COMPOSITION COMPRISING A SILICONE EMULSION, A PARTICULAR (METH)ACRYLAMIDE POLYMER, A CATIONIC POLYSACCHARIDE AND AN ALKYLDIALLYLAMINE OR DIALKYLDIALLYLAMMONIUM POLYMER

The composition addresses the degradation issues of detergent compositions by enhancing silicone deposition and improving hair condition and manageability through a specific blend of silicone emulsion, cationic polysaccharides, and polymers, achieving superior cosmetic properties and cleanliness.

FR3119768B1Active Publication Date: 2025-07-18LOREAL SA
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Patent Information

Application Number
FR2021001374
Authority / Receiving Office
FR · FR
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-02-12
Publication Date
2025-07-18
Estimated Expiration
2041-02-12

AI Technical Summary

Technical Problem

Existing detergent compositions for keratinous fibers, particularly hair, effectively remove dirt but cause degradation due to their aggressive nature, leading to insufficient silicone deposition and poor cosmetic properties such as suppleness, softness, and manageability, especially for damaged hair.

Method used

A composition comprising an oil-in-water silicone emulsion with specific silicone blends, cationic polysaccharides, cationic or quaternized acrylamide/methacrylamide polymers, and alkyldiallylamine/dialkyldiallylammonium polymers, along with optional anionic, amphoteric, or zwitterionic surfactants, enhances silicone deposition and improves hair condition and manageability.

Benefits of technology

The composition provides superior silicone coating, improved detangling, reduced frizz, enhanced combability, and long-lasting cosmetic benefits with better cleanliness and lightness, while maintaining good detergent power.

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Abstract

COMPOSITION COMPRISING A SILICONE EMULSION, A PARTICULAR (METH)ACRYLAMIDE POLYMER, A CATIONIC POLYSACCHARIDE AND AN ALKYLDIALLYLAMINE OR DIALKYLDIALLYLAMMONIUM POLYMER The present invention relates to a composition for treating keratinous fibers, and in particular human keratinous fibers such as hair, which comprises a specific oil-in-water silicone emulsion, one or more particular (meth)acrylamide polymers, one or more cationic polysaccharides, and one or more alkyldiallylamine or dialkyldiallylammonium polymers. The invention also relates to a method for treating keratinous fibers, preferably for washing and / or conditioning the keratinous fibers, comprising applying the composition according to the invention to the keratinous fibers. Figure for abstract: NONE
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Description

Title of the invention: COMPOSITION COMPRISING A SILICONE EMULSION, A PARTICULAR POLYMER OF (METH)ACRYLAMIDE, A CATIONIC POLYSACCHARIDE AND A POLYMER OF ALKYLDIALLYLAMINE OR DIAL- KYLDIALLYL AMMONIUM

[0001] The present invention relates to a composition for the treatment of keratinous fibers, and in particular human keratinous fibers such as hair, which comprises a specific oil-in-water silicone emulsion, one or more particular (meth)acrylamide polymers, one or more cationic polysaccharides, and one or more alkyldiallylamine or dialkyldiallylammonium polymers. The composition may further contain one or more surfactants, and preferably one or more anionic surfactants, and / or one or more amphoteric or zwitterionic surfactants.

[0002] The invention also relates to a method for treating keratinous fibers, preferably for washing and / or conditioning the keratinous fibers, comprising the application to the keratinous fibers of the composition according to the invention.

[0003] Finally, the invention relates to the use of such a composition for washing and / or conditioning keratinous fibers, preferably hair.

[0004] It is common to use detergent cosmetic compositions such as shampoos and shower gels, essentially based on surfactants, for washing keratinous materials, in particular hair and skin. These compositions are applied to the keratinous materials, which are preferably wet, and the foam generated by massaging or rubbing with the hands or a washcloth makes it possible, after rinsing with water, to remove the various types of dirt initially present on the hair or skin.

[0005] These compositions generally contain a significant quantity of “detergent” surfactants, which, in order to be able to formulate cosmetic compositions with good washing power, must above all give them good foaming power.

[0006] The surfactants useful for this purpose are generally of the anionic, non-ionic and / or amphoteric type, and in particular of the anionic type.

[0007] These compositions generally have good washing power, but the intrinsic cosmetic properties associated with them nevertheless remain quite weak, in particular due to the fact that the relatively aggressive nature of such a cleaning treatment can, in the long term, lead to more or less pronounced degradation of the fiber. pillar, this degradation being notably associated with the progressive elimination of lipids or proteins contained in or on the surface of this fiber.

[0008] Thus, in order to improve the cosmetic properties of the aforementioned detergent compositions, and more particularly those which are intended to be applied to sensitized hair (i.e. damaged or weakened, in particular under the chemical action of atmospheric agents and / or hair treatments such as permanent waving, dyeing or bleaching), it is now common to introduce into these compositions additional cosmetic agents called "conditioners". These conditioners are mainly intended to repair or limit the harmful or undesirable effects induced by the various treatments or attacks to which the hair fibers are subjected more or less repeatedly. They can, of course, also improve the cosmetic behavior of natural hair.

[0009] Among the conditioners most used to date in shampoos are cationic polymers, silicones and / or silicone derivatives, which give washed, dry or wet hair ease of detangling, flexibility and softness significantly superior to those obtainable with the corresponding cleansing compositions from which they are absent.

[0010] It is known in particular that use is made of a mixture of silicone and cationic polymer. However, the compositions which contain them still have numerous drawbacks, such as for example leading to an insufficient deposition of silicones on the hair, which considerably affects their cosmetic performance.

[0011] There is therefore a real need to provide compositions, such as compositions for washing and / or conditioning keratinous fibers, and in particular human keratinous fibers, which make it possible to overcome the drawbacks described above, that is to say which effectively remove dirt and excess sebum and improve the cosmetic properties of said fibers, such as suppleness, softness, manageability and detangling. These cosmetic properties can also be long-lasting.

[0012] In particular, the composition must provide a satisfactory silicone deposition on the keratinous fibers, which results in a better soft coating of the fibers, and must improve the detangling of the hair.

[0013] These objectives are achieved with the present invention, the subject of which is a composition comprising:

[0014] a) an oil-in-water emulsion having a particle size D50 of less than 350 nm and comprising:

[0015] - a silicone blend comprising (i) a trial-terminated dialkylpolysiloxane alkylsilyl having a viscosity of 40,000 to less than 100,000 mPa.s at 25°C and (ii) a amino silicone having a viscosity of 1,000 to 15,000 mPa.s at 25°C and an amine number of 2 to 10 mg of KOH per gram of amino silicone,

[0016] - a mixture of emulsifiers comprising one or more non-ionic emulsifiers, wherein the emulsifier mixture has an HLB value of 10 to 16, and

[0017] - water;

[0018] b) one or more polymers comprising one or more cationic or quaternized acrylamide and / or methacrylamide units;

[0019] c) one or more cationic polysaccharides;

[0020] d) one or more polymers containing alkyldiallylamine and / or dialkyl-diallylammonium units;

[0021] e) optionally one or more anionic surfactants; and

[0022] f) optionally one or more amphoteric or zwitterionic surfactants.

[0023] This composition, when applied to keratinous fibers, in particular human keratinous fibers such as hair and more particularly sensitized hair, leads to an improvement in the condition and quality of the hair, in terms of feel (e.g., soft feel, supple feel, conditioned feel) and manageability of the hair: the hair has no or less frizz, has good combability / shapeability, less flyaway hair and desirable volume. Combing and detangling of the hair is easier.

[0024] Furthermore, the composition according to the invention makes it possible to significantly improve the deposition of silicone on the keratin fibers. This makes it possible to obtain a superior soft coating on the fibers, from root to tip, with less dry tips.

[0025] Even more surprisingly, it has been discovered that the deposition of silicone on the hair is significantly higher with the composition according to the invention compared to a similar composition which does not comprise the particular association of cationic polymers disclosed herein.

[0026] The composition according to the invention has good detergent power.

[0027] When the composition contains foaming surfactants, it generates, when massaged onto a wet substrate, a rich, creamy foam, which spreads easily over the fibers.

[0028] It has also been noted that the hair treated with the composition according to the invention is particularly clean and light (no accumulation).

[0029] The observed properties of the composition according to the invention are particularly durable.

[0030] The present invention also relates to a treatment process, in particular for washing and / or conditioning, keratinous fibers, preferably human keratinous fibers such as hair, comprising the application to the keratinous fibers of this composition.

[0031] Another object of the invention is the use of the composition according to the invention for washing and / or conditioning keratinous fibers, preferably hair.

[0032] Other subjects, characteristics, aspects and advantages of the invention will appear even more clearly on reading the description and the example which follows.

[0033] In this description, and unless otherwise indicated:

[0034] - the expression “at least one” is equivalent to the expression “one or more” and can be replaced by this one;

[0035] - the expression “between” is equivalent to the expression “ranging from” and can be replaced by this one, and implies that the limits are included;

[0036] - according to the present application, the term “keratinous fibers” preferably designates human keratinous fibers, and more preferably hair;

[0037] E oil in water emulsion

[0038] The composition according to the present invention comprises an oil-in-water (or silicone-in-water) emulsion having a particle size D50 of less than 350 nm and containing:

[0039] - a silicone blend comprising (i) a trial-terminated dialkylpolysiloxane alkylsilyl having a viscosity of 40,000 to less than 100,000 mPa.s at 25°C and (ii) an amino silicone having a viscosity of 1,000 to 15,000 mPa.s at 25°C and an amine number of 2 to 10 mg of KOH per gram of amino silicone,

[0040] - a mixture of emulsifiers comprising one or more non-ionic emulsifiers, wherein the emulsifier mixture has an HLB value of 10 to 16, and

[0041] - water.

[0042] In the oil-in-water emulsion, or silicone-in-water emulsion, one liquid phase (the dispersed phase) is dispersed in the other liquid phase (the continuous phase); in the present invention, the silicone mixture, or silicone phase, is dispersed in the continuous aqueous phase.

[0043] (i) trialkylsilyl terminated dialkylpolysiloxanes

[0044] The silicone mixture comprises a trialkylsilyl-terminated dialkylpolysiloxane, preferably of formula (IX):

[0045] R'3SiO(R'2SiO)pSiR'3

[0046] in which:

[0047] - R', identical or different, is a monovalent hydrocarbon radical having from 1 to 18 carbon atoms, preferably from 1 to 6 carbon atoms, more preferably from 1 to 3 carbon atoms, more preferably methyl, and

[0048] - p is an integer between 500 and 2,000, preferably between 1,000 and 2,000.

[0049] The trialkylsilyl-terminated (or end-blocked or a,co-positioned) dialkylpolysiloxanes according to the invention have a viscosity of 40,000 to less than 100,000 mPa.s (100,000 excluded) at 25°C, preferably a viscosity of 40,000 to 70,000 mPa.s at 25°C, more preferably a viscosity of 51,000 to 70,000 mPa.s at 25°C.

[0050] The trialkylsilyl-terminated dialkylpolysiloxanes according to the invention are preferably linear but may contain, in addition to the R'2SiO2 / 2 units (D units) of formula (IX), R'2SiO3 / 2 units (T units) and / or R'2SiO4 / 2 units (Q units), in which R'2, identical or different, is a monovalent hydrocarbon radical having from 1 to 18 carbon atoms.

[0051] Preferably, the R', which may be identical or different, are alkyl radicals, preferably Cr-Ci8 alkyl radicals, such as methyl, ethyl, n-propyl, isopropyl, 1-n-butyl, 2-n-butyl, isobutyl, tert-butyl, n-pentyl, isopentyl, neopentyl and tert-pentyl radicals, hexyl radicals, such as the n-hexyl radical, heptyl radicals such as the n-heptyl radical, octyl radicals, such as the n-octyl radical, and isooctyl radicals, such as the 2,2,4-trimethylpentyl radical, nonyl radicals, such as the n-nonyl radicals, decyl radicals, such as the n-decyl radical, dodecyl radicals, such as the n-dodecyl radical, and octadecyl radicals, such as the n-octadecyl radical; alkenyl radicals such as the vinyl and allyl radicals; cycloalkyl radicals such as the cyclopentyl, cyclohexyl, cycloheptyl and methyl radicals; aryl radicals such as the phenyl, naphthyl, anthryl and phenanthryl radicals;alkaryl radicals such as o-, m- and p-tolyl radicals, xylyl radicals and ethylphenyl radicals; and aralkyl radicals such as the benzyl radical and the a- and b-phenylethyl radicals. The methyl radical is most often preferred. ;

[0052] Preferably, the trialkylsilyl-terminated dialkylpolysiloxanes are trimethylsilyl-terminated PDMS (polydimethylsiloxanes or dimethicones).

[0053] (ii) amino silicones

[0054] The silicone mixture comprises an amino silicone which is preferably of formula (X):

[0055] XR2Si(OSiAR)n(OSiR2)mOSiR2X

[0056] in which:

[0057] - R, identical or different, is a monovalent hydrocarbon radical having from 1 to 18 carbon atoms, preferably 1 to 6 carbon atoms, more preferably 1 to 3 carbon atoms, more preferably methyl;

[0058] - X, identical or different, is R or a hydroxyl group (OH) or an alkoxy group in C1-C6; preferably X is R, i.e. a monovalent hydrocarbon radical having from 1 to 18 carbon atoms, preferably from 1 to 6 carbon atoms, better still from 1 to 3 carbon atoms, more preferably methyl;

[0059] - A is an amino radical of formula -R'-[NR2-R3-]XNR22, or the amino forms protonated from said amino radical, in which R1 is a C1-C6 alkylene radical, of preferably a radical of formula -CH2CH2CH2- or -CH2CH(CH3)CH2-, R2, identical or different, is a hydrogen atom or a C1-C4 alkyl radical, preferably a hydrogen atom, R3 is a C1-C6 alkylene radical, preferably a radical of formula -CH2CH2-, and x is 0 or 1;

[0060] and

[0061] - m+n is an integer between 50 and approximately 1,000, preferably between 50 and 600.

[0062] Preferably, A is an amino radical of formula -R'-[NR2-R3-]XNR22, or the protonated amino forms of said amino radical, wherein R1 is -CH2CH2CH2- or -CH2CH(CH 3)CH2-, R2 are hydrogen atoms, R3 is -CH2CH2-, and x is 1.

[0063] Preferably, the R, which may be identical or different, are alkyl radicals, preferably Cr-Ci8 alkyl radicals, such as methyl, ethyl, n-propyl, isopropyl, 1-n-butyl, 2-n-butyl, isobutyl, tert-butyl, n-pentyl, isopentyl, neopentyl and tert-pentyl radicals, hexyl radicals, such as the n-hexyl radical, heptyl radicals such as the n-heptyl radical, octyl radicals, such as the n-octyl radical, and isooctyl radicals, such as the 2,2,4-trimethylpentyl radical, nonyl radicals, such as the n-nonyl radicals, decyl radicals, such as the n-decyl radical, dodecyl radicals, such as the n-dodecyl radical, and octadecyl radicals, such as the n-octadecyl radical; alkenyl radicals such as the vinyl and allyl radicals; cycloalkyl radicals such as the cyclopentyl, cyclohexyl, cycloheptyl and methylcyclohexyl radicals; aryl radicals such as the phenyl, naphthyl, anthryl and phenanthryl radicals;alkaryl radicals such as o-, m- and p-tolyl radicals, xylyl radicals and ethylphenyl radicals; and aralkyl radicals such as benzyl radical and a- and b-phenylethyl radicals. The methyl radical is most often preferred. ;

[0064] The amino silicones according to the invention have a viscosity of 1,000 to 15,000 mPa.s at 25°C, preferably of 1,500 to 15,000 mPa.s.

[0065] The amino silicones according to the invention have an amine index of 2 to 10 mg of KOH per gram of amino silicone, preferably of 3.5 to 8 mg.

[0066] The mole percentage of the amine functionality is preferably between about 0.3 and about 8%.

[0067] Examples of amino silicones useful in the silicone blend of the invention include trialkylsilyl terminated amino silicone.

[0068] Preferably, the amino silicones are trimethylsilyl-terminated aminoethylaminopropylmethylsiloxane copolymers, preferably trimethylsilyl-terminated aminoethylaminopropylmethylsiloxane-dimethylsiloxane copolymers. The amino radical A may be partially or fully protonated by the addition of acids to the amino silicone, wherein the salt forms of the amino radicals are obtained. The acids are, for example, carboxylic acids with 3 to 18 carbon atoms which can be linear or branched, such as formic acid, acetic acid, propionic acid, butyric acid, pivalic acid, sorbic acid, benzoic acid, salicylic acid. The acids are preferably used in amounts of 0.1 to 2.0 mol per 1 mol of amino radical A in the amino silicone of formula (X).

[0069] The silicone mixture preferably comprises (i) one or more trialkylsilyl terminated dialkylpolysiloxanes having a viscosity of 40,000 to less than 100,000 mPa.s at 25°C in an amount of 70 to 90% by weight, preferably 75 to 85% by weight and (ii) one or more amino silicones having a viscosity of 1,000 to 15,000 mPa.s at 25°C and an amine number of 2 to 10 mg of KOH per gram of amino silicone, in an amount of 10 to 30% by weight, preferably 15 to 25% by weight, based on the total weight of the silicone mixture.

[0070] - mixture of emulsifiers

[0071] The oil-in-water emulsion further comprises a mixture of emulsifiers which comprises one or more non-ionic emulsifiers. It may optionally comprise one or more cationic surfactants.

[0072] The emulsifier mixture has an HLB value between 10 and 16.

[0073] The non-ionic emulsifiers may be chosen from the non-ionic surfactants described below.

[0074] Mention may be made of alcohols, α-diols and alkyl (C1-20) phenols, these compounds being polyethoxylated and / or polypropoxylated and / or polyglycerolated, the number of ethylene oxide and / or propylene oxide groups being able to range from 1 to 100, and the number of glycerol groups being able to range from 2 to 30; or these compounds comprising at least one fatty chain comprising from 8 to 30 carbon atoms and especially from 16 to 30 carbon atoms.

[0075] Mention may also be made of condensates of ethylene oxide and propylene oxide with fatty alcohols; polyethoxylated fatty amides preferably comprising from 2 to 30 ethylene oxide units, polyglycerolated fatty amides comprising on average from 1 to 5, and in particular from 1.5 to 4, glycerol groups; ethoxylated fatty acid esters of sorbitan preferably comprising from 2 to 40 ethylene oxide units, fatty acid esters of sucrose, polyoxyalkylenated and preferably polyoxyethylenated fatty acid esters comprising from 2 to 150 moles of ethylene oxide, including oxyethylated vegetable oils, N-(C6-24 alkyl)glucamine derivatives, amine oxides such as C10-m alkyl amine oxides or N-(C10-u acyl)aminopropyl oxides.

[0076] Mention may also be made of non-ionic surfactants of the alkyl(poly)glycoside type, represented in particular by the following general formula:

[0077] R1O-(R2O)t-(G)v

[0078] in which:

[0079] - Ri represents a linear or branched alkyl or alkenyl radical, comprising 6 to 24 carbon atoms and in particular 8 to 18 carbon atoms, or an alkylphenyl radical whose linear or branched alkyl radical contains 6 to 24 carbon atoms and in particular 8 to 18 carbon atoms;

[0080] - R2 represents an alkylene radical comprising 2 to 4 carbon atoms,

[0081] - G represents a sugar unit comprising 5 to 6 carbon atoms,

[0082] -1 denotes a value between 0 and 10 and preferably between 0 and 4,

[0083] - v denotes a value ranging from 1 to 15 and preferably from 1 to 4.

[0084] Preferably, the alkylpolyglycoside surfactants are compounds of the formula described above in which:

[0085] - Ri denotes a linear or branched, saturated or unsaturated alkyl radical, comprising 8 with 18 carbon atoms,

[0086] - R2 represents an alkylene radical comprising 2 to 4 carbon atoms,

[0087] -1 denotes a value ranging from 0 to 3 and preferably equal to 0,

[0088] - G denotes glucose, fructose or galactose, preferably glucose;

[0089] - the degree of polymerization, i.e. the value of v, which can range from 1 to 15 and preferably from 1 to 4; the average degree of polymerization being more particularly between 1 and 2.

[0090] The glucosidic bonds between the sugar units are generally of the 1-6 or 1-4 type and preferably of the 1-4 type. Preferably, the alkyl(poly)glycoside surfactant is an alkyl(poly)glucoside surfactant. C8 / C16 1,4-alkyl(poly)glycosides, and more particularly decyl glucosides and caprylyl / capryl glucosides, are particularly preferred.

[0091] Among the commercial products, we can cite the products sold by the company COGNIS under the names PLANTAREN® (600 CS / U, 1200 and 2000) or PLANTACARE® (818, 1200 and 2000); the products sold by the company SEPPIC under the names ORAMIX CG 110 and ORAMIX NS 10; the products sold by the company BASF under the name LUTENSOL GD 70, or the products sold by the company CHEM Y under the name AGIO LK.

[0092] The non-ionic emulsifiers could preferably be chosen from ethoxylated aliphatic alcohols, polyoxyethylene surfactants, carboxylic esters, polyethylene glycol esters, sorbitol ester and its ethoxylated derivatives, fatty acid glycol esters, carboxylic amides, monoalkanolamine condensates, polyoxyethylene fatty acid amides.

[0093] Preferably, the non-ionic emulsifiers are chosen from:

[0094] (i) polyoxyalkylene alkyl ethers, in particular (poly)ethoxylated fatty alcohols of formula:

[0095] R3-(OCH2CH2)cOH

[0096] with:

[0097] - R3 representing a linear or branched C8-C40 alkyl or alkenyl group, of preferably a C8-C30 alkyl or alkenyl group, optionally substituted by one or more hydroxyl groups, and

[0098] - c being an integer between 1 and 200 inclusive, preferably between 2 and 150 and more particularly between 4 and 50, preferably between 8 and 20.

[0099] (Poly)ethoxylated fatty alcohols are more particularly fatty alcohols comprising from 8 to 22 carbon atoms, oxyethylenated with 1 to 30 moles of ethylene oxide (1 to 30 EO);

[0100] (ii) polyoxyalkylene (C8-C32)alkylphenyl ethers,

[0101] (iii) polyoxyalkylenated (C8-C32) sorbitan fatty acid esters, in particular polyethoxylated sorbitan fatty acid esters preferably containing from 2 to 40 ethylene oxide units, most preferably from 2 to 20 ethylene oxide units; preferably polyoxyethylenated (C10-C24) sorbitan fatty acid esters preferably containing from 2 to 40 ethylene oxide units, most preferably from 2 to 20 ethylene oxide units; and

[0102] (iv) polyoxyethylenated fatty acid esters (C8-C32) containing for example from 2 to 150 moles of ethylene oxide; preferably polyoxyethylenated fatty acid esters (C10-C24) containing for example from 2 to 150 moles of ethylene oxide.

[0103] Preferably, the non-ionic emulsifiers could be chosen from polyalkylene glycol alkyl ethers and polyalkylene glycol alkyl esters, preferably polyethylene glycol (PEG).

[0104] Here are some useful emulsifiers:

[0105] - polyethylene glycol octyl ether; polyethylene glycol lauryl ether; polyethylene glycol tridecyl ether; polyethylene glycol cetyl ether; polyethylene glycol stearyl ether; among these, mention may be made more particularly of tridecethyl-3, tridecethyl-10 and stearethyl-6.

[0106] - polyethylene glycol nonylphenyl ether; poly dodecylphenyl ether ethylene glycol; polyethylene glycol cetylphenyl ether; polyethylene glycol stearyl ether;

[0107] - polyethylene glycol sorbitan monostearate, polyethylene glycol monooleate sorbitan.

[0108] - polyethylene glycol stearate, and in particular PEG-100 stearate.

[0109] Preferably, the non-ionic emulsifiers are chosen from steareth-6, PEG-100 stearate, trideceth-3 and trideceth-10 and mixtures of these compounds; preferably, all of these emulsifiers are present in the emulsifier mixture.

[0110] The emulsifier mixture may comprise one or more cationic emulsifiers which may be selected from tetraalkylammonium halides, tetraarylammonium halides, tetraalkylarylammonium halides and their salts; quaternary ammonium compounds, including salts; preferably, the cationic emulsifiers could be selected from cetrimonium or behentrimonium halides, such as the chloride.

[0111] The oil-in-water emulsion preferably comprises the mixture of emulsifiers in a total amount of 5 to 15% by weight, preferably 8 to 15% by weight, preferably 10 to 12% by weight, relative to the total weight of the emulsion.

[0112] The oil-in-water emulsion preferably comprises non-ionic emulsifiers in a total amount of 5 to 15% by weight, preferably 8 to 15% by weight, preferably 10 to 12% by weight, relative to the total weight of the emulsion.

[0113] The oil-in-water emulsion preferably comprises cationic emulsifiers, when present, in a total amount of 0.5 to 1.5% by weight, relative to the total weight of the emulsion.

[0114] The oil-in-water emulsion preferably comprises the silicone mixture in a total amount of 40 to 60% by weight, preferably 45 to 55% by weight, relative to the total weight of the emulsion.

[0115] The oil-in-water emulsion preferably comprises the trialkylsilyl-terminated dialkylpolysiloxane(s) in a total amount of 35 to 45% by weight, preferably 38 to 42% by weight, relative to the total weight of the emulsion.

[0116] The oil-in-water emulsion preferably comprises the amino silicone(s) in a total amount of 5 to 15% by weight, preferably 8 to 12% by weight, relative to the total weight of the emulsion.

[0117] The oil-in-water emulsion comprises water, preferably in an amount of 25 to 50% by weight, preferably 30 to 45% by weight, preferably 35 to 42% by weight, relative to the total weight of the emulsion.

[0118] The oil-in-water emulsion could further comprise a biocide, such as phenoxyethanol, which could be present in the emulsion in an amount of 0.5 to 1% by weight, based on the total weight of the emulsion.

[0119] A method of preparing the oil-in-water emulsion preferably comprises:

[0120] - a step of mixing one or more trial-terminated dialkylpolysiloxanes alkylsilyl with a viscosity of between 40,000 and less than 100,000 mPa.s at 25°C and one or more amino silicones with a viscosity of between 1,000 and 15,000 mPa.s at 25°C and an amine index of between 2 and 10 mg of KOH per gram of amino silicone, at a temperature of between 15°C and 40°C, preferably at 25°C, to obtain a mixed silicone fluid, then

[0121] - a step of adding a mixture of emulsifiers comprising one or several non-ionic emulsifiers, wherein the emulsifier mixture has an HLB value of 10 to 16, to the mixed silicone fluid to obtain a silicone-emulsifier mixture, and then

[0122] - a step of homogenization of the silicon-emulsifier mixture followed by

[0123] - a step of adding, preferably in stages, water, preferably demineralized water, to obtain an oil-in-water emulsion having a particle size D50 less than 350 nm.

[0124] The method of preparing the oil-in-water emulsion could further comprise an additional step of adding a biocide. A biocide could be added to preserve the emulsion against microbial contamination. The biocide could be added at the level of preserving the emulsion against microbial contamination and obtaining said emulsion. The amount of biocide depends on the type of biocide and the manufacturer's recommendation.

[0125] The preparation of the emulsifier mixture could be done by mixing one or more non-ionic emulsifiers.

[0126] The pH of the oil-in-water emulsion after neutralization (i.e. after addition of the biocide) is preferably between 4 and 6.

[0127] The oil-in-water emulsion has a D50 particle size of less than 350 nm, preferably 100 to 300 nm, more preferably 150 to 250 nm, even more preferably 150 to 225 nm, and most preferably 160 to 200 nm. The D50 particle size corresponds to the average diameter of the hydrodynamic particles and is expressed in volume. The D50 particle size can be measured using a ZetaSizer apparatus from Malvem, UK, model Nano-ZS, which is based on the photon correlation spectroscopy (PCS) method.

[0128] - Particle size measurement

[0129] The particle size of an emulsion can be measured using a ZetaSizer device from Malvern, UK, model Nano-ZS, which is based on the photon correlation spectroscopy (PCS) method. The D50 value of the particle size (average hydrodynamic diameter of the particles) is measured, the evaluation algorithm being "cumulant analysis".

[0130] For example, 0.5 g of the emulsion sample is taken into a 250 ml beaker, 100 ml of deionized water is poured into it and then mixed well to obtain the sample test solution. The sample test solution is poured into the cell of the cuvette and is placed in the slot of the instrument to measure the particle size of the emulsion. D50 is defined as the value of the 50% particle diameter in the cumulative distribution. For example, if D50=170 nm, then 50% of the sample particles are larger than 170 nm, and 50% are smaller than 170 nm or about 50% by volume of all the droplets of said emulsion is 170 nm.

[0131] - Viscosity measurement

[0132] The viscosity, in particular of silicones or of the emulsion, is measured at 25°C and at atmospheric pressure.

[0133] For viscosities between 1,000 and 40,000 mPa.s at 25°C: viscosity can be measured with an Anton Paar rheometer; model MCR101, single-slot cylinder geometry: CC27 spindle and shear rate of 1 s 1 for 2 minutes, at 25°C.

[0134] For viscosities between 40,000 and 100,000 mPa.s at 25°C: viscosity can be measured with an Anton Paar rheometer; model MCR101, cone 25-6 (conical plate geometry: 25 mm diameter / 6° cone); with the “Zero gap” setting being carried out and with a shear rate of 1 s 1 for 2 minutes, at 25°C.

[0135] Three measurements are made for each sample and the viscosity value is taken at 60 seconds. The MCR rheometer series products operate in accordance with USP (US Pharmacopeia Convention) 912 - Rotational Rheometer Methods.

[0136] - Measurement of the amine index

[0137] The amine value is determined by acid-base titration using a potentiometer [Make: Veego; Model: VPT-MG]. 0.6 g of sample is taken into a 500 ml beaker and a 1:1 toluene-butanol mixture is added and stirred to mix the sample well; then the sample solution is titrated with 0.1(N) HCl solution. The blank value is also determined with the 1:1 toluene-butanol mixture. The calculation of the amine value is carried out using the above-mentioned potentiometer.

[0138] The amine index is calculated according to the following formula

[0139] 56.11 x (V - VBlanc) x N / W mg KOH / g of sample,

[0140] in which

[0141] V = Volume of HCl required in ml, VBlank = Volume of HCl for the blank value (without sample) with the toluene-butanol mixture 1:1 in ml;

[0142] N = Normality of HCl, i.e. 0.1 N, W = Weight of sample taken in grams.

[0143] - HLB Value

[0144] The term HLB is well known to those skilled in the art and denotes the hydrophilic-lipophilic balance of a surfactant or emulsifier. In the present invention, the HLB values refer to the values at 25°C and atmospheric pressure.

[0145] HLB can be measured by experimental determination or can be calculated.

[0146] The calculation of the HLB value of a non-ionic surfactant is calculated according to the equation: HLB = (E + P) / 5, E being the weight percentage of the oxyethylene content and P the weight percentage of the polyhydric alcohol content, described in the publication Griffin, J. Soc. Cosm. Chem. 1954 (vol. 5, no. 4), pp. 249-256.

[0147] It can also be determined experimentally according to the book by F. Puisieux and M. Seiller, entitled “Galenica 5: Dispersed systems - Volume I - Surface agents and emulsions - Chapter IV - Notions of HLB and critical HLB, pl53 to l94 - paragraph 1.1.2. Determination of HLB by experimental means, p 164 to 180”.

[0148] The calculated HLB values are the preferred HLB values that should be considered.

[0149] Said calculated HLB could be defined as follows:

[0150] “Calculated HLB = 20 x molar mass of the hydrophilic part / total molar mass”.

[0151] For an oxyethylenated fatty alcohol, the hydrophilic part corresponds to the oxyethylene units condensed on the fatty alcohol and the “calculated HLB” then corresponds to the “Griffin HLB” as defined above.

[0152] For an ester or an amide, the hydrophilic part is naturally defined as being beyond the carbonyl group, from the fatty chain(s).

[0153] For ionic surfactants / emulsifiers, the HLB value of each surfactant / emulsifier can be calculated by applying the Davies formula as described in Davies JT (1957), “A quantitative kinetic theory of emulsion type, I. Physical chemistry of the emulsifying agent”, Gas / Liquid and Liquid / Liquid Interface (Proceedings of the International Congress of Surface Activity): p 426 to 438.

[0154] According to the formula, the HLB is obtained by adding the hydrophilic / hydrophobic contribution provided by the structural components of the emulsifier:

[0155] HLB = (number of hydrophilic groups) - n (number of groups per CH2 group) +7.

[0156] Approximate HLB values for some cationic emulsifiers are shown in Table IV, in "Cationic emulsifiers in cosmetics", GODFREY, J. Soc. Cosmetic Chemists (1966) 17, pp. 17-27.

[0157] When two emulsifiers A and B of known HLB are mixed for use, the HLBMix is said to be the HLB required for the mixture. This is expressed by the equation (WAHLBA + WbHLBb) / (Wa + WB) = HLBMix, where WA = the amount (weight) of the first emulsifier (A) used, and WB = the amount (weight) of the second emulsifier (B); HLBa, HLBb = the assigned HLB values for emulsifiers A and B; HLBMix = the HLB of the mixture.

[0158] The oil-in-water emulsion used in the present invention is for example described in document WO 2017 / 108824.

[0159] The composition according to the invention preferably comprises the oil-in-water emulsion a) in an amount ranging from 0.1% to 20% by weight, preferably from 0.3% to 15% by weight, more preferably from 0.5% to 12% by weight, better still from 1 to 10%, even better still from 2 to 8% by weight, relative to the total weight of the composition.

[0160] The composition according to the invention preferably comprises the trialkylsilyl-terminated dialkylpolysiloxane(s) having a viscosity of 40,000 to less than 100,000 mPa.s at 25°C in a total amount ranging from 0.1 to 8% by weight, preferably from 0.2 to 5% by weight, more preferably from 0.5 to 4% by weight, better still from 1 to 3% by weight, relative to the total weight of the composition.

[0161] The composition according to the invention preferably comprises the amino silicone(s) having a viscosity of 1,000 to 15,000 mPa.s at 25°C and an amine index of 2 to 10 mg of KOH per gram of amino silicone, in a total amount ranging from 0.1 to 5% by weight, preferably from 0.2 to 3% by weight, more preferably from 0.25 to 2% by weight, better still from 0.3 to 1% by weight, relative to the total weight of the composition.

[0162] Polymers comprising one or more cationic or quaternized acrylamide and / or methacrylamide units

[0163] The composition according to the invention comprises one or more polymers comprising one or more cationic or quaternized acrylamide and / or methacrylamide units.

[0164] These polymers are non-silicones, that is to say they do not contain any silicon (Si) atoms.

[0165] The polymers comprising one or more cationic or quaternized (meth)acrylamide units may be cationic and / or amphoteric polymers.

[0166] By “cationic and / or amphoteric polymer(s)” is meant one or more cationic polymers, one or more amphoteric polymers or the mixture of one or more cationic polymers and one or more amphoteric polymers.

[0167] The polymer(s) comprising one or more cationic or quaternized (meth)acrylamide units may be chosen from cationic polymers, amphoteric polymers and their mixtures. Preferably, they are chosen from cationic polymers.

[0168] The cationic charge density of the polymers comprising one or more cationic or quaternized (meth)acrylamide units may preferably be less than or equal to 6.5 meq / g, better still less than or equal to 6.0 meq / g, more preferably less than or equal to 5 meq / g, and better still less than or equal to 4 meq / g. This cationic charge density advantageously varies from 0.5 to 6.5 meq / g, better still from 0.8 to 6.0, better still from 1 to 5 meq / g, and more preferably still from 1.5 to 4 meq / g.

[0169] The term "cationic polymer" means any polymer comprising cationic groups and / or groups which can be ionized into cationic groups, and not comprising anionic groups and / or groups which can be ionized into anionic groups. Preferably, the cationic polymer is hydrophilic or amphiphilic. Preferred cationic polymers are selected from those which contain units comprising primary, secondary, tertiary and / or qua amine groups. ternaries which can either be part of the main polymer chain or be carried by a side substituent directly linked to it.

[0170] The polymers comprising one or more cationic or quaternized (meth)acrylamide units which can be used in the present invention are preferably chosen from homopolymers or copolymers comprising at least one of the units of the following formulas:

[0171] R? (II) R, (III) NH NH RY' R R—N—R, jL B 'O R,

[0172] in which:

[0173] - Rb which may be identical or different, denote a hydrogen atom or a CH3 radical;

[0174] - R, identical or different, denote a linear or branched CrCi2 alkyl radical , preferably a linear C1-C6 alkyl radical, optionally substituted by one or more hydroxyl radicals;

[0175] - R5, R6 and R7, identical or different, denote a linear CrCi8 alkyl radical or branched, or a benzyl radical, preferably a linear or branched C1-C6 alkyl radical;

[0176] - R8 and Rç), identical or different, denote a hydrogen atom or a radical linear or branched C1-C6 alkyl, preferably methyl or ethyl; and

[0177] - Y denotes an anion derived from a mineral or organic acid or from a halide, preferably a bromide, chloride, acetate, borate, citrate, tartrate, bisulfate, bisulfite, methosulfate, sulfate or phosphate anion.

[0178] More particularly, the polymers comprising cationic or quaternized (meth)acrylamide units are chosen from copolymers comprising at least one unit of formula (II) as defined above, and more preferably comprising at least one unit of formula (II) in which Ri denotes a hydrogen atom, R represents a linear alkyl group having 3 carbon atoms and R5, R6 and R7 represent a methyl.

[0179] Cationic polymers comprising one or more cationic or quaternized (meth)acrylamide units may also comprise one or more units derived from comonomers which may be chosen from the families of acrylamides, meth-

[0180]

[0181]

[0182]

[0183]

[0184]

[0185]

[0186]

[0187]

[0188]

[0189]

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[0191]

[0192] crylamides, diacetone acrylamides, acrylic or methacrylic acids or their esters, vinyllactams such as vinylpyrrolidone or vinylcaprolactam, and vinyl esters, preferably chosen from the acrylamide and methacrylamide families, and more preferably acrylamide or methacrylamide. Among these homo- or co-polymers, we can cite - homopolymers of acrylamidopropyltrimonium halides, preferably chloride, such as ASHLAND's N-DURHANCE A-1000 product, - copolymers of acrylamidopropyltrimonium halides, preferably chloride, and acrylamide, such as the product sold under the name Salcare® SC 60 by BASF or sold under the name N-Hance SP 100 or N-Durhance AA2000 by Ashland, or the product sold under the name N-Hance 4572 (e.g., Aqualon aqua 4572 conditioning polymer) by Ashland, which is a mixture of guar hydroxypropyltrimonium chloride and acrylamide-propyltrimonium chloride / acrylamide copolymer, - vinylpyrrolidone / methacrylamidopropyldimethylamine copolymers, such as those sold under the name STYLEZE CC 10 by ISP, - quaternized vinylpyrrolidone / dimethylaminopropylmethacrylamide copolymers such as the product sold under the name GAFQUAT HS 100 by the company ISP. The polymers comprising one or more cationic or quaternized (meth)acrylamide units which can be used in the present invention can also be chosen from amphoteric polymers. The term "amphoteric polymer" means any polymer comprising cationic groups and / or groups capable of being ionized into cationic groups, and comprising anionic groups and / or groups capable of being ionized into anionic groups The amphoteric polymers may be chosen more particularly from among the amphoteric polymers comprising a repetition of: (i) one or more units derived from a (meth)acrylamide monomer, (ii) one or more units derived from a (meth)acrylamidoalkyltrialkylammonium monomer, and (iii) one or more units derived from an acid monomer of (meth)acrylic acid type. Preferably, the units derived from a (meth)acrylamide monomer (i) are units of structure (VI) below:

[0193] in which:

[0194] - Ri denotes a hydrogen atom or a CH3 radical; and

[0195] - R2 denotes a radical NR3R4, in which R3 and R4, identical or different, denote a hydrogen atom or a linear or branched C1-C12 alkyl radical, optionally substituted by one or more hydroxyl radicals, preferably R2 denotes an amino radical, a dimethylamino, a tert-butylamino, a dodecylamino or a -NH-CH2OH radical.

[0196] Preferably, said amphoteric polymer comprises a repetition of a single unit of formula (VI).

[0197] The unit derived from a (meth)acrylamide monomer of formula (VI) in which Ri denotes a hydrogen atom and R2 is an amino radical (NH2) is particularly preferred. It corresponds to the acrylamide monomer as such.

[0198] Preferably, the units derived from a monomer of (meth)acrylamidoalkyltrialkylammonium type (ii) are units of structure (VII) below:

[0199] “ p "1 (VII)

[0200] in which:

[0201] - Ri denotes a hydrogen atom or a CH3 radical;

[0202] - R5, R6 and R7, identical or different, denote a linear C1-C6 alkyl radical or branched, preferably a linear or branched CrC4 alkyl radical;

[0203] - n denotes an integer ranging from 1 to 6, preferably from 1 to 4; and

[0204] - Y denotes an anion derived from a mineral or organic acid or from a halide, preferably a bromide, chloride, acetate, borate, citrate, tartrate, bisulfate, bisulfite, methosulfate, sulfate or phosphate anion.

[0205] Preferably, said amphoteric polymer comprises a repetition of a single unit of formula (VII).

[0206] Among these units derived from a monomer of (meth)acrylamidoalkyltrialkylammonium type of formula (VII), those which are preferred are those derived from the monomer methacrylamidopropyltrimethylammonium chloride, for which Ri denotes a methyl radical, n is equal to 3, R5, R6 and R7 denote a

[0207]

[0208]

[0209]

[0210]

[0211]

[0212]

[0213]

[0214]

[0215]

[0216]

[0217]

[0218]

[0219]

[0220] methyl radical, and Y denotes a chloride anion. Preferably, the units derived from a (meth)acrylic acid monomer (iii) are units of formula (VIII): (VIII) in which: - Ri represents a hydrogen atom or a CH3 radical; and - R2 denotes a hydroxyl radical or an NR3R4 radical, in which R3 and R4, identical or different, denote a hydrogen atom or a linear or branched C1-C12 alkyl radical optionally substituted by a sulfonic group (-SO3H), preferably R2 denotes a -NH-C(CH3)2-CH2-SO3H radical. Preferred units of formula (VIII) correspond to the monomers acrylic acid, methacrylic acid and 2-acrylamino-2-methylpropanesulfonic acid. Preferably, the unit derived from a (meth)acrylic acid monomer of formula (VIII) is that derived from acrylic acid, for which R 1 represents a hydrogen atom and R 2 a hydroxyl radical. The acid monomer(s) of the (meth)acrylic acid type may be unneutralized or partially or totally neutralized with an organic or mineral base. Preferably, said amphoteric polymer comprises a repetition of a single unit of formula (VIII). According to a preferred embodiment of the invention, the amphoteric polymer(s) of this type comprise(s) at least 30 mol% of units derived from a monomer of (meth)acrylamide type (i). Preferably, they comprise from 30% to 70 mol% and more preferably from 40% to 60 mol% of units derived from a monomer of (meth)acrylamide type. The content of units derived from a monomer of (meth)acrylamidoalkyltrialkylammonium type (ii) may advantageously be from 10% to 60% by mole and preferably from 20% to 55% by mole. The content of units derived from an acid monomer of (meth)acrylic acid type (iii) may advantageously be from 1 to 20 mol% and preferably from 5 to 15 mol%. According to a particularly preferred embodiment of the invention, the amphoteric polymer of this type comprises: - from 30 mol% to 70 mol% and preferably from 40 mol% to 60 mol% of units derived from a monomer of (meth)acrylamide type (i),

[0221] - from 10 mol% to 60 mol% and preferably from 20 mol% to 55 mol% moles of units derived from a monomer of (meth)acrylamidoalkyltrialkylammonium type (ii), and

[0222] - from 1 mol% to 20 mol% and preferably from 5 mol% to 15 mol% moles of units derived from a monomer of (meth)acrylic acid type (iii).

[0223] Amphoteric polymers of this type may also comprise additional units, other than the units derived from a (meth)acrylamide, (meth)acrylamidoalkyltrialkylammonium and (meth)acrylic acid monomer as described above.

[0224] However, according to a preferred embodiment of the invention, said amphoteric polymers consist solely of units derived from monomers (i) of (meth)acrylamide type, (ii) of (meth)acrylamidoalkyltrialkylammonium type and (iii) of (meth)acrylic acid type.

[0225] Examples of particularly preferred amphoteric polymers include acrylamide / methacrylamidopropyltrimethylammonium chloride / acrylic acid terpolymers. These polymers are listed in the CTFA International Cosmetic Ingredient Dictionary under the name Polyquatemium 53. The corresponding products are sold in particular under the names Merquat 2003 and Merquat 2003 PR by the company Nalco.

[0226] Another preferred type of amphoteric polymers is the polymer comprising a repetition of:

[0227] (i) one or more non-ionic units derived from a monomer of type (meth)acrylate,

[0228] (ii) one or more units derived from a monomer of (meth)acrylamidoalkyltrialkylammonium type, and

[0229] (iii) one or more units derived from an acid monomer of (meth)acrylic acid type.

[0230] The (meth)acrylamidoalkyltrialkylammonium monomer and the (meth)acrylic acid acid monomer (monomers (ii) and (iii) respectively) are as described above.

[0231] The non-ionic monomers (i) of (meth)acrylate type are preferably chosen from C1-C4 alkyl acrylates and methacrylates. A preferred monomer is methyl acrylate.

[0232] Particularly preferred examples of these amphoteric polymers include acrylic acid / methylacrylamidopropyltrimethylammonium chloride / methyl acrylate terpolymers. These polymers are listed in the CTFA International Dictionary of Cosmetic Ingredients under the name polyquatemium 47. The corresponding products are sold in particular under the names Merquat 2001 and Merquat 2001N by Nalco.

[0233] The polymer(s) b) preferably comprises one or more cationic or quaternized (meth)acrylamide units and are preferably chosen from:

[0234] - (meth)acrylamido(C1-C6 alkyl)tri(C1-C6 alkyl)halide copolymers -C4) ammonium / (meth)acrylamide, preferably (meth)acrylamidopropyltrimonium chloride / (meth)acrylamide copolymers, and more preferably acrylamidopropyltrimonium chloride / acrylamide copolymers,

[0235] - (meth)acrylamido(C1-C6 alkyl)tri(C1-C6 alkyl) halide terpolymers -C4) ammonium / (meth)acrylamide / (meth)acrylic acid, preferably terpolymers of (meth)acrylamidopropyltrimonium chloride / (meth)acrylamide / (meth)acrylic acid, more preferably terpolymers of acrylamide / methacrylamidopropyltrimethylammonium chloride / acrylic acid,

[0236] - (meth)acrylamido(C1-C6 alkyl)tri(C1-C6 alkyl)halide terpolymers -C4) ammonium / C1-C6 alkyl (meth)acrylate / (meth)acrylic acid, preferably terpolymers of (meth)acrylamidopropyltrimonium chloride / C1-C6 alkyl (meth)acrylate / (meth)acrylic acid; more preferably terpolymers of acrylic acid / methylacrylamidopropyl-trimethyl-ammonium chloride / methyl acrylates,

[0237] - and their mixtures.

[0238] More preferably still, the polymer(s) comprising one or more cationic or quaternized (meth)acrylamide units is (are) chosen from

[0239] - (meth)acrylamido(C1-C6 alkyl)tri(C1-C6 alkyl)halide copolymers 4) ammonium / (meth)acrylamide, better (meth)acrylamide-propyltrimonium chloride / (meth)acrylamide copolymers, and more preferably acrylamidopropyltrimonium chloride / acrylamide copolymers.

[0240] Preferably, the total amount of polymer(s) b) comprising one or more cationic or quaternized (meth)acrylamide units present in the composition of the present invention advantageously varies from 0.01 to 5% by weight, more preferably from 0.015 to 4% by weight, even more preferably from 0.02 to 2% by weight, better still from 0.03 to 1% by weight, and even better still from 0.04 to 0.5% by weight, relative to the total weight of the composition.

[0241] Preferably, the composition could comprise the polymer(s) chosen from (meth)acrylamido(C1-C6 alkyl)tri(C1-C4 alkyl)ammonium halide / (meth)acrylamide copolymers, in a total amount advantageously ranging from 0.01 to 5% by weight, more preferably from 0.015 to 4% by weight, even more preferably from 0.02 to 2% by weight, better still from 0.03 to 1% by weight, and even better still from 0.04 to 0.5% by weight, relative to the total weight of the composition.

[0242] Cationic polysaccharides

[0243] The composition according to the invention comprises one or more cationic polysaccharides.

[0244] According to the invention, the cationic polysaccharide(s) c) used in the composition is (are) different from the polymers b) comprising one or more cationic or quaternized acrylamide and / or methacrylamide units.

[0245] The term “cationic polysaccharide” means any polysaccharide comprising cationic groups and / or groups capable of being ionized into cationic groups, and not comprising anionic groups and / or groups capable of being ionized into anionic groups.

[0246] Among the cationic polysaccharides which can be used according to the invention, mention may be made more particularly of cellulose ether derivatives comprising quaternary ammonium groups, cationic cellulose copolymers or cellulose derivatives grafted with a water-soluble quaternary ammonium monomer and cationic galactomannan gums.

[0247] Cellulose ether derivatives containing quaternary ammonium groups are specifically described in French patent 1,492,597, and mention may be made of the polymers sold under the name UCARE POLYMER “JR” (JR 400 LT, JR 125 and JR 30M) or “LR” (LR 400 or LR 30M) by the Dow Chemical company. These polymers are also defined in the CTFA dictionary as quaternary ammoniums of hydroxyethylcellulose which have reacted with an epoxide substituted by a trimethylammonium group. Polyquaternium-10 is, for example, one of these polymers.

[0248] 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, for example hydroxymethyl-, hydroxyethyl- or hydroxypropylcelluloses grafted, in particular, with a methacryloylethyltrimethylammonium, methacrylamidopropyltrimethylammonium or dimethyldiallylammonium salt. The commercial products corresponding to this definition are more particularly the products sold under the names CELQUAT L 200 and CELQUAT H 100 by the company National Starch.

[0249] Cationic galactomannan gums are more particularly described in US patents 3,589,578 and 4,031,307, and mention may be made of guar gums comprising cationic trialkylammonium groups, preferably C1-C6 trialkylammonium groups. For example, guar gums modified with a 2,3-epoxypropyltrimethylammonium salt (for example, chloride) are used. These products are notably sold under the names JAGUAR C13 S, JAGUAR C 15, JAGUAR C 17 or JAGUAR C162 by the company Rhodia.

[0250] Preferably, the cationic polysaccharide(s) is (are) chosen from among cationic celluloses, cationic galactomannan gums and mixtures thereof.

[0251] Preferably, the cationic polysaccharide(s) is (are) chosen from cellulose ether derivatives comprising quaternary ammonium groups, guar gums comprising cationic trialkylammonium groups, and mixtures thereof.

[0252] More preferably, the cationic polysaccharide(s) is (are) chosen from cationic galactomannan gums, and better still from guar gums comprising cationic trialkylammonium groups.

[0253] Preferably, the total amount of cationic polysaccharide(s) c) varies from 0.01 to 5% by weight, better still from 0.015 to 4% by weight, better still from 0.02 to 3% by weight, better still from 0.05 to 2% by weight, and better still from 0.1 to 1% by weight, relative to the total weight of the composition.

[0254] Preferably, when the cationic polysaccharide(s) is (are) chosen from cellulose ether derivatives comprising quaternary ammonium groups, the total amount of said cationic polysaccharide(s) varies from 0.01 to 5% by weight, more preferably from 0.015 to 4% by weight, even more preferably from 0.02 to 3% by weight, better still from 0.05 to 2% by weight, and even better still from 0.1 to 1% by weight, relative to the total weight of the composition.

[0255] Preferably, when the cationic polysaccharide is polyquaternium-10, the total amount of said cationic polysaccharide varies from 0.01 to 5% by weight, preferably from 0.015 to 4% by weight, more preferably from 0.02 to 3% by weight, better still from 0.05 to 2% by weight, and even better still from 0.1 to 1% by weight, relative to the total weight of the composition.

[0256] Preferably, when the cationic polysaccharide is a guar gum comprising cationic trialkylammonium groups, the total amount of said cationic polysaccharide varies from 0.01 to 5% by weight, preferably from 0.015 to 4% by weight, more preferably from 0.02 to 3% by weight, better still from 0.05 to 2% by weight, and even better still from 0.1 to 1% by weight, relative to the total weight of the composition.

[0257] Preferably, when the cationic polysaccharide is guar hydroxypropyltrimonium chloride, the total amount of said cationic polysaccharide varies from 0.01 to 5% by weight, preferably from 0.015 to 4% by weight, more preferably from 0.02 to 3% by weight, better still from 0.05 to 2% by weight, and even better still from 0.1 to 1% by weight, relative to the total weight of the composition.

[0258] According to a preferred embodiment, the weight ratio of the total quantity of said cationic polysaccharide(s) c) to the total quantity of said polymer(s) b) comprising one or more cationic or quaternized units of acrylamide and / or methacrylamide ranges from 0.1 to 100.

[0259] More preferably, the weight ratio of the total quantity of said poly- cationic saccharide(s) c) on the total quantity of said polymer(s) b) comprising one or more cationic or quaternized acrylamide and / or methacrylamide units is greater than or equal to 1; preferably, it is between 1 and 50, better still between 1.5 and 20; and even better still between 2 and 10.

[0260] When the composition comprises one or more cationic polysaccharides chosen from cationic galactomannan gums, preferably, the weight ratio of the total quantity of cationic galactomannan gums to the total quantity of said polymers b) comprising one or more cationic or quaternized acrylamide and / or methacrylamide units varies from 0.1 to 100, preferably is greater than or equal to 1; more preferably varies from 1 to 50, better still from 1.5 to 20; and better still between 2 and 10.

[0261] More preferably, the weight ratio of the total quantity of guar gum(s) comprising cationic trialkylammonium groups to the total quantity of said polymers b) comprising one or more cationic or quaternized acrylamide and / or methacrylamide units varies from 0.1 to 100, more preferably is greater than or equal to 1; better still varies from 1 to 50, better still from 1.5 to 20; and better still from 2 to 10.

[0262] More preferably still, the weight ratio between the total quantity of guar gum(s) comprising cationic trialkylammonium groups and the total quantity of (meth)acrylamido(C1-C6 alkyl)tri(C1-C4 alkyl)ammonium / (meth)acrylamide halide copolymers varies from 0.1 to 100, better still is greater than or equal to 1; better still varies from 1 to 50, better still from 1.5 to 20; and better still from 2 to 10.

[0263] The polymer containing alkyldiallylamine or dialkyldiallylammonium units

[0264] The composition according to the invention comprises one or more polymers d) containing alkyldiallylamine and / or dialkyldiallylammonium units. These polymers are chosen from homo- and co-polymers of alkyldiallylamine and / or dialkyldiallylammonium.

[0265] According to the invention, said polymer(s) d) is (are) different from polymers b) comprising one or more cationic or quaternized acrylamide and / or methacrylamide units, and different from cationic polysaccharides c).

[0266] Preferably, said polymers d) do not contain cationic or quaternized acrylamide and / or methacrylamide units.

[0267] These polymers are non-silicones, that is to say they do not contain any silicon (Si) atoms.

[0268] According to a preferred embodiment, said polymers d) are chosen from homopolymers and copolymers comprising units corresponding to formulas (I) or (II) below: . (CH4& jCii# -{CHgK---ÇR12 G(R^-GH2- -{CHjt-----------CR,„ 'G(R^)-GH2- zCHs HgC. zCH„ ($ y. (II) N L

[0270] in which

[0271] - k and t are equal to 0 or 1, the sum k + t being equal to 1;

[0272] - R12 denotes a hydrogen atom or a methyl radical;

[0273] - Rio and Rn, independently of each other, denote a C1-C6 alkyl group, a C1-C5 hydroxyalkyl group, a C1-C4 amidoalkyl group; or R10 and R11 together with the nitrogen atom to which they are attached may denote a heterocyclic group such as piperidinyl or morpholinyl; R10 and R11, independently of each other, preferably denote a C1-C4 alkyl group;

[0274] - Y is an anion such as bromide, chloride, acetate, borate, citrate, tartrate, bisulfate, bisulfite, sulfate or phosphate.

[0275] We can cite more particularly

[0276] - the homopolymer of dimethyldiallylammonium salts (e.g. a halide such as chloride) for example the compound POLYQUATERNIUM 6 (INCI name) such as the product sold under the name Merquat 100 by the company Lubrizol, and

[0277] - copolymers of diallyldimethylammonium salts (e.g. halide such as chloride) and (meth)acrylamide, for example the compound POLYQUATERNIUM 7 (INCI name) such as those sold in particular under the names Merquat 550 or Merquat 7SPR by the company Lubrizol.

[0278] Copolymers of diallyldimethylammonium salts and acrylamide are particularly preferred, such as in particular copolymers of diallyldimethylammonium chloride and acrylamide called Polyquatemium 7.

[0279] Preferably, the total amount of polymer(s) containing alkyldial-lylamine and / or dialkyldiallylammonium units d) varies from 0.01 to 5% by weight, more preferably from 0.05 to 4% by weight, even more preferably from 0.1 to 3% by weight, better still from 0.2 to 2% by weight, and even better still from 0.3 to 1% by weight, relative to the total weight of the composition.

[0280] Preferably, when the polymer(s) containing alkyldiallylamine and / or dialkyldiallylammonium units are chosen from copolymers of diallyldimethylammonium salts and acrylamide, such as in particular copolymers of diallyldimethylammonium chloride and acrylamide, the total amount of said polymer(s) varies from 0.01 to 5% by weight, more preferably from 0.05 to 4% by weight, more preferably still from 0.1 to 3% by weight, better still from 0.2 to 2% by weight, and better still still from 0.3 to 1% by weight, relative to the total weight of the composition.

[0281] Anionic surfactants

[0282] According to a preferred embodiment, the composition according to the invention further comprises one or more anionic surfactants.

[0283] The term “anionic surfactant” means a surfactant comprising, as ionic or ionizable groups, only anionic groups.

[0284] In the present description, a species is said to be “anionic” when it carries at least one permanent negative charge or when it can be ionized as a negatively charged species, under the conditions of use of the composition of the invention (for example the medium or the pH) and not comprising any cationic charge.

[0285] The anionic surfactants which can be used in the invention are different from the polymers b) as described previously.

[0286] The anionic surfactants may be sulfate, sulfonate and / or carboxylic (or carboxylate) type surfactants. It goes without saying that a mixture of these surfactants may be used.

[0287] It is understood in this description that:

[0288] - the carboxylate anionic surfactants comprise at least one function because carboxylic or carboxylate (-COOH or -COO) and may optionally also include one or more sulfate and / or sulfonate functions;

[0289] - the anionic sulfonate surfactants comprise at least one sulfonate function (-SO3H or -SO3) and may optionally also include one or more sulfate functions, but do not include any carboxylate functions; and

[0290] - the sulfate anionic surfactants comprise at least one sulfate function but do not include any carboxylate or sulfonate functions.

[0291] The anionic sulfate surfactants which can be used comprise at least one sulfate function (-OSO3H or -OSO3).

[0292] They can be chosen from the following compounds: alkyl sulfates, alkyl ether sulfates, alkylamidoether sulfates, alkylaryl polyether sulfates, monoglyceride sulfates; as well as the salts of these compounds.

[0293] The alkyl groups of these compounds contain from 6 to 30 carbon atoms, in particular from 8 to 28, better still from 10 to 24 or even from 12 to 22 carbon atoms; the aryl group preferably denotes a phenyl or benzyl group.

[0294] These compounds are optionally polyoxyalkylenated, in particular polyoxyethylenated, and then preferably comprise from 1 to 50 ethylene oxide units and better still from 2 to 10 ethylene oxide units.

[0295] When the anionic surfactant is in saline form, said salt may be chosen from alkali metal salts, such as sodium or potassium salt, salts ammonium, amine salts and in particular amino alcohol salts, and alkaline earth metal salts, such as the magnesium salt.

[0296] Among the amino alcohol salts which may be mentioned, mention may be made of monoethanolamine, diethanolamine and triethanolamine salts, monoisopropanolamine, diisopropanolamine or triisopropanolamine salts, 2-amino-2-methyl-1-propanol salts, 2-amino-2-methyl-1,3-propanediol salts and tris(hydroxymethyl)aminomethane salts.

[0297] Alkali or alkaline earth metal salts, and in particular sodium or magnesium salts, are preferably used.

[0298] More preferably, the anionic surfactant(s) is (are) chosen from anionic surfactants of alkyl(ether) sulfate type, and better still from C12-C16 alkyl(ether) sulfate salts, and in particular lauryl ether sulfate salts.

[0299] Suitable anionic surfactants in the composition of the present invention may be oxyethylenated and then preferably comprise from 1 to 50 ethylene oxide units.

[0300] Preferably, the anionic surfactant(s) is (are) present in a total amount ranging from 0.1% to 40% by weight, preferably from 0.5% to 30%, more preferably from 1% to 25% by weight, even more preferably is greater than or equal to 5% by weight, better still from 5% to 20% by weight, even better still from 10 to 15% by weight, relative to the total weight of the composition.

[0301] Preferably, when the one or more anionic surfactants is (are) chosen from those of alkyl(ether) sulfate type, the one or more surfactants of alkyl(ether) sulfate type is (are) present in a total amount ranging from 0.1% to 40% by weight, preferably from 0.5% to 30%, more preferably from 1% to 25% by weight, even more preferably is greater than or equal to 5% by weight, better still from 5% to 20% by weight, even better still from 10 to 15% by weight, relative to the total weight of the composition.

[0302] Preferably, when the one or more anionic surfactants is (are) chosen from C12-C14 alkyl(ether) sulfate salts, the one or more C12-C14 alkyl(ether) sulfate salts are present in a total amount ranging from 0.1% to 40% by weight, preferably from 0.5% to 30%, more preferably from 1% to 25% by weight, more preferably still greater than or equal to 5% by weight, better still from 5% to 20% by weight, better still from 10 to 15% by weight, relative to the total weight of the composition.

[0303] Preferably, when the one or more anionic surfactants is (are) chosen from lauryl ether sulfate salts, the one or more lauryl ether sulfate salts is (are) present in a total amount ranging from 0.1% to 40% by weight, preferably from 0.5% to 30%, more preferably from 1% to 25% by weight, still more preferably is greater than or equal to 5% by weight, better still from 5% to 20% by weight, even better still from 10 to 15% by weight, relative to the total weight of the composition.

[0304] Amphoteric or zwitterionic surfactants

[0305] Preferably, the composition according to the invention further comprises one or more amphoteric or zwitterionic surfactants.

[0306] Amphoteric or zwitterionic surfactants are different from the polymers b) described above.

[0307] The amphoteric or zwitterionic surfactant(s) which may be used in the present invention may in particular be secondary or tertiary aliphatic amine derivatives, optionally quaternized, in which the aliphatic group is a linear or branched chain containing from 8 to 22 carbon atoms, said amine derivatives containing at least one anionic group, for example a carboxylate, sulfonate, sulfate, phosphate or phosphonate group.

[0308] More preferably, the amphoteric or zwitterionic surfactant(s) is (are) chosen from (C8-C20 alkyl)betaines such as cocoylbetaine, (C8-C20 alkyl)amido(C2-C8 alkyl)betaines such as cocoylamido-pro-pylbetaine, and mixtures thereof.

[0309] Preferably, the one or more amphoteric or zwitterionic surfactants is (are) present in a total amount ranging from 0.01% to 25% by weight, preferably from 0.1% to 20%, more preferably from 0.5% to 15% by weight, better still from 0.75% to 10% by weight, even better still from 1 to 5% by weight, relative to the total weight of the composition.

[0310] The composition according to a preferred embodiment of the invention comprises one or more anionic surfactants and one or more amphoteric or zwitterionic surfactants, as described previously.

[0311] Preferably, according to this embodiment, the composition comprises

[0312] - one or more alkyl(ether) sulfate type surfactants, in particular C12-C14 alkyl(ether) sulfate salts such as lauryl ether sulfate salts, and

[0313] - one or more amphoteric or zwitterionic surfactants chosen from (alkyl (C8-C2o)betaines such as cocoylbetaine, (C8-C20 alkyl)amido(C2-C8 alkyl)betaines such as cocoylamido-propylbetaine, and mixtures thereof.

[0314] Preferably, the total amount of surfactants varies from 0.1% to 40% by weight, preferably from 0.5% to 30% by weight and more preferably from 1% to 25% by weight, better still from 5 to 20% by weight relative to the total weight of the composition.

[0315] Preferably, the composition according to the invention is a cosmetic composition, more preferably a hair care composition such as a hair composition for cleaning and / or conditioning the hair.

[0316] Optionally, the composition of the invention may also contain various additives conventionally used in hair compositions.

[0317] Among the additives which may be used in accordance with the invention, mention may be made of anionic or non-ionic polymers, anti-dandruff agents, anti-seborrheic agents, agents for preventing hair loss and / or for promoting hair regrowth, fatty substances, vitamins and provitamins, including panthenol, sunscreens, mineral or organic pigments, direct dyes, sequestrants, plasticizers, solubilizers, acidifiers, mineral or organic thickeners, in particular polymers, opacifiers or pearlescent agents, antioxidants, hydroxy acids, perfumes and preservatives, and mixtures thereof.

[0318] It goes without saying that a person skilled in the art will take care to choose this or these optional additives in such a way that the advantageous properties intrinsically associated with the composition in accordance with the invention are not, or are not substantially, affected by the addition(s) envisaged.

[0319] The present invention also relates to a method for treating keratinous fibers, preferably for washing and / or conditioning keratinous fibers such as hair, comprising a step of applying to the keratinous fibers a composition as described above.

[0320] Optionally, after the application step, the composition according to the invention is removed after an optional downtime.

[0321] The application time of the composition on the keratinous fibers can vary from a few seconds to 15 minutes, better still from 5 seconds to 10 minutes and even better still from 10 seconds to 5 minutes.

[0322] According to one embodiment of the invention, the keratinous fibers are not rinsed after application to the keratinous fibers of the composition according to the invention, preferably within 8 hours following application.

[0323] The composition can be applied to wet or dry keratin fibers; preferably to wet keratin fibers.

[0324] The composition may be a shampoo, a conditioner or a hair mask.

[0325] Finally, the present invention relates to the use of a composition as described above for washing and / or conditioning keratinous fibers, preferably hair.

[0326] In the above description, all preferred embodiments with respect to the components can be used individually or in combination.

[0327] The following examples serve to illustrate the invention. Examples:

[0328] In the following examples and unless otherwise indicated, the quantities are given as a percentage by weight of active ingredient (AI) relative to the total weight of the composition.

[0329] Example 1: Preparation of an oil-in-water emulsion

[0330] 450 g of amino silicone fluid (copolymer of trimethylsilyl-terminated aminoethyl-aminopropylmethylsiloxane - dimethyl-siloxane with an amine number of 7.2 mg KOH / g of sample, and a viscosity of 5,600 mPa.s at 25°C) were introduced into an emulsion tank. Stirring was started and 1.800 g of trimethylsilyl-terminated dimethylsiloxane polymer, with a viscosity of 61,500 mPa.s at 25°C, was introduced under stirring into the same tank. The two fluids were mixed for 2 hours at room temperature.

[0331] In a separate tank, 49 g of steareth-6 and 62 g of PEG-100 stearate were introduced and heated to 60°C. The temperature was maintained until both emulsifiers became liquid. Then, 31 g of trideceth-3 and 350 g of trideceth-10 (80% of the active ingredient) were added. This mixture of non-ionic emulsifiers had an HLB value = 11.25.

[0332] Then, 80 g of water and 6.2 g of glacial acetic acid were added to the tank and mixing began. Mixing was continued until the entire mass became a creamy paste. The entire paste was introduced into the emulsion tank. Homogenization was carried out for 30 minutes at room temperature. 79.6 g of demineralized water was added and homogenization was carried out for 60 minutes. 72.7 g of demineralized water was added and homogenization was carried out for 50 minutes. 197.4 g of demineralized water was added and homogenization was carried out for 5 minutes. 294.3 g of demineralized water was added and homogenization was carried out for 5 minutes. 180 g of demineralized water was added and homogenization was carried out for 5 minutes. 180 g of demineralized water was added and homogenization was carried out for 5 minutes.197.4 g of demineralized water was added and homogenization was carried out for 5 minutes. 197.4 g of demineralized water was added and homogenization was carried out for 3 minutes. 228.5 g of demineralized water was added and homogenization was carried out for 3 minutes. Finally, 40.5 g of 2-phenoxyethanol was added as a biocide and homogenization was carried out for 3 minutes. .

[0333] A stable oil-in-water emulsion having a D50 particle size of 170 nm was obtained.

[0334] Example 2:

[0335] The following compositions A and B according to the invention were prepared from the ingredients indicated in Table 1 below (% by weight of active material). [Tables 1] Ingredients Composition A Composition B Coco-betaine 1.5 1.5 Sodium laureth sulfate 13.9 13.9 Carbomer 0.2 0.2 Acrylamidopropyltrimonium chloride / acrylamidopropyltrimonium copolymer 0.045 (D 0.1 (2) Hydroxypropyl guar hydroxypropyltrimonium chloride - 0.5 (3) Guar hydroxypropyltrimonium chloride 0.105 (D - Polyquaternium-7 0.5 0.5 Dimethicone (and) Amodimethicone (and) Trideceth-10 (and) PEG-100 Stearate (and) Steareth-6 (and) Trideceth-3 (from Example 1) 4% of the emulsion, i.e. 0.4% AM amodimethicone + 1.6% AM dimethicone 4% of the emulsion, i.e. 0.4% AM Amodimethicone + 1.6% AM Dimethicone Glycerin 0.5 0.5 Hexylene glycol 0.5 0.5 PEG-120 methylglucose dioleate 0.25 0.25 PEG-150 distearate 0.25 0.25 Glycol distearate 1.6 1.6 Preservatives qs qs Water Qs 100 Qs 100

[0337] (1) Introduced as 0.15% by weight of the commercial product N-HANCE 4572 from Ashland, which is a 70 / 30 blend of guar hydroxypropyltrimonium chloride and acrylamidopropyltrimonium chloride / acrylamide copolymer.

[0338] (2) N-DURHANCE AA2000 from Ashland

[0339] (3) Jaguar Cl62 from Solvay

[0340] The silicone deposition of the above composition A was evaluated on strands of natural Indian hair and natural Caucasian hair.

[0341] The evaluation was carried out with the Thermofisher WDXRF Optim'x XRF system (wavelength dispersion). The principle is based on the characteristic radiation emissions of the chemical element, produced by the impact of high-energy photons emitted by an X-ray tube.

[0342] Operational parameters:

[0343] - Helium - argon / methane gas flow (90 / 10)

[0344] - X-ray tube (Rh), PET Crystal and FPC detector

[0345] - Voltage 25kv- 2mA

[0346] - 3 measures / strand = 60 / measure

[0347] - Minimum sample size 250 mg (2 mm pieces)

[0348] Protocol: 0.4g of composition was applied per 1g of hair strand. The Shampoo was massaged 6 times using fingers from root to tip, to generate lather. The strand was then rinsed under running water (25°C) for 10 seconds. The strand was then dried at 45°C in an oven.

[0349] The silicone deposition of composition A on the keratin fibers was measured after 5 applications.

[0350] The results obtained are detailed in Table 2 below.

[0351] [Tables2] Highlights Average Silicone Deposit (ppm) Natural Indian Hair 4532 + 31 Natural Caucasian Hair 1211+ 06

[0352] Composition A according to the invention leads to a substantial deposition of silicone on both types of hair.

Claims

Claims

1. A composition comprising: a) an oil-in-water emulsion having a D50 particle size of less than 350 nm and comprising: - a silicone blend comprising (i) a trialkylsilyl-terminated dialkylpolysiloxane having a viscosity of 40,000 to less than 100,000 mPa.s at 25°C and (ii) an amino silicone having a viscosity of 1,000 to 15,000 mPa.s at 25°C and an amine number of 2 to 10 mg of KOH per gram of amino silicone, - an emulsifier blend comprising one or more non-ionic emulsifiers, wherein the emulsifier blend has an HLB value of 10 to 16, and - water; b) one or more polymers comprising one or more cationic or quaternized acrylamide and / or methacrylamide units; c) one or more cationic polysaccharides; and d) one or more polymers containing alkyldiallylamine and / or dialkyldiallylammonium units.

2. Composition according to claim 1, in which the trialkylsilyl-terminated dialkylpolysiloxane (i) is of formula (IX): R'3SiO(R'2SiO)pSiR'3 in which: - R', identical or different, is a monovalent hydrocarbon radical having from 1 to 18 carbon atoms, preferably from 1 to 6 carbon atoms, and - p is an integer between 500 and 2,000, preferably between 1,000 and 2,000; and is preferably a trimethylsilyl-terminated polydimethylsiloxane.

3. Composition according to any one of the preceding claims, in which the aminosilicone (ii) is of formula (X): XR2Si(OSiAR)n(OSiR2)mOSiR2X in which: - R, identical or different, is a monovalent hydrocarbon radical having from 1 to 18 carbon atoms, preferably from 1 to 6 carbon atoms, - X, identical or different, is R or a hydroxyl group (OH) or a C1-C6 alkoxy group; preferably, X is R, - A represents an amino radical of formula -R'-[NR2-R3-]XNR22, or the protonated amino forms of this amino radical, in which R1 represents a C1-C6 alkylene radical, preferably a radical of formula -CH2 CH2CH2- or -CH2CH(CH3)CH2-, R2, identical or different, represents a hydrogen atom or a C1-C4 alkyl radical, preferably a hydrogen atom, R3 represents a C1-C6 alkylene radical, preferably a radical of formula -CH2CH2-, and x is equal to 0 or 1; And - m+n is an integer between 50 and approximately 1,000, preferably between 50 and 600; preferably A is an amino radical of formula -R'-[NR2-R3-]XNR22, or the protonated amino forms of said amino radical, in which R1 is -CH2CH2CH2- or -CH2CH(CH3)CH2-, R2 are hydrogen atoms, R3 is -CH2CH2-, and x is equal to 1.

4. A composition according to any preceding claim, wherein said mixture of emulsifiers comprises one or more non-ionic emulsifiers selected from: (i) polyoxyalkylene alkyl ethers, in particular (poly)ethoxylated fatty alcohols of formula: R3-(OCH2CH2)cOH with: - R3 representing a linear or branched C8-C40 alkyl or alkenyl group, preferably a C8-C30 alkyl or alkenyl group, optionally substituted by one or more hydroxyl groups, and - c being an integer between 1 and 200 inclusive, preferably between 2 and 150; and more particularly fatty alcohols comprising from 8 to 22 carbon atoms, oxyethylenated with 1 to 30 moles of ethylene oxide (1 to 30 EO); (ii) polyoxyalkylene alkyl (C8-C32) phenyl ethers; (iii) polyoxyalkylene sorbitan (C8-C32) fatty acid esters, in particular polyethoxylated sorbitan fatty acid esters preferably containing from 2 to 40 ethylene oxide units, preferably from 2 to 20 ethylene oxide units; preferably polyoxyethylenated sorbitan (C10-C24) fatty acid esters preferably containing from 2 to 40 ethylene oxide units, preferably from 2 to 20 ethylene oxide units; and; (iv) polyoxyethylenated fatty acid esters (C8-C32) containing, for example, from 2 to 150 moles of ethylene oxide; preferably the esters

5. of polyoxyethylenated fatty acids (C10-C24) containing for example from 2 to 150 moles of ethylene oxide. Composition according to any one of the preceding claims, in which the polymer(s) comprising one or more cationic or quaternized acrylamide and / or methacrylamide units is (are) chosen from homopolymers or copolymers comprising at least one of the units of the following formulas: Rs (II) Rt (III)

6. in which: - Rb which may be identical or different, denote a hydrogen atom or a CH3 radical; - R, identical or different, denote a linear or branched C1-C12 alkyl radical, preferably a linear C1-C6 alkyl radical, optionally substituted by one or more hydroxyl radicals; - R5, R6 and R7, identical or different, denote a linear or branched C1-C18 alkyl radical, or a benzyl radical, preferably a linear or branched C1-C6 alkyl radical; - R8 and Rç), identical or different, denote a hydrogen atom or a linear or branched C1-C6 alkyl radical, preferably methyl or ethyl; and - Y denotes an anion derived from a mineral or organic acid or from a halide, preferably a bromide, chloride, acetate, borate, citrate, tartrate, bisulfate, bisulfite, methosulfate, sulfate or phosphate anion. Composition according to any one of the preceding claims, in which the polymer(s) comprising one or more cationic or quaternized acrylamide and / or methacrylamide units is (are) chosen from: - (meth)acrylamido(C1-C6 alkyl)tri(C1-C4 alkyl)ammonium halide / (meth)acrylamide copolymers, preferably chloride copolymers

7.

8. (meth)acrylamidopropyltrimonium / (meth)acrylamide, and more preferably acrylamidopropyltrimonium chloride / acrylamide copolymers, - (meth)acrylamido(C1-C6 alkyl)tri(C1-C4 alkyl)ammonium halide / (meth)acrylamide / (meth)acrylic acid terpolymers, preferably (meth)acrylamidopropyltrimonium chloride / (meth)acrylamide / (meth)acrylic acid terpolymers, more preferably acrylamide / methacrylamidopropyltrimethylammonium chloride / acrylic acid terpolymers, - terpolymers of (meth)acrylamido(C1-C6 alkyl)tri(C1-C4 alkyl) ammonium halide / C1-C6 alkyl (meth)acrylate / (meth)acrylic acid, preferably terpolymers of (meth)acrylamidopropyltrimonium chloride / C1-C6 alkyl (meth)acrylate / (meth)acrylic acid; more preferably terpolymers of acrylic acid / methylacrylamidopropyl-trimethyl-ammonium chloride / methyl acrylates, and mixtures thereof. Composition according to any one of the preceding claims, in which the cationic polysaccharide(s) c) is (are) chosen from cationic celluloses, cationic galactomannan gums, and mixtures thereof; preferably from cellulose ether derivatives comprising quaternary ammonium groups, guar gums comprising cationic trialkylammonium groups, and mixtures thereof; more preferably from cationic galactomannan gums, better still from guar gums comprising cationic trialkylammonium groups. Composition according to any one of the preceding claims, in which the polymer(s) d) containing alkyldial-lylamine and / or dialkyldiallylammonium units are chosen from homopolymers and copolymers comprising units corresponding to formulas (I) or (II) below: z, (CHjk -{Cfyt------------“““CR.., 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 R11b, independently of each other, denote a C1-C6 alkyl group, a C1-C5 hydroxyalkyl group, a C1-C4 amidoalkyl group; or R10 and Ru may denote together, with the nitrogen atom to which they are attached, a heterocyclic group such as piperidinyl or morpholinyl; R10 and Ru, independently of each other, preferably denote a C1-C4 alkyl group; - Y is an anion such as bromide, chloride, acetate, borate, citrate, tartrate, bisulfate, bisulfite, sulfate or phosphate; and preferably from copolymers of diallyldimethylammonium salts and acrylamide such as in particular copolymers of diallyldimethylammonium chloride and acrylamide.

9. Composition according to any one of the preceding claims, characterized in that it further comprises one or more anionic surfactants; preferably chosen from anionic surfactants of alkyl(ether) sulfate type; more preferably from C12-C14 alkyl(ether) sulfate salts; better still from lauryl ether sulfate salts.

10. A method of treating keratinous fibers, preferably for washing and / or conditioning the keratinous fibers, comprising applying to the keratinous fibers a composition according to any one of the preceding claims.