FR2847807A1 - Cosmetic composition useful as a shampoo comprises calcium phosphate particles, an anionic surfactant, an amphoteric, cationic and/or nonionic surfactant, and a cationic polymer - Google Patents

Abstract

Cosmetic composition comprises solid particles containing at least 10 wt.% calcium phosphate, an anionic surfactant, an amphoteric, cationic and/or nonionic surfactant, and a cationic polymer with a charge density of 7 meq/g or less.

Description

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COSMETIC COMPOSITION COMPRISING PARTICLES OF
CALCIUM PHOSPHATE AND AN ASSOCIATION OF SURFACTANTS
The present invention relates to a cosmetic composition, in particular a hair composition, containing, in a cosmetically acceptable medium, calcium phosphate particles and a combination of surfactants. It also relates to a method of cosmetic treatment of the hair comprising the application of this composition as well as its use as a rinsed hair product.

 For cleaning and / or washing the hair, the use of detergent hair compositions (or shampoos), essentially based on conventional surfactants of types in particular anionic, nonionic and / or amphoteric, but more particularly of anionic type , is common. These compositions are applied to wet hair and the foam generated by massage or friction with the hands allows, after rinsing with water, the removal of the various soils initially present on the hair.

 These basic compositions certainly have good washing power, but the intrinsic cosmetic properties which are attached to them nevertheless remain quite weak, in particular due to the fact that the relatively aggressive nature of such a cleaning treatment can lead in the long run to the fiber. capillary more or less marked damage linked in particular to the progressive elimination of lipids or proteins contained in or on the surface thereof.

 Also, to improve the cosmetic properties of the above compositions, and more particularly of those which are to be applied to sensitized hair (ie hair which is damaged or weakened in particular under the chemical action of atmospheric agents and / or treatments capillaries such as perms, dyes or discolourations), it is now customary to introduce cosmetic agents into the latter.

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 complementary so-called conditioning agents intended mainly to repair or limit the harmful or undesirable effects induced by the various treatments or attacks which the hair fibers undergo, more or less repeatedly.

These conditioning agents can of course also improve the cosmetic behavior of natural hair.

 The conditioning agents most commonly used to date in shampoos are cationic polymers, silicones and / or silicone derivatives, which in effect give washed, dry or wet hair, ease of disentangling and a markedly increased softness by compared to what can be obtained with the corresponding cleaning compositions which are free thereof.

 However, these cosmetic advantages are unfortunately also accompanied, on dry hair, by certain cosmetic effects deemed undesirable, namely a weighing down of the hairstyle, a lack of straightening.

 In addition, the use of cationic polymers for this purpose has various drawbacks. Due to their strong affinity for the hair, some of these polymers deposit significantly during repeated use, and lead to undesirable effects such as an unpleasant, charged touch, stiffening of the hair, and adhesion between the fibers affecting styling.

These drawbacks are accentuated in the case of fine hair, which lacks nervousness and volume.

 The use of particles in rinsed compositions has already been proposed, so as to improve the feel and appearance of the hair. By way of illustration, US Pat. No. 5,334,376 proposes the addition of calcium carbonate particles in hair conditioning compositions containing a silicone, a fatty alcohol and an amide.

 In patent application DE 199 46 784, it has also been proposed to use particles of different oxides, hydroxides, carbonates, silicates or phosphates, in hair compositions, to reduce the greasy appearance of

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 hair. It is intended, in general, to associate these particles with the conventional ingredients of shampoos.

 However, and in spite of the progress made recently in the field of rinsed hair products and in particular shampoos, the latter are not really completely satisfactory, so that a great need still exists today as regards being able to have new products having, at the level one or more of the cosmetic properties, better performance.

 The Applicant has discovered, surprisingly and unexpectedly, that by judiciously choosing the base of surfactants and the conditioning agent, combined with calcium phosphate particles, it was possible to improve the results obtained with cosmetic products, especially rinsed capillaries, in terms of cosmetic and shaping properties. In particular, it brings texture to the hair (feeling of increased thickness), ease of shaping and better hold of the hairstyle.

 The subject of the invention is a cosmetic composition, in particular a hair composition, comprising, in a cosmetically acceptable medium: (a) solid particles containing at least 10% by weight of calcium phosphate; (b) at least one anionic surfactant, (c) at least one amphoteric, cationic and / or nonionic surfactant and, (d) at least one cationic polymer whose cationic charge density is less than or equal to 7 meq / g and , preferably, greater than or equal to 0.05 meq / g.

 Preferably, the weight ratio of concentrations of the anionic surfactant (s) to cationic, nonionic and / or amphoteric surfactants is greater than or equal to 1.

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 Another object of the present invention consists of a method of cosmetic treatment of the hair using the composition according to the invention.

 Another subject of the invention is the use of the composition in hair cosmetics, in particular in rinsed hair application.

 Other objects, characteristics, aspects and advantages of the invention will appear even more clearly on reading the description and the various examples which follow.

CALCIUM PHOSPHATE PARTICLES
The particles containing at least 10% by weight of calcium phosphate preferably have a number-average primary size of between 2 nm and 2 microns, more preferably between 5 and 500 nm, and even more preferably between 10 and 250 nm.

 For the purposes of the present invention, the term "primary particle size" means the maximum dimension which it is possible to measure between two diametrically opposite points of an individual particle. The size can be determined, for example, by transmission electron microscopy or from the measurement of the specific surface by the BET method or by means of a laser granulometer.

 The particles according to the invention can, for example, have any shape, for example the shape of spheres, flakes, needles, platelets or totally random shapes.

 According to the present invention, the particle can be a mass particle formed entirely of calcium phosphate. Calcium phosphate can also totally or partially constitute the core of the particle, the latter being covered with another constituent, such as, for example, an oxide, a silicate or a metal. Phosphate

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 calcium can also form only the coating of a substrate of different chemical constitution, such as for example an oxide, a silicate or a metal.

 In the case where the particles are formed by calcium phosphate and other charges, the calcium phosphate is in the free state and does not form chemical bonds with the other charges. It is then an alloy between calcium phosphate and other fillers, in particular with oxides of metals or metalloids, in particular obtained by thermal fusion of these various constituents.

 When the particles containing at least 10% by weight of calcium phosphate comprise, in addition, a metal or metalloid oxide, the latter is in particular chosen from silicon, boron or aluminum oxide.

 Preferably, the particles contain at least 50% by weight of calcium phosphate, better still at least 70% by weight, and the particles consisting of more than 90% by weight of calcium phosphate are particularly preferred according to the present invention.

 Even more advantageously, the particles containing at least 10% by weight of calcium phosphate are particles of substantially pure calcium phosphate.

 As calcium phosphate which can be used according to the invention, mention may be made of monobasic calcium phosphate (Ca (H2PO4) 2), dibasic calcium phosphate (CaHPO4), tribasic calcium phosphate (Ca5HP3013), calcium meta phosphate ( Ca (P03) 2) and calcium pyrophosphate (Ca2P207) and their mixtures.

 The calcium phosphate suitable in the compositions of the present invention may be of natural origin or may be of natural origin.

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 synthetic. In the latter case, it can be obtained from calcium oxide, calcium peroxide, calcium acetate or ethylate.

 The particles containing calcium phosphate according to the invention are, in particular, used in an amount between 0.01% and 30% by weight, and preferably between 0.05% and 5% by weight relative to the total weight of the composition.

 The composition according to the invention may also contain other types of particles, for example, particles of titanium or zinc oxide, of aluminum.

The surfactants which are suitable for carrying out the present invention are in particular the following: (i) Anionic surfactant (s):
By way of example of anionic surfactants which can be used, alone or as mixtures, in the context of the present invention, mention may in particular be made of the salts (in particular, alkaline, especially sodium, ammonium salts, amine salts, salts amino alcohols or magnesium salts) of the following compounds: alkylsulfates, alkylethersulfates, alkylamidoethersulfates, alkylarylpolyethersulfates, monoglycerides sulfates alkylsulfonates, alkylphosphates, alkylamidesulfonates, alkylarylsulfonates, a-olefin sulfonates, paraffin sulfonates; alkylsulfosuccinates, alkylethersulfosuccinates, alkylamidesulfosuccinates; alkyl sulfosuccinamates; alkyl sulfoacetates; alkyl etherphosphates; acylsarcosinates; acylisethionates and Nacyltaurates, the alkyl or acyl radical of all these different compounds preferably containing from 12 to 20 carbon atoms, and the aryl radical preferably denoting a phenyl or benzyl group. Among the anionic surfactants which can still be used, mention may also be made of the salts of fatty acids such as the salts of oleic, ricinoleic, palmitic, stearic acids, coconut oil or hydrogenated coconut oil acids; acyllactylates whose acyl radical contains 8 to 20 carbon atoms. Weakly anionic surfactants, such as alkyl acids, can also be used.

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D uronic galactoside and their salts as well as polyoxyalkylenated carboxylic ether acids and their salts, polyoxyalkylenated (C6-C24) alkyl (C6-C24) ethercarboxylic acids, polyoxyalkylenated alkyl (C6-C24) amidoether carboxylic acids and their salts , in particular those comprising from 2 to 50 ethylene oxide groups, and their mixtures. The anionic surfactants of the acid or salt type of polyoxyalkylenated carboxylic ethers are in particular those which correspond to the following formula (1):
R1- (OC2H4) n- OCH2COOA (1) in which:
R1 denotes an alkyl or alkylaryl group, and n is an integer or decimal number (average value) which can vary from 2 to 24 and preferably from 3 to 10, the alkyl radical having between 6 and 20 carbon atoms approximately, and aryl denoting preferably phenyl,
A denotes H, ammonium, Na, K, Li, Mg or a monoethanolamine or triethanolamine residue. It is also possible to use mixtures of compounds of formula (1), in particular mixtures in which the groups R1 are different.

 Among all these anionic surfactants, it is more particularly preferred to use the salts of alkyl sulphates and of alkyl ether sulphates, as well as their mixtures.

(ii) Amphoteric surfactant (s):
The amphoteric surfactants can in particular be derivatives of aliphatic secondary or tertiary amines, in which the aliphatic radical is a linear or branched chain containing 8 to 22 carbon atoms and containing at least one water-soluble anionic group (for example carboxylate, sulfonate, sulfate, phosphate or phosphonate); can

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 cite further the alkyls (C8-C20) betaines, the sulfobetaines, the alkyls (C8-C20) amidoalkyl (Ci-Ce) betaines or the alkyls (C8-C2o) amidoalkyl (Ci-Ce) sulfobetaines.

Among the amine derivatives, mention may be made of the products sold under the name Miranol, as described in patents US-2,528,378 and US-2,781,354 and of structures:
R2 -CONHCH2CH2 -N (R3) (R4) (CH2COO-) (2) in which: R2 denotes an alkyl radical derived from an R2-COOH acid present in hydrolyzed coconut oil, a heptyl, nonyl or undecyl radical , R3 denotes a beta-hydroxyethyl group and R4 denotes a carboxymethyl group; and Rs-CONHCH2CH2-N (B) (C) (3) in which:
B represents -CH2CH20X ', C represents - (CH2) z -Y', with z = 1 or 2,
X 'denotes the group -CH2CH2-COOH or a hydrogen atom
Y 'denotes -COOH or the radical -CH2 - CHOH - S03H
R5 denotes an alkyl radical of an acid Rg -COOH present in coconut oil or in hydrolyzed linseed oil, an alkyl radical, especially in C7, C9, C11 or C13, a C17 alkyl radical and its iso form , an unsaturated C17 radical.

 These compounds are classified in the CTFA dictionary, 5th edition, 1993, under the names Disodium Cocoamphodiacetate, Disodium Lauroamphodiacetate, Disodium Caprylamphodiacetate, Disodium Capryloamphodiacetate, Disodium Cocoamphodipropionate, Disodium Lauroamphodipropionphpropiodopropatephodipropodopropylphodipropionphodipropionphpropiodinepropionate

 By way of example, mention may be made of the cocoamphodiacetate sold under the trade name MIRANOL C2M concentrated by the company RHONE POULENC.

 (iii) Nonionic surfactant (s):

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Non-ionic surfactants are also compounds well known per se (see in particular in this regard "Handbook of Surfactants" by M.R.

PORTER, Blackie & Son editions (Glasgow and London), 1991, pp 116-178). They can in particular be chosen from (nonlimiting list) alcohols, alphadiols, alkylphenols or polyethoxylated, polypropoxylated or polyglycerolated fatty acids, having a fatty chain comprising for example 8 to 18 carbon atoms, the number of oxide oxide groups ethylene or propylene oxide which can range in particular from 2 to 50 and the number of glycerol groups which can range in particular from 2 to 30. Mention may also be made of copolymers of ethylene oxide and of propylene, ethylene oxide condensates and propylene on fatty alcohols; polyethoxylated fatty amides preferably having from 2 to 30 moles of ethylene oxide, polyglycerolated fatty amides comprising on average 1 to 5 glycerol groups and in particular 1.5 to 4; fatty acid esters of sorbitan oxyethylenated having from 2 to 30 moles of ethylene oxide; sucrose fatty acid esters, polyethylene glycol fatty acid esters, alkylpolyglycosides, N-alkyl glucamine derivatives, amine oxides such as alkyl oxides (C10 - C14) amines or oxides of Nacylaminopropylmorpholine. It will be noted that the alkylpolyglycosides constitute nonionic surfactants which fall particularly well within the scope of the present invention.

 Advantageously, the relative concentrations of surfactants in the composition are as follows: - the anionic surfactants (i) are present in an amount of 2 to 50% by weight, preferably 3 to 20% by weight, relative to the total weight of the composition ; - the amphoteric surfactants (ii) are present in an amount of 1 to 50% by weight, preferably from 1 to 20% by weight, relative to the total weight of the composition; the nonionic surfactants (iii) are present in an amount of 1 to 50% by weight, preferably from 1 to 20% by weight, relative to the total weight of the composition.

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 An anionic surfactant is preferably used chosen from sodium (triethanolamine or ammonium (C1-C14) alkyl sulphates, sodium, triethanolamine or ammonium oxyethylenated alkyls (C12-C14) at 2.2 moles of ethylene oxide, among the alkyl (C12-C14) sodium amido sulfates, triethanolamine or ammonium, sodium cocoyl isethionate and sodium alphaolefin (C14-C16) sulfonate mixed with: - either an amphoteric surfactant such as the amine derivatives called disodiumcocoamphodipropionate or sodiumcocoamphopropionate sold in particular by the company RHONE POULENC under the trade name "MIRANOL C2M CONC" in aqueous solution at 38% of active material or under the name MIRANOL C32; - Or an amphoteric surfactant of the zwitterionic type such as alkylamidobetaines and alkylbetaines in particular cocobetaine sold under the name "DEHYTON AB 30" in aqueous solution at 32% of MA by the company HENKEL.

CATIONIC POLYMER
The cationic polymers used in accordance with the invention generally have a weight-average molecular weight of at least 300, preferably of at least 400 and less than 10,000,000 and more particularly ranging from 500 to 2,000,000. They generally have units containing a nitrogen atom such as quaternary ammonium or amino units or their mixtures. Their cationic charge density is less than or equal to 7 meq / g and, preferably, greater than or equal to 0.05 meq / g, and more preferably, this charge density is between 0.5 and 7 meq / g. The charge density can be determined according to the Kjeldahl method or can be calculated.

 Among the cationic polymers which can be used according to the invention, mention may be made of copolymers of vinyl monomers having quaternary amine or ammonium functions with water-soluble ethylenically unsaturated monomers such as acrylamide, methacrylamide, alkyl- or dialkyl (meth) acrylamides , alkyl (meth) acrylates, vinylcaprolactone, vinylpyrrolidone; or goods of other monomers such as vinyl esters,

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 vinyl alcohol, maleic anhydride, propylene glycol, ethylene glycol. The alkyl or dialkyl groups of the amine or ammonium functions are preferably in Ci-Ce and more preferably in C1-C3.

 The amines can be primary, secondary or tertiary. Secondary and tertiary amines are preferred.

 The amino-substituted vinyl monomers can be polymerized in their amine form and then optionally quaternized. The amines can also be quaternized after the formation of the polymer. For example, the tertiary amine functions can be quaternized by reaction with a salt of formula R'X where R 'is an alkyl radical of short chain (preferably in C1-C7 and more particularly in C1-C3) and X is an anion forming a water-soluble salt with quaternary ammonium.

 Among the vinyl monomers containing amine or quaternary ammonium functions, mention may, for example, be made of vinyl compounds substituted by a group of the dialkylaminoalkyl (meth) acrylate, monoalkyl-aminoalkyl (meth) acrylate type; trialkyl-methacryloxyalkyl ammonium salts; diallyl quaternary ammonium salts; quaternary vinyl monomers having rings carrying nitrogen atoms such as pyridinium, imidazolium, quaternized pyrrolidone such as alkylvinylimidazolium, alkyl-vinylpyridinium, quaternary salts of alkylvinyl pyrrolidone. The alkyl portions of these monomers are preferably C1-C3 alkyls and more preferably C1 or C2 alkyls.

 Mention may also be made, as amino-substituted vinyl monomers, of dialkylaminoalkyl (meth) acrylates, of dialkylaminoalkyl (meth) acrylamides. The alkyl or dialkyl groups are preferably C1-C9 and more preferably C1-C3.

 The cationic polymers of the invention can comprise mixtures of vinyl monomers derived from amines and / or from monomers

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vinyl derivatives of quaternary ammoniums and / or other compatible monomers. By way of example, mention may be made of: - the copolymers of 1-vinylpyrrolidone and of 1-vinyl-3-methylimidazolium salt (chloride for example) (called Polyquaternium-16 in the
CTFA) such as those sold under the name LUVIQUAT by the company BASF; copolymers of 1-vinyl-2-pyrrolidone and of dimethylaminoethyl methacrylate (called Polyquaternium-11 according to the CTFA) such as those sold under the name GAFQUAT (for example GAFQUAT
755N) by GAF CORPORATION; - homopolymers of dimethyl-diallylammonium chloride (Polyquaternium-6 according to CTFA) and copolymers of acrylamide and dimethyl-diallylammonium chloride (Polyquaternium-7 according to CTFA) such as those sold under the name MERQUAT 550 and MERQUAT S by the Society
MERCK; - the salts of mineral acids of aminoalkyl esters of homo and of copolymers of unsaturated carboxylic acids having from 3 to 5 carbon atoms such as those described in patent USP 4,009,256.

 Among the cationic polymers which can be used, mention may also be made of cationic polysaccharides such as cationic cellulose derivatives and cationic starch derivatives.

où : Among the cationic polysaccharides, mention may be made of the polymers of formula:

or :

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H is a residue of anhydroglucose such as starch or a residue of cellulosic anhydroglucose;
R is alkylene, oxyalkylene, polyoxyalkylene or hydroxyalkylene or mixtures thereof;
R1, R2and R3, identical or different, denote an alkyl, aryl, alkylaryl, arylalkyl, alkoxyalkyl or alkoxyaryl group; each group containing up to 18 carbon atoms and the total number of carbon atoms per cation unit is preferably less than or equal to 20.

 G- is an anion resulting from the quaternization of the amine NR1R2R3.

 Among the cationic cellulosic polymers, mention may be made of those sold by the company AMERCHOL CORP. under the names JR and LR such as the quaternary hydroxyethylcellulose salts obtained by reaction with an epoxide substituted with a trimethylammonium (polyquaternium-10 according to the CTFA). Mention may also be made of the quaternary hydroxyethyl cellulose salts obtained by reaction with an epoxide substituted with lauryl-dimethylammonium (polyquaternium-24 according to the CTFA) such as those sold under the name POLYMER LM200 by AMERCHOL CORP.

 Mention may also be made, as cationic polymers which can be used according to the invention, of cationic guar gum derivatives such as guar hydroxypropyltrimonium chloride sold in particular under the names JAGUAR C13S, JAGUAR C162 by the company RHODIA CHIMIE.

 Mention may also be made of quaternary cellulose ethers such as those described in the USP patent. 3,962,418 and etherified cellulose and starch copolymers such as those described in US Patent 3,958,581.

 The cationic polymers are present, in the compositions according to the invention, in proportions ranging, preferably, from 0.0001 to 5% by weight

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 and preferably from 0.001 to 3% by weight relative to the total weight of the composition.

 The cosmetically acceptable aqueous medium can consist solely of water or of a mixture of water and one or more cosmetically acceptable solvents or by one or more cosmetically acceptable solvents, such as a lower C1-C4 alcohol, such as ethanol, isopropanol, tert-butanol, n-butanol; alkylene glycols such as propylene glycol, glycol ethers.

Preferably, the cosmetically acceptable medium contains water. The water preferably represents from 30 to 98% by weight and preferably from 50 to 98% by weight relative to the total weight of the composition.

 The detergent compositions according to the invention have a final pH generally between 3 and 10. Preferably, this pH is between 4 and 8. The adjustment of the pH to the desired value can be carried out conventionally by adding a base ( organic or mineral) in the composition, for example ammonia or a primary, secondary or tertiary (poly) amine such as monoethanolamine, diethanolamine, triethanolamine, isopropanolamine or 1,3-propane diamine, or alternatively by addition an acid, preferably a carboxylic acid such as for example citric acid.

 The compositions in accordance with the invention may contain, in addition to the combination defined above, viscosity regulating agents such as electrolytes, or thickening agents (associative or non-associative). Mention may in particular be made of sodium chloride, sodium xylene sulfonate, scleroglucans, xanthan gums, fatty acid alkanolamides, alkyl ether carboxylic acid alkanolamides optionally oxyethylenated with up to 5 moles of oxide ethylene such as the product sold under the name "AMINOL A15" by the company CHEM Y, crosslinked polyacrylic acids and copolymers of acrylic acid / C10-C30 alkyl acrylates crosslinked. These viscosity regulating agents are used in the compositions

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 according to the invention in proportions which can range up to 10% by weight relative to the total weight of the composition.

 The compositions in accordance with the invention may also preferably contain up to 5% of pearlescent or opacifying agents well known in the state of the art such as for example fatty alcohols higher than C16, acylated chain derivatives fatty substances such as ethylene glycol or polyethylene glycol monostearates or distearates, fatty chain ethers such as, for example, distearyl ether or 1- (hexadecyloxy) -2-octadecanol.

 The compositions in accordance with the invention may optionally also comprise at least one additive chosen from foam synergists such as C10-C18 1,2-alkanediols or fatty alkanolamides derived from mono or diethanolamine, silicone sunscreens or no, cationic surfactants, anionic, nonionic, amphoteric or cationic polymers other than those of the invention, proteins, protein hydrolysates, hydroxy acids, vitamins, provitamins such as panthenol, volatile silicones or no, linear or cyclic, crosslinked or not, organomodified or not.

 Of course, a person skilled in the art will take care to choose this or these optional additional compounds and / or their amounts in such a way that the advantageous properties intrinsically attached to the combination in accordance with the invention are not or not substantially altered by the or the additions envisaged.

 These additives are optionally present in the composition according to the invention in proportions which can range from 0.0001 to 20% by weight relative to the total weight of the composition. The quantity of each additive is easily determined by a person skilled in the art according to its nature and its function.

 These compositions can be in the form of more or less thickened liquids, creams or gels and they are mainly suitable for

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 washing, caring for keratin materials, in particular the hair and the skin and even more particularly the hair.

 When the compositions in accordance with the invention are used as conventional shampoos, they are simply applied to wet hair and the foam generated by massage or friction with the hands is then removed, after a possible pause time, by rinsing with water. water, the operation can be repeated one or more times.

 The subject of the invention is also a process for washing and conditioning keratin materials, such as in particular the hair, consisting in applying a composition as defined above, then in rinsing with water after a possible time of pause.

 The compositions according to the invention are preferably used as shampoos for washing and conditioning the hair and they are applied in this case to damp hair in effective amounts for washing them, this application being followed by a rinse with water.

 The compositions in accordance with the invention can also be used as a shower gel for washing and conditioning the hair and / or the skin, in which case they are applied to wet skin and / or hair and are rinsed off after application.

 The compositions of the invention can also be used in leave-in, and in particular in lotions, in gels, in foams or in aerosols.

 Concrete, but in no way limiting, examples illustrating the invention will now be given.

EXAMPLES 1 and 2:
The following two shampoos are produced:

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à 38 % MA...............................................................6,25 g
Polymère cationique (1). .................................................. 3,125 g
Phosphate de calcium en poudre (2)............................................3 g
Agent de pH qs pH 7
Eau déminéralisée qsp 100 g
Shampooing 2
Lauryl sulfate de triéthanolamine à 40 % MA...............................31,2 g
Alkyl (C1/C9) polyglucoside [1,4] en solution aqueuse à 40 %..................................................................6,25 g
Polymère cationique (1). ........................................................ 3,125 g
Phosphate de calcium en poudre (2)............................................3 g
Agent de pH qs pH 7
Eau déminéralisée qsp 100 g (1) Copolymère de Chlorure de diméthyl diallyl ammonium/acrylamide en solution aqueuse à 8 % MA (MERQUAT 550 de NALCO) (2) Calcium phosphate basic (SIGMA-ALDRICH FINE CHEMICAL)
Les compositions présentent une texture agréable lors de l'application sur les cheveux humides. Sa rinçabilité est bonne. Les cheveux séchés ne sont pas chargés et leur mise en forme est aisée.Shampoo 1 Lauryl sulphate of triethanolamine in aqueous solution at 40% MA. .................................... 31.2 g Cocoyl amidopropyl betaine in aqueous solution

at 38% MA .............................................. ................. 6.25 g
Cationic polymer (1). .................................................. 3.125 g
Calcium phosphate powder (2) .......................................... ..3 g
PH agent qs pH 7
Demineralized water qs 100 g
Shampoo 2
40% triethanolamine lauryl sulfate MA ............................... 31.2 g
Alkyl (C1 / C9) polyglucoside [1,4] in 40% aqueous solution ................................ .................................. 6.25 g
Cationic polymer (1). .................................................. ...... 3.125 g
Calcium phosphate powder (2) .......................................... ..3 g
PH agent qs pH 7
Demineralized water qs 100 g (1) Copolymer of Dimethyl diallyl ammonium chloride / acrylamide in aqueous solution at 8% MA (MERQUAT 550 from NALCO) (2) Calcium phosphate basic (SIGMA-ALDRICH FINE CHEMICAL)
The compositions have a pleasant texture when applied to damp hair. Its rinsability is good. Dried hair is not loaded and its shaping is easy.

Claims (20)

1. Cosmetic composition, in particular hair composition, comprising, in a cosmetically acceptable medium: (a) solid particles containing at least 10% by weight of calcium phosphate; (b) at least one anionic surfactant, (c) at least one amphoteric, cationic and / or nonionic surfactant and, (d) at least one cationic polymer whose cationic charge density is less than or equal to 7 meq / g and , preferably, greater than or equal to 0.05 meq / g.  2. Composition according to Claim 1, characterized in that the particles containing at least 10% by weight of calcium phosphate have a number-average primary size of between 2 nm and 2 microns, more preferably between 5 and 500 nm, and more preferably still between 10 and 250 nm.  3. Composition according to claim according to any one of the preceding claims, characterized in that the particles contain at least 50% by weight of calcium phosphate, better still at least 70% by weight, and even better still more than 90% by weight of calcium phosphate.  4. Composition according to any one of the preceding claims, characterized in that the particles are particles of substantially pure calcium phosphate.  5. Composition according to any one of the preceding claims, characterized in that the calcium phosphates are chosen from monobasic calcium phosphate (Ca (H2P04) 2), dibasic calcium phosphate (CaHP04), calcium phosphate <Desc / Clms Page number 19>  tribasic (Ca5HP3013), calcium meta phosphate (Ca (P03) 2) and calcium pyrophosphate (Ca2P2O7) and their mixtures.  6. Composition according to any one of the preceding claims, characterized in that the particles containing calcium phosphate are used in an amount of between 0.01% and 30% by weight, and preferably between 0.05% and 5% by weight relative to the total weight of the composition.  7. Composition according to any one of claims 1 to 5, characterized in that the said anionic surfactant (s) are present in an amount of 2 to 50% by weight, preferably from 3 to 20% by weight, relative to the weight total of the composition.  8. Composition according to any one of claims 1 to 6, characterized in that the said amphoteric surfactant (s) are present in an amount from 1 to 50% by weight, preferably from 1 to 20% by weight, relative to the weight total of the composition.  9. Composition according to any one of claims 1 to 6, characterized in that the said non-ionic surfactant (s) are present in an amount of 1 to 50% by weight, preferably from 1 to 20% by weight, relative to the total weight of the composition.  10. Composition according to any one of the preceding claims, characterized in that the weight ratio of concentrations of the anionic surfactant (s) to cationic, nonionic and / or amphoteric surfactants is greater than or equal to 1.  11. Composition according to any one of claims 1 to 6 and 9, characterized in that the anionic surfactants are chosen from the salts of the following compounds: alkylsulphates, alkylethersulphates, alkylamidoethersulphates, alkylarylpolyethersulphates, monoglycerides sulphates; the <Desc / Clms Page number 20>  alkylsulfonates, alkylphosphates, alkylamidesulfonates, alkylarylsulfonates, aolefin-sulfonates, paraffin-sulfonates; alkylsulfosuccinates, alkylethersulfosuccinates, alkylamidesulfosuccinates; alkyl sulfosuccinamates; alkyl sulfoacetates; alkyl etherphosphates; acylsarcosinates; acylisethionates and N-acyltaurates, the alkyl or acyl radical of all these different compounds preferably containing from 12 to 20 carbon atoms, and the aryl radical preferably denoting a phenyl or benzyl group. Among the anionic surfactants which can still be used, mention may also be made of the salts of fatty acids such as the salts of oleic, ricinoleic, palmitic, stearic acids, coconut oil or hydrogenated coconut oil acids; acyl-lactylates whose acyl radical contains 8 to 20 carbon atoms, alkyl D galactoside uronic acids and their salts as well as polyoxyalkylenated carboxylic ether acids and their salts, (C6-C24) -aryl (C6) alkyl acids -C24) polyoxyalkylenated ether-carboxyls, polyoxyalkylenated (C6-C24) amidoether-carboxylic acids and their salts, in particular those comprising from 2 to 50 ethylene oxide groups, and mixtures thereof.  12. Composition according to the preceding claim, characterized in that the said anionic surfactant is chosen from alkyl (C12-C14) sodium sulfates, from triethanolamine or from ammonium, from alkyl (C12-C14) from sodium ethersulfates, from triethanolamine or of oxyethylenated ammonium to 2.2 moles of ethylene oxide, among the alkyl (C12-C14) sodium amido sulfates, triethanolamine or ammonium, sodium cocoyl isethionate and alphaolefin (C14-C16) sodium sulfonate.  13. Composition according to any one of claims 1 to 5,7 and 9, characterized in that said amphoteric surfactant is chosen from derivatives of aliphatic secondary or tertiary amines, in which the aliphatic radical is a linear or branched chain containing 8 to 22 carbon atoms and containing at least one anionic group, (C8-C20) alkyl betaines, sulfobetaines, (C8-C20) alkyl amidoalkyl (Ci-Ce) betaines or (C8C20) alkyl amidoalkyl (Ci -Ce) sulfobetaines. <Desc / Clms Page number 21>  14. Composition according to any one of claims 1 to 5.8 and 9, characterized in that the said nonionic surfactant is chosen from alcohols, alpha-diols, alkylphenols or polyethoxylated, polypropoxylated or polyglycerolated fatty acids, having a fatty chain comprising for example 8 to 18 carbon atoms, the number of ethylene oxide or propylene oxide groups possibly ranging from 2 to 50 and the number of glycerol groups possibly ranging from 2 to 30.  15. Composition according to any one of the preceding claims, characterized in that the cationic charge density of cationic polymer varies from 0.5 to 7 meq / g.  16. Composition according to any one of the preceding claims, characterized in that the cationic polymer is chosen from the group consisting of: a) copolymers of vinyl monomers having primary, secondary, tertiary amine functions or quaternary ammoniums b) cationic polysaccharides derived from starch or derived from cellulose; c) cationic polymers derived from guar gum; d) quaternary cellulose ethers, etherified cellulose and starch copolymers.  17. Composition according to any one of the preceding claims, characterized in that the cationic polymer is present in proportions ranging from 0.0001 to 5% by weight and preferably from 0.001 to 3% by weight relative to the total weight of the composition.  18. Composition according to any one of the preceding claims, characterized in that it also comprises at least one additive chosen from foam synergists such as C1-C18 1,2-alkanediols or fatty alkanolamides derived from mono or diethanolamine, sunscreens, silicone or not, cationic surfactants, anionic polymers, <Desc / Clms Page number 22>  nonionic, amphoteric or cationic other than those of the invention, proteins, protein hydrolysates, hydroxy acids, vitamins, provitamins such as panthenol, volatile or non-volatile, linear or cyclic silicones, crosslinked or not, organomodified or not.  19. Use of a composition as defined in any one of claims 1 to 18 as a shampoo.  20. A method of washing and conditioning the hair consisting in applying an effective amount of a composition as defined in any one of claims 1 to 18, then in rinsing with water after a possible exposure time.