preferably C1-2-C1 alkyl, and M is a solubilizing cation. Taurates are generally identified by the formula: R5CON R6CH2CH2SO3M, wherein R5 varies from C_-C20 alkyl, preferably C12-C1 alkyl, R6 varies from C1-C4 alkyl, and M is a solubilizing cation.

Rough surfactants, such as primary alkane sulfonate or alkyl benzene sulfonate are generally avoided. Suitable surface active agents, nonionic, include alkyl polysaccharides, lactobionamides, ethylene glycol esters, glycerol monoethers, polyhydroxyamides (glucamide), ethoxylates of primary and secondary alcohol, especially C8-2 aliphatic alcohols ethoxylated with an average of 1 to 20 moles of ethylene oxide per mole of alcohol. If the active surface agent comprises soap, the soap is derived, preferably from materials with a substantially saturated C8 to C22 carbon chain and, preferably, is a potassium soap with a C12 to C18 carbon chain. Mixtures of any of the above active surface agents can also be used. The surface active agent is preferably present at a level of from 1 to 35% by weight, preferably 3 to 30% by weight of the composition, more preferably at least 5% by weight of the composition.

It is also preferable that the composition include from 0.5 to % or by weight of a co-surfactant agent with benefits of softness for the skin. Suitable materials are zwitterionic detergents, which have an alkyl or alkenyl group of 7 to 18 carbon atoms and comply with the overall structural formula: O R 'I R1 - [- C-N H- (CH2) m-] n -N + -X-Y where R 1 is alkyl or alkenyl of 7 to 1 8 carbon atoms, R 2 and R 3 are each independently alkyl, hydroxyalkyl or carboxyalkyl of 1 to 3 carbon atoms; m is 2 to 4; n is 0 or 1; X is alkylene of 1 to 3 carbon atoms optionally substituted with hydroxyl; and Y is -CO2"or -SO3".

Zwitterionic detergents within the above general formula include simple betaines of formula: R2 I R1 - N + - CH2CO2- I R3 and amido betaines of formula: R 'R1 - CONH - (CH2) m - N + - CH2CO2 - R3 where m is 2 or 3. In both formulas, R1, R2 and R3 are as previously defined. R1 can be, in particular, a mixture of C2 and C14 alkyl groups derived from coconut, so that at least one half, preferably at least three quarters, of the group R1 has 10 to 14 carbon atoms. R2 and R3 are preferably methyl. An additional possibility is a sulfobetaine of formula: R 'R1 - N + - (CH2) 3SO3-I. Rc or R2 R1 -CONH (CH2) m N + - (CH2) 3SO3- where m is 2 or 3, or variants of these, in which - (CH2) 3SO3"is replaced by OH l -CH2CHCH2SO3" R, R and R in these formulas are as previously defined.

A necessary component in compositions according to the invention is a cationic polymer. The cationic polymer can be a homopolymer or can be formed of two or more types of monomers. The molecular weight of the polymer will generally be between 5,000 and 1,000,000, usually at least 10,000 and preferably in the range of 100,000 to approximately 2,000,000. The polymers will have groups containing cationic nitrogen, such as protonated amino groups or quaternary ammonium, or a 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 units, separators. Such polymers are described in the CTFA Cosmetic I ngredient Directory (CTFA Cosmetic Ingredients Directory), 7th edition. The ratio of cationic to non-cationic monomer units is selected to give a polymer having a cationic charge density in the required range. Suitable cationic polymers include, for example, copolymers of vinyl monomers having cationic functionalities of amine or quaternary ammonium with water soluble spacer monomers, such as (meth) acrylamide, alkyl and dialkyl (meth) acrylamides, alkyl (meth) acrylate , vinyl caprolactone and vinyl pyrrolidine. The substituted alkyl and dialkyl monomers preferably have alkyl groups of C 1 -C 7, more preferably alkyl groups of C 1 -C 3. Other suitable separators include vinyl esters, vinyl alcohol, maleic anhydride, propylene glycol and ethylene glycol. The cationic amines can be primary, secondary or tertiary amines, depending on the particular species and the pH of the composition. In general, secondary and tertiary amines, especially tertiary, are preferred. The vinyl monomers substituted with amine and amines can be polymerized in the amine form and then converted to ammonium by 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 Cosmetic, Toiletry and Fragrance Association (CTFA) (Association of Cosmetics, Toiletries and Fragrances), such 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 (CTFA) as Polyquaternium-1 1. This material is commercially available from Gaf Corporation (Wayne, NJ, USA) under the trade name GAFQUAT (eg, GAFQUAT 755N); cationic polymers containing diallyl quaternary ammonium including, for example, dimethyldiallylammonium chloride homopolymer and copolymers of acrylamide and dimethyldiallylammonium chloride, referred to in the industry (CTFA) as Polyquaternium 6 and Polyquaternium 7, respectively; - mineral acid salts of amino-alkyl esters of homo- and co-polymers of unsaturated carboxylic acids having from 3 to 5 carbon atoms (as described in US Pat. No. 4,009,256); - cationic polyacrylamides (as described in WO95 / 2231 1). Other cationic polymers that may be used include cationic polysaccharide polymers, such as cationic cellulose derivatives, cationic starch derivatives and cationic ions of guar gum. Cationic polysaccharide polymers suitable for use in the compositions of the invention include those of the formula: AO- [RN (R1) (R2) (R3)] X- wherein: A is a residual group of anhydroglucose, such as a residual group of starch or cellulose anhydroglucose, R is an alkylene, oxyalkyl, polyoxyalkylene or hydroxyalkylene group or combination thereof; and R1, 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 (i.e., the sum of carbon atoms in R1, R2 and R3) is preferably about or less and X is an anionic counter-ion. Cationic cellulose is available from Amerchol Corp. (Edison, NJ, US) in its polymer series Polymer JR (trademark) and LR (trademark), such as hydroxyethyl cellulose salts reacted with epoxide substituted with trimethyl ammonium, referred to in industry (CTFA) as Polyquaternium 10. Another type of cationic cellulose includes the polymeric quaternary ammonium salts of hydroxyethyl cellulose which reacted with epoxide substituted with lauryl dimethylammonium, referred to in the industry (CTFA) as Polyquaternium 24. These materials are available from Amerchol Corp. (Edison, NJ, US) under the tradename Polymer LM-200. Other suitable cationic polysaccharide polymers include quaternary nitrogen containing cellulose ethers (e.g., as described in US Patent 3,962.41 8) and copol etherified cellulose and starch (for example, as described in US Pat. No. 3, 958,581). A particularly suitable type of polysaccharide cationic polymer that can be used is a cationic guar gum derivative, such as guar hydroxypropyltrimonium chloride. (Commercially available from Rhone-Pouienc in its trademark series JAGUAR). Examples are JAGUAR C 1 3S, which has a low degree of substitution of the cationic groups and high viscosity, JAGUAR C 1 5, having a moderate degree of substitution and a low viscosity, JAGUAR C 17 (high degree of substitution, high viscosity ), JAGUAR C 1 6, which is a guar hydroxypropylated cationic derivative containing a low level of substituent groups as well as cationic quaternary ammonium groups, and JAGUAR 162 which is a high transparency guar gum, of medium viscosity having a low degree of substitution. Preferably, the cationic polymer is selected from cationic cellulose derivatives and cationic guar derivatives. Particularly preferred cationic polymers are JAG UAR C1 3S, JAGUAR C1 5, JAGUAR C 17 and JAGUAR C16 and JAGUAR C162, especially Jaguar C1 3S and cationic starches, such as Softgel 9DA (trademark, ex Evebe). The cationic polymer is present in composition at levels of 0.05-3.0%, more preferably 0.4-3.0%), still more preferably 0.5-1.5% by weight of the composition. In preferred embodiments, an auxiliary structure can be added to the composition. Suitable materials include swelling clays, for example, laponite; crosslinked polyacrylates, such as Carbopol (MR) (polymers available from Goodrich); acrylates and copolymers thereof; polyvinylpyrrolidone and copolymers thereof; polyethylene, polymeric carboxylates, consisting of, and include, modified and unmodified starches, unsubstituted guar gums, agars, alginates, xanthan gum, carrageenan, cellulose derivatives, exudate gum, gelatin gum, gelatin, pectins and gums of seeds, gelling agents; and mixtures thereof. Of the clays, the synthetic hectorite clay (laponite) used in conjunction with an electrolyte salt capable of causing the clay to thicken is particularly preferred. Suitable electrolytes include alkali and alkaline earth salts, such as halides, ammonium salts and sulfates. The composition may also comprise a viscosity modifying agent, i.e., a material which adjusts the viscosity of the composition to that which is suitable for and preferred by consumers. Suitable materials include ethylene glycols, propylene glycols, salts such as sodium chloride and ammonium sulfate; and sucrose esters. Preferred viscosity modifiers include pEG 18 glyceryl glycerol dioleococoate (Antil 1 71 (trademark), ex Goldschmidt), PEG 55 propylene glycol oleate (Antil 141, (trademark), ex Goldschmidt), PEG distearate 1 50 and PEG 1 50 pentaerythritol tetrastearate (Crothix (trademark), ex Croda). The thickeners can also be added to the benefit agent, in order to achieve the viscosity required during use. Preferred thickeners for the composition include fumed silica; polyethylene; alkyl silicone waxes; Aluminum silicate; lanesterol; natural and synthetic waxes; fatty acids and derivatives thereof, in particular, polyglycol ethers of fatty acid monoglyceride; higher fatty alcohols; petrolatum; narogel; polyammonium stearate; hydrotalcites; and mixtures thereof. Hydrotalcites are materials of general formula [MmNn (OH) 2 (m + n)] n + X? -p / x and H20 where M is a divalent metal ion, for example, Mg +; N is a trivalent metal ion, for example, Al3 +; X is an exchangeable anion, for example, CO3", NO3"; stearate, cinnamate; m is the number of divalent metal ions; and n is the number of trivalent metal ions. While some materials can function both as a benefit agent and as a thickener, it will be appreciated that the benefit and thickener function can not be provided by the same component. However, it will be understood that where the composition comprises two or more benefit agents, one of the benefit agents may also function as a thickening agent. Additional examples of structurants and thickeners are given in the International Cosmetic i ngrediente Dictionary (International Dictionary of cosmetic ingredients), seventh edition, 1 997, published by CTFA (The Cosmetic, Toiletry &Fragrance Association.) Additionally, the benefit agent may also function as a carrier to deliver efficacy agents to the skin treated with the compositions of the invention. The route is particularly useful for delivering efficacy agents, which are difficult to deposit on the skin or those that suffer from detrimental interactions with other components in the composition.In such cases, the carrier is often a hydrocarbon or silicone oil, which it is not solubilized / micellized by the active surface phase and in which the efficacy agent is relatively soluble Examples of such efficacy agents include anti-viral agents, hydroxycaprylic acids, pyrrolidone, carboxylic acids, 3,4,4'- trichlorocarbanilide, benzoyl peroxide, perfumes, essential oils, germicides and insect repellents, such as 2,4,4'- trichloro-2'-hydroxydiphenyl ether (Irgasan DP300); salicylic acid; Willow extract, N, N-dimethyl m-toluamide (DEET); and mixtures thereof. The compositions of the invention can be formulated as skin care products, for example, tub or shower gels, hand washing compositions or facial wash liquids; pre- and post-shave products; skin care products for rinsing, removing rubbing and leaving stalls; products for washing hair and for dental use. Shower gels are particularly preferred product forms. The compositions of the invention will generally be volatile liquids or semi-liquids, for example, pastes, and will have a viscosity in the range of 250 to 100,000 mPas measured at a cutting speed of 10s "1 and 25 ° C on a Haake RV20 Rotoviscometer When the product is formulated as a shower gel, the viscosity will generally be in the range of 800 to 1 5,000 mPas measured at a cutting speed of 1 0 s" 1 and 25 ° C. When the product is formulated as a facial wash product, the viscosity will generally be in the range of 3,000 to 1,00,000 m Pas measured at a cutting speed of 1 0 s "1 and 25 ° C .; Other normal components of such compositions include opacifiers, preferably 0.2 to 2.0% by weight; preservatives, preferably 0.2 to 2.0% by weight and perfumes, preferably 0.5 to 2.0% by weight. The compositions according to the invention are preferably also deaerated or contain minimal incorporated air, in order to maximize the stability of the product. The invention will now be illustrated by reference to the following non-limiting examples.

EXAMPLES 1-6 The following compositions were prepared in line with the general method indicated above: The compositions had the following viscosities (as measured with a Haake VT500): Example Viscosity @ 10s'1. 25 ° C (Pa.s) 1 6.4 2 6.5 3 2.5 4 6.1 5 3.2 6 6.2 The compositions according to Examples 1 to 6 were evaluated by their deposition of silicone oil on a patch of 1 2 cm by 5 cm of porcine skin. Agree with this, porcine skin of full thickness was prehydrated and then 0.5 ml of each composition was applied. The skin was soaped for 30 seconds and then rinsed with three 200 ml portions of water at 30 ° C. Subsequently, the skin was cleaned by rubbing with a paper towel to remove excess water. Two minutes after drying, a strip of adhesive tape was pressed on the skin for 30 seconds when applying a constant load of 100 g cm "2.

The adhesive tape used was J-Lar Superclear R tape, having a width of 2.5 cm. The tape strips were taken from 3 adjacent sites on the skin. In this test procedure, the silicone that had been deposited on the skin was subsequently transferred to the tape along some of the outer layer of the skin. The amounts of silicone and skin that adhere to the tape were determined by X-ray fluorescence spectroscopy.

The tape strips were placed in an X-ray fluorescence spectrometer with the adhesive side viewing the beam of the machine. A mask was applied over the tape to define a standardized area in the center of the tape, which was exposed to the X-ray beam. The sample chamber of the machine was placed under vacuum before making measurements and the spectrometer was then used to Measure the amounts of silicon and sulfur. The sulfur was representative of the amount of the skin, which had been transferred to the tape. The amounts of silicon and sulfur observed with a clean piece of adhesive tape were subtracted from the experimental measurements. The experimental measurements for the average levels of sulfur and silicon were expressed as a ratio of silicon to sulfur. From this proportion, it was possible to determine the deposition of silicon oil per unit area of the skin.

Results Example Proportion Si / S 1 10.28 2 1 .26 3 4.65 4 1 1 .41 5 1 1 .2 6 8.52 The aggregation of silicone particles was observed and quantified using a Malvern Mastersizer. The device was configured to detect the silicone oil. The level used enabled the detection of silicon droplets and aggregates in the range of 0.1-200 μm; the amount of shower gel composition used was selected to provide an absorbance value in the apparatus of 0.2-0.25. A small amount of shower gel was diluted under agitation in the sample presentation unit of the apparatus. Agitation was necessary to ensure that the dilution of shower gel had occurred efficiently.

Example% Si oil with size% silicone oil with particle size in the range of particle size in 0.2-3.27 or range of 3.27-69.3 um 1 9.38 60.83 2 97.1 8 0.26 3 91 .1 9 2.64 4 50.12 39.33 5 50.24 45.1 5 6 34.28 52.38 The results indicate that the supremely superior deposition is obtained in compositions according to the invention, where relatively large particles comprising agglomerated individual silicone droplets have been deposited on the substrate.

Claims (9)

REVINDICATIONS

1 . A liquid, aqueous, wetting and cleaning composition comprising: a) an active surface agent selected from anionic, nonionic, zwitterionic and cationic surface active agents, soap and mixtures thereof; b) a benefit agent selected from silicone oils, gums and modifications thereof; fats and oils (including natural fats and oils); hardened oils; synthetic mono-, di- and triglycerides; waxes, hydrophobic plant extracts; hydrocarbons; higher fatty acids; major alcohols; esters; essential oils; lipids; vitamins and alkyl esters of vitamins; sun blockers; phospholipids; and mixtures thereof, wherein the benefit agent is capable of forming aggregated particles; and c) a cationic polymer characterized in that the cationic polymer is present in the composition at levels of 0.05-3.0% by weight; and that the benefit agent is present as aggregated particles of 5-5000 individual particles.

2. A composition according to claim 1, wherein the individual particles have average particle sizes of less than 5 μm (5 microns).

3. A composition according to claim 2, wherein the individual particles or droplets have an average particle size of less than 1 μm (1 miera).

4. A composition according to any of the preceding claims, wherein the composition comprises at least 3% by weight of the benefit agent in agglomerates of average particle sizes of 3-80 μm (3-80 microns). A composition according to any of the preceding claims, wherein the composition comprises less than 50% by weight of the benefit agent, having average particle sizes of less than 3 μm (3 microns). 6. A composition according to any of the preceding claims, wherein the composition comprises less than 10% by weight of the benefit agent, having average particle sizes of more than 80 μm (80 microns). A composition according to any of the preceding claims, wherein the benefit agent in the composition remains as agglomerated particles or droplets when the composition is diluted with distilled water by a factor of 10. 8. A composition according to any of the preceding claims, wherein the benefit agent is present in the composition at a level of 4-25% by weight. 9. A composition according to any of the preceding claims, wherein the surfactant is an anionic surfactant, and is a fatty acyl setionate or an alkyl ether sulfate. 1 0. A composition according to any of the preceding claims, wherein the cationic polymer is present at levels of 0.5-1.5% or by weight of the composition. eleven . A composition according to any of the preceding claims, further comprising an auxiliary structure. 12. A composition according to any of the preceding claims, which additionally comprises a co-surfactant. 13. A composition according to any of the preceding claims, further comprising a viscosity modifier. 14. A composition according to claim 1, wherein the viscosity modifier is a polypropylene glycol. 1

5. A composition according to any of the preceding claims, wherein the cationic polymer is at least partially hydrated. 1

6. A composition according to claim 1, wherein the cationic polymer is completely dispersed in the aqueous solution before it is completely hydrated. 1

7. A method for making a composition according to claim 1, wherein the cationic polymer is predispersed in a non-aqueous liquid, which is then dispersed in the aqueous liquid composition.

8. A method for making a composition according to claim 1, wherein the cationic polymer is predispersed in an aqueous solution, which has a pH of at least 10, which is then dispersed in the aqueous composition.