MXPA99006778A - Composition containing an opacifying or pearlescent agent and at least one fatty alcohol - Google Patents

Abstract

Cosmetic compositions useful e.g. as shampoo conditioners contain a detergent base, a fatty alcohol and an opacifying agent or pearlescent agent Use of a fatty alcohol or a mixture of saturated linear fatty alcohols comprising at least 50 wt.%of an alcohol having 22 C in cosmetic compositions comprising a detergent base and an opacifying agent or pearlescent agent to give products with a stable pearlescent gloss. Cosmetic compositions comprising, in a cosmetically acceptable medium:(i) at least one detergent base, (ii) at least one fatty alcohol or mixture of saturated linear fatty alcohols comprising at least 50 wt.%(especially at least 70 wt.%) of an alcohol with 22 C and (iii) at least one opacifying agent or pearlescent agent.

Description

COMPOSITION CONTAINING AN OPACIFYING OR NACCING AGENT AND AI, LESS ONE FATTY ALCOHOL.

Field of Invention The present invention relates to a composition comprising at least one surfactant base, at least one fatty alcohol or a mixture of linear and saturated long chain fatty alcohols including at least 50% by weight of an alcohol having 22 carbon atoms and at least one opacifying and / or pearly agent, when used as a pearlizing agent, to a cosmetic composition comprising, in a cosmetically acceptable medium, at least one surfactant base, at least one fatty alcohol or a mixture of linear and saturated fatty alcohols. long chain comprising at least 50% by weight of an alcohol having 22 carbon atoms, at least one opacifying and / or pearly agent and at least one conditioning agent for keratin materials. Another subject of the invention is the use of said composition as a suspending agent for insoluble conditioning agents.

Ref: 030851 Background of the Invention It is well known that hairs that have been sensitized (ie damaged and / or embrittled) to varying degrees under the action of atmospheric agents or under the action of mechanical or chemical treatments, such as colorations, discolorations and / or permanent, are a often difficult to unravel and 'to comb, and they lack softness.

The compositions for the washing or treatment of keratin materials, such as hair, have already been recommended for the use of conditioning agents, particularly insoluble, to facilitate the disentangling of the hair and to impart softness, shine and flexibility to the hair.

In view of the insoluble nature of certain conditioning agents such as, for example, silicones or oils, it is sought to keep the conditioning agents in regular dispersion in the medium without, however, reducing the viscosity and the detergent and foaming properties of the compositions. . The silicones must also be transported on the treated keratin materials in order to give them, depending on the application, properties of softness, shine and disentangling.

It is also known that products in particular cosmetics with an iridescent, iridescent or metallic appearance or effect are widely appreciated by consumers for their aesthetic appearance and provide an appearance of richness to the product. The agents that contribute this effect are pearlescent agents that generally comprise crystals that remain dispersed in the compositions and that reflect the light.

By the term "pearlizing agent" is meant an agent that produces an iridescent, iridescent or metallic appearance or effect.

There are currently few means of effectively keeping the insoluble conditioning agents in suspension, since it is a difficult problem to solve; In this regard, the use of long chain ester derivatives or polysaccharides such as xanthan gum has already been proposed. However, the derivatives of long chain esters can present crystallization problems that produce an evolution of the viscosity of the compositions with the passage of time; the gelling agents also have drawbacks, namely that on the one hand the foam of the detergent compositions containing the xanthan gum hardly develops (poorly foaming) and that, on the other hand, the compositions do not have a texture smooth and flow to blows, which is little appreciated by users.

The derivatives of long chain ethers or thioethers are also known, such as those described in applications EP457688 and WO98 / 03155. However, these latter agents opacify the compositions without providing pearlizing agent to the compositions or not sufficiently.

It has already been tried to improve pearlescence by adding thickening agents and / or other pearlizing agents, but thus the viscosity becomes too important and / or the composition is no longer stable.The applicant has discovered, which is the object of the invention, that the use of a fatty alcohol or a mixture of linear and saturated long chain fatty alcohols including at least 50% by weight of an alcohol having 22 carbon atoms carbon allowed to pearlize and / or improve the pearlescence of the compositions comprising at least one surfactant base and at least one opacifying and / or pearlizing agent.

Description of the invention The subject of the invention is therefore compositions comprising at least one surfactant base, at least one fatty alcohol or a mixture of linear and saturated long-chain fatty alcohols comprising at least 50% by weight of an alcohol having 22 carbon atoms. carbon and at least one opacifying and / or pearly agent.

The compositions according to the invention can be used as a pearlizing base of cosmetic compositions to provide a pearlescent effect superior to that obtained by the opacifying and / or pearly agent.

The subject of the invention is also the use of a fatty alcohol or a mixture of linear and saturated long-chain fatty alcohols comprising at least 50% by weight of an alcohol having 22 carbon atoms and an opacifying agent as a pearlizing base .

The compositions exhibit a very good homogeneity and a good pearlescence stability, as well as a satisfactory viscosity for the application on the keratin materials.

Other objects of the invention will appear on reading the description and the examples that follow.

The fatty alcohol or the mixture of linear and saturated long chain fatty alcohols comprising at least 50% by weight of an alcohol having 22 carbon atoms more particularly comprises at least 70% by weight of C22 alcohol in relation to the total weight of the mixture.

Generally, the mixture of linear and saturated long chain fatty alcohols contain C16 to C24 fatty alcohols. The C16 and C24 fatty alcohols each generally represent less than 2% by weight, the C18 chains less than 10% by weight of the total weight of the mixture.

Such fatty alcohols are, in particular, the products marketed under the name NAFOL 1822 C by the company CONDEA, which contain approximately 0.5% of C16, 4-6% of C18, 15-19% of C20, 74-78% of C22 and about 1.5% of C24 or the product marketed under the name NAFOL 2298 by the Company CONDEA containing 98% of C22 alcohol or under the name NAFOL 2298 containing 98% by weight of C22 alcohol.

The pearlizing and / or opacifying agents which can be used according to the invention can be chosen from: A) solid fatty dialkyl ethers at a temperature of less than or equal to about 30 ° C, such as, for example, the dialkylethers of formula (I).

R-O-R '(I) in which R and R ', identical or different, designate an alkyl, saturated or unsaturated, linear or branched radical, comprising from 12 to 30 carbon atoms and preferably from 14 to 24 carbon atoms, R and R' being chosen in a such that the compound of formula (I) is solid at a temperature less than or equal to about 30 ° C. More particularly R and R 'are identical.

Preferably, R and R 'designate a stearyl radical.

The dialkylethers which can be used according to the invention in the compositions are insoluble.

These compounds can be prepared according to the process described in the patent application DE 41 27 230.

A tearyl ether that can be used in the context of the present invention is sold in particular under the name CUTINA KE 3178 by the HENKEL Company.

B) alcohols having 27 to 48 carbon atoms and comprising one or two ether and / or thioether or sulfoxide groups corresponding to formula (II): Rl-X- [C2H3 (OH)] -CH2-Y-R2 (II) wherein R1 and R2 designate, independently from each other, linear C12 to C24 alkyl groups; X denotes an oxygen atom, a sulfur atom, a sulfoxide or methylene group; Y designates an oxygen atom, a sulfur atom, a sulfoxide or methylene group; in the case where Y designates a methylene group, the sum of the number of carbon atoms present in the groups R1 and R2 has a value ranging from 24 to 44 and preferably from 28 to 40 inclusive; when Y does not designate a methylene group, the sum of the carbon atoms present in the groups R1 and R2 has a value ranging from 24 to 44 and preferably from 28 to 49 inclusive; when X or Y designates sulphoxide, Y or X do not designate sulfur.

The compounds of formulas (II) preferably used according to the invention are those for which X denotes oxygen, and designates methylene, and R1 and R2 designate radicals having from 12 to 22 carbon atoms.

These compounds can be prepared according to EP 457 688.

According to the invention, the linear and saturated fatty alcohol including at least 50% by weight of alcohol containing 22 carbon atoms can represent from 0.5% to 15% by weight, preferably from 0.5% to 5% by weight, and even more preferably from 0.5% to 3% by weight, of the total weight of the final composition.

According to the invention, the pearlizing and / or opacifying agent may represent from 0.5% to 15% by weight, preferably from 0.5% to 5% by weight, and even more preferably from 1% by weight. 3% by weight, of the total weight of the final composition.

The opacifying agent / fatty alcohol ratio of C22 is generally between 0.2 and 8 and preferably between 0.3 and 5.

According to a preferred variant of the invention, the cosmetic compositions can also contain conditioning agents for keratin materials.

The invention therefore also relates to novel cosmetic compositions, in particular washing and foaming compositions comprising, in a cosmetically acceptable medium, a surfactant base, at least one conditioning agent, at least one fatty alcohol or a mixture of linear fatty alcohols and long chain saturated comprising at least 50% by weight of an alcohol having 22 carbon atoms and at least one opacifying and / or pearlizing agent.

The compositions thus prepared also have good detergent and foaming properties and give the keratin materials, particularly the hair and / or the skin, a great softness.

These compositions, when applied to the hair, have in addition to their washing properties, conditioning properties of the hair, that is to say that the treated hair is smooth, is easily unraveled, is soft to the touch. The hair looks natural and not loaded.

The compositions according to the invention containing conditioning agents are stable: in particular, there is no release of conditioning agents or uncontrolled thickening of the composition over time. The compositions finally have a non-spinning and fluxing texture. The foam is aerated and rinses easily.

Another object of the invention is constituted by the washing and conditioning process using such compositions.

The subject of the invention is also the use of at least one fatty alcohol or a mixture of linear and saturated long chain fatty alcohols including at least 50% by weight of an alcohol having 22 carbon atoms and at least one opacifying agent and / or pearlizing agent as suspending agent of an insoluble conditioning agent in a particular cosmetic washing and foaming conditioning composition containing, in a cosmetically acceptable aqueous medium, a surfactant base.

When the composition contains at least one conditioning agent, they are generally chosen among the poly-α-olefins, the fluorinated oils, the fluorinated waxes, the fluorinated rubbers, the carboxylic acid esters, the cationic polymers, the silicones, the mineral oils , vegetables or animals, ceramides, and pseudoceramides and their mixtures.

The cosmetically acceptable medium is preferably constituted by water or a mixture of water and of cosmetically or dermatologically acceptable solvents such as monoalcohols, polyalcoholes, glycol esters or fatty acid esters, which can be used alone or as a mixture.

Mention may be made, more particularly, of lower alcohols such as ethanol, isopropanol, polyalcohols such as diethylene glycol, glycerin, sorbitol, glycol ethers, glycol alkylethers or diethylene glycol.

The composition of the invention can also contain at least one additive selected from sequestrants, softeners, foam modifiers, colorants, other pearlizing agents, moisturizing agents, antiplicular or anti-seborrhoeic agents, other suspending agents , the fatty acids of linear or branched chains of C16-C40, hydroxy acids, electrolytes, thickeners, fatty acid esters, fatty acid esters and glycerol, surfactants, perfumes, preservatives, filters solar, proteins, vitamins, polymers, and any other additive classically used in the cosmetic field.

These additives are present in the composition according to the invention in proportions which can range from 0 to 40% by weight relative to the total weight of the composition. The precise quantity of each additive depends on its nature and is easily determined by the person skilled in the art.

Of course, the person skilled in the art will try to choose the possible compound (s) to be added to the composition according to the invention in such a way that the advantageous properties intrinsically related to the composition according to the invention are not, or substantially, altered by the addition cons iderada.

The compositions according to the invention may be in the form of gel, milk, cream, more or less thick lotion or foam.

The compositions according to the invention can be used for the treatment of keratinous substances such as the hair, the skin, the eyelashes, the eyebrows, the nails, the lips, the scalp or more particularly the hair.

The compositions can also be used for the washing and cleaning of the ketatin materials such as the hair and the skin.

The compositions according to the invention are generally used as products in particular for washing, treating, conditioning, maintaining the hairstyle or shaping keratin materials such as hair.

The compositions of the invention can more particularly be presented in the form of a shampoo, after washing with shampoo with rinse or not, of compositions for perming, straightening, coloring or decolorization, or even in the form of compositions to be applied before or after a coloring , a discoloration, a permanent or a relax or even between the two stages of a permanent or an unroll. Preferably, the compositions are washing and foaming compositions for the hair and / or the skin.

In particular, the compositions according to the invention are foaming detergent compositions such as shampoos, shower gels and foaming baths. In this embodiment of the invention, the compositions comprise a water-based, generally aqueous, surfactant base.

The surface-active agent (s) forming the washing base can be chosen either singly or as a mixture, in the anionic, amphoteric, nonionic, zwitterionic and cationic surfactants.

The minimum amount of washing base is just sufficient to give the final composition a satisfactory foaming and / or detergent power.

Thus, according to the invention, the washing base may represent from 4% to 30% by weight, preferably from 6% to 25% by weight, and even more preferably from 8% to 20% by weight, of total weight of the final composition.

The surfactants that are suitable for carrying out the present invention are particularly the following: (i) Anionic Surfactant Agent (s): Its nature does not have, within the framework of the present invention, a truly critical character.

Thus, by way of example of usable anionic surfactants, alone or as a mixture, within the framework of the present invention, mention may be made in particular (non-limiting list) of the salts (in particular alkali salts, particularly sodium, ammonium salts, salts of amines, salts of aminoalcohols or magnesium salts) of the following compounds: alkyl sulphates, alkyl ether sulphates, alkyl amido ether sulphates, alkyl aryl polyester sulfates, monoglyceride sulfates; alkyl sulfonates, alkyl phosphates, alkyl amido sulfonates, alkyl aryl sulfonates, α-olefin sulphonates, paraffin sulphonates; the alkyl sulfo succinates, the alkyl ether sulfosuccinates, the alkyl amide sulfosuccinates; the alquisulfoactates; the alkyl phosphates; acyl sarcosinates; the acyl isethionates and the N-acyl taurates, the alkyl or acyl radical of all these various compounds preferably comprising 8 to 24 carbon atoms, and the aryl radical which preferably designates a phenyl or benzyl group. Among the anionic surfactants which may also be used, mention may also be made of salts of fatty acids such as the salts of oleic, ricinoleic, palmitic, stearic acids, copra oil acids or hydrogenated copra oil; acyl lactylates whose acyl radical comprises from 8 to 20 carbon atoms. It is also possible to use poorly anionic surface-active agents, such as alkyl D-galactoside-uronic acids and their salts, as well as polyoxyalkwhenylated carboxylic acid (C6-C24) alkyl acids, polyoxyalkylenated carboxylic acid (C6-C24) alkyl carboxylic acids, alkylamido acids (C6 ~ C24) polyoxyalkylenated carboxylic ethers and their salts, in particular those comprising from 2 to 50 ethylene oxide groups, and mixtures thereof.

Among the anionic surfactants, it is preferred to use the salts of alkyl sulfates and alkyl ether sulphates and their mixtures according to the invention. i i) Non-ionic surfactant (s) (s) The nonionic surfactants are also, themselves, well-known compounds (see particularly in this respect "Handbook of Surfactants" by MR POSTER, Editions Blackie &Son (Glasgow and London), 1991, pages 116-178) and its nature does not review, within the framework of the present invention, critical character. Thus, alcohols, alpha-diols, alkylphenols or polyethoxylated, polypropoxylated or polyglycerolated fatty acids with a fatty chain comprising, for example, from 8 to 18 carbon atoms can be chosen from the (non-limiting list), the number of which can be varied of ethylene oxide or propylene oxide groups, in particular between 2 and 50, and the number of glycerol groups can vary, in particular between 2 and 30. Copolymers of ethylene oxide and propylene oxide, ethylene oxide condensates and ethylene oxide condensates can also be mentioned. propylene on fatty alcohols; the polyethoxylated fatty amides preferably having from 2 to 30 moles of ethylene oxide, the polyglycerolated fatty amides comprising on average from 1 to 5 glycerol groups and in particular from 1.5 to 4; polyethoxylated fatty amines preferably having 2 to 30 moles of ethylene oxide; the oxyethylenated sorbitan fatty acid esters having from 2 to 30 moles of ethylene oxide; sucrose fatty acid esters, polyethylene glycol fatty esters, alkyl polyglycosides, N-alkyl glucamine derivatives, amine oxides such as alkyl (C 10 -C 14) amines, or N-acylaminopropylmorpholine oxides . It will be appreciated that the alkyl polyglycosides constitute nonionic surfactants which enter particularly well within the framework of the present invention. (iii) Amphoteric (s) or zwitterionic (s) agent (s): The amphoteric or zwitterionic surfactants, whose nature does not fall within the scope of the present invention character, can be particularly (non-limiting list) derivatives of aliphatic secondary or tertiary amines, in which the aliphatic radical is a straight or branched chain that comprises from 8 to 18 carbon atoms and which contain at least one water-solubilizing anionic group (for example carboxylate, sulfonate, sulfate, phosphate or phosphonate); Mention may also be made of (C8-C2o) alkyl betaines, sulfobetaines, alkyl (Cj C2o) amidoalkyl (Ci-Cß) betaines or the alkyl (C2o) amidoalkyl (C6C6) sulfobetaines.

Among the derivatives of amines, mention may be made of the products marketed under the name MIRANOL, such as those described in US-2528378 and US-27881354 and classified in the CTFA dictionary, 3rd edition, 1982, under the names Amphocarboxy-glycina te and Amphocarboxoypropionates of respective structures: R2-CONHCH2CH2-N (R3) (R4) (CH2COO-) (2) wherein: R2 designates an alkyl radical of an acid R2-COOH present in the hydrolyzed copra oil, a heptyl, nonyl or undecyl radical, R3 designates a beta-hydroxyethyl group and R4 a carboxymethyl group; AND R2 - CONHCH2CH2 -N (B) (C) (3) in which B represents -CH2CH2OX ', C represents - (CH2) ZY', with z = 1 or 2, X 'designates the group -CH2CH2-COOH or a hydrogen atom Y 'designates -COOH or the radical -CH2-CHOH-S03H R2 'designates an alkyl radical of an acid R9-COOH present in the copra oil or in the hydrolyzed linseed oil, an alkyl radical, particularly of C7, C9, Cu or C13, an alkyl radical of C17 and its iso form, an unsaturated C? 7 radical.

By way of example, mention may be made of the cocoanfocarboxiglycinate marketed under the trade name MIRANOL C2M concentrate by the company RHODIA CHIMIE. (iv) Cationic surfactants: Among cationic surfactants, whose nature is not critical in the context of the present invention, mention may be made in particular (non-limiting list): salts of primary, secondary or tertiary fatty amines, optionally polyoxy-alkylene; quaternary aminium salts, such as t-butylkylammonium, alkylamidoalkyl trialkylammonium, trialkylbenzylammonium, trialkylhydroxyalkylammonium or alkylpyridinium chlorides or bromides; the imidazoline derivatives; or the amine oxides of cationic character.

The subject of the invention is also a method for the cosmetic treatment of keratin materials, such as hair, consisting of applying a composition as defined above to a hair rinse with water after a possible rest period.

The compositions according to the invention can be prepared mainly according to two operative modes: The first one consists of heating all the ingredients of the composition to about 80 ° C under agitation then letting the mixture cool down to room temperature.

The second consists in preparing a pearlizing concentrate comprising surface active agents, the opacifying agent and the fatty alcohol, water, a pH agent and optionally a preservative. The opacifying or pearlizing agent and the fatty alcohol are added under stirring in the mixture of water and surfactants previously heated at about 80 ° C. The temperature is maintained for approximately 30 minutes then the mixture is cooled to about 30 ° C. The required amount of concentrate is then added to the shampoo base at room temperature with the help of a turbine.

The invention will now be illustrated more fully with the help of the following examples which would not be considered as limiting to the described embodiments. In what follows, MA means Active Matter.

EXAMPLE 1 Three shampoos were prepared with the following compositions: Compositions A and B are according to the invention, composition C is a comparative composition.

The pearlescence of compositions A and B according to the invention is superior to that of composition C which contains only the opacifying agent.

The foaming properties of compositions A and B are good.

Compositions A and B have a good viscosity and are stable.

EXAMPLE 2 Three shampoos were prepared with the following compositions: Compositions A and B are according to the invention, composition C is a comparative composition.

ABC -Lauryl ether sulfate of 14.5 gMA 14.5 gMA 14.5 gMA sodium oxyethylenated in 2.2 moles of ethylene oxide in 70% aqueous solution of MA The pearlescence of compositions A and B according to the invention is superior to of composition C which contains only the opacifying agent.

The foaming properties of compositions A and B are good.

Compositions A and B have a good viscosity and are stable.

When the NAFOL 182C is replaced by a fatty alcohol comprising approximately 44% by weight of C22 alcohol in the compositions A and B, it is observed that the pearly is incomplete and insufficient.

It is noted that in relation to this date, the best method known to the applicant for carrying out said invention is that which is clear from the present description of the invention.

Having described the invention as above, the content of the following is claimed as property.

Claims (14)

Claims

1. A cosmetic composition characterized in that it comprises in a cosmetically acceptable medium at least one surfactant base, at least one fatty alcohol or a mixture of linear and saturated long chain fatty alcohols comprising at least 50% by weight of an alcohol having 22 atoms of carbon and at least one opacifying and / or pearly agent.

2. The composition according to claim 1, characterized in that the fatty alcohol or the mixture of fatty alcohols comprises at least 70% by weight of alcohol having 22 carbon atoms relative to the total weight of the mixture.

3. The composition according to any of claims 1 or 2, characterized in that the pearlizing and / or opacifying agents are chosen from: A) the solid dialkyl ethers at a temperature lower than or equal to about 30 ° C such as, for example, dialkyl ethers of the formula (I): R-O-R '(I) in which R and R ', identical or different, designate an alkyl, saturated or unsaturated, linear or branched radical, comprising from 12 to 30 carbon atoms and preferably from 14 to 24 carbon atoms, with R and R' being chosen in a such that the compound of formula (I) is solid at a temperature less than or equal to about 30 ° C. More particularly R and R 'are identical. B) alcohols having 27 to 48 carbon atoms and comprising one or two ether and / or thioether or sulfoxide groups corresponding to formula (II): R1-X [C2H3 (OH)] -CH2-Y-R2 (II) in which: R1 and R2 designate, independently from each other, linear alkyl groups of C12 to C24; X denotes an oxygen atom, a sulfur atom, a sulfoxide or methylene group; Y designates an oxygen atom, a sulfur atom, a sulfoxide or methylene group; in the case where Y designates a methylene group, the sum of the number of carbon atoms present in the groups R1 and R2 have a value ranging from 24 to 44 and preferably from 28 to 40 inclusive; when Y does not designate a methylene group, the sum of the carbon atoms present in the groups R1 and R2 has a value ranging from 24 to 44 and preferably from 28 to 40 inclusive; when X or Y designates sulphoxide, Y or X do not designate sulfur.

4. The composition according to any of claims 1 to 3, characterized in that the pearlizing and / or opacifying agents are chosen from: A) the tearyl ether, B) the compounds of formulas (II) for which X denotes oxygen, and designates methylene, and R1 and R2 designate radicals having from 12 to 22 carbon atoms.

5. The composition according to any of the rei indications 1 to 4, characterized in that the fatty alcohol or the mixture of fatty alcohol represents from 0.5% to 15% by weight, preferably from 0.5% to 5% by weight, and still more preferably from 0.5% to 3% by weight, of the total weight of the final composition.

6. The composition according to any of claims 1 to 5, characterized in that the opacifying and / or pearlizing agent represents from 0.5% to 15% by weight, preferably from 0.5% to 5% by weight, and even more preferably from the 1% to 3% by weight, of the total weight of the final composition.

7. The composition according to any of the preceding claims, characterized in that it also comprises at least one conditioning agent

8. The composition according to the preceding claim, characterized in that the conditioning agent is selected from among the poly-α-olefins, the fluorinated oils, the fluorinated waxes, the fluorinated rubbers, the carboxylic acid esters, the particular cationic polymers, the silicones, mineral, vegetable or animal oils, ceramides, pseudoceramides, and their mixtures.

9. The composition according to any of the preceding claims, characterized in that it is in the form of gel, milk, cream, more or less thick lotion or foam.

10. The composition according to any of the preceding claims, characterized in that it constitutes a foaming detergent composition such as shampoos, shower gels and foaming baths.

11. The use of at least one fatty alcohol or a mixture of linear and saturated long chain fatty alcohols comprising at least 50% by weight of an alcohol having 22 carbon atoms and of at least one opacifying and / or pearly agent as Puttering agent is suspension of an insoluble conditioning agent in a particular cosmetic washing and foaming conditioning composition containing, in a cosmetically acceptable aqueous medium, a surfactant base.

12. The use of a fatty alcohol or a mixture of linear and saturated long chain fatty alcohols comprising at least 50% by weight of an alcohol having 22 carbon atoms to pearlize and / or improve pearlescence of the compositions comprising the less a surfactant base and at least one opacifying and / or pearlizing agent.

13. The use of a fatty alcohol or a mixture of linear and saturated long chain fatty alcohols comprising at least 50% by weight of an alcohol with 22 carbon atoms and an opacifying and / or pearly agent as a pearlizing base

14. A method for the cosmetic tment of keratin materials, in particular of the hair, characterized in that it consists of applying a composition as defined by any one of claims 1 to 10 on said materials, then optionally rinsing with water.