SOLID COMPOSITION COMPRISING A CATIONIC SURFACTANT, A STARCH AND A SPECIFIC QUANTITY OF C1-6 CARBOXYLIC ACID

Abstract

The present invention relates to a solid composition intended in particular for the care of keratin fibers, in particular human keratin fibers such as hair, and which comprises a cationic surfactant, a starch and a specific amount of C1-6 carboxylic acid. The invention also relates to a packaging article containing said solid composition, as well as methods for the cosmetic treatment of keratin fibers, in particular human keratin fibers such as hair, using said solid composition or said packaging article. The invention further relates to the use of said solid composition or said packaging article for the care of keratin fibers, in particular human keratin fibers such as hair.

Description

Title of the invention: SOLID COMPOSITION COMPRISING A CATIONIC SURFACTANT, A STARCH AND A SPECIFIC QUANTITY OF C CARBOXYLIC ACID 16

[0001] The present invention relates to a solid composition intended in particular for the cosmetic treatment, and more particularly for the care, of keratin fibers, in particular human keratin fibers such as hair, and which comprises at least one cationic surfactant, at least one starch and a specific quantity of at least one C1-6 carboxylic acid.

[0002] The invention also relates to a packaging article containing said solid composition, as well as methods for the cosmetic treatment of keratin fibers, in particular human keratin fibers such as hair, using said solid composition or said packaging article.

[0003] The invention further relates to the use of said solid composition or said packaging article for the cosmetic treatment, preferably the care, of keratin fibers, in particular human keratin fibers such as hair.

[0004] In the field of hair hygiene, care (or conditioning) products for keratin fibers are generally intended to condition said fibers to provide them with good cosmetic properties. Conventional products, such as conditioners, are most often in a more or less thickened liquid form. Due to their liquid texture, these products can, however, have various drawbacks, and in particular prove to be difficult to dose.

[0005] Indeed, the more liquid they are, the more they tend to escape between the fingers, making their dosage difficult and leading to waste. These products can also leak out of their packaging, which can cause inconvenience to the consumer when these products come into contact with clothing or objects, for example when moving.

[0006] In order to modify the texture of these products, and in particular to make it more compact, thickeners are generally used. The addition of these compounds, however, is often to the detriment of the cosmetic effects of the compositions. The use of these thicker compositions also requires a lot of rinsing water in order to eliminate the excess product on the fibers. However, in many countries where access to water is restricted, the rinsing time and consequently the quantity of water necessary to properly rinse the product are key indicators of the usability of a composition.

[0007] In order to overcome some of these problems, new solid cosmetic formulations, in particular conditioners in the form of granules or solid powder, have been developed. Such formulations are described, for example, in US 2021 / 007960. However, these new formulations are not always entirely satisfactory. Those in the form of loose powder can indeed pose problems of volatility, gripping and / or dosage. Those in the form of agglomerates, such as granules for example, can tend to disintegrate or disintegrate with difficulty in the presence of water, adversely impacting their use and their spreading on the keratin fibers, and do not always allow satisfactory care to be obtained. They can also be difficult to remove when rinsing and sometimes even leave residues on the fibers that are unpleasant for the consumer.

[0008] Conditioners in powder or particle form may lose fluidity during storage due to the clumping of the solid unit particles together, which may negatively impact the qualities of use.

[0009] These formulations may also not give complete satisfaction in terms of cosmetic performance, in particular in terms of flexibility, feel, softness, detangling, smoothing, and shine.

[0010] Thus, there is a real need to provide a composition in solid form having an improved environmental profile, i.e. requiring little water throughout its use. The composition must not only be easy to grasp and disintegrate easily, but it must also be quick to rinse without leaving residue on the keratin fibers. With regard to solid compositions in the form of powders or particles in particular, these must not clump together during storage so as not to deteriorate the qualities of use.

[0011] The composition must also provide good cosmetic properties, particularly in terms of flexibility, feel, softness, coating, shine and detangling.

[0012] It has now been discovered that a solid composition comprising at least one cationic surfactant, at least one starch and at least one C, 6 carboxylic acid in a particular content makes it possible to achieve the objectives set out above, and in particular to propose a composition in solid form combining good conditioning power, without requiring large quantities of water.

[0013] The present invention therefore relates to a solid composition comprising: i) one or more cationic surfactants, ii) one or more starches, iii) at least 10% by weight of one or more C1-6 carboxylic acids, relative to the total weight of the composition.

[0014] Said solid composition may more particularly be a cosmetic composition, in particular a hair composition, and advantageously, a hair conditioning composition.

[0015] The particular combination of the compounds of the invention makes it possible to obtain a solid composition that is easy to sample, handle and dose. Indeed, the composition thus obtained has a cohesion or granulation such that the gripping and dosing properties are improved, while avoiding unwanted agglomerates that negatively impact the qualities of use. The composition can then be packaged in the form of a single dose, a particularly interesting form, for example, when traveling or practicing a sport (lighter bags, limiting the risk of leakage, reducing waste).

[0016] Furthermore, this composition disintegrates quickly on contact with water and allows easy and rapid spreading and homogeneous distribution on the keratin fibers comparable to those of a conventional liquid conditioner composition.

[0017] The presence of the C1-6 carboxylic acid associated with a starch also allows a more rapid and complete dissolution of the composition according to the invention.

[0018] The composition according to the invention also makes it possible to obtain good coating of the keratin fibers, with a homogeneous and slippery finish.

[0019] Furthermore, the composition of the invention rinses quickly without leaving unpleasant residues on the fibers and gives them a natural and clean feel after rinsing. The fibers treated with the composition of the invention have good cosmetic properties, particularly in terms of softness, suppleness, and feel. They are also well individualized and thus easier to untangle.

[0020] The present invention also relates to a process for the cosmetic treatment, in particular for the care of keratin fibres, in particular human keratin fibres such as hair, comprising the application to said keratin fibres of a solid composition as defined below, the solid composition being applied directly to said keratin fibres or after having been previously moistened with water.

[0021] The present invention further relates to the use of a solid composition as defined below for cosmetic treatment, preferably the care of keratin fibers, in particular human keratin fibers such as hair.

[0022] The present invention also relates to a packaging article comprising - an envelope defining at least one cavity, the envelope comprising one or more water-soluble and / or fat-soluble compounds; - a solid composition as defined above; it being understood that the solid composition is located in one of the cavities defined by the envelope.

[0023] This packaging article makes it possible in particular to solve the problems of dosing the solid composition. It also facilitates its storage and transport. In particular, the packaging article of the invention offers better protection of the composition against humidity.

[0024] The packaging article can also make it possible to obtain a final composition for caring for keratin fibers that is thicker in the hand, which can be presented in the form of a cream, without lumps, without leaving residue on the hair after rinsing.

[0025] The packaging article can thus improve, in particular facilitate, the distribution of the composition on the keratin fibers.

[0026] The packaging article can make it possible to better control the dose of composition used on the keratin fibers, thus reducing the risk of waste.

[0027] The packaging article also makes it possible to minimize the risks of disintegration of the composition.

[0028] The invention also relates to the use of the above packaging article for cosmetic treatment, preferably for the care of keratin fibers, in particular human keratin fibers such as hair.

[0029] The invention also relates to a method for cosmetic treatment, in particular care, of keratin fibers, in particular human keratin fibers such as hair, comprising a step of implementing at least one packaging article as defined above.

[0030] Preferably, said cosmetic treatment method comprises the following steps: a) mixing the packaging article in a composition capable of dissolving, in whole or in part, the envelope of said packaging article, b) applying the composition obtained in step a) to the keratin fibers, c) possibly leave to stand, d) rinsing said keratin fibers, e) optionally drying said keratin fibers.

[0031] Other objects, characteristics, aspects and advantages of the invention will appear even more clearly on reading the description and the examples which follow.

[0032] In what follows, and unless otherwise indicated, the limits of a domain of values are included in this domain, in particular in the expressions “between” and “ranging from ... to ...”.

[0033] Furthermore, the expression “at least one” used in the present description is equivalent to the expression “one or more”.

[0034] Preferably, the solid composition according to the invention (final composition, after drying) has a water activity of less than 0.75, better still less than 0.72, even better still less than 0.70. The water activity, Aw, represents the proportion of bound water relative to free water which is conducive to the development of microorganisms. The value varies between 0 and 1. The activity is 0 for a completely dry product and it is 1 for pure water.

[0035] The solid composition according to the invention may comprise water added during its preparation and / or water which may come from the raw materials used during the preparation of said composition.

[0036] The solid composition according to the invention may be in the form of powder, paste, particles (for example spherical particles such as small beads or granules), compressed tablet, stick or loaf. Preferably, the composition according to the invention is in the form of powder or particles.

[0037] By "powder" is meant a composition in powder form, preferably essentially free of dust (or fine particles). In other words, the particle size distribution is such that the weight ratio of particles which have a size less than or equal to 50 μm (fines ratio), preferably less than or equal to 45 μm (fines ratio) is advantageously less than or equal to 5% by weight, preferably less than 3% by weight and more particularly less than 1% by weight, relative to the total weight of particles (particle size evaluated using a RETSCH AS 200 DIGIT granulometer; Oscillation height: 1.25 mm / sieving time: 5 minutes).

[0038] By "paste" is meant a composition having a viscosity greater than 0.5 Pa.s (5 poises) and preferably greater than 1 Pa.s (10 poises), measured at 25°C and at a shear rate of 1 s 1 ; this viscosity can be determined using a Coneplan rheometer.

[0039] By “particles” is meant small fractionated objects formed of solid particles aggregated together, of varying shapes and sizes. They may be of regular or irregular shape. In particular, they may be spherical (such as granules, pellets, balls), square, rectangular, or elongated such as rods. Spherical particles are particularly preferred.

[0040] Advantageously, the solid composition is in powder form.

[0041] Advantageously, the size of the powders or particles is included, in its largest dimension, between 30 pm and 5 mm, and more particularly between 45 pm and 2 mm, better between 50 pm and 1 mm, even better between 60 and 700 pm.

[0042] Advantageously, the solid composition is in powder form, the size of the powders being, in its largest dimension, between 30 μm and 5 μm. mm, and more particularly between 45 pm and 2 mm, better between 50 pm and 1 mm, even better between 60 and 700 pm.

[0043] When the solid composition according to the invention is not in the form of powder or particles, it advantageously has a penetration force at 25°C and under 1.013 x 105 Pa (1 atm), greater than or equal to 200 g, preferably greater than or equal to 300 g, more preferably greater than or equal to 400 g, and better still greater than or equal to 500 g. The penetration force is determined by penetrometry. The texture analysis measurements are carried out at 25°C using a Stable Micro Systems TA.XT Plus texturometer. The penetrometry experiments are carried out with a metal rod equipped with a screwed tip, said tip being a 2 mm P / 2N needle for the upper part, connected to the measuring head. The piston sinks into the sample at a constant speed of 1 mm / s, to a height of 5 mm. The force exerted on the piston is recorded and the average value of the force is calculated.

[0044] The solid composition according to the invention may be in the form of a compressed solid composition, in particular using a manual or mechanical press. Preferably, the hardness of the compressed solid composition is between 10 and 300 N, better still between 15 and 200 N, even better still between 15 and 100 N.

[0045] The density of the solid composition according to the present invention is preferably between 0.1 and 1, more preferably between 0.2 and 0.8, and better still between 0.3 and 0.7. It is measured in the following manner: A determined quantity (mass, m) of powder is placed in a graduated cylinder. The cylinder is then tapped 2500 times automatically. The volume (v) thus obtained is read from the cylinder and the density (d) is then determined according to the formula d=m / v.

[0046] Cationic surfactants i) The solid composition according to the present invention comprises one or more cationic surfactants i).

[0047] The term "cationic surfactant" means a positively charged surfactant when it is contained in the compositions according to the invention. This surfactant may carry one or more positive permanent charges or contain one or more cationizable functions within the compositions according to the invention.

[0048] The cationic surfactants are advantageously chosen from primary, secondary or tertiary fatty amines, optionally polyoxyalkylenated; quaternary ammonium salts, and mixtures thereof.

[0049] As quaternary ammonium salts, we can notably cite:

[0050] quaternary ammonium salts of formula (Ia): R / in which: the groups R8 to Ru, which may be identical or different, represent a linear or branched aliphatic group, comprising from 1 to 30 carbon atoms, or an aromatic group such as aryl or alkylaryl, at least one of the groups R8 to Ru comprising from 8 to 30 carbon atoms, preferably from 12 to 24 carbon atoms; the aliphatic groups may comprise heteroatoms such as in particular oxygen, nitrogen, sulfur and halogens; and X is an anion chosen in particular from the group of halides, phosphates, acetates, lactates, alkyl(Ci-C4)sulfates, alkyl(Ci-C4)sulfonates or alkyl(Ci-C4)arylsulfonates.

[0051] The aliphatic groups R8 to Ru may be chosen from C1-C30 alkyl, C1-C30 alkoxy, polyoxyalkylene (C2-C6), C1-C30 alkylamide, C1-C22 alkylamido(C2-C6)alkyl, C1-C22 alkylacetate and C1-C30 hydroxyalkyl groups.

[0052] Mention may in particular be made of halides, in particular chlorides, of tetraalkylammonium such as dialkyldimethylammonium or alkyltrimethylammonium chlorides in which the alkyl group contains from 12 to 22 carbon atoms, in particular behenyltrimethylammonium, distearyldimethylammonium, cetyltrimethylammonium and benzyldimethylstearylammonium chlorides.

[0053] Mention may also be made of halides, and in particular chlorides, of palmitylami-dopropyltrimethylammonium or stearamidopropyldimethyl-(myristyl acetate)-ammonium; in particular the product marketed under the name CERAPHYL® 70 by the company VAN DYK.

[0054] the quaternary ammonium salts of imidazoline of formula (IIa): ^3 Y ,-CHfCH,.......CO—R„ I x " 1 M * <Ha) LJX | in which: R[2 represents an alkenyl or alkyl group containing from 8 to 30 carbon atoms, for example derived from tallow fatty acids, Rn represents a hydrogen atom, a CrC4 alkyl group or an alkenyl or alkyl group containing from 8 to 30 carbon atoms, R[4 represents a CrC4 alkyl group, Ris represents a hydrogen atom or a C1-C4 alkyl group, X is an anion, in particular chosen from the group of halides, phosphates, acetates, lactates, alkyl(Ci-C4)sulfates, alkyl(Ci-C4)sulfonates or alkyl(Ci-C4)arylsulfonates.

[0055] Preferably, Rn and Rn denote a mixture of alkenyl or alkyl groups comprising from 12 to 21 carbon atoms, for example derived from tallow fatty acids, R[4 denotes a methyl group, R[5 denotes a hydrogen atom. Such a product is for example marketed under the name REWOQUAT® W75 or W90 by the company Evonik.

[0056] the quaternary di- or triammonium salts of formula (Ilia): (H [a) in which: - Ri6 denotes an alkyl group comprising from 16 to 30 carbon atoms, optionally hydroxylated and / or optionally interrupted by one or more oxygen atoms, - Rn denotes hydrogen, an alkyl group containing 1 to 4 carbon atoms or a group -(CH2)3-N+(Ri6a)(Ri7a)(Ri8a), R16a, Rna, R18a, identical or different denoting hydrogen or an alkyl group containing 1 to 4 carbon atoms, - Ri8, Rw, R7o and R2i, identical or different, denote hydrogen or an alkyl group containing 1 to 4 carbon atoms, and - X is an anion chosen in particular from the group of halides, acetates, phosphates, nitrates, alkyl(Ci-C4)sulfates, alkyl(Ci-C4)sulfonates and alkyl(Ci-C4)arylsulfonates, in particular methylsulfate and ethylsulfate.

[0057] Such compounds are for example Finquat CT-P (Quaternium 89) and Finquat CT (Quaternium 75) offered by the company FINETEX.

[0058] quaternary ammonium salts containing one or more ester functions of the following formula (IVa): (CJMJk--FU O -| * RX OW FU in which: - R22 is chosen from C1-C6 alkyl groups and hydroxyalkyl or di- C1-C6 hydroxyalkyl, - R23 is chosen from the group R26-C(=O)-; the linear or branched, saturated or unsaturated C1-C22 hydrocarbon groups R27; and the hydrogen atom, - R25 is chosen from the group R28-C(=O)-; the linear or branched, saturated or unsaturated C1-C6 hydrocarbon groups R29; and the hydrogen atom, - R24 R26 and R28, identical or different, are chosen from C7-C2i hydrocarbon groups, linear or branched, saturated or unsaturated, - r, s and t, identical or different, are integers ranging from 2 to 6, - rl and tl, identical or different, are worth 0 or 1, - y is an integer ranging from 1 to 10, - x and z, identical or different, are integers ranging from 0 to 10, - X is an anion, it being understood that r2 + rl = 2r and tl +12 = 2t, and that the sum x + y + z is from 1 to 15, provided that when x = 0 then R23 denotes R27 and that when z = 0 then R25 denotes R29.

[0059] The alkyl groups R22 may be linear or branched, preferably linear. Preferably, R22 denotes a methyl, ethyl, hydroxyethyl or dihydroxypropyl group, and more particularly a methyl or ethyl group.

[0060] Advantageously, the sum x + y + z is worth from 1 to 10.

[0061] When R23 is a hydrocarbon group R27, it may comprise from 12 to 22 carbon atoms, or else comprise from 1 to 3 carbon atoms.

[0062] When R25 is a hydrocarbon group R29, it preferably has 1 to 3 carbon atoms.

[0063] Advantageously, R24, R26 and R28, identical or different, are chosen from linear or branched, saturated or unsaturated Cn-C2i hydrocarbon groups, and more particularly from linear or branched Cn-C2i alkyl and alkenyl groups.

[0064] Preferably, x and z, identical or different, are 0 or 1.

[0065] Advantageously, y is equal to 1.

[0066] Preferably, r, s and t, identical or different, are equal to 2 or 3, and even more particularly are equal to 2.

[0067] The anion X is preferably a halide, preferably chloride, bromide or iodide, an alkyl(CrC4)sulfate, an alkyl(Ci-C4)sulfonate or an alkyl(CrC4)aryl-sulfonate, a methanesulfonate, a phosphate, a nitrate, a tosylate, an anion derived from an organic acid such as an acetate or a lactate or any other anion compatible with ester-functional ammonium. The anion X- is more particularly a chloride, a methylsulfate or an ethylsulfate.

[0068] More particularly, the ammonium salts of formula (IVa) are used in the composition according to the invention, in which: - R22 denotes a methyl or ethyl group, - x and y are equal to 1, - z is equal to 0 or 1, - r, s and t are equal to 2, - R23 is chosen from the group R26-C(=O)-; methyl, ethyl or hydrocarbon groups in C14-C22> the hydrogen atom, - R25 is chosen from the group R28-C(=O)-; the hydrogen atom, - R24, R26 and R28, identical or different, are chosen from C13-C17 hydrocarbon groups, linear or branched, saturated or unsaturated, and preferably from C13-C17 alkyl and alkenyl groups, linear or branched, saturated or unsaturated.

[0069] Advantageously, the hydrocarbon groups are linear.

[0070] Among the compounds of formula (IVa) there may be mentioned salts, in particular diacyloxyethyldimethylammonium chloride or methylsulfate, diacyloxyethyl-hydroxyethylmethylammonium, monoacyloxyethyldihydroxyethyl methylammonium, triacyloxyethylmethylammonium, monoacyloxyethylhydroxyethyl-dimethylammonium, and mixtures thereof. The acyl groups preferably have 14 to 18 carbon atoms and are more particularly derived from a vegetable oil such as palm or sunflower oil. When the compound contains several acyl groups, these may be identical or different.

[0071] These products are obtained, for example, by direct esterification of triethanolamine, triisopropanolamine, alkyldiethanolamine or alkyldiisopropanolamine, optionally oxyalkylenated, on fatty acids, or on mixtures of fatty acids, in particular of vegetable or animal origin, or by transesterification of their methyl esters. This esterification may be followed by quaternization using an alkylating agent such as an alkyl halide, preferably methyl or ethyl, a dialkyl sulfate, preferably methyl or ethyl, methyl methanesulfonate, methyl para-toluenesulfonate, glycol or glycerol chlorohydrin. Such compounds are, for example, marketed under the names DEHYQUART® by the company HENKEL, STEPANQUAT® by the company STEPAN, NOXAMIUM® by the company CECA, REWOQUAT® WE 18 by the company Evonik.

[0072] The composition according to the invention may contain, for example, a mixture of quaternary ammonium mono-, di- and triester salts with a majority by weight of diester salts. It is also possible to use the ammonium salts containing at least one ester function described in patents US-A-4874554 and US-A-4137180. It is also possible to use behenoylhydroxypropyltrimethylammonium chloride, for example, offered by the company KAO under the name Quartamin BTC 131.

[0073] Preferably, ammonium salts containing at least one ester function contain two ester functions.

[0074] As fatty amines, amidoamines may be mentioned. The amidoamines according to the invention can be chosen from fatty amidoamines, the fatty chain being able to be carried by the amine group or by the amido group.

[0075] Amidoamine means a compound comprising at least one amide function and at least one primary, secondary or tertiary amine function.

[0076] Fatty amidoamine is understood to mean an amidoamine comprising, in general, at least one C6-C30 hydrocarbon chain. Preferably, the fatty amidoamines useful according to the invention are not quaternized.

[0077] Preferably, the fatty amidoamines useful according to the invention are not (poly)oxyalkylenated.

[0078] Among the fatty amidoamines useful according to the invention, mention may be made of the amidoamines of the following formula (Va): RCONHR”N(R')2(Va) in which: - R represents a linear or branched, saturated or unsaturated and substituted or unsubstituted monovalent hydrocarbon radical having from 5 to 29 carbon atoms, preferably from 7 to 23 carbon atoms, and in particular a linear or branched C5-C29, preferably C7-C23 alkyl radical, or a linear or branched C5-C29, preferably C7-C23 alkenyl radical; - R' ' represents a divalent hydrocarbon radical having less than 6 carbon atoms, preferably 2 to 4 carbon atoms, better still, 3 carbon atoms; and - R', identical or different, represent a monovalent hydrocarbon radical having less than 6 carbon atoms, preferably from 1 to 4 carbon atoms, linear or branched, saturated or unsaturated and substituted or unsubstituted, preferably a methyl radical.

[0079] The fatty amidoamines of formula (Va) are, for example, chosen from oleamidopropyl dimethylamine, stearamidopropyl dimethylamine marketed by the company INOLEX CHEMICAL COMPANY under the name LEXAMINE S13, isostearamidopropyl dimethylamine, stearamidoethyl dimethylamine, laura-midopropyl dimethylamine, myristamidopropyl dimethylamine, behenami-dopropyl dimethylamine, dilinoleamidopropyl dimethylamine, palmitamidopropyl dimethylamine, ricinoleamindopropyl dimethylamine, soyamidopropyl dimethylamine, avocadoamidopropyl dimethylamine, cocamidopropyl dimethylamine, minkamidopropyl dimethylamine, oatamidopropyl dimethylamine, sesami-dopropyl dimethylamine, tallamidopropyl dimethylamine, olivamidopropyl dimethylamine, palmitamidopropyl dimethylamine, stearamidoethyldiethylamine, brassicamidopropyl dimethylamine and mixtures thereof.

[0080] Preferably, the fatty amidoamines are chosen from oleamidopropyl dimethylamine, stearamidopropyl dimethylamine, behenamidopropyl dimethylamine, brassicamidopropyl dimethylamine and mixtures thereof.

[0081] Preferably, the cationic surfactants i) are chosen from those of formula (Ia) or (IVa) or (Va), and better still from cetyltrimethylammonium, behenyltrimethylammonium, dipalmitoylethylhydroxyethylmethylammonium salts and mixtures thereof; and more particularly from behenyltrimethylammonium chloride or methosulfate, cetyltrimethylammonium chloride or methosulfate, dipalmitoylethylhydroxyethylmethylammonium chloride or methosulfate, oleamidopropyl dimethylamine, behenamidopropyl dimethylamine, stearamidopropyl dimethylamine, brassicamidopropyl dimethylamine and mixtures thereof, and mixtures thereof.

[0082] The total content of the cationic surfactant(s) i), present in the solid composition according to the invention preferably ranges from 0.01 to 15% by weight, preferentially from 0.1 to 10% by weight, better still from 0.5 to 8% by weight, and better still from 1 to 5% by weight relative to the total weight of the composition.

[0083] Starch(s) H) The solid composition according to the present invention comprises one or more starches ii).

[0084] The starch molecules that can be used in the present invention can originate from all plant sources of starch, in particular cereals and tubers; more particularly, they can be starches from corn, rice, cassava, barley, potato, wheat, sorghum, peas, oats, tapioca. Hydrolysates of the starches mentioned above can also be used. The starch is preferably derived from corn or potato.

[0085] Starches can be modified chemically or physically, in particular by one or more of the following reactions: pregelatinization, oxidation, crosslinking, esterification, etherification, amidation, heat treatments.

[0086] More specifically, these reactions can be carried out in the following way: - pregelatinization by bursting the starch granules (e.g. drying and cooking in a drying drum); - oxidation by strong oxidants leading to the introduction of carboxyl groups into the starch molecule and to the depolymerization of the starch molecule (for example by treating an aqueous starch solution with sodium hypochlorite); - crosslinking by functional agents capable of reacting with the hydroxyl groups of the starch molecules which will thus be linked together (for example with glyceryl and / or phosphate groups); - esterification in alkaline medium for the grafting of functional groups, in particular C1 to C6 acyl (acetyl), C1 to C6 hydroxyalkyl (hydroxyethyl, hydroxypropyl), carboxymethyl, octenylsuccinic.

[0087] It is possible in particular to obtain by crosslinking with phosphorus compounds monostarch phosphates (of the Am-O-PO-(OX)2 type), distarch phosphates (of the Am-O-PO-(OX)-O-Am type) or even tristarch phosphates (of the Am-O-PO-(O-Am)2 type) or mixtures thereof; with Am signifying starch and X designating in particular alkali metals (for example sodium or potassium), alkali-earth metals (for example calcium, magnesium), ammonia salts, amine salts such as those of monoethanolamine, diethanolamine, triethanolamine, 3-aminopropanediol-1,2, ammonium salts derived from basic amino acids such as lysine, arginine, sarcosine, ornithine, citrulline.

[0088] The phosphorus compounds may be, for example, sodium tripolyphosphate, sodium orthophosphate, phosphorus oxychloride or sodium trimetaphosphate.

[0089] Mention may in particular be made of distarch phosphates such as the product offered under the references PREJEL VA-70-T AGGL (gelatinized hydroxypropylated cassava distarch phosphate) or PREJEL TK1 (gelatinized cassava distarch phosphate) or PREJEL 200 (gelatinized acetylated cassava distarch phosphate) by the company AVEBE or STRUCTURE ZEA from NATIONAL STARCH (gelatinized corn distarch phosphate).

[0090] A preferred starch is a starch that has undergone at least one chemical modification such as at least one esterification.

[0091] According to the invention, it is also possible to use amphoteric starches, comprising one or more anionic groups and one or more cationic groups. The anionic and cationic groups may be linked to the same reactive site of the starch molecule or to different reactive sites; preferably they are linked to the same reactive site. The anionic groups may be of the carboxylic, phosphate or sulfate type, and preferably carboxylic. The cationic groups may be of the primary, secondary, tertiary or quaternary amine type.

[0092] The amphoteric starches are in particular chosen from the compounds of the following formulas: formulas (Via) to (IXa), in which: - St-0 represents a starch molecule; - R, identical or different, represents a hydrogen atom or a methyl radical; - R', identical or different, represents a hydrogen atom, a methyl radical or a -C(O)-OH group; - n is an integer equal to 2 or 3; - M, identical or different, denotes a hydrogen atom, an alkali or alkali-earth metal such as Na, K, Li, a quaternary ammonium NH4, or an organic amine; and - R" represents a hydrogen atom or a C1-C18 alkyl radical.

[0093] These compounds are notably described in US 5,455,340 and US 4,017,460.

[0094] Particular use is made of starches of formulas (Vlla) or (Villa), and preferably starches modified with 2-chloroethylaminodipropionic acid, i.e. starches of formula (Vlla) or (Villa) in which R, R', R" and M represent a hydrogen atom and n is equal to 2. Preferably, the amphoteric starch is a starch chloroethylamido dipropionate.

[0095] More particularly, the starches are chosen from corn starches, potato starches, rice starches and modified starches such as those mentioned above, in particular phosphated starches such as distarch phosphates such as those described above.

[0096] In one embodiment, the solid composition comprises at least two starches. More particularly, the solid composition comprises at least one unmodified starch such as a corn starch or a potato starch or even a rice starch, and at least one modified starch chosen in particular from those described above, and more particularly from the phosphated starches mentioned above, such as distarch phosphates.

[0097] Even more preferably, said starches comprise at least one corn, rice or potato starch, and at least one modified starch such as a phosphated starch.

[0098] The total content of the starch(es) ii), present in the solid composition according to the invention preferably ranges from 10 to 90% by weight, preferentially from 20 to 85% by weight, better still from 30 to 80% by weight, and better still from 40 to 75% by weight relative to the total weight of the composition.

[0099] In particular, the total content of unmodified starch(es) present in the solid composition according to the invention preferably ranges from 10 to 85% by weight, preferentially from 20 to 80% by weight, better still from 30 to 75% by weight, relative to the total weight of the composition.

[0100] In particular, the total content of modified starch(es), in particular phosphated starch(es), present in the solid composition according to the invention preferably ranges from 0.1 to 30% by weight, preferentially from 0.5 to 20% by weight, and better still from 2 to 15% by weight relative to the total weight of the composition.

[0101] Carboxylic acid(s) iii) The solid composition according to the present invention comprises at least 10% by weight of one or more C1-6 iii) carboxylic acids.

[0102] The third component of the solid composition according to the present invention preferably corresponds to the following formula (Xa): in which: A represents a monovalent group when n is 0, or a polyvalent group when n is greater than or equal to 1; A represents a saturated or unsaturated, cyclic or non-cyclic, aromatic or non-aromatic hydrocarbon group, comprising from 1 to 6 carbon atoms, optionally interrupted by one or more heteroatoms, and / or substituted by one or more hydroxy and / or amino groups; preferably A represents a monovalent C1-C6 alkyl or phenyl group, or a polyvalent C1-C6 alkylene or phenylene group optionally substituted by one or more hydroxy groups; n represents an integer ranging from 0 to 10, preferably from 0 to 5, better still from 0 to 2.

[0103] More particularly, the carboxylic acid or acids of formula (Xa) are chosen from α-hydroxy acids, in which A represents either a phenyl group, or a C1-C6, in particular C2-C4, alkylene group, substituted by one or more hydroxy groups; preferably by an OH group; and n ranges from 0 to 2.

[0104] More particularly, the C1-6 carboxylic acid or acids is or are chosen among those of formula (Xa) in which: n=0 and A represents a C1-C6, in particular C2-C4, alkyl group, or a C1-C6, in particular C2-C4, alkyl group substituted by an OH group; or n=0 and A represents a phenyl group, or a phenyl group substituted by an OH group; or n = 1 or 2, and A represents a di- or trivalent C1-C6, in particular C2-C4, alkyl group, or a di- or trivalent C1-C6, in particular C2-C4, alkyl group substituted by an OH group.

[0105] Even more preferably, the C1-6 carboxylic acid or acids is or are chosen from salicylic acid, citric acid, glutaric acid and lactic acid, and better still it is citric acid.

[0106] The solid composition according to the invention comprises a total content of the C1-C6 carboxylic acid(s) (ii), greater than or equal to 10% by weight, relative to the total weight of the composition. Preferably, it ranges from 10 to 30% by weight, preferably from 11 to 25% by weight, and better still from 12 to 20% by weight relative to the total weight of the composition.

[0107] Fatty substances The solid composition according to the invention may further comprise one or more fatty substances.

[0108] By "fatty substance" is meant an organic compound insoluble in water at 25°C and at atmospheric pressure (1,013.105 Pa) (solubility less than 5% by weight, and preferably less than 1% by weight, even more preferably less than 0.1% by weight). They have in their structure at least one hydrocarbon chain comprising at least 6 carbon atoms and / or a chain of at least two siloxane groups. In addition, fatty substances are generally soluble in organic solvents under the same temperature and pressure conditions, such as for example chloroform, dichloromethane, carbon tetrachloride, ethanol, benzene, toluene, tetrahydrofuran (THF), vaseline oil or decamethyl-cyclopentasiloxane.

[0109] The fatty substances which can be used in the present invention are neither (poly)oxyalkylenated nor (poly)glycerolated.

[0110] Preferably, the fatty substances useful according to the invention are non-silicone.

[0111] The term “non-silicone fatty substance” means a fatty substance not containing Si-O bonds and the term “silicone fatty substance” means a fatty substance containing at least one Si-O bond.

[0112] The fatty substances useful according to the invention may be liquid fatty substances (or oils) and / or solid fatty substances. Liquid fatty substance is understood to mean a fatty substance having a melting point less than or equal to 25°C and at atmospheric pressure (1,013.105 Pa). Solid fatty substance is understood to mean a fatty substance having a melting point greater than 25°C at atmospheric pressure (1,013.105 Pa).

[0113] For the purposes of the present invention, the melting point corresponds to the temperature of the most endothermic peak observed in thermal analysis (differential scanning calorimetry or DSC) as described in the ISO 11357-3; 1999 standard. The melting point can be measured using a differential scanning calorimeter (DSC), for example the calorimeter sold under the name "MDSC 2920" by the company TA Instruments. In the present application, all melting points are determined at atmospheric pressure (1,013.105 Pa).

[0114] More particularly, the liquid fatty substance(s) according to the invention may be chosen from C6 to C16 liquid hydrocarbons, liquid hydrocarbons comprising more than 16 carbon atoms, non-silicone oils of animal origin, triglyceride-type oils of vegetable or synthetic origin, fluorinated oils, liquid fatty alcohols, liquid esters of fatty acid and / or fatty alcohol other than triglycerides, silicone oils and mixtures thereof.

[0115] It is recalled that the alcohols, esters and fatty acids more particularly have at least one hydrocarbon group, linear or branched, saturated or unsaturated, comprising from 6 to 40, better still from 8 to 30 carbon atoms, optionally substituted, in particular by one or more hydroxyl groups (in particular 1 to 4). If they are unsaturated, these compounds may comprise one to three carbon-carbon double bonds, conjugated or not.

[0116] As regards the liquid C6 to C16 hydrocarbons, the latter may be linear, branched, optionally cyclic, and are preferably chosen from alkanes. By way of example, mention may be made of hexane, cyclohexane, undecane, dodecane, isododecane, tridecane, isoparaffins such as isohexadecane, isodecane, and mixtures thereof.

[0117] Liquid hydrocarbons comprising more than 16 carbon atoms may be linear or branched, of mineral or synthetic origin, and are preferably chosen from paraffin or vaseline oils, polydecenes, hydrogenated polyisobutene such as Parléam®, and mixtures thereof.

[0118] As hydrocarbon oils (or non-silicone oils) of animal origin, mention may be made of perhydrosqualene.

[0119] The triglyceride oils of vegetable or synthetic origin are preferably chosen from liquid triglycerides of fatty acids containing from 6 to 30 carbon atoms such as triglycerides of heptanoic or octanoic acids or, for example, sunflower, corn, soybean, pumpkin, grape seed, sesame, hazelnut, apricot, macadamia, arara, sunflower, castor, avocado oils, triglycerides of caprylic / capric acids such as those sold by the company Stea-rineries Dubois or those sold under the names Miglyol® 810, 812 and 818 by Dynamit Nobel Company, Jojoba Oil, Shea Butter Oil, and their blends.

[0120] As regards the fluorinated oils, these can be chosen from per-fluoromethylcyclopentane and perfluoro-1,3 dimethylcyclohexane, sold under the names “FLUTEC® PCI” and “FLUTEC® PC3” by the company BNFL Fluorochemicals; perfluoro-1,2-dimethylcyclobutane; perfluoroalkanes such as dodecafluoropentane and tetradecafluorohexane, sold under the names “PF 5050®” and “PF 5060®” by the company 3M, or bromoperfluorooctyl sold under the name “FORALKYL®” by the company Atochem; no-nafluoro-methoxybutane and nonafluoroethoxyisobutane; perfluoromorpholine derivatives, such as 4-trifluoromethyl perfluoromorpholine sold under the name “PF 5052®” by 3M Company.

[0121] The liquid fatty alcohols suitable for implementing the invention are more particularly chosen from saturated or unsaturated, linear or branched, preferably unsaturated or branched alcohols comprising from 6 to 40 carbon atoms, preferably from 8 to 30 carbon atoms. These fatty alcohols are neither oxyalkylenated nor glycerolated. Examples that may be mentioned are octyldodecanol, 2-butyloctanol, 2-hexyldecanol, 2-undecylpentadecanol, isostearyl alcohol, oleyl alcohol, linolenic alcohol, ricinoleic alcohol, undecylenic alcohol or linoleic alcohol, and mixtures thereof. Preferably, oleyl alcohol will be used.

[0122] As regards the liquid esters of fatty acids and / or fatty alcohols, other than the triglycerides mentioned above, mention may in particular be made of esters of saturated or unsaturated aliphatic mono or polyacids, linear in C1 to C26 or branched in C3 to C26 and of saturated or unsaturated aliphatic mono or polyalcohols, linear in C1 to C26 or branched in C3 to C26, the total number of carbons in the esters being greater than or equal to 6, more advantageously greater than or equal to 10.

[0123] Preferably, for the monoalcohol esters, at least one of the alcohol or the acid is branched.

[0124] Among the monoesters, mention may be made of dihydroabietyl behenate; octyldodecyl behenate; isocetyl behenate; isostearyl lactate; lauryl lactate; linoleyl lactate; oleyl lactate; isostearyl octanoate; isocetyl octanoate; octyl octanoate; decyl oleate; isocetyl isostearate; isocetyl laurate; isocetyl stearate; isodecyl octanoate; isodecyl oleate; isononyl isononanoate; isostearyl palmitate; methyl acetyl ricinoleate; octyl isononanoate; 2-ethylhexyl isononate; octyldodecyl erucate; oleyl erucate; ethyl and isopropyl palmitates, such as ethyl-2-hexyl palmitate, 2-octyldecyl palmitate; alkyl myristates such as isopropyl myristate; isobutyl stearate; 2-hexyldecyl laurate, and their mixtures.

[0125] Preferably among the monoesters of monoacids and monoalcohols, use will be made of ethyl and isopropyl palmitates, alkyl myristates such as isopropyl or ethyl myristate, isocetyl stearate, ethyl-2-hexyl isononanoate, isodecyl neopentanoate, isostearyl neopentanoate, and mixtures thereof.

[0126] Esters of C4 to C22 di- or tricarboxylic acids and C1 to C22 alcohols and esters of mono-, di-, or tricarboxylic acids and C2 to C26 di-, tri-, tetra- or pentahydroxy alcohols may also be used.

[0127] Mention may in particular be made of: diethyl sebacate; diisopropyl sebacate; diisopropyl adipate; di-n-propyl adipate; dioctyl adipate; diisostearyl adipate; dioctyl maleate; glyceryl undecylenate; octyldodecyl stearoylstearate; pentaerythrityl monoricinoleate; pentaerythrityl tetraisononanoate; pentaerythrityl tetrapelargonate; pentaerythrityl tetraisostearate; pentaerythrityl tetraoctanoate; propylene glycol dicaprylate; propylene glycol dicaprate, tridecyl erucate; triisopropyl citrate; triisotearyl citrate; glyceryl trilactate; glyceryl trioctanoate; trioctyldodecyl citrate; trioleyl citrate; propylene glycol dioctanoate; neopentyl glycol diheptanoate; diethylene glycol diisocyanate; polyethylene glycol distearates, and mixtures thereof.

[0128] The composition may also comprise, as fatty ester, esters and diesters of sugars of C6 to C30 fatty acids, preferably C12 to C22. It is recalled that the term "sugar" means oxygenated hydrocarbon compounds which have several alcohol functions, with or without aldehyde or ketone function, and which comprise at least 4 carbon atoms. These sugars may be monosaccharides, oligosaccharides or polysaccharides different from the anionic polysaccharides described below.

[0129] Suitable sugars include, for example, sucrose (or saccharose), glucose, galactose, ribose, fucose, maltose, fructose, mannose, arabinose, xylose, lactose, and their derivatives, in particular alkylated ones, such as methylated derivatives such as methylglucose.

[0130] The esters of sugars and fatty acids may be chosen in particular from the group comprising the esters or mixtures of esters of sugars described above and of C6 to C30 fatty acids, preferably C12 to C22, linear or branched, saturated or unsaturated. If they are unsaturated, these compounds may comprise one to three carbon-carbon double bonds, conjugated or not.

[0131] The esters can also be chosen from mono-, di-, tri- and tetra-esters, polyesters and their mixtures.

[0132] These esters can be for example oleate, laurate, palmitate, myristate, behenate, cocoate, stearate, linoleate, linolenate, caprate, arachidonate, or mixtures thereof, such as mixed esters oleo-palmitate, oleo-stearate, palmito-stearate.

[0133] More particularly, mono- and di-esters are used, and in particular mono- or di-oleate, stearate, behenate, oleopalmitate, linoleate, linolenate, oleostearate, of sucrose, glucose or methylglucose, and mixtures thereof.

[0134] An example of this is the product sold under the name Glucate® DO by the company Amerchol, which is a methylglucose dioleate.

[0135] The silicone oils that can be used in the composition according to the present invention can be volatile or non-volatile, cyclic, linear or branched, modified or not by organic groups, and preferably have a viscosity of 5.106 to 2.5 m2 / s at 25°C, and preferably 1.105 to 1 m2 / s.

[0136] Preferably, the silicone oils are chosen from polydialkylsiloxanes, in particular polydimethylsiloxanes (PDMS), and liquid polyorganosiloxanes comprising at least one aryl group.

[0137] These silicone oils can also be organomodified. The organomodified silicone oils that can be used in accordance with the invention are preferably liquid silicones as defined above and comprising in their structure one or more organofunctional groups attached via a hydrocarbon group, for example chosen from amino groups and alkoxy groups.

[0138] Organopolysiloxanes are further defined in Walter NOLL's book "Chemistry and Technology of Silicones" (1968), Academie Press. They may be volatile or non-volatile.

[0139] When they are volatile, the silicone oils are more particularly chosen from those having a boiling point of between 60°C and 260°C, and more particularly still from: (i) cyclic polydialkylsiloxanes containing from 3 to 7, preferably from 4 to 5, silicon atoms. These include, for example, octamethylcyclotetrasiloxane sold in particular under the name VOLATILE SILICONE® 7207 by UNION CARBIDE or SILBIONE® 70045 V2 by RHODIA, decamethylcyclopentasiloxane sold under the name VOLATILE SILICONE® 7158 by UNION CARBIDE, and SILBIONE® 70045 V5 by RHODIA, as well as mixtures thereof. We can also cite cyclocopolymers of the dimethylsiloxane / methylal-kylsiloxane type, such as SILICONE VOLATILE® FZ 3109 marketed by the company UNION CARBIDE. Mixtures of cyclic polydialkylsiloxanes with organic compounds derived from silicon, such as the mixture octamethylcyclotetrasiloxane and tetratrimethylsilylpentaerythritol (50 / 50) and the mixture of octamethylcyclotetrasiloxane and oxy-l,r-(hexa-2,2,2',2',3,3'-trimethylsilyloxy) bis-neopentane; (ii) linear volatile polydialkylsiloxanes having 2 to 9 silicon atoms and having a viscosity less than or equal to 5.106 m2 / s at 25°C. This is, for example, decamethyltetrasiloxane marketed in particular under the name “SH 200” by the company TORAY SILICONE. Silicones falling into this class are also described in the article published in Cosmetics and Toiletries, Vol. 91, Jan. 76, P. 27-32 - TODD & BYERS “Volatile Silicone fluids for cosmetics”.

[0140] Non-volatile polydialkylsiloxanes are preferably used.

[0141] These silicone oils are more particularly chosen from polydialkylsiloxanes, among which we can mainly cite polydimethylsiloxanes with trimethylsilyl end groups. The viscosity of the silicones is measured at 25°C according to the ASTM 445 Appendix C standard.

[0142] Among these polydialkylsiloxanes, the following commercial products may be mentioned, without limitation: - SILBIONE® oils of the 47 and 70 047 series or MIRASIL® oils marketed by RHODIA such as, for example, oil 70 047 V 500 000; - oils from the MIRASIL® series marketed by the company RHODIA; - DOW CORNING 200 series oils such as DC200 with a viscosity of 60,000 mm2 / s; - VISCASIL® oils from GENERAL ELECTRIC and certain oils from the SF series (SF 96, SF 18) from GENERAL ELECTRIC.

[0143] Mention may also be made of polydimethylsiloxanes with dimethylsilanol end groups known under the name dimethiconol (CTFA), such as the oils of series 48 from the company RHODIA.

[0144] The organomodified silicones which can be used in accordance with the invention are silicones as defined above and comprising in their structure one or more organofunctional groups attached via a hydrocarbon group.

[0145] As regards liquid polyorganosiloxanes comprising at least one aryl group, they may in particular be polydiphenylsiloxanes, and polyalkyl-arylsiloxanes functionalized by the organofunctional groups mentioned above.

[0146] The polyalkylarylsiloxanes are particularly chosen from polydimethyl / methylphenylsiloxanes, linear and / or branched polydimethyl / diphenylsiloxanes with a viscosity ranging from 1.105 to 5.102 m2 / s at 25°C.

[0147] Among these polyalkylarylsiloxanes, we can cite as an example the commercial products- commercialized under the following names: - SILBIONE® oils from the 70 641 series from RHODIA; - oils from the RHODORSIL® 70 633 and 763 series from RHODIA; - DOW CORNING 556 COSMETIC GRAD FLUID oil from DOW CORNING; - BAYER PK series silicones such as PK20; - BAYER PN and PH series silicones such as PN1000 and PH1000 products; - certain oils from the GENERAL ELECTRIC SF series such as SF 1023, SF 1154, SF 1250, SF 1265.

[0148] Among the organomodified silicones, mention may be made of polyorganosiloxanes comprising: - substituted or unsubstituted amino groups such as the products marketed under the names GP 4 Silicone Fluid and GP 7100 by the company GENESEE or the products marketed under the names Q2 8220 and DOW CORNING 929 or 939 by the company DOW CORNING. The substituted amino groups are in particular C1 to C4 aminoalkyl groups;

[0149] - alkoxylated groups, - hydroxyl groups.

[0150] The silicones that can be used may be amino silicones. Amino silicone means any silicone comprising at least one primary, secondary, tertiary amine or a quaternary ammonium group.

[0151] The weight-average molecular masses of these amino silicones can be measured by Gel Permeation Chromatography (GPC) at room temperature (25°C) in polystyrene equivalent. The columns used are p styragel columns. The eluent is THF, the flow rate is 1 ml / min. 200 μl of a 0.5% by weight solution of silicone in THF are injected. Detection is done by refractometry and UVmetry.

[0152] Preferably, the amino silicone(s) capable of being used in the context of the invention are chosen from:

[0153] a) polysiloxanes corresponding to the formula (A): in which x' and y' are integers such that the average molecular weight in weight (Mw) is between approximately 5,000 and 500,000;

[0154] b) amino silicones corresponding to formula (B): R'aG3a-Si(OSiG2)n-(OSiGbR'2b)mO-SiG3a-R'a (B) in which: - G, identical or different, denotes a hydrogen atom, a phenyl, OH, Cr-C8 alkyl, for example methyl, or Cr-C8 alkoxy, for example methoxy, group, - a, identical or different, denotes 0 or an integer from 1 to 3, in particular 0, - b denotes 0 or 1, in particular 1, - m and n are numbers such that the sum (n + m) varies from 1 to 2000, in particular from 50 to 150, n being able to designate a number from 0 to 1999, and in particular from 49 to 149 and m being able to designate a number from 1 to 2000, and in particular from 1 to 10; - R', identical or different, denotes a monovalent radical of formula -CqH2qL in which q is a number ranging from 2 to 8, and L is an optionally quaternized amino group chosen from the groups: -N(R")2; -N+(R")3 A-; -NR"-QN(R")2 and -NR"-Q-N+(R")3 A, in which R", identical or different, denotes hydrogen, phenyl, benzyl, or a monovalent saturated hydrocarbon radical, for example a C1-C20 alkyl radical; Q denotes a group of formula CrH2r, linear or branched, r being an integer ranging from 2 to 6, preferably from 2 to 4; and A- represents a cosmetically acceptable anion, in particular halide such as fluoride, chloride, bromide or iodide.

[0155] Preferably, the amino silicones are chosen from the amino silicones of formula (B). Preferably, the amino silicones of formula (B) are chosen from the amino silicones corresponding to the following formulas (C), (D), (E), (F), (G) and / or (K).

[0156] Thus, the amino silicones corresponding to formula (B) can be chosen from, alone or as a mixture:

[0157] A / silicones called "trimethylsilylamodimethicone" corresponding to the formula (C): (GH,). If CH. i û 1 '* i 1 AQ: U Oi: | X_3! | CH,. (CH,), 1 L_ n 1} SJ! 1 HH, £m in which m and n are numbers such that the sum (n + m) varies from 1 to 2000, in particular from 50 to 150, n being able to designate a number from 0 to 1999, and in particular from 49 to 149 and m being able to designate a number from 1 to 2000, and in particular from 1 to 10.

[0158] B / silicones of the following formula (D): in which: - m and n are numbers such that the sum (n + m) varies from 1 to 1000, in particular from 50 to 250 and more particularly from 100 to 200; n being able to designate a number from 0 to 999 and in particular from 49 to 249 and more particularly from 125 to 175 and m being able to designate a number from 1 to 1000, in particular from 1 to 10, more particularly from 1 to 5; - Ri, R2, R3, identical or different, represent a hydroxy or alkoxy radical in C1-C4, at least one of the radicals Ri to R3 designating an alkoxy radical.

[0159] Preferably the alkoxy radical is a methoxy radical.

[0160] The hydroxy / alkoxy molar ratio preferably ranges from 0.2:1 to 0.4:1 and preferably from 0.25:1 to 0.35:1 and more particularly is equal to 0.3:1.

[0161] The weight average molecular mass (Mw) of these silicones preferably ranges from 2000 to 1,000,000, more particularly from 3500 to 200,000.

[0162] C / the following silicones of formula (E): in which: - p and q are numbers such that the sum (p+q) varies from 1 to 1000, in particular from 50 to 350, and more particularly from 150 to 250; p can designate a number from 0 to 999 and in particular from 49 to 349 and more particularly from 159 to 239 and q which can designate a number from 1 to 1000, in particular from 1 to 10 and more particularly from 1 to 5; - Rb R2, different, represent a hydroxy or alkoxy radical in C1-C4, at least one of the radicals Ri or R2 designating an alkoxy radical.

[0163] Preferably the alkoxy radical is a methoxy radical.

[0164] The hydroxy / alkoxy molar ratio generally ranges from 1:0.8 to 1:1.1 and preferably from 1:0.9 to 1:1 and more particularly is equal to 1:0.95.

[0165] The weight average molecular mass (Mw) of the silicone preferably ranges from 2000 to 200000 and even more particularly from 5000 to 100000 and more particularly from 10000 to 50000.

[0166] Commercial products comprising silicones of structure (D) or (E) may include in their composition one or more other amino silicones whose structure is different from formulas (D) or (E).

[0167] A product containing amino silicones of structure (D) is offered by the company WACKER under the name BELSIL® ADM 652.

[0168] A product containing amino silicones of structure (E) is offered by WACKER under the name Fluid WR 1300®.

[0169] When these amino silicones are used, a particularly interesting embodiment is their use in the form of an oil-in-water emulsion. The oil-in-water emulsion may comprise one or more surfactants. The surfactants may be of any nature but preferably cationic and / or non-ionic. The number-average size of the silicone particles in the emulsion generally ranges from 3 nm to 500 nanometers. Preferably, in particular as amino silicones of formula (E), microemulsions are used whose average particle size ranges from 5 nm to 60 nanometers (inclusive) and more particularly from 10 nm to 50 nanometers (inclusive). Thus, the microemulsions of amino silicone of formula (E) proposed under the names FINISH CT 96 E® or SLM 28020® by the company WACKER may be used according to the invention.

[0170] D / silicones of the following formula (F): in which: - m and n are numbers such that the sum (n + m) varies from 1 to 2000 and in particular from 50 to 150, n being able to designate a number from 0 to 1999 and in particular from 49 to 149 and m being able to designate a number from 1 to 2000, and in particular from 1 to 10; - A denotes a linear or branched alkylene radical having from 4 to 8 carbon atoms and preferably 4 carbon atoms. This radical is preferably linear.

[0171] The weight-average molecular mass (Mw) of these amino silicones preferably ranges from 2000 to 1,000,000 and even more particularly from 3500 to 200,000.

[0172] A silicone corresponding to this formula is for example XIAMETER MEM 8299 EMULSION from DOW CORNING.

[0173] E / silicones of the following formula (G): in which: - m and n are numbers such that the sum (n + m) varies from 1 to 2000 and in particular from 50 to 150, n being able to designate a number from 0 to 1999 and in particular from 49 to 149 and m being able to designate a number from 1 to 2000, and in particular from 1 to 10; - A denotes a linear or branched alkylene radical having from 4 to 8 carbon atoms and preferably 4 carbon atoms. This radical is preferably branched.

[0174] The weight average molecular weight (Mw) of these amino silicones ranges from preferably from 500 to 1,000,000 and even more particularly from 1,000 to 200,000.

[0175] A silicone corresponding to this formula is for example DC2-8566 Amino Fluid from DOW CORNING.

[0176] c) amino silicones corresponding to the formula (H): in which: - R5 represents a monovalent hydrocarbon radical having from 1 to 18 carbon atoms, and in particular a C1-C18 alkyl radical, or C2-C18 alkenyl radical, for example methyl; - R6 represents a divalent hydrocarbon radical, in particular a CrCi8 alkylene radical or a divalent Ci-Ci8 alkyleneoxy radical, for example CrC8 linked to Si by a SiC bond; - Q is an anion such as a halide ion, in particular chloride or an organic acid salt, in particular acetate; - r represents an average statistical value ranging from 2 to 20, in particular from 2 to 8; - s represents an average statistical value ranging from 20 to 200, in particular from 20 to 50.

[0177] Such amino silicones are notably described in US patent 4,185,087.

[0178] - d) quaternary ammonium silicones of formula (I): in which: - R7, identical or different, represent a monovalent hydrocarbon radical having from 1 to 18 carbon atoms, and in particular a C1-C18 alkyl radical, a C2-C18 alkenyl radical or a cycle comprising 5 or 6 carbon atoms, for example methyl; - R6 represents a divalent hydrocarbon radical, in particular a CrCi8 alkylene radical or a divalent CrCi8 alkyleneoxy radical, for example CrC8 linked to Si by a SiC bond; - R8, identical or different, represent a hydrogen atom, a hy- radical

[0179]

[0180] monovalent carbon having from 1 to 18 carbon atoms, and in particular a C1-C18 alkyl radical, a C2-C18 alkenyl radical, a -R6-NHCOR7 radical; - X is an anion such as a halide ion, in particular chloride or an organic acid salt, in particular acetate; - r represents an average statistical value ranging from 2 to 200, in particular from 5 to 100. These silicones are for example described in application EP-A-0530974. e) amino silicones of formula (J): H2N - - NM - S]

[0181]

[0182] in which: - R1, R2, R3 and R4, identical or different, denote a C1-C4 alkyl radical or a phenyl group, - R5 denotes a C1-C4 alkyl radical or a hydroxyl group, - n is an integer ranging from 1 to 5, - m is an integer ranging from 1 to 5, and - x is chosen such that the amine index varies from 0.01 to 1 meq / g. f) multiblock polyoxyalkylenated amino silicones, of type (AB)n, A being a polysiloxane block and B being a polyoxyalkylenated block comprising at least one amine group. Said silicones are preferably made up of repeating units of the following general formulas: [-(SiMe2O)xSiMe2 - R -N(R")- R'-O(C2H4O)a(C3H6O)b -R'-N(H)-R-] or else [-(SiMe2O)xSiMe2 - R -N(R")- R' - O(C2H4O)a(C3H6O)b -] in which: - a is an integer greater than or equal to 1, preferably ranging from 5 to 200, more particularly ranging from 10 to 100; - b is an integer between 0 and 200, preferably between 4 and 100, more particularly between 5 and 30; - x is an integer ranging from 1 to 10000, more particularly from 10 to 5000; - R" is a hydrogen atom or a methyl; - R, identical or different, represent a divalent C2-Ci2 hydrocarbon radical, linear or branched, optionally comprising one or more heteroatoms such as oxygen; preferably, R denotes an ethylene radical, a linear propylene radical or branched, a linear or branched butylene radical, or a CH2CH2CH2OCH2 CH(OH)CH2- radical; preferably R denotes a CH2CH2CH2OCH2CH(OH)CH2 radical - R', identical or different, represent a divalent C2-Ci2 hydrocarbon radical, linear or branched, optionally comprising one or more heteroatoms such as oxygen; preferably, R' denotes an ethylene radical, a linear or branched propylene radical, a linear or branched butylene radical, or a CH2CH2CH2OCH2 CH(OH)CH2- radical; preferentially R' denotes -CH(CH3)-CH2-.

[0183] The siloxane blocks preferably represent 50 and 95 mol% of the total weight of the silicone, more particularly 70 to 85 mol%.

[0184] The amine level is preferably between 0.02 and 0.5 meq / g of copolymer in a 30% solution in dipropylene glycol, more particularly between 0.05 and 0.2.

[0185] The weight average molecular mass (Mw) of the silicone is preferably between 5000 and 1000000, more particularly between 10000 and 200000.

[0186] Mention may in particular be made of the silicones marketed under the names Silsoft A-843 or Silsoft A+ by Momentive.

[0187] g) alpha, omega-bis-amino silicones corresponding to the following formula (K): in which: - the radicals R, independently of each other, represent a hydrogen atom, an OH group or a linear or branched C1-C4 alkyl group, - the radicals RI, R2, R3 and R4, independently of one another, represent a hydrogen atom, a C1-C6 alkyl group or a C1-C6 aminoalkyl group; - x is between 0 and 6; y is between 0 and 6, and - n is such that the molecular mass by weight (Mw) of the amino silicone is between 5,000 and 200,000 g / mol.

[0188] Preferably, the radicals R are identical and represent CH3 (methyl).

[0189] Preferably, RI, R2, R3 and R4, independently of each other, represent a hydrogen atom, an alkyl group, preferably linear saturated, CrC4, better C2-C4, in particular ethyl; or a C2-C4 aminoalkyl group, in particular of structure -(CaH2a)-NH2 with a = 2 to 4; in particular aminoethyl (-CH2-CH2-NH2).

[0190] Preferably, x is between 1 and 5, better between 2 and 4, even better x=3.

[0191] Preferably, y is between 1 and 5, better between 2 and 4, even better y=3.

[0192] Preferably, x=y.

[0193] Preferably, n is such that the weight-average molecular mass (Mw) of the silicone is between 10,000 and 150,000 g / mol, or even between 15,000 and 100,000 g / mol.

[0194] More preferably, the amino silicone corresponds to the formula (K) in which the radicals R represent a methyl group, x = y = 3 and RI, R2, R3 and R4 represent a hydrogen atom; it is then a bis-aminopropyl dimethicone (INCI name).

[0195] Preferably, the liquid fatty substance(s) are chosen from vegetable oils such as those defined above, liquid fatty esters such as those defined above, amino silicones such as amodimethicone and bis-amino silicones, and mixtures thereof,

[0196] The solid fatty substances preferably have a viscosity greater than 2 Pa.s, measured at 25°C and at a shear rate of 1 s1.

[0197] The solid fatty body(ies) are preferably chosen from solid fatty alcohols, solid esters of fatty acids and / or fatty alcohols, waxes, ceramides, and mixtures thereof.

[0198] By "fatty alcohol" is meant a long-chain aliphatic alcohol comprising from 6 to 40 carbon atoms, preferably from 8 to 30 carbon atoms and comprising at least one hydroxyl group OH. These fatty alcohols are neither oxyalkylenated nor glycerolated.

[0199] The solid fatty alcohols may be saturated or unsaturated, linear or branched, and comprise from 8 to 40 carbon atoms, preferably from 10 to 30 carbon atoms. Preferably, the solid fatty alcohols are of structure R-OH with R denoting a linear alkyl group, optionally substituted by one or more hydroxyl groups, comprising from 8 to 40, preferably from 10 to 30 carbon atoms, or even from 12 to 24 atoms, even better from 14 to 22 carbon atoms.

[0200] The solid fatty alcohols that can be used are preferably chosen from saturated or unsaturated, linear or branched (mono)alcohols, preferably linear and saturated, comprising from 8 to 40 carbon atoms, better still from 10 to 30, or even from 12 to 24 atoms, even better still from 14 to 22 carbon atoms.

[0201] The solid fatty alcohols that can be used can be chosen from, alone or in a mixture: myristic or myristyl alcohol (or 1-tetradecanol); cetyl alcohol (or 1-hexadecanol); stearyl alcohol (or 1-octadecanol); ara-chidyl alcohol (or 1-eicosanol); behenyl alcohol (or 1-docosanol); lignoceryl alcohol (or 1-tetracosanol); ceryl alcohol (or 1-hexacosanol); montanyl alcohol (or 1-octacosanol); myricyl alcohol (or 1-triacontanol).

[0202] Preferably, the solid fatty alcohol is chosen from cetyl alcohol, stearyl alcohol, behenyl alcohol, myristyl alcohol, arachidyl alcohol and mixtures thereof, such as cetylstearyl or cetearyl alcohol. In a particular manner- Most preferred, the solid fatty alcohol is cetylstearyl or cetearyl alcohol.

[0203] The solid fatty acid and / or fatty alcohol esters that may be used are preferably chosen from esters derived from C9-C26 carboxylic fatty acid and / or C9-C26 fatty alcohol.

[0204] Preferably, these solid fatty esters are esters of saturated, linear or branched carboxylic acid, comprising at least 10 carbon atoms, preferably from 10 to 30 carbon atoms and more particularly from 12 to 24 carbon atoms, and of saturated, linear or branched monoalcohol, comprising at least 10 carbon atoms, preferably from 10 to 30 carbon atoms and more particularly from 12 to 24 carbon atoms. The saturated carboxylic acids may optionally be hydroxylated, and are preferably monocarboxylic acids.

[0205] It is also possible to use esters of C4-C22 di- or tricarboxylic acids and C1-C22 alcohols and esters of mono-, di- or tricarboxylic acids and C2-C26 di-, tri-, tetra- or pentahydroxylated alcohols.

[0206] Mention may in particular be made of octyldodecyl behenate, isocetyl behenate, cetyl lactate, stearyl octanoate, octyl octanoate, cetyl octanoate, decyl oleate, hexyl stearate, octyl stearate, myristyl stearate, cetyl stearate, stearyl stearate, octyl pelargonate, cetyl myristate, myristyl myristate, stearyl myristate, diethyl sebacate, diisopropyl sebacate, diisopropyl adipate, di n-propyl adipate, dioctyl adipate, dioctyl maleate, octyl palmitate, myristyl palmitate, cetyl palmitate, stearyl palmitate, and mixtures thereof.

[0207] Preferably, the solid fatty acid and / or fatty alcohol esters are chosen from C9-C26 alkyl palmitates, in particular myristyl, cetyl and stearyl palmitates; C9-C26 alkyl myristates such as cetyl myristate, stearyl myristate and myristyl myristate; C9-C26 alkyl stearates, in particular myristyl, cetyl and stearyl stearates; and mixtures thereof.

[0208] A wax, within the meaning of the present invention, is a lipophilic compound, solid at 25°C and atmospheric pressure, with a reversible solid / liquid state change, having a melting temperature above approximately 40°C and up to 200°C, and having an anisotropic crystalline organization in the solid state. Generally speaking, the size of the wax crystals is such that the crystals diffract and / or diffuse light, giving the composition comprising them a more or less opaque cloudy appearance. By bringing the wax to its melting temperature, it is possible to make it miscible with oils and to form a microscopically homogeneous mixture, but by bringing the temperature of the mixture back to room temperature, a recrystallization of the wax is obtained, detectable microscopically and macroscopically (opalescence).

[0209] In particular, the waxes suitable for the invention may be chosen from waxes of animal, vegetable, mineral origin, non-silicone synthetic waxes and their mixtures.

[0210] Mention may in particular be made of hydrocarbon waxes, such as beeswax, in particular of biological origin, lanolin wax, and Chinese insect waxes; rice bran wax, carnauba wax, candelilla wax, ouricury wax, alfa wax, berry wax, shellac wax, japanese wax and sumac wax; montan wax, orange and lemon waxes, microcrystalline waxes, paraffins and ozokerite; polyethylene waxes, waxes obtained by Fisher-Tropsch synthesis and waxy copolymers, as well as their esters.

[0211] Mention may also be made of C2o to C60 microcrystalline waxes, such as Microwax HW.

[0212] Mention may also be made of the PM 500 polyethylene wax marketed under the reference Permalen 50-L polyethylene.

[0213] Mention may also be made of waxes obtained by catalytic hydrogenation of animal or vegetable oils having linear or branched fatty chains, from C8 to C32. Among these, mention may in particular be made of isomerized jojoba oil, such as trans isomerized partially hydrogenated jojoba oil, in particular that manufactured or marketed by the company Desert Whale under the commercial reference Iso-Jojoba-50®, hydrogenated sunflower oil, hydrogenated castor oil, hydrogenated coconut oil, hydrogenated lanolin oil, and di-(trimethyloi-1,1,1 propane) tetrastearate, in particular that sold under the name Hest 2T-4S® by the company HETERENE.

[0214] It is also possible to use waxes obtained by hydrogenation of castor oil esterified with cetyl alcohol, such as those sold under the names Phytowax ricin 16L64® and 22L73® by the company SOPHIM.

[0215] As wax, it is also possible to use a C20 to C40 alkyl (hydroxystearyloxy)stearate (the alkyl group comprising from 20 to 40 carbon atoms), alone or as a mixture. Such a wax is sold in particular under the names “Kester Wax K 82 P®”, “Hydroxypolyester K 82 P®” and “Kester Wax K 80 P®” by the company KOSTER KEUNEN.

[0216] It is also possible to use microwaxes in the compositions of the invention; mention may be made in particular of carnauba microwaxes, such as that marketed under the name MicroCare 350® by the company MICRO POWDERS, synthetic wax microwaxes, such as that marketed under the name MicroEase 114S® by the company MICRO POWDERS, microwaxes consisting of a mixture of carnauba wax and polyethylene wax, such as those marketed under the names Micro Care 300® and 310® by the MICRO POWDERS company, microwaxes consisting of a mixture of camauba wax and synthetic wax, such as that marketed under the name Micro Care 325® by MICRO POWDERS company, polyethylene microwaxes, such as those marketed under the names Micropoly 200®, 220®, 220L® and 250S® by MICRO POWDERS company and polytetrafluoroethylene microwaxes, such as those marketed under the names Microslip 519® and 519 L® by MICRO POWDERS company.

[0217] The waxes are preferably chosen from mineral waxes such as paraffin wax, vaseline wax, lignite wax or ozokerite; vegetable waxes such as cocoa butter or cork or sugar cane fiber waxes, olive wax, rice wax, hydrogenated jojoba wax, Ouricoury wax, Camauba wax, Candelila wax, Alfa wax, or absolute flower waxes such as blackcurrant flower essential wax sold by the company BERTIN (France); waxes of animal origin such as beeswax or modified beeswax (cerabellina), spermaceti, lanolin wax and lanolin derivatives; microcrystalline waxes; and mixtures thereof.

[0218] Ceramides or ceramide analogues such as glycoceramides, capable of being used in the compositions according to the invention, are known; mention may be made in particular of ceramides of classes I, II, III and V according to the DAWNING classification.

[0219] The ceramides or their analogues which may be used preferably correspond to the following formula: R3CH(OH)CH(CH2OR2)(NHCOR1), in which: R1 denotes a linear or branched, saturated or unsaturated alkyl group derived from C14-C30 fatty acids, this group possibly being substituted by a hydroxyl group in the alpha position, or a hydroxyl group in the omega position esterified by a saturated or unsaturated C16-C30 fatty acid; R2 denotes a hydrogen atom, a (glycosyl)n group, a (galactosyl)m group or a sulfogalactosyl group, in which n is an integer ranging from 1 to 4 and m is an integer ranging from 1 to 8; R3 denotes a C15-C26 hydrocarbon group, saturated or unsaturated in the alpha position, this group possibly being substituted by one or more C114 alkyl groups; it being understood that in the case of natural ceramides or glycoceramides, R3 may also denote a C15-C26 alpha-hydroxyalkyl group, the hydroxyl group being optionally esterified by a C16-C30 alpha-hydroxy acid.

[0220] The more particularly preferred ceramides are the compounds for which R1 denotes a saturated or unsaturated alkyl derived from C16-C22 fatty acids; R2 denotes a hydrogen atom and R3 denotes a linear saturated C15 group.

[0221] Preferably, ceramides are used for which R1 denotes a saturated or unsaturated alkyl group derived from C14-C30 fatty acids; R2 denotes a galactosyl group or sulfogalactosyl; and R3 denotes a -CH=CH-(CH2)i2-CH3 group.

[0222] It is also possible to use compounds for which R1 denotes a saturated or unsaturated alkyl radical derived from C[2-C22] fatty acids; R2 denotes a galactosyl or sulfogalactosyl radical and R3 denotes a saturated or unsaturated C[2-C22] hydrocarbon radical and preferably a -CH=CH-(CH2)i2-CH3 group.

[0223] As particularly preferred compounds, mention may also be made of 2-N-linoleoylamino-octadecane-1,3-diol; 2-N-oleoylamino-octadecane-1,3-diol; 2-N-palmitoylamino-octadecane-1,3-diol; 2-N-stearoylamino-octadecane-1,3-diol; 2-N-behenoylamino-octadecane-1,3-diol; 2-N-[2-hydroxy-palmitoyl]-amino-octadecane-1,3-diol; 2-N-stearoyl amino-octadecane-1,3,4 triol and in particular N-stearoyl phytosphingosine 2-N-palmitoylamino-hexadecane-1,3-diol, N-linoleoyldihydrosphingosine, N-oleoyldihydrosphingosine, N-palmitoyldihydrosphingosine, N-stearoyldihydrosphingosine, and N-behenoyldihydrosphingosine, N-docosanoyl N-methyl-D-glucamine, N-(2-hydroxyethyl)-N-(3-cetyloxy-2-hydroxypropyl)cetyl acid amide and bis-(N-hydroxyethyl N-cetyl) malonamide; and mixtures thereof. Preferably, N-oleoyldihydrosphingosine will be used.

[0224] The solid fatty substances are preferably chosen from solid fatty alcohols, in particular from cetyl alcohol, stearyl alcohol and their mixtures such as cetylstearyl or cetearyl alcohol.

[0225] Butters can also be used.

[0226] For the purposes of the present invention, the term "butter" (also called "pasty fat") means a lipophilic fatty compound with a reversible solid / liquid state change and comprising, at a temperature of 25°C and at atmospheric pressure (760 mm Hg), a liquid fraction and a solid fraction. Preferably, the butter(s) according to the invention have a melting start temperature greater than 25°C and an end melting temperature less than 60°C.

[0227] Preferably the particular butter(s) are of vegetable origin such as those described in Ullmann's Encyclopedia of Industrial Chemistry ("Fats and Fatty Oils", A. Thomas, Published Online: 15 JUN 2000, DOI: 10.1002 / 14356007.al0_173, point 13.2.2.2. Shea Butter, Borneo Tallow, and Related Fats (Vegetable Butters)).

[0228] We can cite more particularly shea butter, Nilotica Shea butter (Butyrospermum parkiï), Galam butter (Butyrospermum parkiï), Borneo butter or fat or tengkawang tallow) (Shorea stenoptera), Shorea butter, Illipé butter, Madhuca butter or Bassia Madhuca longifolia, mowrah butter (Madhuca Eatifolia), Katiau butter (Madhuca mottleyana), Phulwara butter (M. butyracea), mango butter (Mangifera indica), Murumuru butter (As-trocaryum murumuru), Kokum butter (Garcinia Indica), Ucuuba butter ( Virola sebifera), Tucuma butter, Painya butter (Kpangnan) (Pentadesma butyracea), coffee butter (Coffea arabica), apricot butter (Prunus Armeniaca), macadamia butter (Macadamia Ternifolia), grape seed butter (Vitis vinifera), avocado butter (Persea gratissima), olive butter (Olea europaea), sweet almond butter (Prunus amygdalus dulcis) and cocoa butter sunflower butter.

[0229] Shea butter is an example of a preferred butter.

[0230] As is known, shea butter is extracted from the fruits (also called "almonds" or "nuts") of the Butyrospemim Parkii tree. Each fruit contains between 45 and 55% fat, which is generally extracted and refined.

[0231] According to a preferred embodiment, the composition according to the invention comprises one or more liquid and / or solid fatty substances chosen in particular from butters, vegetable oils, liquid fatty esters of fatty acid and / or fatty alcohol, and mixtures thereof. More preferably, they are chosen from shea butter, sunflower, corn, soybean, pumpkin, grape seed, sesame, hazelnut, apricot, macadamia, arara, castor, avocado oils, isopropyl myristate, coco caprylate / caprate, amino silicones such as amodimethicones and bis-amino silicones and mixtures thereof.

[0232] Preferably, the composition according to the invention comprises one or more fatty substances, preferably one or more liquid fatty substances.

[0233] When the composition according to the invention comprises one or more fatty substances, their total content preferably varies from 0.1 to 30% by weight, preferably from 0.5 to 20% by weight, more preferably from 1 to 15% by weight, better still from 2 to 10%, even more preferably from 3 to 9% by weight relative to the total weight of the composition.

[0234] When the composition according to the invention comprises one or more liquid fatty substances, their total content preferably varies from 0.1 to 30% by weight, preferably from 0.5 to 20% by weight, more preferably from 1 to 15% by weight, better still from 2 to 10%, even more preferably from 3 to 9% by weight relative to the total weight of the composition.

[0235] Amphoteric or zwitterionic surfactant(s) The solid composition according to the invention may further comprise one or more amphoteric or zwitterionic surfactants.

[0236] In particular, the amphoteric or zwitterionic surfactant(s), preferably non-silicone, used in the solid composition according to the present invention, may in particular be derivatives of secondary or tertiary aliphatic amines, optionally quaternized, in which the aliphatic group is a linear or branched chain comprising from 8 to 22 carbon atoms, said amine derivatives containing at least one anionic group such as, for example, a carboxylate, sulfonate, sulfate group, phosphate or phosphonate.

[0237] Mention may be made in particular of alkyl(C8-C2o)betaines, alkyl(C8-C2o)sulfobetaines, alkyl(C8-C2o)amidoalkyl(Ci-C6)betaines, alkyl(C8-C20)-amidalkyl(Ci-C6)sulfobetaines, and mixtures thereof.

[0238] Among the derivatives of secondary or tertiary aliphatic amines, optionally quaternized, which can be used, as defined above, mention may also be made of the compounds of the following respective structures (III) and (IV):

[0239] Ra-CONHCH2CH2-N+(Rb)(Rc)-CH2COO, M+, X (III) formula (III), in which: - Ra represents a C10 to C30 alkyl or alkenyl group derived from an acid RaCOOH, preferably present in hydrolyzed coconut oil, preferably Ra represents a heptyl, nonyl or undecyl group; - Rb represents a beta-hydroxyethyl group; - Rc represents a carboxymethyl group; - M+ represents a cationic counterion derived from an alkali metal, alkaline earth metal, such as sodium, an ammonium ion or an ion derived from an organic amine; and - X represents an organic or inorganic anionic counterion, such as that chosen from halides, acetates, phosphates, nitrates, alkyl(Ci-C4)sulfates, alkyl(Ci-C4)- or alkyl(Ci-C4)aryl-sulfonates, in particular methylsulfate and ethylsulfate; or else M+ and X are absent;

[0240] Ra'-CONHCH2CH2-N(B)(B') (IV) formula (IV), in which: - B represents the group -CH2CH2OX'; - B' represents the group -(CH2)ZY', with z = 1 or 2; - X' represents the group -CH2COOH, -CH2-COOZ', -CH2CH2COOH, CH2CH2 -COOZ', or a hydrogen atom; - Y' represents the group -COOH, -COOZ', -CH2CH(OH)SO3H or the group CH2 CH(OH)SO3-Z'; - Z' represents a cationic counterion derived from an alkali or alkaline earth metal, such as sodium, an ammonium ion or an ion derived from an organic amine; - Ra' represents a C10 to C30 alkyl or alkenyl group of an Ra'-COOH acid preferably present in coconut oil or in hydrolyzed linseed oil, preferably Ra' an alkyl group, in particular Cp and its iso form, an unsaturated Cp group.

[0241] These compounds are classified in the CTFA dictionary, 5th edition, 1993, under the names disodium cocoamphodiacetate, disodium lauroamphodiacetate, disodium caprylamphodiacetate, disodium capryloamphodiacetate, disodium cocoampho-dipropionate, disodium lauroamphodipropionate, caprylamphodi- disodium propionate, disodium capryloamphodipropionate, lauroamphodipropionic acid, cocoamphodipropionic acid.

[0242] As an example, mention may be made of cocoamphodiacetate marketed by the company RHODIA under the trade name MIRANOL® C2M concentrate.

[0243] It is also possible to use compounds of formula (V): Ra”-NHCH(Y”)-(CH2)nCONH(CH2)nN(Rd)(Re) (V) formula (V), in which: - Y” represents the group -COOH, -COOZ”, -CH2-CH(OH)SO3H or the group CH2 CH(OH)SO3-Z”; - Rd and Re, independently of each other, represent a C1 to C4 alkyl or hydroxyalkyl radical; - Z” represents a cationic counterion derived from an alkali or alkaline earth metal, such as sodium, an ammonium ion or an ion derived from an organic amine; - Ra” represents a C10 to C30 alkyl or alkenyl group of an Ra”-COOH acid preferably present in coconut oil or in hydrolyzed linseed oil; and - n and n', independently of each other, denotes an integer ranging from 1 to 3.

[0244] Among the compounds of formula (V) we can cite the compound classified in the CTFA dictionary under the name sodium diethylaminopropyl cocoaspartamide and marketed by the company CHIMEX under the name CHIMEXANE HB.

[0245] These compounds can be used alone or in mixtures.

[0246] Among the amphoteric or zwitterionic surfactants mentioned above, advantageously used are alkyl(C8-C2o)betaines, such as cocobetaine, alkyl(C8-C20)amidoalkyl(C3-C8)betaines, such as cocamidopropylbetaine, alkyl(C8-C20)amphoacetates, alkyl(C8-C20)amphodiacetates and mixtures thereof; and preferably alkyl(C8-C2o)betaines, alkyl(C8-C20)amidoalkyl(C3-C8)betaines and mixtures thereof.

[0247] Preferably, the amphoteric or zwitterionic surfactant(s) are chosen from alkyl(C8-C20)betaines, alkyl(C8-C20)amidoalkyl(C3-C8)betaines and mixtures thereof, and better still from alkyl(C8-C20)amidoalkyl(C3-C8)betaines and mixtures thereof.

[0248] The composition according to the invention preferably comprises one or more amphoteric or zwitterionic surfactants.

[0249] When one or more amphoteric or zwitterionic surfactants are present in the solid composition according to the invention, their total content preferably ranges from 0.01 to 10% by weight, more preferably from 0.05 to 5% by weight, and better still from 0.1 to 1% by weight, relative to the total weight of the composition.

[0250] Cationic polymer(s) The solid composition according to the invention may further comprise one or more cationic polymers.

[0251] For the purposes of the present invention, the term "cationic polymer" means any polymer comprising cationic groups and / or groups ionizable into cationic groups. Preferably, the cationic polymer(s) are hydrophilic or amphiphilic.

[0252] The cationic polymers are preferably not silicone-containing (do not include a Si-O unit).

[0253] The preferred cationic polymers are chosen from those which contain units comprising primary, secondary, tertiary and / or quaternary amine groups which can either be part of the main polymer chain or be carried by a side substituent directly linked to it.

[0254] Preferably, the cationic polymers according to the invention do not comprise an anionic group or a group ionizable into anionic groups.

[0255] The cationic polymers that can be used preferably have a weight-average molar mass (Mw) of between 500 and 5.106 approximately, preferably of between 103 and 3.106 approximately.

[0256] Among the cationic polymers, we can cite more particularly:

[0257] (1) homopolymers or copolymers derived from acrylic esters or amides or methacrylic and comprising at least one of the units of the following formula: ^5 R. ......... me or o O To - N ...... Rg XR s ........CHp-Ç.—■ CH£"Q ■■■■■■■ o~ç NH NH At 4 H --------N--R, R, XR, formulas in which: - R3, identical or different, denote a hydrogen atom or a CH3 radical; - A, identical or different, represent a divalent alkyl group, linear or branched, of 1 to 6 carbon atoms, preferably 2 or 3 carbon atoms or a hydroxyalkyl group of 1 to 4 carbon atoms; - R4, R5 and R6, identical or different, represent an alkyl group having from 1 to 18 carbon atoms or a benzyl radical; preferably an alkyl group having from 1 to 6 carbon atoms; - R1 and R2, identical or different, represent a hydrogen atom or an alkyl group having from 1 to 6 carbon atoms, preferably methyl or ethyl; and - X denotes an anion derived from a mineral or organic acid such as a methosulfate anion or a halide such as chloride or bromide.

[0258] The copolymers of family (1) may also contain one or more units derived from comonomers which may be chosen from the family of acrylamides, methacrylamides, diacetone acrylamides, acrylamides and methacrylamides substituted on the nitrogen by lower alkyls (C1-C4), acrylic or methacrylic acids or their esters, vinyllactams such as vinylpyrrolidone or vinylcaprolactam, vinyl esters.

[0259] Among these copolymers of family (1), we can cite: - copolymers of acrylamide and dimethylaminoethyl methacrylate quaternized with dimethyl sulfate or with a dimethyl halide, such as that sold under the name HERCOFLOC by the company HERCULES, - copolymers of acrylamide and methacryloyloxyethyltrimethylammonium chloride, such as those sold under the name BINA QU AT P 100 by the company CIBA GEIGY, - the copolymer of acrylamide and methacryloyloxyethyltrimethylammonium methosulfate, such as that sold under the name RETEN by the company HERCULES, - vinylpyrrolidone / dialkylaminoalkyl acrylate or methacrylate copolymers, quaternized or not, such as the products sold under the name "GAFQUAT" by the company ISP such as for example "GAFQUAT 734" or "GAFQUAT 755" or the products called "COPOLYMER 845, 958 and 937". These polymers are described in detail in French patents 2,077,143 and 2,393,573, - dimethylaminoethyl methacrylate / vinylcaprolactam / vinylpyrrolidone terpolymers, such as the product sold under the name GAFFIX VC 713 by the company ISP, - vinylpyrrolidone / methacrylamidopropyldimethylamine copolymers, such as those marketed under the name STYLEZE CC 10 by ISP; - vinylpyrrolidone / dimethylaminopropyl methacrylamide copolymers quaternized, such as the product sold under the name "GAFQUAT HS 100" by the company ISP, - polymers, preferably crosslinked, of methacryloyloxyalkyl(Ci-C4)trialkyl(Ci-C4)ammonium salts such as polymers obtained by homopolymerization of dimethylaminoethylmethacrylate quaternized with methyl chloride, or by copolymerization of acrylamide with dimethylaminoethylmethacrylate quaternized with methyl chloride, the homo- or copolymerization being followed by crosslinking with an olefinically unsaturated compound, in particular methylene bisacrylamide. It is more particularly possible to use a crosslinked acrylamide / methacryloyloxyethyltrimethylammonium chloride copolymer (20 / 80 by weight) in the form of a dispersion comprising 50% by weight of said copolymer in mineral oil. This dispersion is marketed under the name "SALCARE® SC 92" by the company CIBA.A crosslinked homopolymer of methacryloyloxyethyl trimethylammonium chloride comprising about 50% by weight of the homopolymer in mineral oil or in a liquid ester can also be used. These dispersions are marketed under the names "SALCARE® SC 95" and "SALCARE® SC 96" by the company CIBA.

[0260] (2) Cationic polysaccharides, in particular inulins, celluloses and cationic galactomannan gums. Among the cationic polysaccharides, mention may be made more particularly of cellulose ether derivatives containing quaternary ammonium groups, cationic cellulose copolymers or cellulose derivatives grafted with a water-soluble quaternary ammonium monomer and cationic galactomannan gums.

[0261] Cellulose ether derivatives comprising quaternary ammonium groups are described in particular in FR 1 492 597, and mention may be made of the polymers marketed under the name "UCARE POLYMER JR" (JR 400 LT, JR 125, JR 30M) or "LR" (LR 400, LR 30M) by the company AMERCHOL. These polymers are also defined in the CTFA dictionary as quaternary ammoniums of hydroxyethylcellulose having reacted with an epoxide substituted by a trimethylammonium group.

[0262] Cationic cellulose copolymers or cellulose derivatives grafted with a water-soluble quaternary ammonium monomer are described in particular in US patent 4,131,576, and mention may be made of hydroxyalkylcelluloses, such as hydroxymethyl-, hydroxyethyl- or hydroxypropyl celluloses grafted in particular with a salt of methacryloylethyl trimethylammonium, methacrylamidopropyl trimethylammonium, dimethyl-diallylammonium. The marketed products meeting this definition are more particularly the products sold under the name "Celquat L 200" and "Celquat H 100" by the National Starch Company.

[0263] Among the cationic cellulose derivatives, celluloses can also be used cationic associative groups, which may be chosen from quaternized cellulose derivatives, and in particular quaternized celluloses modified by groups comprising at least one fatty chain, such as linear or branched alkyl, linear or branched arylalkyl, linear or branched alkylaryl, preferably linear or branched alkyl, these groups comprising at least 8 carbon atoms, in particular from 8 to 30 carbon atoms, better still from 10 to 24, or even from 10 to 14, carbon atoms; or mixtures thereof.

[0264] Preferably, mention may be made of quaternized hydroxyethylcelluloses modified by groups comprising at least one fatty chain, such as linear or branched alkyl, linear or branched arylalkyl, linear or branched alkylaryl, preferably linear or branched alkyl, these groups comprising at least 8 carbon atoms, in particular from 8 to 30 carbon atoms, better still from 10 to 24, or even from 10 to 14, carbon atoms; or mixtures thereof.

[0265] Preferably, mention may be made of hydroxyethylcelluloses of formula (VI): in which: - R represents an ammonium group RaRbRcN+-, Q in which Ra, Rb, and Rc, identical or different, represent a hydrogen atom or a linear or branched alkyl, C1 to C30, preferably an alkyl, and Q represents an anionic counterion such as a halide such as a chloride or bromide; - R' represents an ammonium group R'aR'bR'cN+-, Q' in which R'a, R'b, and R'c, identical or different, represent a hydrogen atom or a linear or branched alkyl, C1 to C30, preferably an alkyl, and Q' represents an anionic counterion such as a halide such as a chloride or bromide; it being understood that at least one of the radicals Ra, Rb, Rc, R'a, R'b, R'c represents a linear or branched alkyl, C8 to C30; - n, x and y, identical or different, represent an integer between 1 and 10,000.

[0266] Preferably, in formula (VI), at least one of the radicals Ra, Rb, Rc, R'a, R'b, R'c represents a linear or branched alkyl, C8 to C30; better still C10 to C24, or even C10 to C14; mention may in particular be made of the dodecyl radical (C12). Preferably, the other radical(s) represent a linear or branched alkyl, C1 to C4, in particular methyl.

[0267] Preferably, in formula (VI), only one of the radicals Ra, Rb, Rc, R'a, R'b, R'c represents a linear or branched alkyl, C8 to C30; better still C10 to C24, or even C10 to C50; in particular, mention may be made of the dodecyl radical (C12). Preferably, the other radicals represent a linear or branched alkyl, C1 to C4, in particular methyl.

[0268] Even better, R may be a group chosen from -N+(CH3)3, Q' and -N+(Ci2H25)(CH3)2, Q', preferably a group -N+(CH3)3, Q'.

[0269] Even better, R' can be a group -N+(Ci2H25)(CH3)2, Q'.

[0270] The aryl radicals preferably denote the phenyl, benzyl, naphthyl or anthryl groups.

[0271] We can notably cite the polymers with INCI names: - Polyquatemium-24, such as the product QUATRISOFT LM 200®, marketed by the company AMERCHOL / DOW CHEMICAL; - PG-Hydroxyethylcellulose Cocodimonium Chloride, such as the product CRODACEL QM®; - PG-Hydroxyethylcellulose Lauryldimonium Chloride (Ci2 alkyl), such as the product CRODACEL QL® and - PG-Hydroxyethylcellulose Stearyldimonium Chloride (C18 alkyl) such as the product CRODACEL QS®, marketed by the company CRODA.

[0272] Mention may also be made of hydroxyethylcelluloses of formula (VI) in which R represents trimethylammonium halide and R' represents dimethyldodecylammonium halide, preferably R represents trimethylammonium chloride Cl ,(CH3)3N+- and R' represents dimethyldodecylammonium chloride Cl ,(CH3)2(Ci2H25)N+-. This type of polymer is known under the INCI name Poly-quatemium-67; as commercial products, mention may be made of SOFTCAT POLYMER SL® polymers such as SL-100, SL-60, SL-30 and SL-5 from the company AMERCHOL / DOW CHEMICAL.

[0273] More particularly, the polymers of formula (VI) are, for example, those whose viscosity is inclusively between 2 and 3 Pa.s (between 2000 and 3000 cPs), preferably between 2.7 and 2.8 Pa.s (between 2700 and 2800 cPs). Typically, SOFTCAT POLYMER SL-5 has a viscosity of 2.5 Pa.s (2500 cPs), SOFTCAT POLYMER SL-30 has a viscosity of 2700 cPs, SOFTCAT POLYMER SL-60 has a viscosity of 2.7 Pa.s (2700 cPs) and SOFTCAT POLYMER SL-100 has a viscosity of 2.8 Pa.s (2800 cPs). SOFTCAT POLYMER SX-1300X with a viscosity between 1 and 2 Pa.s (1000 and 2000 cPs) can also be used.

[0274] Cationic galactomannan gums are described more particularly in US patents 3,589,578 and US 4,031,307, and mention may be made of guar gums comprising cationic trialkylammonium groups. For example, guar gums modified with a salt (for example a chloride) of 2,3-epoxypropyl trimethylammonium. Such products are marketed in particular under the names JAGUAR C13 S, JAGUAR C 15, JAGUAR C 17 or JAGUAR Cl62 by the company RHODIA.

[0275] (3) polymers consisting of piperazinyl units and divalent alkylene radicals or hydroxyalkylene with linear or branched chains, optionally interrupted by oxygen, sulfur, nitrogen atoms or by aromatic or heterocyclic rings, as well as the oxidation and / or quaternization products of these polymers.

[0276] (4) water-soluble polyaminoamides, prepared in particular by polycon densification of an acidic compound with a polyamine; these polyaminoamides can be crosslinked by an epihalohydrin, a diepoxide, a dianhydride, an unsaturated dianhydride, a bis-unsaturated derivative, a bis-halohydrin, a bis-azetidinium, a bis-haloacyldiamine, an alkyl bis-halide or by an oligomer resulting from the reaction of a bifunctional compound reactive with a bis-halohydrin, a bis-azetidinium, a bis-haloacyldiamine, an alkyl bis-halide, an epihalohydrin, a diepoxide or a bis-unsaturated derivative; the crosslinking agent being used in proportions ranging from 0.025 to 0.35 mole per amine group of the polyaminoamide; these polyaminoamides can be alkylated or, if they contain one or more tertiary amine functions, quaternized.

[0277] (5) polyaminoamide derivatives resulting from the condensation of polyalkylenes polyamines with polycarboxylic acids followed by alkylation by bifunctional agents. Examples include adipic acid-diacoylaminohydroxyalkyldialoylene triamine polymers in which the alkyl radical contains 1 to 4 carbon atoms and preferably denotes methyl, ethyl, propyl. Among these derivatives, mention may be made more particularly of the adipic acid / dimethylaminohydroxypropyl / diethylene triamine polymers sold under the name "Cartaretine F, F4 or F8" by the company Sandoz.

[0278] (6) polymers obtained by reaction of a polyalkylene polyamine comprising two primary amine groups and at least one secondary amine group with a dicarboxylic acid chosen from diglycolic acid and saturated aliphatic dicarboxylic acids having from 3 to 8 carbon atoms; the molar ratio between the polyalkylene polyamine and the dicarboxylic acid preferably being between 0.8:1 and 1.4:1; the resulting polyaminoamide being reacted with epichlorohydrin in a molar ratio of epichlorohydrin relative to the secondary amine group of the polyaminoamide preferably between 0.5:1 and 1.8:1. Polymers of this type are in particular marketed under the name "Hercosett 57" by the company Hercules Inc. or under the name "PD 170" or "Delsette 101" by the company Hercules in the case of the adipic acid / epoxypropyl / diethylene-triamine copolymer.

[0279] (7) alkyl diallyl amine or dialkyl diallyl ammonium cyclopolymers such as homopolymers or copolymers comprising as the main constituent of the chain units corresponding to formulas (VII) or (VIII): (CH,> (CH,)k -(CH2>--CRÎ5 C(Rt2)-CH2- -(CH Ai----CFU C <r.j2)-ch2- H^C CH2 HX CH2 (VU) Y. H formulas (VII) and (VIII), in which: - k and t are equal to 0 or 1, the sum k + t being equal to 1; - Rn denotes a hydrogen atom or a methyl radical; - R10 and Rn, independently of each other, denote an alkyl group having from 1 to 6 carbon atoms, a hydroxyalkyl group in which the alkyl group has from 1 to 5 carbon atoms, a C1 to C4 amidoalkyl group; or R10 and Rn may denote, together with the nitrogen atom to which they are attached, heterocyclic groups, such as piperidinyl or morpholinyl; R10 and Rn, independently of each other, preferably denote an alkyl group having from 1 to 4 carbon atoms; and - Y is an anion such as bromide, chloride, acetate, borate, citrate, tartrate, bisulfate, bisulfite, sulfate, phosphate.

[0280] Mention may be made more particularly of the homopolymer of salts (for example chloride) of dimethyldiallylammonium, for example sold under the name "MERQUAT 100" by the company NALCO (and their counterparts with low weight-average molar masses) and the copolymers of salts (for example chloride) of diallyldimethylammonium and acrylamide sold in particular under the name "MERQUAT 550" or "MERQUAT 7SPR".

[0281] (8) quaternary diammonium polymers comprising recurring units of formula (IX): (IX) formula (IX), in which: - Rn, Ru, Rb and Ri6, identical or different, represent aliphatic, alicyclic, or arylaliphatic radicals comprising from 1 to 20 carbon atoms or lower hydroxyalkylaliphatic radicals, or Rn, Rm, R[5 and R[6, together or separately, constitute with the nitrogen atoms to which they are attached heterocycles optionally comprising a second heteroatom other than nitrogen or Rn, Rm, R15 and R16 represent a linear or branched C1 to C6 alkyl radical substituted by a nitrile, ester, acyl, amide or -CO-O-Rp-D or -CO-NH-R17-D group where R 17 is an alkylene and D a quaternary ammonium group; - Ai and Bi represent divalent polymethylene groups comprising from 2 to 20 carbon atoms which may be linear or branched, saturated or unsaturated, and which may contain, linked to or intercalated in the main chain, one or more aromatic rings, or one or more oxygen or sulfur atoms or sulfoxide, sulfone, disulfide, amino, alkylamino, hydroxyl, quaternary ammonium, ureido, amide or ester groups, and - X denotes an anion derived from a mineral or organic acid; it being understood that Ai, Rn and Ri5 can form with the two nitrogen atoms to which they are attached a piperazine ring; furthermore, if Ai denotes a linear or branched, saturated or unsaturated alkylene or hydroxyalkylene radical, Bi can also denote a group (CH2)n-CO-D-OC-(CH2)n- in which D denotes: (a) a glycol residue of formula -OZO-, where Z denotes a linear or branched hydrocarbon radical or a group corresponding to one of the following formulae: -(CH2 -CH2-O)X-CH2-CH2- and -[CH2-CH(CH3)-O]y-CH2-CH(CH3)- where x and y denote an integer from 1 to 4, representing a defined and unique degree of polymerization or any number from 1 to 4 representing an average degree of polymerization; (b) a bis-secondary diamine residue such as a piperazine derivative; c) a bis-primary diamine residue of formula: -NH-Y-NH-, where Y denotes a linear or branched hydrocarbon radical, or the divalent radical -CH2-CH2-SS-CH2-CH2-; Or d) a ureylene group of formula: -NH-CO-NH-.

[0282] Preferably, X is an anion such as chloride or bromide. These polymers have a number-average molar mass (Mn) generally between 1000 and 100000.

[0283] We can cite more particularly the polymers which are made up of recurring units corresponding to the formula (X): RR i,. , n -N (GH2)n—H—(CHJ —

[0284]

[0285]

[0286]

[0287]

[0288]

[0289] formula (X) in which Rb R2, R3 and R4, identical or different, denote an alkyl or hydroxyalkyl radical having from 1 to 4 carbon atoms approximately, n and p are whole numbers varying from 2 to 20 approximately and, X is an anion derived from a mineral or organic acid. A particularly preferred compound of formula (X) is that for which RB R2, R3 and R4 represent a methyl radical, n=3, p=6 and X = Cl, called Hexadimethrine chloride according to the INCI nomenclature (CTFA). (9) quaternary polyammonium polymers comprising units of formula (XI): — N + - ( CHX - NH - CG - (CH4 - CG - NH • (CH A - N* - A — XJ - ' ' zs l (XI) x_ R21 formula (XI), in which: - R18, R19, R20 and R2i, identical or different, represent a hydrogen atom or a methyl, ethyl, propyl, [3-hydroxyethyl, [3-hydroxypropyl or -CH2CH2 (OCH2CH2)POH radical, where p is equal to 0 or to an integer between 1 and 6, provided that R[8, R19, R20 and R2[ do not simultaneously represent a hydrogen atom, - r and s, identical or different, are whole numbers between 1 and 6, - q is equal to 0 or to an integer between 1 and 34, - X denotes an anion such as a halide, and - A denotes a radical of a dihalide or preferably represents -CH2-CH2 -o-ch2-ch2-. Examples include the products "Mirapol® A 15", "Mirapol® ADI", "Mirapol® AZ1" and "Mirapol® 175" sold by the company Miranol. (10) quaternary polymers of vinylpyrrolidone and vinylimidazole such as, for example, the products marketed under the names Luviquat® FC 905, FC 550 and FC 370 by the company BASF (11) polyamines such as Polyquart® H sold by COGNIS, referenced under the name “POLYETHYLENEGLYCOL (15) TALLOW POLYAMINE” in the CTFA dictionary. (12) polymers comprising in their structure: (a) one or more patterns corresponding to the following formula (A'): (b) optionally one or more units corresponding to the following formula (B'): CH» CH ! (B') 1^1 ô

[0290] In other words, these polymers can be chosen in particular from homo- or copolymers comprising one or more units derived from vinylamine and optionally one or more units derived from vinylformamide.

[0291] Preferably, these cationic polymers are chosen from polymers comprising, in their structure, from 5 to 100 mol% of units corresponding to formula (A') and from 0 to 95 mol% of units corresponding to formula (B'), preferably from 10 to 100 mol% of units corresponding to formula (A') and from 0 to 90 mol% of units corresponding to formula (B').

[0292] These polymers can be obtained for example by partial hydrolysis of polyvinylformamide. This hydrolysis can be carried out in an acidic or basic medium.

[0293] The weight-average molecular mass of said polymer, measured by light diffraction, may vary from 1000 to 3,000,000 g / mol, preferably from 10,000 to 1,000,000 and more particularly from 100,000 to 500,000 g / mol.

[0294] The cationic charge density of these polymers can vary from 2 meq / g to 20 meq / g, preferably from 2.5 to 15 and more particularly from 3.5 to 10 meq / g.

[0295] The polymers comprising units of formula (A) and optionally units of formula (B) are notably sold under the name LUPAMIN by the company BASF, such as, for example, and in a non-limiting manner, the products offered under the names LUPAMIN 9095, LUPAMIN 5095, LUPAMIN 1095, LUPAMIN 9030 (or LUVIQUAT 9030) and LUPAMIN 9010.

[0296] Preferably, the cationic polymer(s) are chosen from cationic polysaccharides (family (2)) and their mixtures, more preferably from cationic galactomannan gums and their mixtures, and better still from cationic guar gums and their mixtures.

[0297] Preferably, the solid composition according to the invention comprises one or more cationic polymers.

[0298] More preferably, the solid composition according to the invention comprises one or more cationic polymers chosen from cationic polysaccharides (family (2)) and their mixtures, more preferably from cationic galactomannan gums and their mixtures, and better still from cationic guar gums and their mixtures.

[0299] Still preferentially, the solid composition according to the invention comprises one or more cationic polymers chosen from cationic polysaccharides (family (2)), cyclopolymers of alkyl diallyl amine or dialkyl diallyl ammonium (family 7) and mixtures thereof, even more preferably among mixtures of cationic galactomannan gums and cyclopolymers of alkyl diallyl amine or dialkyl diallyl ammonium, better still among mixtures of cationic guar gums and copolymers of salts (for example chloride) of diallyldimethylammonium and acrylamide.

[0300] The total content of the cationic polymer(s) present in the solid composition according to the invention is preferably greater than or equal to 0.05% by weight, more preferably ranging from 0.05 to 5% by weight, better still from 0.1 to 2% by weight, and even more preferably from 0.2 to 1.5% by weight, relative to the total weight of the composition.

[0301] According to a preferred embodiment, the cationic polymer(s) are chosen from cationic polysaccharides (family (2)) and their mixtures, and the total content of the cationic polysaccharide(s), present in the solid composition according to the invention, is preferably greater than or equal to 0.05% by weight, more preferably ranging from 0.05 to 5% by weight, and better still from 0.1 to 2% by weight, or even from 0.2 to 1.5% by weight relative to the total weight of the composition.

[0302] Polyol(s) The solid composition according to the invention may further comprise one or more polyols.

[0303] The polyol(s) present in the solid composition of the invention are preferably chosen from the polyols of the following formula (XII): R 2 R'; FL---C----■ [A] ----- C---Xt । LJ m । OH OH (XII) formula (XII) in which: - R'i, R'2, RL and R'4, identical or different, independently denote a hydrogen atom, a linear or branched C1 to C6 alkyl radical or a C1 to C6 mono or polyhydroxyalkyl radical, - A denotes an alkyl radical, saturated or unsaturated, linear or branched, containing from 1 to 18 carbon atoms, this radical comprises from 0 to 9 oxygen atoms, but no hydroxyl group, and - m denotes 0 or 1.

[0304] According to a first embodiment of the invention, the polyol(s) are preferably chosen from polyols of formula (XII), in which m is 0, and their mixtures, and more preferably among propylene glycol (propane-1,2-diol), 1,2,3-propanetriol, pinacol (2,3-dimethyl 2,3-butanediol), 1,2,3-butanetriol, 2,3-butanediol, glycerin, sorbitol and their mixtures.

[0305] According to another embodiment of the invention, the polyol(s) are preferably chosen from polyols of formula (XII), in which m is 1 and R'b R'2, R'3, and R'4, which may be identical or different, denote, independently of one another, a hydrogen atom or a C1 to C6 alkyl radical, and mixtures thereof. According to this embodiment, the polyol(s) are advantageously chosen from polyethylene glycols and mixtures thereof, and more particularly the product named PEG-6 or PEG-8 in the CTFA (International Cosmetic Ingredient Dictionary, Seventh Edition) work.

[0306] According to yet another embodiment of the invention, the polyol(s) are preferably chosen from polyols of formula (XII), in which m is 1 and R\, R'2, R'3, and R'4, identical or different, denote, independently of one another, a hydrogen atom or a C1 to C6 alkyl radical, and whose molecular weight is less than 200, and mixtures thereof. According to this particular embodiment, the polyol(s) are preferably chosen from 3-methyl-1,3,5-pentanetriol, 1,2,4-butanetriol, 1,5-pentanediol, 2-methyl-1,3-propanediol, 1,3-butanediol, 3-methyl-1,5-pentanediol, neopentyl glycol (2,2-dimethyl-1,3-propanediol), isoprene glycol (3-methyl-1,3-butanediol), hexylene glycol (2-methyl-2,4-pentanediol) and mixtures thereof, and more preferably from hexylene glycol, neopentyl glycol, 3-methyl-1,5-pentanediol and mixtures thereof.

[0307] Preferably, the molecular weight (MW) of said polyol(s) present in the solid composition of the invention is between 50 and 350, more preferably between 60 and 200, and better still between 70 and 150.

[0308] Preferably, the polyol(s) are chosen from diols, glycerin, and mixtures thereof, more preferably from compounds of formula (XII) in which R'i, R'2, R'3 and R'4, identical or different, independently of one another denote a hydrogen atom or a C1 to C6 alkyl radical, glycerin and mixtures thereof.

[0309] Advantageously, the polyol(s) are chosen from glycerin, propylene glycol (propane-1,2-diol), pinacol (2,3-dimethyl-2,3-butanediol), 2,3-butanediol, polyethylene glycols, 1,5-pentanediol, 2-methyl-1,3-propanediol, 1,3-butanediol, 3-methyl-1,5-pentanediol, neopentyl glycol (2,2-dimethyl-1,3-propanediol), isoprene glycol (3-methyl-1,3-butanediol), hexylene glycol (2-methyl-2,4-pentanediol), dipropylene glycol, and mixtures thereof. Preferably, the polyol is glycerin, propylene glycol or dipropylene glycol.

[0310] Preferably, the composition according to the invention comprises one or more polyols, in particular chosen from the group consisting of glycerin, propylene glycol or dipropylene glycol.

[0311] The total content of the polyol(s), when present in the solid composition according to the invention, preferably ranges from 0.1 to 15% by weight, more preferably from 0.5 to 10% by weight, and better still from 1 to 5% by weight, relative to the total weight of the composition.

[0312] Anti-caking agent(s) The solid composition according to the invention may further comprise one or more anti-caking agents.

[0313] For the purposes of the present invention, the term “anticaking agent” means a lubricant acting as an anti-caking agent.

[0314] The lubricant(s) that can be used are different from the cationic polymers defined above.

[0315] Among the lubricants that can be used in the solid composition of the invention, mention may in particular be made of silica, in particular anhydrous colloidal silica, sericite, polyamide (Nylon®), poly-p-alanine and polyethylene powders, tetrafluoroethylene polymer powders (Teflon®), acrylate and dimethicone copolymers, stearic acid, metal soaps derived from organic carboxylic acids having from 8 to 22 carbon atoms, preferably from 12 to 18 carbon atoms, such as, for example, zinc, magnesium or lithium stearates, zinc laurate and magnesium myristate, alkali or alkaline earth metal carbonates, such as, for example, magnesium, sodium and calcium carbonates, fatty acids such as stearic acid, celluloses, in particular crystalline celluloses, and mixtures thereof.

[0316] According to one embodiment, the anti-caking agent(s) are advantageously chosen from metallic soaps derived from organic carboxylic acids having from 8 to 22 carbon atoms, preferably from 12 to 18 carbon atoms, and mixtures thereof, better still from zinc stearate, magnesium stearate, lithium stearate, zinc laurate, magnesium myristate and mixtures thereof. More preferably, the lubricant is magnesium stearate.

[0317] According to another embodiment, the anti-caking agent(s) are advantageously chosen from alkali or alkaline-earth metal carbonates and their mixtures, preferably from magnesium carbonate, sodium carbonate, calcium carbonate and their mixtures; and more preferably magnesium carbonate.

[0318] Preferably, the composition according to the invention comprises one or more anti-caking agents.

[0319] The total content of the anti-caking agent(s), when present in the solid composition according to the invention, preferably ranges from 0.1 to 20% by weight, more preferably potentially from 1 to 15% by weight, and better still from 5 to 10% by weight, relative to the total weight of the composition.

[0320] The solid composition according to the invention may further comprise water.

[0321] Preferably the water content is less than or equal to 20% by weight, preferably less than or equal to 15% by weight, better still less than or equal to 10% relative to the total weight of the composition.

[0322] Preferably, the water content ranges from 0.1 to 20% by weight, more preferably from 1 to 15% by weight, and better still from 2 to 10% by weight, relative to the total weight of the composition.

[0323] The solid composition according to the invention may further comprise sodium chloride. Its content may range from 0.01 to 5% by weight, more preferably from 0.1 to 3% by weight, and better still from 0.2 to 2% by weight relative to the total weight of the composition.

[0324] The composition according to the invention may have a pH ranging from 3 to 6, preferably 3.5 to 5.5, more preferably ranging from 4 to 5.

[0325] The present invention also relates to a process for the cosmetic treatment, in particular for the care of keratin fibers, in particular human keratin fibers such as hair, comprising the application to said keratin fibers of a solid composition as defined above; the solid composition being applied directly to said keratin fibers or after having been previously moistened with water.

[0326] The solid composition according to the invention can be applied to dry or wet keratin fibers, and preferably to wet keratin fibers.

[0327] The solid composition, thus applied, may optionally be rinsed or not, after a possible exposure time which may range from 1 to 15 minutes, preferably from 2 to 10 minutes.

[0328] Preferably, the solid composition is rinsed after application.

[0329] According to a first embodiment of the invention, the solid composition is applied directly to the keratin fibers, that is to say without being previously moistened and / or disintegrated in water.

[0330] When, according to this first embodiment, the solid composition of the invention is applied directly (i.e. without prior moistening or disintegration) to the dry keratin fibers, water may optionally be added to said fibers and then rubbed / massaged in order to solubilize said composition and form a liquid composition. The liquid composition thus obtained may then be rinsed after a possible exposure time.

[0331] Conversely, the solid composition of the invention can also be applied directly (i.e. without prior moistening or disintegration) to the wet keratin fibers, then massaged / rubbed to disintegrate the particles and obtain a composition liquid position. The liquid composition thus obtained can then be rinsed after a possible exposure time.

[0332] According to another embodiment of the invention, the solid composition is previously moistened and / or disintegrated in water before being applied to the keratin fibers. According to this embodiment, a small quantity (preferably ranging from 1 to 3 g) of solid composition is advantageously taken and solubilized with water, for example in the hand, so as to form a liquid composition. The liquid composition thus obtained can then be applied to the keratin fibers, dry or wet, before being optionally rinsed with water after a possible exposure time.

[0333] The present invention further relates to the use of a solid composition as defined above for the cosmetic treatment, preferably the care, of keratin fibers, in particular human keratin fibers such as hair.

[0334] The present invention also relates to a packaging article, preferably cosmetic, comprising: - an envelope defining at least one cavity, the envelope comprising one or more water-soluble and / or fat-soluble compounds, - a solid composition as defined above; it being understood that the solid composition is located in one of the cavities defined by the envelope.

[0335] By "cosmetic packaging article" is meant an article suitable for cosmetic use; in particular for use of the packaging article on keratin fibers, in particular hair and / or on the scalp. In particular, the packaging article makes it possible to condition keratin fibers, in particular human keratin fibers such as hair.

[0336] Preferably, the packaging article according to the invention is water-soluble or liposoluble at a temperature less than or equal to 35°C.

[0337] Preferably, the envelope of the packaging article according to the invention is water-soluble at a temperature less than or equal to 35°C.

[0338] By "water-soluble" is meant soluble in water, in particular at a rate of at least 10 grams per liter of water, preferably at least 20 g / l, better still at least 50 g / L at a temperature less than or equal to 35°C. Thus, when water preferably having a temperature less than or equal to 35°C is added to the packaging article, the envelope will dissolve and release the solid composition present in one of the cavities of the envelope.

[0339] By "liposoluble" is meant soluble in a liquid fatty substance as defined below, in particular at a rate of at least 10 grams per liter of liquid fatty substance, in particular in a vegetable or mineral oil such as vaseline oil, preferably at least 20 g / l in a liquid fatty substance, better still at least 50 g / l in a fatty substance, at a temperature less than or equal to 35°C.

[0340] The term “temperature less than or equal to 35°C” means a temperature not exceeding 35°C but greater than or equal to 0°C, for example ranging from more than 1 to 35°C, preferably from 5 to 30°C, more preferably from 10 to 30°C, and better still from 15 to 25°C. It is understood that all temperatures are given at atmospheric pressure (1 atm).

[0341] The packaging article may comprise one or more cavities, at least one of which contains the solid composition as defined above. Preferably, the packaging article comprises only one cavity in which the solid composition is contained.

[0342] Advantageously, the envelope represents from 0.5 to 20% by weight, preferably from 1 to 15% by weight, more preferably from 2 to 10% by weight, and better still from 4 to 8% by weight, relative to the total weight of the packaging article.

[0343] Advantageously, the solid composition as defined above represents from 80 to 99.5% by weight, preferably from 85 to 99% by weight, more preferably from 90 to 98% by weight, and better still from 92 to 96% by weight, relative to the total weight of the packaging article.

[0344] The weight ratio between the total weight of the solid composition of the invention and the total weight of the envelope advantageously ranges from 80 / 20 to 99 / 1, preferably from 85 / 15 to 98 / 2, and more preferably from 90 / 10 to 97 / 3.

[0345] The envelope of the packaging article comprises one or more water-soluble and / or liposoluble compounds, preferably one or more water-soluble compounds advantageously chosen from water-soluble polymers and their mixtures.

[0346] The water-soluble polymer(s) usable according to the present invention contain water-soluble units in their backbones. The water-soluble units are obtained from one or more water-soluble monomers.

[0347] By "water-soluble monomer" is meant a monomer whose solubility in water is greater than or equal to 1%, preferably greater than or equal to 5% at 25°C and at atmospheric pressure (760 mm Hg).

[0348] The said water-soluble polymer(s) capable of forming the envelope are advantageously obtained from water-soluble monomers comprising at least one double bond. The latter may be chosen from cationic, anionic, non-ionic monomers and their mixtures.

[0349] As water-soluble monomers capable of being used as precursors of water-soluble units, alone or in a mixture, the following monomers may be cited as examples, which may be in free or salified form: - (meth)acrylic acid, - styrene sulfonic acid, - vinylsulfonic acid and (meth)allylsulfonic acid, - vinyl phosphonic acid, - N-vinylacetamide and N-methyl N-vinylacetamide, - N-vinylformamide and N-methyl N-vinylformamide, - N-vinyllactams containing a cyclic alkyl group having from 4 to 9 carbon atoms, such as N-vinylpyrrolidone, N-butyrolactam and N-vinylcaprolactam, - maleic anhydride, - itaconic acid, - vinyl alcohol of formula CH2=CHOH, - vinyl acetate of formula CH2=CHOC(O)CH3, - vinyl ethers of formula CH2=CHOR in which R is a hydrocarbon radical, linear or branched, saturated or unsaturated, having from 1 to 6 carbon atoms, - dimethyldiallyl ammonium halides (chloride), - quaternized dimethylaminoethyl methacrylate (MADAME), - (meth)acrylamidopropyltrimethylammonium halides (chloride) (APTAC and MAPTAC), - methylvinylimidazolium halides (chloride), - 2-vinylpyridine and 4-vinylpyridine, - acrylonitrile, - glycidyl (meth)acrylate, - vinyl halides (chloride) and vinylidene chloride, - vinyl monomers of the following formula: H2C=C(R)-C(O)-X, in which: - R is selected from H, (Ci-C6)alkyl such as methyl, ethyl and propyl, and - X is chosen from: - alkoxy of the -OR' type where R' is a linear or branched, saturated or unsaturated hydrocarbon radical having from 1 to 6 carbons, optionally substituted by at least one halogen atom (iodine, bromine, chlorine, fluorine); a sulfonic group (-SO3), sulfate (SO4), phosphate (-PO4H2); hydroxy (-OH); primary amine (-NH2); secondary amine (NHR6), tertiary (-NR6R7) or quaternary (-N+R6R7R8) with R6, R7 and R8 being, independently of each other, a linear or branched, saturated or unsaturated hydrocarbon radical having 1 to 6 carbon atoms, provided that the sum of the carbon atoms of R' + R6 + R7 + R8 does not exceed 6; - the groups -NH2, -NHR' and -NR'R" in which R' and R" are independently of each other linear or branched, saturated or unsaturated hydrocarbon radicals having 1 to 6 carbon atoms, provided that the total number of carbon atoms of R' + R" does not exceed 6, said R' and R" being optionally substituted by a halogen atom (iodine, bromine, chlorine, fluorine); a hydroxy group (-OH); sulfonic (-SO3); sulfate (SO4); phosphate (-PO4H2); primary amine (-NH2); secondary (-NHR6), tertiary (NR6R7) and / or quaternary (-N+R6R7R8) amine with R6, R7 and R8 being, independently of each other, a linear or branched, saturated or unsaturated hydrocarbon radical having 1 to 6 carbon atoms, provided that the sum of the carbon atoms of R' + R” + R6 + R7 + R8 does not exceed 6. Examples of compounds having this formula include N,N-dimethylacrylamide and N,N-diethylacrylamide; and - and mixtures thereof.

[0350] As anionic monomers, mention may in particular be made of (meth)acrylic acid, acrylamido-2-methylpropanesulfonic acid, itaconic acid and their salts of an alkali metal, alkaline earth metal or ammonium or those derived from an organic amine such as alkanolamine.

[0351] As non-ionic monomers, mention may in particular be made of (meth)acrylamide, N-vinylformamide, N-vinylacetoamide and hydroxypropyl (meth)acrylate, vinyl alcohol of formula CH2=CHOH, and vinyl acetate of formula CH2=CHOC(O)CH3.

[0352] The cationic monomers are preferably chosen from quaternary ammonium salts derived from a diallylamine, and those corresponding to the following formula: H2C=C(Ri)-D-N+R2R3R4, X in which: • Ri represents a hydrogen atom or a methyl group, • R2 and R3, identical or different, represent a hydrogen atom or a linear or branched C1 to C4 alkyl group, • Ri represents a hydrogen atom, a linear or branched C1 to C4 alkyl group or an aryl group, • D represents the following divalent motif: -(Y)n-(A)- in which: - Y represents an amide function, an ester (OC(O) or C(O)-O), a urethane or a urea, - A represents a linear or branched, cyclic or acyclic C1 to C10 alkylene group, which may be substituted or interrupted by a divalent aromatic or heteroaromatic group. The alkylene groups may be interrupted by an oxygen atom, a nitrogen atom, a sulfur atom or a phosphorus atom; the alkylene may be interrupted by a ketone function, an amide, an ester (OC(O) or C(O)-O), a urethane, or a urea, - n is an integer ranging from 0 to 1, • X represents an anionic counterion, such as chloride or sulfate.

[0353] As examples of water-soluble cationic monomers, we can in particular cite the following compounds and their salts: dimethylaminoethyl (meth)acrylate, (meth)acryloyloxyethyltrimethylammonium (meth)acrylate, (meth)acryloyloxyethyldimethylbenzylammonium (meth)acrylate, N-[dimethylaminopropyl](meth)-acrylamide (meth)acrylate, (meth)acrylamidopropyltrimethylammonium (meth)acrylate, (meth)acrylamidopropyldimethylbenzylammonium (meth)acrylate, dimethylaminohydroxypropyl (meth)acrylate, (meth)acryloyloxyhydroxypropyltrimethylammonium (meth)acrylate, (meth)acryloyloxyhydroxypropyldimethylbenzylammonium (meth)acrylate and di-methyldiallylammonium (meth)acrylate.

[0354] Among the water-soluble polymers that can be used according to the present invention, mention may also be made of polyhydroxyalkanoates (PHA), poly(hydroxybutyrate)(PHB), poly(hydroxyvalerate) (PHV), biodegradable polyesters and their mixtures.

[0355] Preferably, the water-soluble polymers are polymerized from one or more monomers chosen from vinyl alcohol of formula CH2=CHOH, vinyl acetate of formula CH2=CHOC(O)CH3 and mixtures thereof.

[0356] The water-soluble polymers capable of forming the envelope of the packaging article may also be chosen from water-soluble polymers derived from natural products, such as polysaccharides, i.e. polymers with sugar units. These water-soluble polymers are different from the cationic polysaccharide(s) that may be present in the solid composition.

[0357] By "sugar unit" is meant a unit derived from a carbohydrate of formula Cn(H2O)ni or (CH2O)n which may optionally be modified by substitution and / or by oxidation and / or by dehydration. The sugar units capable of entering into the composition of the polymers of the invention are preferably derived from the following sugars: glucose, galactose, arabinose, rhamnose, mannose, xylose, fucose, fructose, anhydrogalactose, galacturonic acid, glucuronic acid, mannuronic acid, galactose sulfate, anhydrogalactose sulfate.

[0358] The polymers with sugar unit(s) according to the invention may be of natural or synthetic origin. They may be non-ionic, anionic, amphoteric or cationic. The basic units of the polymers with sugar unit of the invention may be mono- or disaccharides.

[0359] The following native gums and their derivatives may be mentioned in particular as polymers that can be used: (a) exudates from trees or shrubs including: - gum arabic (branched polymer of galactose, arabinose, rhamnose and glucuronic acid); - gum ghatti (polymer from arabinose, galactose, mannose, xylose and glucuronic acid); - karaya gum (polymer from galacturonic acid, galactose, rhamnose and glucuronic acid); - gum tragacanth (or tragacanth) (polymer of galacturonic acid, galactose, fucose, xylose and arabinose); b) gums derived from algae including: - agar (polymer derived from galactose and anhydrogalactose); - alginates (polymers of mannuronic acid and glucuronic acid); - carrageenans and furcellerans (polymers of galactose sulfate and anhydrogalactose sulfate); (c) gums from seeds or tubers of which: - guar gum (polymer of mannose and galactose); - carob gum (polymer of mannose and galactose); - fenugreek gum (polymer of mannose and galactose); - tamarind gum (polymer of galactose, xylose and glucose); - konjac gum (polymer of glucose and mannose) whose main constituent is glucomannan is a high molecular weight polysaccharide (500,000 < M giu comannan < 2,000,000) composed of D-mannose and D-glucose units with a branching every 50 or 60 units approximately; (d) microbial gums including: - xanthan gum (polymer of glucose, mannose acetate, mannose / pyruvic acid and glucuronic acid); - gellan gum (polymer of partially acylated glucose, rhamnose and glucuronic acid); - scleroglucan gum (glucose polymer); - biosaccharide gum (polymer of galacturonic acid, fucose and D-galactose), e) plant extracts including: - cellulose (polymer of glucose); - starch (glucose polymer) natural or modified (aluminium starch octenyl succinate, hydroxypropyl starch phosphates); - inulin (polymer of fructose and glucose).

[0360] These polymers can be modified physically or chemically. As a physical treatment, temperature may be mentioned in particular. As chemical treatments, esterification, etherification, amidation and oxidation reactions may be mentioned. These treatments make it possible to produce polymers which may be non-ionic, anionic, cationic or amphoteric.

[0361] Preferably, these chemical or physical treatments are applied to the guar gums, locust bean gums, starches and celluloses.

[0362] The non-ionic guar gums that can be used according to the invention can be modified by C1 to C6 hydroxyalkyl groups. Among the hydroxyalkyl groups, mention may be made of hydroxymethyl, hydroxyethyl, hydroxypropyl and hydroxybutyl groups.

[0363] These guar gums are well known in the state of the art and can for example be prepared by reacting corresponding alkene oxides such as for example propylene oxides with guar gum, so as to obtain a guar gum modified by hydroxypropyl groups.

[0364] The hydroxyalkylation rate preferably varies from 0.4 to 1.2 and corresponds to the number of alkylene oxide molecules consumed by the number of free hydroxyl functions present on the guar gum.

[0365] Such non-ionic guar gums, optionally modified by hydroxyalkyl groups, are for example sold under the trade names JAGUAR HP8, JAGUAR HP60 and JAGUAR HP120 by the company RHODIA CHIMIE.

[0366] The guar gums modified by cationic groups which can be used more particularly according to the invention are guar gums comprising cationic trialkylammonium groups. Preferably, 2 to 30% by number of the hydroxyl functions of these guar gums carry cationic trial-kyammonium groups. Even more preferably, 5 to 20% of the number of hydroxyl functions of these guar gums are connected by cationic trial-kyammonium groups. Among these trialkylammonium groups, mention may be made in particular of the trimethylammonium and triethylammonium groups. Even more preferably, these groups represent from 5 to 20% by weight relative to the total weight of the modified guar gum.

[0367] According to the invention, guar gums modified with 2,3-epoxypropyl trimethylammonium chloride can be used.

[0368] These guar gums modified by cationic groups are products already known in themselves and are for example described in patents US 3,589,578 and US 4,0131,307. Such products are also sold in particular under the trade names JAGUAR C13 S, JAGUAR C 15, JAGUAR C 17 by the company RHODIA CHIMIE.

[0369] As modified carob gum, cationic carob gum containing hydroxypropyltrimmonium groups such as Catinal CLB 200 offered by the company TOHO can be used.

[0370] The starch molecules that can be used in the envelope of the packaging article according to the present invention are the same as those described above. above for the solid composition.

[0371] Preferably, starches of formulas (Vlla) or (Villa) will be used in particular; and preferentially starches modified with 2-chloroethylaminodipropionic acid, i.e. starches of formula (Vlla) or (Villa) in which R, R', R" and M represent a hydrogen atom and n is equal to 2. Preferably, the amphoteric starch is a starch chloroethylamido dipropionate.

[0372] Celluloses and cellulose derivatives can be anionic, cationic, amphoteric or non-ionic.

[0373] Among these derivatives, we distinguish cellulose ethers, cellulose esters and cellulose ether esters.

[0374] Among the cellulose esters, mention may be made of inorganic cellulose esters (nitrates, sulfates or phosphates of cellulose), organic cellulose esters (monoacetates, triacetates, amidopropionates, acetatebutyrates, acetatepropionates or acetatetrimellitates of cellulose) and mixed organic / inorganic cellulose esters such as cellulose acetatebutyratesulfates and acetatepropionate sulfates.

[0375] Among the cellulose ether esters, mention may be made of hydroxypropyl methylcellulose phthalates and ethylcellulose sulfates.

[0376] Examples of non-ionic cellulose ethers include alkylcelluloses such as methylcelluloses and ethylcelluloses (e.g., Ethocel Standard 100 Premium from DOW CHEMICAL); hydroxyalkylcelluloses such as hydroxymethylcelluloses, hydroxyethylcelluloses (e.g., Natrosol 250 HHR offered by AQUALON) and hydroxypropylcelluloses (e.g., Klucel EF from AQUALON); mixed hydroxyalkylalkylcelluloses such as hydroxypropylmethylcelluloses (e.g., Methocel E4M from DOW CHEMICAL), hydroxyethylmethylcelluloses, hydroxyethylethylcelluloses (e.g., Bermocoll E 481 FQ from AKZO NOBEL) and hydroxybutylmethylcelluloses.

[0377] Among the anionic cellulose ethers, mention may be made of carboxyalkylcelluloses and their salts. As an example, mention may be made of carboxymethylcelluloses, carboxymethylmethylcelluloses (for example Blanose 7M from the company AQUALON) and carboxymethylhydroxyethylcelluloses, as well as their sodium salts.

[0378] Among the cationic cellulose ethers, mention may be made of crosslinked or non-crosslinked quaternized hydroxyethylcelluloses. The quaternizing agent may in particular be diallyldimethylammonium chloride (for example Celquat L200 from NATIONAL STARCH). As another cationic cellulose ether, mention may be made of hydroxyethyl cellulose hydroxypropyltrimethylammonium (for example Ucare polymer JR 400 from AMERCHOL).

[0379] Among the associative polymers with sugar unit(s), mention may be made of celluloses or their derivatives, modified by groups comprising at least one fatty chain. such as alkyl, arylalkyl, alkylaryl groups or mixtures thereof where the alkyl groups are C8-C22; non-ionic alkylhydroxyethylcelluloses such as the products NATROSOL PLUS GRADE 330 CS and POLYSURF 67 (C16 alkyl) sold by the company AQUALON; quaternized (cationic) alkylhydroxyethylcelluloses such as the products QUATRISOFT LM 200, QUATRISOFT LM-X 529-18-A, QUATRISOFT LM-X 529-18-B (C12 alkyl) and QUATRISOFT LM-X 529-8 (C[8 alkyl) sold by the company AMERCHOL, the products CRODACEL QM, CRODACEL QL (C12 alkyl) and CRODACEL QS (C[8 alkyl) sold by the company CRODA and the product SOFTCAT SL 100 sold by the company AMERCHOL; non-ionic nonoxynylhydroxyethylcelluloses such as the product AMERCELL HM-1500 sold by the company AMERCHOL; non-ionic alkylcelluloses such as the product BERMOCOLL EHM 100 sold by the company BEROL NOBEL.

[0380] As polymers with sugar unit(s) derived from associative guar, mention may be made of hydroxypropylguars modified by a fatty chain such as the product ESAFLOR HM 22 (modified by a C22 alkyl chain) sold by the company LAMBERTI; the product MIRACARE XC 95-3 (modified by a C14 alkyl chain) and the product RE 205-146 (modified by a C20 alkyl chain) sold by RHODIA CHIMIE.

[0381] The water-soluble polymer(s) with sugar unit(s) that can be used to form the envelope of the packaging article are preferably chosen from guar gums, carob gums, xanthan gums, starches and celluloses, in their modified (derivatives) or unmodified form.

[0382] Preferably, said polymer(s) with sugar unit(s) are non-ionic.

[0383] The water-soluble polymers described above more particularly have a weight-average molecular weight (Mw) greater than 1,000,000 and preferably between 1,000,000 and 50,000,000. The molecular weight is determined by the RSV (Reduced Specified Viscocity) method as defined in "Principles of Polymer Chemistry" Cornell University Press, Ithaca, NY 1953 Chapter VII "Determination of molecular Weight" pp 266-316.

[0384] The water-soluble or liposoluble compound(s) capable of forming the envelope of the packaging article according to the invention may be in the form of fibers or film.

[0385] According to a first embodiment, the water-soluble or fat-soluble compound(s) are in the form of fibers. By “fiber” is meant any object whose length is greater than its cross-section. In other words, it is necessary to understand an object of length L and diameter D such that L is greater and preferably much greater (i.e. at least 3 times greater) than D, D being the diameter of the circle in which the cross-section of the fiber is inscribed. In particular, the ratio L / D (or form factor) is chosen in the range from 3.5 to 2500, preferably from 5 to 500, and better still from 5 to 150. The cross-section of a The fiber may be of any shape, round, serrated or grooved, or even bean-shaped, but also multilobed, in particular trilobed or pentalobed, X-shaped, ribbon-shaped, square, triangular, elliptical, or other. The fibers of the invention may be hollow or non-hollow.

[0386] According to this embodiment, the fibers can be spun, carded or twisted. Advantageously, the fibers used in the context of the present invention are spun. The average diameter of the fibers used according to the present invention, identical or different, is less than 500 μm. Advantageously, such a diameter is less than 200 μm, preferably less than 100 μm, or even less than 50 μm.

[0387] Mention may more particularly be made of water-soluble fibers which include fibers based on poly(vinyl alcohol) (= PVA), polysaccharide fibers such as glucomannans, starches, celluloses such as carboxymethylcelluloses, polyalginic acid fibers, polylactic acid fibers, and polyalkyleneoxide fibers, as well as mixtures thereof. More preferably, the water-soluble fiber(s) used in the invention are chosen from PVA-based fibers.

[0388] The fibers of the envelope are generally entangled. The term "envelope comprising water-soluble fibers" means an envelope which may be entirely made of water-soluble fibers which may comprise both water-soluble fibers and fibers insoluble in water at a temperature of less than or equal to 35°C, the soluble fibers having to be in greater quantity than the insoluble fibers. The fiber envelope must comprise at least 60% by weight of soluble fibers, preferably at least 70% and better still at least 80% by weight relative to the total weight of the fibers. It may thus comprise, for example, more than 95% by weight, or even more than 99% by weight and even 100% by weight of water-soluble fibers relative to the total weight of the fibers of the envelope.

[0389] When the envelope contains insoluble fibers, these may be made of any material usually used as insoluble fibers; for example, these may be fibers of silk, cotton, wool, linen, polyamide (Nylon®), polylactic acid, modified cellulose (rayon, viscose, rayon acetate), poly-p-phenylene terephthalamide, in particular Kevlar®, polyolefin, in particular polyethylene or polypropylene, glass, silica, aramid, carbon, in particular in graphite form, Teflon®, insoluble collagen, polyesters, polyvinyl chloride or vinylidene chloride, polyethylene terephthalate, fibers formed from a mixture of the compounds mentioned above, such as polyamide / polyester or viscose / polyester fibers.

[0390] Furthermore, when the envelope contains fibers, it can be woven or non-woven.

[0391] According to a first variant of the invention, the envelope can be woven. In the context of the present invention, a “woven” material results from an organized assembly of fibers, in particular of water-soluble polymeric fibers, and more particularly of an interweaving, in the same plane, of said fibers, arranged in the direction of the warp and of fibers arranged, perpendicular to the warp fibers, in the direction of the weft. The bond obtained between these warp and weft fibers is defined by an armor.

[0392] Such a woven material results from an operation aimed at assembling the fibers in an organized manner such as weaving itself, but can also result from knitting.

[0393] According to another variant of the invention, the envelope is non-woven.

[0394] For the purposes of the present invention, the term “non-woven” means a substrate comprising fibers, in particular water-soluble polymeric fibers, in which the individual fibers are arranged haphazardly in a web-like structure and which are neither woven nor knitted. The fibers of the nonwoven are generally bonded together, either by mechanical action (e.g. needling, air jet, water jet), or by thermal action, or by the addition of a binder.

[0395] Such a non-woven fabric is for example defined by the ISO 9092 standard as a web or sheet of directionally or randomly oriented fibres, bound by friction and / or cohesion and / or adhesion, excluding paper and products obtained by weaving, knitting, tufting or sewing incorporating binding yarns or filaments.

[0396] A nonwoven fabric differs from paper in the length of the fibers used. In paper, the fibers are shorter. However, there are nonwoven fabrics made from cellulose fibers that are manufactured wet and have short fibers like in paper. The difference between a nonwoven fabric and paper is generally the absence of hydrogen bonding between the fibers in a nonwoven fabric.

[0397] Very preferably, the fibers used in the context of the present invention are chosen from synthetic fibers such as PVA fibers. In particular, the envelope is non-woven, and preferably made of non-woven PVA fibers.

[0398] To produce the non-woven envelope of the packaging article, PVA fibers are preferably used which are soluble in water at a temperature of less than or equal to 35°C, such as, for example, the fibers sold by the Japanese company Kuraray under the name KURALON K-II, and particularly the WN2 grade which is soluble from 20°C. These fibers are described in document EP-A-636716 which teaches the manufacture of PVA fibers which are soluble in water at temperatures not exceeding 100°C, by spinning and stretching the polyvinyl alcohol polymer in the dry or wet state in the presence of solvents involved in the solubilization and solidification of the fiber. The fiber thus obtained can lead to the production of woven or non-woven substrates.

[0399] These fibers can also be prepared from a spinning solution, by dissolving a water-soluble PVA-based polymer in a first organic solvent, spinning the solution in a second organic solvent to obtain solidified filaments and wet drawing the filaments from which the first solvent is removed and then dried and subjected to a heat treatment. The cross-section of these fibers may be substantially circular. These fibers have a tensile strength of at least 2.7 g / dtex (3 g / d). Application EP-A-0 636 716 describes such water-soluble PVA-based fibers and their manufacturing process.For example, the fibers can also be formed by extrusion and deposited on a conveyor to form a fiber web which is then consolidated by a conventional fiber bonding technique, such as for example needling, hot bonding, calendering or air-through bonding, a technique in which the water-soluble web passes through a tunnel where hot air is blown, or hydrobonding aimed at bonding the fibers under the action of fine jets of water under very high pressure, which cannot be applied to fibers whose dissolution temperature is too low.

[0400] As we have seen previously, the invention is not limited to the use of PVA, and it is also possible to use fibers made from other water-soluble materials provided that these materials dissolve in water having the desired temperature, for example polysaccharide fibers marketed under the name LYSORB by the company LYS AC TECHNOLOGIES, INC or other fibers based on polysaccharide polymers such as glucomannans or starch.

[0401] The casing may comprise a mixture of different fibers soluble in water at different temperatures (up to 35°C).

[0402] The fibers may be composite, and they may comprise, for example, a core and a sheath which are not of the same nature, for example formed from different grades of PVA.

[0403] According to a particular embodiment of the invention, the envelope is a non-woven fabric, comprising water-soluble fibers, alone or mixed with insoluble fibers as indicated above, with at most 40% by weight of insoluble fibers relative to the total weight of the fibers constituting the sheet. Preferably, the non-woven fabric consists essentially of water-soluble fibers, that is to say that it does not contain insoluble fibers.

[0404] According to another embodiment of the invention, the envelope of the packaging article may consist of one or more films, each of which comprises one or more water-soluble and / or liposoluble compounds, in particular as defined above. When the envelope consists of several films, said films may be assembled, for example glued together, in order to form only one unitary film.

[0405] The thickness of the “overall” film (i.e. the thickness of the single film when the envelope contains only one or of the unitary film when the envelope contains several films) is advantageously between 10 and 1000 microns, preferably between 10 and 800 microns, and more preferably between 15-500 microns.

[0406] Film is understood to mean in particular a continuous layer preferably formed from one or more water-soluble and / or liposoluble compounds as defined above, in particular polymer(s).

[0407] The main industrial methods for producing polymer films are extrusion of a molten polymer, casting a solution of a polymer onto a polished metal surface (in some cases, the polymer solution is introduced into a precipitation tank), casting a dispersion of the polymer onto a polished surface and calendering.

[0408] The films usable according to the present invention can be chosen from multilayer film-film, film-paper (coating) and film-coating.

[0409] When applied by spraying, brushing or various industrial processes, surface coatings undergo what is known as film formation, and in particular film-coating. In most film-forming processes, a relatively low-viscosity liquid coating is applied to a solid substrate and cured into a solid, adherent film based on a high-molecular-weight polymer having the properties desired by the user.

[0410] The films which can be used according to the present invention are in particular PVA films which can be manufactured using any industrial production method, such as a method of casting a PVA-based polymer solution, an extrusion method in the presence or absence of water, a dry extrusion molding method or a biaxial orientation method.

[0411] The packaging article, as well as the envelope, may have any shape suitable for the intended use, for example a rectangular, round or oval shape. Preferably, it has a rounded geometry, for example in the form of a sphere, disc, or oval, or else square or parallelepiped, preferably with rounded corners. The envelope preferably has dimensions allowing it to be grasped between at least two fingers. Thus, it may have, for example, an ovoid shape of approximately 2 to 10 cm long and approximately 0.5 to 4 cm wide, or a circular disc shape of approximately 2 to 10 cm in diameter, or a square shape of approximately 2 to 15 cm on each side, or a rectangle shape of approximately 2 to 25 cm in length, it being understood that it may have any other shape and dimension suitable for the intended use.

[0412] Preferably, the envelope may be round in shape with an internal diameter ranging from 3 to 7 cm, more preferably from 4 to 5 cm; to which may be added the dimension of the edges (sealed part) which may range from 1 to 5 mm, better still from 2 to 4 mm; and a height ranging from 2 to 7 mm, preferably from 3 to 5 mm.

[0413] The envelope can also be square or rectangular in shape with a length preferably ranging from 2 to 6 cm, more preferably from 3 to 5 cm, and a width preferably ranging from 2 to 5 cm, more preferably 2.5 to 4 cm; to which can be added the dimension of the edges (sealed part) which can preferably range from 1 to 5 mm, and more preferably from 2 to 4 mm.

[0414] Advantageously, the envelope has a low thickness, and can be made up of several layers of different materials. Preferably the thickness of the envelope ranges from 3 to 99.9% of its other dimensions. The envelope is thus substantially flat, with thin edges.

[0415] The surface delimiting the cavity(ies) has an area advantageously less than 625 cm2, preferably between 0.025 cm2 and 400 cm2, more preferably between 1 and 200 cm2, better still between 2 and 50 cm2, and better still between 4 and 25 cm2, in order to have optimized compaction of the composition. It has been observed that when the surface of the article is in the above ranges, the compaction of the solid composition into powder is lower and the transformation of the powder into a fluid composition in the hands is more easily done, without the formation of agglomerates.

[0416] Preferably, the height of the envelope is greater than or equal to 2 mm, more preferably ranging from 2 to 10 mm, and better still from 3 to 7 mm.

[0417] Preferably, the film(s) used in the context of the present invention are chosen from synthetic films, such as PVA films, as well as their mixtures.

[0418] Preferably, the envelope is made up of several layers, for example, 2 or 3 layers, of films each made, preferably, of different materials. Advantageously, at least one of these films is a film comprising or consisting of PVA.

[0419] Preferably, the film(s) are sealed to form one or more cavities that will comprise the solid composition of the invention and prevent it from escaping.

[0420] Advantageously, the envelope represents from 0.5 to 20% by weight, preferably from 1 to 15% by weight, more preferably from 2 to 10% by weight, better still from 4 to 10% by weight, and better still from 4 to 8% by weight, relative to the total weight of the packaging article.

[0421] Advantageously, the solid composition as defined below represents from 80 to 99.5% by weight, preferably from 85 to 99% by weight, more preferably from 90 to 98% by weight, better still from 90 to 96% by weight, and better still from 92 to 96% by weight, relative to the total weight of the packaging article.

[0422] The weight ratio between the total weight of the solid composition of the invention and the total weight of the envelope advantageously ranges from 80 / 20 to 99 / 1, preferably from 85 / 15 to 98 / 2, and more preferably from 90 / 10 to 97 / 3.

[0423] Advantageously, the packaging article comprises from 1 to 8g, preferably from 2 to 6g of solid composition; and from 0.1 to 1g, preferably from 0.2 to 0.7g of envelope.

[0424] The present invention further relates to a method for the cosmetic treatment of keratin fibers, in particular human keratin fibers such as hair, comprising a step of implementing a packaging article as defined above, preferably, said cosmetic treatment method comprises the following steps: (i) mixing the packaging article in a composition capable of dissolving, in whole or in part, the envelope of said packaging article, ii) apply the composition obtained in step i) to the keratin fibers, iii) optionally leave to stand, iv) rinsing said keratin fibers, and v) optionally drying said keratin fibers.

[0425] It is understood that the composition capable of solubilizing the envelope depends on the nature of the envelope. In other words, the composition capable of solubilizing the envelope is water or an aqueous composition, when the packaging article contains mainly or only a hydrophilic envelope. And, the composition capable of solubilizing the envelope is an organic anhydrous composition or an aqueous composition comprising at least one liquid fatty substance or at least one organic solvent different from the liquid fatty substances such as lower monoalcohols, for example ethanol, or such as polyols, for example propylene glycol or glycerin, when the packaging article contains mainly or only a lipophilic envelope.

[0426] Thus, the aqueous composition may simply be water. The aqueous composition may optionally comprise at least one polar solvent. Among the polar solvents that can be used in this composition, mention may be made of organic compounds that are liquid at room temperature (25°C) and at least partially miscible with water.

[0427] By way of example, mention may be made more particularly of alcohols such as ethyl alcohol, isopropyl alcohol, aromatic alcohols such as benzyl alcohol, and phenylethyl alcohol, or polyols or polyol ethers such as, for example, monomethyl, monoethyl and monobutyl ethers of ethylene glycol, propylene glycol or its ethers such as, for example, monomethyl ether of propylene glycol, butylene glycol, dipropylene glycol as well as alkyl ethers of diethylene glycol such as, for example, monoethyl ether or monobutyl ether of diethylene glycol.

[0428] More particularly, if one or more solvents are present, their respective content in the aqueous composition varies from 0.5 to 20% by weight, and preferably from 2 to 10% by weight, relative to the weight of said aqueous composition.

[0429] The dilution ratio (expressed by weight) between one or more articles of condi- operation, as defined above, and the composition capable of solubilizing the packaging article(s) is preferably between 10 / 90 and 90 / 10, and more preferably between 10 / 90 and 50 / 50. Better still, this dilution ratio is 20 / 80.

[0430] In particular, the composition obtained at the end of the mixing (step i) of the process) can be applied to dry or wet keratin fibers. It is advantageously left to apply on the keratin fibers for a period ranging from 1 to 15 minutes, preferably from 2 to 10 minutes.

[0431] Then, the keratin fibers are rinsed with water. They may optionally be washed with shampoo, followed by rinsing with water, before being dried or left to dry.

[0432] The present invention further relates to the use of a packaging article as defined above for the cosmetic treatment, more particularly the care, of keratin fibers, in particular human keratin fibers such as hair.

[0433] The following examples serve to illustrate the invention without, however, being limiting in nature.

[0434] Examples In the following examples, all quantities are given, unless otherwise indicated, as a percentage by mass of active ingredient relative to the total weight of the composition.

[0435] Example 1 A composition according to the invention was prepared from the ingredients indicated in Table 1 below:

[0436] [Tables 1] Composition 1 Behentrimonium Chloride 2.4 Corn Starch (Zea mays (corn) starch) 43.3 Distarch Phosphate 10 Citric Acid 14.8 Soybean Oil 1 Isopropyl Myristate 2 Sunflower Oil 0.5 Shea Butter (Butyrospermium Parkii Butter) 3 Coco Caprylate / Caprate 0.5 Cocamidopropyl Betaine 0.2 Sodium Chloride 0.5 Magnesium Carbonate 7 Isopropyl Alcohol 0.5 Hydroxypropyl Guar Hydroxypropyltrimonium Chloride 0.8 Water qs 100 Glycerin 3 Fragrance qs

[0437] The powdered ingredients (corn starch, starch phosphate, citric acid, guar) were mixed under agitation in a tank. The liquid ingredients (except the perfume) were heated to 40°C. These ingredients were added as a binder to the tank by spraying and mixed. Finally, the perfume was added by spraying and mixed. The whole was then dried in an oven at 45°C for a period of 20 hours. After cooling to room temperature, the mixture was ground using a grinder to obtain a powder. A fairly loose powder formula was obtained (with an angle of repose of 30°) and a density of 0.48 and water activity 0.628 (after drying). Particle size before grinding X50%=286pm and after grinding X50%=216pm.

[0438] In accordance with the present invention, the angle of repose represents the characteristic angle of a powder pile obtained by mechanically pouring the powder from a funnel and is an indication of the flowability of a powder. As an indication, a clogging powder having a difficult flow has an angle of repose greater than 55°.

[0439] The composition thus prepared was packaged in powder form in a water-soluble sachet based on PVA. The packaging item thus obtained can then be used as a care composition: it is placed in the palm of the hand, water is added to dissolve it and form a cream, then it is applied to the hair, preferably previously moistened.

[0440] The composition spreads easily on the hair, promotes its softening and improves its detangling.

[0441] Example 2 Compositions A (according to the invention) and B (comparative) were prepared from the ingredients indicated in Table 2 below:

[0442] [Tables2] Composition A (invention) Composition B (comparative) Soybean oil 1.0 1.0 Isopropyl myristate 2.0 2.0 Sunflower oil 0.5 0.5 Coco caprylate / caprate 0.5 0.5 Water 7 7 Behentrimonium chloride 2.4 2.4 Cocamidopropyl betaine 0.2 0.2 Isopropyl alcohol 0.5 0.5 Sodium chloride 0.5 0.5 Perfume qs qs Distarch phosphate 2.5 2.5 Corn starch (Zea mays (corn) starch) Qs 100 qs 100 Magnesium carbonate 7 7 Citric acid 14.8 1.25 PH 4.12 9.49

[0443] The powdered ingredients (corn starch, starch phosphate, citric acid, guar) were mixed under agitation in a tank. The liquid ingredients (except the perfume) were heated to a temperature of 40°C. These ingredients were added as a binder to the tank by spraying and mixed. At the end, the perfume was added by spraying and mixture. The whole is then dried in an oven at a temperature of 45°C for a period of 20 hours. After cooling to room temperature, the mixture is ground using a grinder to obtain a powder.

[0444] Compositions A and B were each mixed with 1.5 times (by weight) water in order to evaluate the disintegration. Very good disintegration was observed for composition A (composition obtained homogeneous), whereas composition B led to the presence of lumps.

[0445] Each of compositions A and B was applied directly to strands of moderately sensitized hair (SA20 strands) weighing 2.7 g and moistened. The amount deposited was 0.35 g per strand. The strand was gently kneaded between the fingers along its entire length.

[0446] After a setting time of 2 minutes, the strands are rinsed.

[0447] A panel of people evaluated the cosmetic properties conferred by compositions A and B.

[0448] The cosmetic properties in terms of detangling, smoothing and suppleness were evaluated sensorily, blindly, on damp hair.

[0449] Each of the 6 experts decided on the strand that was easiest to untangle, had the smoothest feel and the best flexibility.

[0450] To assess detangling, the expert evaluates how easily a fine comb can be passed through the hair, sliding it from root to tip.

[0451] The assessment of smoothness is tactile. The expert grasps the strand between the thumb and index finger and slides his fingers along the strand from the top to the tips; he assesses whether the hair has any roughness and whether it catches the fingers.

[0452] The assessment of flexibility is tactile. The expert grasps the hair with both hands and tries to bend it.

[0453] The more easily the hair can be bent and curved, the more malleable it is, the better the flexibility.

[0454] The locks treated with composition A according to the invention exhibit easier detangling, a smoother feel and improved flexibility compared to the locks treated with comparative composition B.

Claims

Claims

1. Solid composition comprising: (i) one or more cationic surfactants, (ii) one or more starches, iii) at least 10% by weight of one or more C 16 carboxylic acids, relative to the total weight of the composition.

2. Solid composition according to claim 1, characterized in that the cationic surfactant(s) i) is or are chosen from: quaternary ammonium salts of formula (Ia): in which: the groups R8 to Ru, which may be identical or different, represent a linear or branched aliphatic group, comprising from 1 to 30 carbon atoms, or an aromatic group such as aryl or alkylaryl, at least one of the groups R8 to Ru comprising from 8 to 30 carbon atoms, preferably from 12 to 24 carbon atoms; the aliphatic groups may comprise heteroatoms such as in particular oxygen, nitrogen, sulfur and halogens; and X is an anion; the quaternary ammonium salts of imidazoline of formula (IIa): AI x - v / X \___________ / R]4 | in which: Rn represents an alkenyl or alkyl group containing from 8 to 30 carbon atoms, Rn represents a hydrogen atom, a C1-C4 alkyl group or an alkenyl or alkyl group containing 8 to 30 carbon atoms, Ru represents a C1-C4 alkyl group, Ris represents a hydrogen atom or a C1-C4 alkyl group, X is an anion; the quaternary di- or triammonium salts of formula (Ilia): fw | R — N—H—■R... | 2X" „git . " | । ^|||^ %3 | in which: - Rie denotes an alkyl group containing from 16 to 30 carbon atoms, optionally hydroxylated and / or optionally interrupted by one or more oxygen atoms, - Rn denotes hydrogen, an alkyl group containing 1 to 4 carbon atoms or a group -(CH2)3-N+(Ri6a)(Ri7a)(Ri8a), Ri6a, Rna, Risa, identical or different denoting hydrogen or an alkyl group containing 1 to 4 carbon atoms, - R18, R19, R2o and R2B, identical or different, denote hydrogen or an alkyl group containing 1 to 4 carbon atoms, and - X is an anion; quaternary ammonium salts containing one or more ester functions of the following formula (IVa): (CJKOh--FU O | ' ~ 1¾—$—(O0(1 -Q}"~R2- in which: - R22 is chosen from C1-C6 alkyl groups and C1-C6 hydroxyalkyl or dihydroxyalkyl groups, - R23 is chosen from the group R26-C(=O)-; the linear or branched, saturated or unsaturated CrC22 hydrocarbon groups R27; and the hydrogen atom, - R25 is chosen from the group R28-C(=O)-; the linear or branched, saturated or unsaturated C1-C6 hydrocarbon groups R29; and the hydrogen atom, - R24 R26 and R28, identical or different, are chosen from C7-C2i hydrocarbon groups, linear or branched, saturated or unsaturated, - r, s and t, identical or different, are integers from 2 to 6, - rl and tl, identical or different, are 0 or 1, - y is an integer ranging from 1 to 10, - x and z, identical or different, are integers ranging from 0 to 10, - X is an anion, it being understood that r2 + rl = 2r and tl + t2 = 2t, and that the sum x + y + z is from 1 to 15, provided that when x = 0 then R23 denotes R27 and that when z = 0 then R25 denotes R29 the amidoamines comprising at least one C6-C30 hydrocarbon chain, preferably corresponding to the following formula (Va): RCONHR”N(R')2(Va) in which: - R represents a linear or branched, saturated or unsaturated and substituted or unsubstituted monovalent hydrocarbon radical having from 5 to 29 carbon atoms, preferably from 7 to 23 carbon atoms, and in particular a linear or branched C5-C29, preferably C7-C23 alkyl radical, or a linear or branched C5-C29, preferably C7-C23 alkenyl radical; - R” represents a divalent hydrocarbon radical having less than 6 carbon atoms, preferably 2 to 4 carbon atoms, better still, 3 carbon atoms;and - R', identical or different, represent a monovalent hydrocarbon radical having less than 6 carbon atoms, preferably from 1 to 4 carbon atoms, linear or branched, saturated or unsaturated and substituted or unsubstituted, preferably a methyl radical.;

3. Solid composition according to claim 1 or 2, characterized in that the cationic surfactant(s) i) is or are chosen from cetyltrimethylammonium, behenyltrimethylammonium, dipalmitoylethylhydroxyethylmethylammonium salts, more particularly behenyltrimethylammonium chloride or methosulfate, cetyltrimethylammonium chloride or methosulfate, dipalmitoylethylhydroxyethylmethylammonium chloride or methosulfate, oleamidopropyl dimethylamine, stearamidopropyl dimethylamine, behenamidopropyl dimethylamine, brassicamidopropyl dimethylamine, and mixtures thereof.

4. Solid composition according to any one of the preceding claims, characterized in that the total content of the cationic surfactant(s) i) preferably ranges from 0.01 to 15% by weight, preferably from 0.1 to 10% by weight, better still from 0.5 to 8% by weight, and better still from 1 to 5% by weight, relative to the total weight of the composition.

5. Solid composition according to any one of the preceding claims, characterized in that the starch(es) ii) is or are chosen among corn starches, potato starches, rice starches and modified starches, in particular phosphated starches, such as distarch phosphates, and mixtures thereof.

6. Solid composition according to any one of the preceding claims, characterized in that it comprises at least two starches, preferably at least one unmodified starch such as a corn starch, a rice starch or a potato starch, and at least one modified starch, more particularly phosphated.

7. Solid composition according to any one of the preceding claims, characterized in that the total content of the starch(es) ii) ranges from 10 to 90% by weight, preferably from 20 to 85% by weight, better still from 30 to 80% by weight, and better still from 40 to 75% by weight relative to the total weight of the composition.

8. Solid composition according to any one of the preceding claims, characterized in that the C 16 carboxylic acid or acids correspond(s) to the following formula (Xa): roi ch (Xa) "C HO "O in which: A represents a monovalent group when n is 0, or polyvalent when n is greater than or equal to 1; A represents a saturated or unsaturated, cyclic or non-cyclic, aromatic or non-aromatic hydrocarbon group, comprising from 1 to 6 carbon atoms, optionally interrupted by one or more heteroatoms, and / or substituted by one or more hydroxy and / or amino groups; preferably A represents a monovalent C 1-C 6 alkyl or phenyl group, or a polyvalent C 1-C 6 alkylene or phenylene group optionally substituted by one or more hydroxy groups; n represents an integer ranging from 0 to 10, preferably from 0 to 5, better still from 0 to 2.

9. Solid composition according to any one of the preceding claims, characterized in that the C i_6 carboxylic acid or acids is or are chosen from salicylic acid, citric acid, glutaric acid and lactic acid.

10. Solid composition according to any one of the preceding claims, characterized in that it comprises a total content of the or of C1-C6 carboxylic acids (iü) ranges from 10 to 30% by weight, preferably from 11 to 25% by weight, and better still from 12 to 20% by weight relative to the total weight of the composition.

11. Solid composition according to any one of the preceding claims, characterized in that it further comprises one or more fatty substances, preferably chosen from butters, vegetable oils, liquid fatty esters of fatty acid and / or fatty alcohol, and mixtures thereof, better still from shea butter, sunflower, corn, soybean, pumpkin, grape seed, sesame, hazelnut, apricot, macadamia, arara, sunflower, castor, avocado oils, isopropyl myristate, coco caprylate / caprate, amino silicones such as amodimethicones and bis-amino silicones and mixtures thereof.

12. Solid composition according to any one of the preceding claims, characterized in that it further comprises one or more amphoteric surfactants, preferably chosen from alkyl(C8-C20)betaines, alkyl(C8-C20)amidoalkyl(C3-C8)betaines and mixtures thereof.

13. Solid composition according to any one of the preceding claims, characterized in that it further comprises one or more cationic polymers, preferably chosen from cationic polysaccharides and their mixtures.

14. Solid composition according to any one of the preceding claims, characterized in that it further comprises one or more polyols, preferably chosen from those of the following formula (XII): K'y R' 3 R\---C---- [a]--c---^4 ù- । *- J TH । OH OH (XII) formula (XII) in which: - R'i, R'2, R'3 and R'4, identical or different, independently denote a hydrogen atom, a linear or branched C1 to C6 alkyl radical or a mono or polyhydroxyalkylated C1 to C6 radical, - A denotes a saturated or unsaturated, linear or branched alkyl radical containing from 1 to 18 carbon atoms, this radical comprises from 0 to 9 oxygen atoms, but no hydroxyl group, and - m denotes 0 or 1.

15. A process for the cosmetic treatment of keratin fibers, in particular human keratin fibers such as hair, comprising the application to said keratin fibers of a solid composition as defined in any one of the preceding claims; the solid composition being applied directly to said keratin fibers or after having been previously moistened with water.

16. Packaging article comprising: - an envelope defining at least one cavity, the envelope comprising one or more water-soluble and / or fat-soluble compounds; - a solid composition as defined in any one of claims 1 to 14; it being understood that the solid composition is located in one of the cavities defined by the envelope.

17. A process for the cosmetic treatment of keratin fibers, in particular human keratin fibers such as hair, comprising a step of implementing a conditioning article as defined in claim 16, preferably, said cosmetic treatment process comprises the following steps: i) mixing the conditioning article in a composition capable of solubilizing, in whole or in part, the envelope of said conditioning article, ii) applying the composition obtained in step i) to the keratin fibers, iii) optionally leaving to stand, iv) rinsing said keratin fibers, and v) optionally drying said keratin fibers.

18. Use of a solid composition as defined in any one of claims 1 to 14 or of a packaging article as defined in claim 16 for the care of keratin fibers, in particular human keratin fibers such as hair.