COMPOSITION IN THE FORM OF AN OIL-IN-WATER EMULSION TO REVITALIZE HAIR

Abstract

COMPOSITION IN THE FORM OF AN OIL-IN-WATER EMULSION FOR HAIR REVITALIZATION The present invention relates to a hair revitalizing composition in the form of an oil-in-water emulsion comprising: a) at least one compound selected from water-soluble silicones and their derivatives; b) at least one non-carboxylic anionic thickener; and c) at least 20% by weight of at least one oil, relative to the total weight of the composition. The present invention also relates to a hair revitalization process comprising applying the composition as described above to the hair. Figure for abstract: none

Description

Title of the invention: OIL-IN-WATER EMULSION COMPOSITION FOR REVITALIZING HAIR Technical field

[0001] The present invention relates to a hair conditioning composition. In particular, the present invention relates to a hair conditioning composition in the form of an oil-in-water emulsion. The present invention also relates to a hair conditioning process. STATE OF THE ART

[0002] Hair is generally damaged and weakened by the action of external atmospheric agents such as light, weather conditions and / or the action of mechanical or chemical treatments such as brushing, combing, dyeing, bleaching, perming and / or straightening.

[0003] There are many products developed to revitalize hair.

[0004] Hair oils and leave-in conditioners are the major products in the leave-in category, while hair oils are the largest and most popular leave-in products among consumers due to their high cosmetic effect and shine, although consumers are concerned about their greasy feel. Some consumers have preferred leave-in conditioners because of their lightweight feel.

[0005] There is therefore a need for a leave-in product that can deliver good revitalizing effects, shine and a feeling of lightness to the hair.

[0006] It is also desired that the product be stable. Summary of the invention

[0007] An object of the present invention is therefore to develop a leave-in product to revitalize hair, which is stable and can provide hair with good revitalizing effects, shine and a feeling of lightness.

[0008] Another object of the present invention is to propose a hair revitalization process.

[0009] Thus, according to a first aspect, the present invention proposes a composition in the form of a hair revitalizing emulsion comprising: a. at least one compound selected from water-soluble silicones and their derivatives; b. at least one non-carboxylic anionic thickener; and c. at least 20% by weight of at least one oil, relative to the total weight of the composition.

[0010] The composition of the present invention is in the form of an oil-in-water emulsion. Thus, said composition comprises a continuous aqueous phase and a dispersed oily phase.

[0011] The inventors have now discovered that the composition of the present invention is stable and can provide hair with high revitalization, shine and a feeling of lightness.

[0012] According to a second aspect, the present invention proposes a hair revitalization process comprising the application of the composition as described above to the hair.

[0013] Other subjects and features, aspects and advantages of the present invention will become even clearer upon reading the detailed description and examples that follow. DETAILED DESCRIPTION OF THE INVENTION

[0014] In this document, unless otherwise indicated, the limits of a range of values ​​are included in that range, in particular in the expressions "between...and..." and "from...to...".

[0015] In this document, the term "including" should be interpreted as encompassing all the features specifically mentioned as well as optional, additional, unspecified features.

[0016] As used herein, the use of the term "comprising" also discloses the embodiment in which no features other than the features specifically mentioned are present (i.e., "consisting of").

[0017] Unless otherwise defined, all technical and scientific terms used in this document have the meaning commonly accepted by a person skilled in the art of the present invention. Where the definition of a term in this description conflicts with the meaning commonly accepted by a person skilled in the art of the present invention, the definition described in this document shall prevail.

[0018] Unless otherwise specified, all numerical values ​​expressing a quantity of ingredients and other substances used in the description and claims shall be understood as modified by the term "approximately". Therefore, unless otherwise stated, the numerical values ​​and parameters described in this document are approximate values ​​that may be modified according to the desired performance as required.

[0019] In this document, the expression "at least one" used in this description is equivalent to the expression "one or more".

[0020] According to the first aspect, the composition of the present invention is an oil-in-water emulsion and comprises:

[0021] a) at least one compound selected from water-soluble silicones and their derivatives;

[0022] b) at least one non-carboxylic anionic thickener; and

[0023] c) at least 20% by weight of at least one oil, relative to the total weight of the composition.

[0024] Compounds selected from water-soluble silicones and their derivatives

[0025] According to the first aspect, the composition of the present invention comprises at least one compound selected from water-soluble silicones and their derivatives.

[0026] In one embodiment, the (a) compound is selected from water-soluble silicones.

[0027] Water-soluble silicones have a solubility in water, measured at 25 °C, of ​​at least 0.5% by weight. If the final appearance of the water in which a silicone in question is mixed to a certain concentration is transparent or clear, it is determined that the silicone has solubility at that concentration. Thus, water-soluble silicone as (a) compound can be solubilized in water such that the concentration of water-soluble silicone in the water is 0.5% by weight or more.

[0028] Silicone oils can be selected from polysiloxanes comprising at least one terminal or pendant monovalent polyoxyalkylene group, which can be classified as polyoxyalkylene-modified silicones or polyether-modified silicones. The polysiloxanes may be polydimethylsiloxane.

[0029] Polyoxyalkylene-modified silicones or polyether-modified silicones can be represented by formula (1):

[0030] R23SiO(R22SiO)p(R2PESiO)qSiR23 (1)

[0031] in which:

[0032] the R2 radicals, which are identical or different, designate a monovalent hydrocarbon radical chosen from among the alkyl, aryl and aralkyl radicals having at most 10 carbon atoms;

[0033] p varies from 0 to 150, preferably from 0 to 100 and more preferably from 0 to 30;

[0034] q varies from 1 to 12, preferably from 1 to 10 and more preferably from 1 to 8;

[0035] The PE group polyether corresponds to the following formula (2):

[0036] -CxH2x(OC2H4)y(OC3H6)zOR3 (2)

[0037] in which:

[0038] x varies from 1 to 8 and preferably varies from 2 to 4 and is more preferably equal to 3;

[0039] y is greater than 0;

[0040] z is greater than or equal to 0; the values ​​of y and z being such that the molecular weight The total polyoxyalkylene portion of the PE polyether group varies from 200 to 10000 and more preferentially from 350 to 4000;

[0041] R3 designates hydrogen, a CrC8 alkyl group or a C2-C8 acyl group.

[0042] It should be noted that, when z is different from 0, the polyoxyethylene and polyoxypropylene motifs may be randomly distributed along the PE polyether chain or distributed in sequences or distributed both in sequences and randomly.

[0043] Preferably, the R2 radicals are chosen from C1-C4 alkyl groups and hexyl, phenyl, and benzyl groups. More particularly, the R2 radicals are chosen from alkyl groups, such as methyl, ethyl, or butyl groups. More specifically, they designate the methyl radical.

[0044] Preferably, the R3 radicals are chosen from among the Cr C4 alkyl groups and designate more particularly the methyl radical.

[0045] Water-soluble silicones of formula (1) can be obtained according to the process described in US patent document No. 4,847,398.

[0046] It is preferable to use, among the water-soluble silicones of formula (1), those of the following formula (1'):

[0047] Me3SiO(MeSiO)p(MePESiO)qSiMe3 (1')

[0048] in which

[0049] p and q have the same values ​​as those indicated above for formula (1),

[0050] Me designates the methyl radical, and

[0051] PE designates:

[0052] -(CH2)3(OC2H4)y(OC3H6) OR3 (2')

[0053] where

[0054] y and z have the same values ​​as those indicated above for formula (2), and

[0055] R3 designates hydrogen or an alkyl group in CrC4 and more particularly the methyl radical.

[0056] Mention may be made, as other families of water-soluble silicones which can be used according to the present invention, of branched silicones of the following formula (3):

[0057] (MeSiO)q.2[SiOMe2)p / qOPE]q (3)

[0058] where

[0059] p and q have the same values ​​as those indicated above in formula (1), Me means methyl and PE designates the group with the following formula (4):

[0060] -(OC2H4)y(OC3H6)zR3 (4)

[0061] where

[0062] y and z have the same values ​​as those indicated above in formula (2), and

[0063] R3 designates an alkyl group in CrC4 and more particularly the methyl radical.

[0064] It is of course possible to use a mixture of silicones of formula (1) and formula (3).

[0065] Ces silicones modifiés par polyéther sont vendus, par exemple, par OSI sous les noms commerciaux Silwet L-7210® (nom INCI : Dimethicone Copolyol), Silwet L-7220® (nom INCI : Dimethicone Copolyol) ; Silwet L-7002®, Silwet L-7600® (nom INCI : Dimethicone Copolyol), Silwet L-7604® (nom INCI : PEG-8 Dimethicone), Silwet L-7605®, Silwet L-7607®, Silwet 1614, Silwet L-7657®, Silwet L-7200® (nom INCI : Dimethicone Copolyol), Silwet L-7230®, Silsoft 305® (nom INCI : Dimethicone Copolyol), Silsoft 820® (nom INCI : Dimethicone Copolyol), Silsoft 880® (nom INCI : PEG-12 Dimethicone), Tego Wet 260®, Tego Wet 500®, Tego Wet 505® et Tego Wet 510®.

[0066] Examples of polyether-modified silicones include PEG-10 methyl ether dimethicone, PEG-11 methyl ether dimethicone, PEG-32 methyl ether dimethicone, PEG / PPG-18 / 18 dimethicone, PEG / PPG-19 / 19 dimethicone, PEG / PPG-20 / 20 dimethicone, PEG / PPG-20 / 22 butyl ether dimethicone, PEG / PPG-30 / 10 dimethicone, PEG-9 dimethicone, PEG-10 dimethicone, PEG-12 dimethicone and mixtures thereof.

[0067] In one embodiment, the (a) compound is selected from water-soluble silicone derivatives.

[0068] The water-soluble silicone derivative may be a water-soluble silicone in which at least one substituent is linked to the polysiloxane skeleton of the water-soluble silicone, preferably instead of a methyl group on the polydimethylsiloxane skeleton.

[0069] As a substituent, one can mention, for example, an alkyl group, an alkenyl group, an alkoxyl group, an amino group and a hydroxyl group.

[0070] The alkyl group may be linear, branched, or cyclic. The alkyl group may be linear or branched C1-C6 alkyl group, preferably a C1-C4 alkyl group, such as a methyl group, an ethyl group, a propyl group, an i-propyl group, or a butyl group. Alternatively, the alkyl group may be a cyclic C3-C6 alkyl group, such as a cyclopentyl group or a cyclohexyl group.

[0071] The alkenyl group may be a C2-C6 alkenyl group such as a vinyl group, an allyl group, a butylene group, a pentenyl group and a hexenyl group.

[0072] The alkoxy group can be a Ci-C6 alkoxy group such as a methoxy group, an ethoxy group and a propoxy group.

[0073] The above substituent may further be substituted by at least one group such as a halogen atom, an amino group, a nitro group, a cyano group, a hydroxyl group and an aromatic group such as a phenyl group.

[0074] By way of examples of water-soluble modified silicone derivatives, one can citing cetyl PEG / PPG-10 / 1 dimethicone, lauryl PEG / PPG-18 / 18 methicone and one of their mixtures.

[0075] In certain particularly preferred embodiments, the composition according to the present invention comprises PEG-11 methyl ether dimethicone.

[0076] In certain particularly preferred embodiments, the composition according to the present invention comprises PEG-11 methyl ether dimethicone.

[0077] Advantageously, the compound chosen from among water-soluble silicones and their derivatives is present in the composition of the present invention in an amount ranging from 0.01% by weight to 10% by weight, preferably from 0.02% by weight to 5% by weight, more preferably from 0.02% by weight to 3% by weight, most preferably from 0.03% by weight to 1% by weight, relative to the total weight of the composition. Non-carboxylic anionic thickeners

[0078] According to the first aspect, the composition of the present invention comprises at least one non-carboxylic anionic thickener.

[0079] For the purposes of the present invention, the term "non-carboxylic agent" means an agent which does not include any carboxylic acid (-COOH) or car-boxylate (-COO) function.

[0080] For the purposes of the present invention, the term “thickener” means a compound which increases the viscosity of a composition into which it is introduced at a concentration of 0.05% by weight relative to the total weight of the composition, by at least 20 cps, preferably by at least 50 cps, at room temperature (25 °C), at atmospheric pressure and at a shear rate of 1 s⁻¹ (the viscosity can be measured using a cone / plate viscometer, a Haake R600 rheometer or similar).

[0081] Preferably, the non-carboxylic anionic thickener(s) are chosen from non-carboxylic anionic polymers, more preferably from anionic polymers bearing one or more sulfonic groups.

[0082] For the purposes of the invention, the term "anionic polymer" means a polymer comprising one or more anionic or anionizable groups, and not comprising any cationic or cationizable group.

[0083] Advantageously, the non-carboxylic anionic thickener(s) are chosen from anionic polymers including at least one ethylenically unsaturated monomer bearing a sulfonic group, in free form or in partially or totally neutralized form.

[0084] These polymers can be crosslinked or non-crosslinked. They are preferentially crosslinked.

[0085] These polymers may be associative or non-associative, preferably non-associative.

[0086] It is recalled that "associative polymers" are polymers capable, in aqueous media, of reversibly associating with each other or with other molecules.

[0087] Their chemical structure includes more particularly at least one hydrophilic zone and at least one hydrophobic zone.

[0088] The term "hydrophobic group" refers to a radical or polymer with a saturated or unsaturated, linear or branched hydrocarbon chain comprising at least 8 carbon atoms, preferably from 10 to 30 carbon atoms, in particular from 12 to 30 carbon atoms and more preferably from 18 to 30 carbon atoms.

[0089] Preferably, the hydrocarbon group is derived from a monofunctional compound. For example, the hydrophobic group may be derived from a fatty alcohol such as stearyl alcohol, dodecyl alcohol, or decyl alcohol. It may also designate a hydrocarbon-based polymer, for example, polybutadiene.

[0090] The ethylenically unsaturated monomers bearing a sulfonic acid group are in particular selected from vinylsulfonic acid, styrenesulfonic acid, (meth)acrylamido(Ci-C22)alkylsulfonic acids, the acids N-(Ci-C22)alkyl(meth)acrylamido(Ci-C22)alkylsulfonics such as undecyla-crylamidomethanesulfonic acid, and also their partially or totally neutralized forms.

[0091] (Meth)acrylamido(Ci-C22)alkylsulfonic acids, for example acrylamidomethanesulfonic acid, acrylamidoethanesulfonic acid, acrylamidopropanesulfonic acid, 2-acrylamido-2-methylpropanesulfonic acid, methacrylamido-2-methylpropanesulfonic acid, 2-acrylamido-n-butanesulfonic acid, 2-acrylamido-2,4,4-trimethylpentanesulfonic acid, 2-Methacrylamidododecylsulfonic acid or 2-acrylamido-2,6-dimethyl-3-heptanesulfonic acid, and also their partially or totally neutralized forms, will be used more preferentially.

[0092] 2-Acrylamido-2-methylpropanesulfonic acid (AMPS), as well as its partially or totally neutralized forms, will be used in particular.

[0093] Among the copolymers of 2-acrylamido-2-methylpropanesulfonic acid, mention may be made of the partially or totally neutralized crosslinked copolymers of 2-acrylamido-2-methylpropanesulfonic acid and acrylamide; in particular, the product described in Example 1 of document EP 503 853 may be cited, and reference may be made to said document concerning these polymers.

[0094] We can also mention acid copolymers 2-acrylamido-2-methylpropanesulfonic acid or its salts and hydroxyethyl acrylate, such as the compound sold under the name Sepinov EMT 10 by the company SEPPIC (INCI name: hydroxyethylacrylate / sodium acryloyldimethyl taurate copolymer).

[0095] Associative AMPS polymers can in particular be selected from among the statistically associative AMPS polymers modified by reaction with a C6-C22 n-monoalkylamine or di-n-alkylamine, and such as those described in patent application WO 00 / 31154 (forming an integral part of the content of the description). These polymers may also contain other hydrophilic ethylenically unsaturated monomers selected, for example, from (meth)acrylic acids, such as their esters obtained with monoalcohols or mono- or polyalkylene glycols, (meth)acrylamides, vinylpyrrolidone, or mixtures of these compounds.

[0096] Preferred polymers of this family are chosen from among associative copolymers of AMPS and at least one ethylenically unsaturated hydrophobic monomer.

[0097] These same copolymers may also contain one or more ethylenically unsaturated monomers not comprising a fatty chain, such as (meth)acrylic acid derivatives in particular their esters obtained with monoalcohols or mono- or polyalkylene glycols, (meth)acrylamides, vinylpyrrolidone or mixtures of these compounds.

[0098] These copolymers are described in particular in patent application EP-A 750 899, US patent 5 089 578 and in the following publications by Yotaro Morishima: • Self-assembly amphiphilic polyelectrolytes and their nanostructures, Chinese Journal of Polymer Science, Vol. 18, no. 40, (2000), 323-336; • Micelle formation of random copolymers of sodium 2-(acrylamido)-2-methylpropanesulfonate and a nonionic surfactant macromonomer in water as studied by fluorescence and dynamic light scattering, Macromolecules, 2000, Vol. 33, No. 10 3694-3704; • Solution properties of micelle networks formed by nonionic moieties co-valently bound to a polyelectrolyte: know effects on rheological behavior -Langmuir, 2000, Vol. 16, no. 12, 5324-5332; • Stimuli responsive amphiphilic copolymers of sodium 2-(acrylamido)-2-methylpropanesulfonate and associative macromonomers, Polym. Preprint, Div. Polym. Chem. 40(2), (1999), 220-221.

[0099] Among these polymers, we can mention: • crosslinked or non-crosslinked, neutralized or non-neutralized copolymers comprising 15% to 60% by weight of AMPS motifs and 40% to 85% by weight of (C8-Ci6)alkyl(meth)acrylamide or (C8-Ci6)alkyl(meth)acrylate motifs relative to the polymer, such as those described in patent application EP-A750 899; • terpolymers comprising 10 mol% to 90 mol% of acrylamide motifs, 0.1 mol% to 10 mol% of AMPS motifs and 5 mol% to 80 mol% of n-(C6-Ci8)alkylacrylamide motifs, such as those described in US patent 5,089,578.

[0100] Other examples include copolymers of totally neutralized AMPS and dodecyl methacrylate, as well as crosslinked and non-crosslinked copolymers of AMPS and n-dodecylmethacrylamide, such as those described in the Morishima articles cited above. Preferably, the non-carboxylic anionic thickener is selected from an acrylamide / sodium acryloyl dimethyl taurate copolymer, a hydroxyethyl acrylate / sodium acryloyl dimethyl taurate copolymer, a sodium acrylate / sodium acryloyl dimethyl taurate copolymer, and mixtures thereof.

[0101] Most preferably, the composition according to the present invention comprises a sodium 2-acrylamido-2-methylpropanesulfonate / hydroxyethyl acrylate copolymer, for example, that sold by the company SEPPIC (INCI name hy-droxyethyl acrylate / sodium acryloyldimethyl taurate copolymer).

[0102] Advantageously, the non-carboxylic anionic thickener is present in the composition of the present invention in an amount ranging from 0.01% by weight to 5% by weight, preferably from 0.02% by weight to 3% by weight, more preferably from 0.05% by weight to 2.5% by weight, most preferably from 0.1% by weight to 1% by weight, relative to the total weight of the composition. Aqueous phase

[0103] As an oil-in-water emulsion, the composition of the present invention comprises a continuous aqueous phase.

[0104] Said aqueous phase is preferably present in an amount ranging from 10% by weight to 50% by weight, more preferably from 20% by weight to 45% by weight, relative to the total weight of the composition.

[0105] Water is preferably present in the composition of the present invention in an amount ranging from 10% by weight to 45% by weight, preferably from 20% by weight to 42% by weight, relative to the total weight of the composition.

[0106] The continuous aqueous phase may include water, at least one organic solvent miscible with water, or mixtures thereof.

[0107] Optionally, the continuous aqueous phase comprises at least one water-miscible organic solvent (at room temperature 25 °C) such as, for example, monoalcohols comprising 2 to 6 carbon atoms such as ethanol, isopropanol; polyols comprising 2 to 20 carbon atoms, preferably 2 to 10 carbon atoms, and preferably comprising 2 to 6 carbon atoms, such as glycerin, propylene glycol, butylene glycol, pentylene glycol, hexylene glycol, caprylyl glycol, dipropylene glycol, diethylene glycol; glycol ethers (having in particular from 3 to 16 carbon atoms) such as mono-, di- or tri-propylene glycol (Ci-C4)alkyl ethers, mono-, di- or tri-ethylene glycol (Ci-C4) alkyl ethers and their mixtures.

[0108] If present, the composition of the present invention comprises 10% by weight of 35% by weight of an organic solvent miscible with water mentioned above, relative to the total weight of the composition. Oily phase

[0109] As an oil-in-water emulsion, the composition of the present invention further comprises at least one dispersed oil phase.

[0110] The oily phase contains at least one oil, in particular a cosmetic oil. It may also contain other fatty substances.

[0111] The term "oil" refers to a non-aqueous compound that is immiscible with water and is liquid at room temperature (20 °C) and atmospheric pressure (760 mmHg).

[0112] Oils can be volatile or non-volatile.

[0113] The term "non-volatile" refers to an oil whose vapor pressure at ambient temperature and atmospheric pressure is non-zero and is less than 103 mmHg (0.13 Pa).

[0114] For the purposes of the invention, the term "volatile oil" means any oil which is capable of evaporating on contact with the skin in less than one hour, at room temperature and atmospheric pressure.

[0115] The oily phase may include hydrocarbon-based oils, silicone oils, or mixtures thereof.

[0116] They can be of animal, vegetable, mineral or synthetic origin.

[0117] For the purposes of the present invention, the expression "silicone oil" means an oil comprising at least one silicon atom and in particular, at least one Si-O group.

[0118] The expression "hydrocarbon-based oil" refers to an oil containing mainly hydrogen and carbon atoms.

[0119] For the purposes of the present invention, it is preferable that the hydrocarbon-based oil be an alkane.

[0120] The oils may optionally include atoms of oxygen, nitrogen, sulfur and / or phosphorus, for example in the form of hydroxyl or acid radicals.

[0121] Preferably, the oily phase comprises an oil selected from volatile hydrocarbon oils and non-volatile oils, such as silicone oil and ester oils.

[0122] More preferably, the oily phase comprises an oil selected from alkanes, such as isododecane; dimethicones; dimethiconols; alkyl methicones with the alkyl comprising 4 to 10 carbon atoms, such as caprylyl methicone and its mixture.

[0123] Advantageously, the oily phase is present in the composition of the present invention in an amount ranging from 20% by weight to 90% by weight, from 40% by weight to 90% by weight, from 50% by weight to 90% by weight, preferably from 55% by weight to 80% by weight, relative to the total weight of the composition of the present invention. Active cosmetic ingredients

[0124] Optionally, the composition of the present invention may include another cosmetic active ingredient for revitalizing hair, for example an amino acid, a hydrolyzed protein, sodium hyaluronate, etc.

[0125] If present, advantageously, the cosmetic active ingredient is present in an amount ranging from 0.001% to 5% by weight, preferably from 0.01% to 2% by weight, more preferably from 0.1% to 1% by weight, relative to the total weight of the composition. Adjuvants

[0126] The composition according to the present invention may also include an effective amount of other ingredients, such as perfumes, preservatives and so forth.

[0127] A person skilled in the art can choose the quantity of additional adjuvants so as not to have a negative impact on the final use of the composition according to the present invention.

[0128] According to a preferred embodiment, the present invention provides a composition in the form of an oil-in-water hair conditioning emulsion comprising, relative to the total weight of the composition:

[0129] a) from 0.02% by weight to 3% by weight of at least one compound selected from PEG-10 methyl ether dimethicone, PEG-11 methyl ether dimethicone, PEG-32 methyl ether dimethicone, PEG / PPG-18 / 18 dimethicone, PEG / PPG-19 / 19 dimethicone, PEG / PPG-20 / 20 dimethicone, PEG / PPG-20 / 22 butyl ether dimethicone, PEG / PPG-30 / 10 dimethicone, PEG-9 dimethicone, PEG-10 dimethicone, PEG-12 dimethicone, and a mixture of these;

[0130] b) from 0.05% by weight to 2.5% by weight of at least one non-carboxylic anionic thickener selected from an acrylamide / sodium acryloyl dimethyl taurate copolymer, a hydroxyethyl acrylate / sodium acryloyl dimethyl taurate copolymer and a sodium acrylate / sodium acryloyl dimethyl taurate copolymer; and

[0131] c) from 20% by weight to 90% by weight of at least one oil.

[0132] According to a more preferred embodiment, the present invention proposes a composition in the form of an oil-in-water hair conditioning emulsion comprising, relative to the total weight of the composition: a. from 0.03% by weight to 1% by weight of at least one compound selected from PEG-10 methyl ether dimethicone, PEG-11 methyl ether dimethicone, PEG-32 methyl ether dimethicone, PEG / PPG-18 / 18 dimethicone, PEG / PPG-19 / 19 dimethicone, PEG / PPG-20 / 20 dimethicone, PEG / PPG-20 / 22 butyl ether dimethicone, PEG / PPG-30 / 10 dimethicone, PEG-9 dimethicone, PEG-10 dimethicone, PEG-12 dimethicone, and a mixture of these; a. 0.1% by weight to 1% by weight of at least one non-carboxylic anionic thickener selected from an acrylamide / sodium acryloyl dimethyl taurate copolymer, a hydroxyethyl acrylate / sodium acryloyl dimethyl taurate copolymer, and a sodium acrylate / sodium acryloyl dimethyl taurate copolymer; and b. from 55% by weight to 80% by weight of at least one oil. Preparation and use

[0133] The composition according to the present invention can be prepared by a conventional process of preparing an oil-in-water emulsion in the art, for example, by mixing ingredients for the aqueous phase to prepare the aqueous phase, and by mixing ingredients for the oily phase to prepare the oily phase, and by introducing the oily phase into the aqueous phase.

[0134] The composition according to the present invention can be used as a leave-in or rinse-out conditioning product for hair care.

[0135] According to a second aspect, the present invention proposes a hair revitalization process comprising the application of the composition as described above to the hair. EXAMPLES

[0136] The following examples are given by way of illustration of the present invention and shall not be construed as limiting the scope.

[0137] The main raw materials used, trade names and their suppliers are listed in Table 1.

[0138] [Tables 1] INCI name Trade name Supplier PEG-11 METHYL ETHER DL METHICONE KF-6011 SHIN ETSU HYDROXYETHYL ACRYLATE / SODIUM ACRYLOYLDIMETHYL TAURATE COPOLYMER SEPINOV EMT 10 SEPPIC HYDROXYETHYL CELLULOSE NATROSOL 250 HHR CS ASHLAND XANTHAN GUM KELTROL CG CP KELCO BEHENTRIMONIUM CHLORIDE GENAMIN KDMP CLARIAN T LAURETH-23 SP BRU L23 MBAL-PA-(RB) CRODA DIMETHICONE DOWSIL SH 200 C FLUID 350 CST DOW DIMETHICONOL DOWSIL SH 200 C FLUID 350 CST DOW ISODODECANE ISODODECANE INEOS CAPRYLYL METHICON DOWSIL FZ-3196 FLUID DOW

[0139] Inventive Examples 1-2 and Comparative Examples 1-5

[0140] Compositions according to inventive example (El.) 1-2 and comparative examples (EC.) 1-5 were prepared with the ingredients listed in Table 2 (contents are expressed as weight percentages of ingredients relative to the total weight of each composition, unless otherwise stated).

[0141] [Tables2] Ingredients ELI EL2 EC.l EC.2 EC.2 EC.4 EC.5 HYDROXYETHYL ACRYLATE / SODIUM ACRYLOYLDIMETH YL TAURATE COPOLYMER 0.6 0.6 0.6 0.6 0.6 HYDROXYETHYL CELLULOSE 0.6 XANTHAN GUM 0.6 PEG-11 METHYL ETHER DL METHICONE 0.12 0.12 0.12 0.12 0.12 BEHENTRIMONIUM CHLORIDE 0.12 LAURETH-23 0.12 DIMETHICONE 11.1 3.7 1.85 11.1 11.1 11.1 11.1 DIMETHICONOL 4.95 1.65 0.75 4.95 4.95 4.95 4.95 ISODODECANE 28.5 9.5 4.75 28.5 28.5 28.5 28.5 CAPRYLYL METHICONE 15.89 5.3 2.65 15.89 15.89 15.89 15.89 WATER QS100 QS100 QS100 QS100 QS100 QS100 QS100

[0142] The composition of Inventive Examples 1-2 represents compositions according to the present invention.

[0143] The composition of comparative example 1 includes only 10% oil.

[0144] The composition of comparative example 2 comprises hydroxyethylcellulose in instead of at least one non-carboxylic anionic thickener.

[0145] The composition of comparative example 3 includes xanthan gum instead of at least one non-carboxylic anionic thickener.

[0146] The composition of comparative example 4 includes behentrimonium chloride instead of at least one compound selected from water-soluble silicones and their derivatives.

[0147] The composition of comparative example 5 includes laureth-23 instead of at least one compound selected from water-soluble silicones and their derivatives.

[0148] Preparation procedure:

[0149] Each composition was prepared as follows, taking as an example that of inventive example 1: • Dissolving PEG-11 Methyl Ethyl Methicone in water to obtain a mixture; and • dispersion of the HYDROXYETHYL ACRYLATE / SODIUM ACRYLOYLDIMETHYL TAURATE COPOLYMER in the mixture with stirring to obtain an aqueous phase; • a mixture of dimethicone, dimethiconol, isododecane and caprylyl methicone to obtain an oily phase; and • Slow introduction of the oil phase into the aqueous phase with agitation for 10 minutes to obtain the composition. Assessment

[0150] The compositions prepared above were evaluated in terms of stability, revitalizing effect, shine and feeling of lightness as follows. Stability

[0151] The stability of each composition of the inventive examples (El.) 1-2 and the comparative examples (EC.) 1-5 was evaluated by leaving the composition at 45°C for 2 months and then observing the appearance.

[0152] If the aqueous phase and the oily phase are separated after storage at 45°C for 2 months, the composition is not stable and the stability is evaluated as "FAILURE".

[0153] If the aqueous phase and the oily phase are not separated after storage at 45°C for 2 months, then the composition is stable and the stability is evaluated as "SUCCESS".

[0154] The stability results of each composition of the inventive examples (El.) 1-2 and the comparative examples (EC.) 1-5 are summarized in Table 3.

[0155] [Tables3] Property s EI.l EI.2 EC. 1 EC. 2 EC. 3 EC. 4 CE. 5 Stability PASS PASS FAIL C FAIL C FAIL C FAIL C

[0156] According to Table 3, it can be seen that the composition of inventive example 1 is stable.

[0157] Revitalizing effect, shine and feeling of lightness

[0158] The revitalizing effect, the shine and the lightness provided by each composition of the inventive example (IE.) 1-2 and the comparative examples (EC.) 1 were evaluated according to the protocol.

[0159] Strand: strand of moderately damaged Chinese hair (color treatment twice) (6 g)

[0160] Application: Apply to damp hair

[0161] Dosage: 0.12 g / wick

[0162] Evaluation of the hair panel: 2 scientists and 2 hairdressers

[0163] The scores were given according to the following standard:

[0164] Score 1: extremely unacceptable

[0165] Score 2: not acceptable

[0166] Score 3: acceptable

[0167] Score 4: Slightly preferred

[0168] Score 5: Highly preferred

[0169] The results are summarized in Table 4.

[0170] [Tables4] ELI Properties EI.2 EC.l Revitalizing effect 5 3 3 Feeling of lightness 3 4 5 Shine 5 3 2

[0171] It can be seen in Table 4 that the compositions of inventive examples 1-2 can provide the hair with a good combination of revitalizing effect, shine and feeling of lightness.

Claims

Claims

1. A composition in the form of an oil-in-water emulsion for conditioning hair comprising: a) at least one compound selected from water-soluble silicones and their derivatives; b) at least one non-carboxylic anionic thickener; and c) at least 20% by weight of at least one oil, relative to the total weight of the composition.

2. Composition according to claim 1, in which compound a) is chosen from water-soluble silicones, preferably chosen from polyether-modified silicones.

3. Composition according to any one of claims 1 or 2, in which the compound a) is chosen from silicones represented by the formula (1): R23SiO(R22SiO)p(R2PESiO)qSiR23(l) in which: the radicals R2, which are identical or different, denote a monovalent hydrocarbon radical chosen from alkyl, aryl and aralkyl radicals having at most 10 carbon atoms; p varies from 0 to 150, preferably from 0 to 100 and more preferably from 0 to 30; q varies from 1 to 12, preferably from 1 to 10 and more preferably from 1 to 8; the polyether group PE corresponds to the following formula (2): -CxH2x(OC2H4)y(OC3H6)zOR3 (2) in which: x varies from 1 to 8 and preferably varies from 2 to 4 and is more preferably equal to 3; y is greater than 0; z is greater than or equal to 0; the values ​​of y and z being such that the total molecular weight of the polyoxyalkylene portion of the polyether group PE varies from 200 to 10000 and more preferably from 350 to 4000;R3 denotes hydrogen, a C1-C8 alkyl group or a C2-C8 acyl group.;

4. Composition according to any one of claims 1 to 3, in which compound a) is chosen from PEG-10 methyl ether di-methicone, PEG-11 methyl ether dimethicone, PEG-32 methyl ether di- methicone, PEG / PPG-18 / 18 dimethicone, PEG / PPG-19 / 19 dimethicone, PEG / PPG-20 / 20 dimethicone, PEG / PPG-20 / 22 butyl ether dimethicone, PEG / PPG-30 / 10 dimethicone, PEG-9 dimethicone, PEG-10 dimethicone, PEG-12 dimethicone, and a mixture of these.

5. Composition according to any one of claims 1 to 4, in which the non-carboxylic anionic thickener is chosen from associative copolymers of AMPS and at least one ethylenically unsaturated hydrophobic monomer.

6. A composition according to any one of claims 1 to 5, wherein the non-carboxylic anionic thickener is selected from an acrylamide / sodium acryloyl dimethyl taurate copolymer, a hydroxyethyl acrylate / sodium acryloyl dimethyl taurate copolymer, a sodium acrylate / sodium acryloyl dimethyl taurate copolymer, and mixtures thereof.

7. A composition according to claim 6, wherein the oily phase comprises an oil selected from volatile hydrocarbon oils and non-volatile oils, such as silicone oil and ester oils, preferably the oily phase comprises an oil selected from alkanes; dimethicones; dimethiconols; and alkyl methicones with the alkyl comprising 4-10 carbon atoms.

8. A composition according to claim 1, comprising, relative to the total weight of the composition: a) from 0.03% by weight to 1% by weight of at least one compound selected from PEG-10 methyl ether dimethicone, PEG-11 methyl ether dimethicone, PEG-32 methyl ether dimethicone, PEG / PPG-18 / 18 dimethicone, PEG / PPG-19 / 19 dimethicone, PEG / PPG-20 / 20 dimethicone, PEG / PPG-20 / 22 butyl ether dimethicone, PEG / PPG-30 / 10 dimethicone, PEG-9 dimethicone, PEG-10 dimethicone, PEG-12 dimethicone, and a mixture thereof; b) from 0.1% by weight to 1% by weight of at least one non-carboxylic anionic thickener selected from acrylamide / sodium acryloyl dimethyl taurate copolymer, hydroxyethyl acrylate / sodium acryloyl dimethyl taurate copolymer and sodium acrylate / sodium acryloyl dimethyl taurate copolymer; and c) from 55% by weight to 80% by weight of at least one oil.

9. A composition according to any one of claims 1 to 8, which is a leave-in product.

10. A process for revitalizing hair comprising applying a composition as defined in any one of claims 1 to 9 on hair.