FR2922764A1 - Perfume composition, useful e.g. for perfuming human keratin materials, comprises a fragrance substance, a volatile alcohol and/or a volatile silicone oil, an amphiphilic copolymer and optionally water - Google Patents

Abstract

Perfume composition comprises: (a) at least a fragrance substance (1 wt.%); (b) at least a volatile alcohol and/or a volatile silicone oil; (c) at least an amphiphilic copolymer (optionally crosslinked) of partially or totally neutralized acrylamido 2-methyl propane sulfonic acid monomer (A), and at least a hydrophobic monomer (B); and (d) optionally water, in a medium.

Description

The invention relates to a perfuming composition comprising in a cosmetically acceptable medium: a) at least 1% by weight relative to the total weight of the composition of at least one fragrance substance; b) at least one volatile alcohol and / or a volatile silicone oil, c) at least one amphiphilic copolymer, crosslinked or non-crosslinked, of (A) acrylamido-2-methyl propane sulfonic acid monomer partially or totally neutralized and at least one at least one hydrophobic monomer (B); d) and possibly water.

We know that a perfume is the combination of different odorous substances that evaporate at different times. Each perfume has what is called a top note which is the odor that diffuses first when applying the perfume or when opening the container containing it, a heart or body note that corresponds to the complete perfume (emission for a few hours after the top note) and a bottom note that is the most persistent odor (emission for several hours after the heart note). The persistence of the base note corresponds to the persistence of the perfume.

The human being has always sought to perfume and perfume the objects that surround him or the places in which he is, and this, both to mask strong and / or unpleasant odors that to give a good smell .

Among the important quality criteria that are sought in perfuming products, on the one hand are the persistence of the perfume namely the persistence of the base note on the skin and on the other hand the transparency of the formulation as well as its fluid character for aesthetic reasons and comfort of application.

The improvement of the persistence of perfumes has been the subject of numerous studies. It has been proposed in various patents and patent applications of the prior art to use different types of polymers generally in perfuming hydroalcoholic solutions to improve perfume resistance.

Thus in the US6703011 patent, it is proposed a controlled release system of perfume by means of a permeable polymer film, continuous, non-porous, monophasic and without emulsifier. The polymer film acts as a barrier for the perfume that diffuses more slowly to the surrounding external environment. Among the polymers used are polymers of the LUVISKOL VA 55E, ULTRAHOLD 8, LUVIQUAT FC or HM type, ADVANTAGE PLUS, GAFQUAT 734N or 755N, DIAFORMERS, GAFQUAT HS-100, OMNIREZ 2000.

In the application WO2004 / 098556, it has been proposed to use in a hydroalcoholic support, homo or acrylic copolymers such as Carbomer, Pemulen or polyacryloyldimethyltaurate homopolymers or copolymers (AMPS) such as HOSTACERIN AMP or polymers of ethylene oxide to concentrate the perfume molecules on a smaller surface and to expand the diffusion of said perfume.

In FR2747306, it has been proposed to use a nonionic and non-cyclic hydrocarbon polymer comprising anhydroglucose and / or ethylene units in a perfume-containing composition for fixing and / or prolonged release of this perfume.

In the patent EP804924, it has been proposed to use an alkyl ether polysaccharide comprising at least two different units and at least one hydroxyl group substituted by a saturated C 1 -C 24 alkyl chain, in particular the ethylguar of degree of substitution in ethyl of at least 2 as commercial products AQUALON AQ-D3360-L and AQ-3360-H to increase the hold of a perfume.

In US Pat. No. 6,172,037 it has been proposed to increase the persistence of a perfume in a hydroalcoholic solution with a combination of a polyvinylpyrrolidone and a hydroxypropylcellulose.

In application WO2005 / 070371, it has also been proposed to use the combination of a carboxylated acrylate / octacrylamide copolymer and a hydrolysed jojoba ester in an alcoholic or aqueous-alcoholic composition in order to reduce the concentration of perfume, d to improve its resistance to the skin and its persistence in water or sweat.

Although these polymers as stated previously in the documents of the prior art make it possible to increase the persistence of the perfume, they generally have the disadvantage of substantially increasing the viscosity of the alcoholic lotions and / or rendering them cloudy, opalescent and / or to form precipitates in the solutions rendering them unsightly and unfit for consumption.

There remains the need to find new types of polymers to effectively increase the persistence of the perfume in a wide range of clear and fluid perfuming products such as eau de toilette, eau de parfum without the drawbacks mentioned above, namely without affecting the transparency, the stability, the viscosity of the perfuming composition and without harming the consumer's comfort such as smell or touch.

The Applicant has surprisingly discovered that this objective could be achieved by using an amphiphilic polymer of acrylamido-2-methyl propane sulfonic acid, partially or completely neutralized, crosslinked or non-crosslinked.

This discovery is the basis of the invention.

The invention relates to a perfuming composition comprising in a cosmetically acceptable medium: a) at least 1% by weight relative to the total weight of the composition of at least one perfume substance; b) at least one volatile alcohol and / or a volatile silicone oil; 2 c) at least one crosslinked or non-crosslinked amphiphilic copolymer of partially or totally neutralized acrylamido-2-methyl propane sulfonic acid (A) monomer; at least one hydrophobic monomer (B); d) and possibly water. The subject of the invention is also a cosmetic process for the perfuming of human keratinous materials and in particular of the skin, the lips and the integuments (hair, eyebrows, eyelashes), comprising the application to the keratin materials of the composition as defined herein. -above. The subject of the invention is also the use of a crosslinked or non-crosslinked amphiphilic copolymer, partially or totally neutralized acrylamido-2-methyl propane sulfonic acid (A) monomer and at least one hydrophobic monomer (B). in a perfuming composition: a) at least 1% by weight relative to the total weight of the composition of at least one perfuming substance; b) at least one volatile alcohol and / or a volatile silicone oil and optionally water, in order to increase the persistence of the perfume.

Perfume means any perfume or aroma likely to give off a pleasant odor.

Preferably, the amount of perfume substance (s) varies from 1 to 30% by weight, better still from 2 to 25% by weight relative to the total weight of the composition.

The term cosmetically acceptable medium in the composition of the invention means a non-toxic medium that can be applied to the skin (including the interior of the eyelids), the lips, the nails or the hair, the eyelashes and the eyebrows of human beings.

By volatile alcohol, any compound comprising at least one alcohol function having a vapor pressure at 20 ° C greater than 17.5 mm Hg.

For the purposes of the invention, the term "oil" means a fatty substance which is insoluble in water and which is liquid at ambient temperature and at atmospheric pressure. For the purposes of the invention, the term "volatile silicone oil" means any silicone compound capable of evaporating on contact with the skin or the keratin fiber in less than one hour at ambient temperature and atmospheric pressure. The volatile compound is a volatile cosmetic compound which is liquid at ambient temperature, in particular having a non-zero vapor pressure, at ambient temperature and atmospheric pressure, in particular having a vapor pressure ranging from 0.13 Pa to 40 000 Pa (10- 3 to 300 mm Hg), in particular ranging from 1.3 Pa to 13 000 Pa (0.01 to 100 mm Hg), and more particularly ranging from 1.3 Pa to 1300 Pa (0.01 to 10 mm Hg). Hg). As perfuming substance, it is possible to use perfumes and flavorings of natural or synthetic origin and their mixtures in the composition of the invention. As fragrances and aromas of natural origin, there may be mentioned for example the flower extracts (lily, lavender, rose, jasmine, ilang-ilang), stems and leaves 50 (patchouli, geranium, petit-grain), fruits (coriander, anise, cumin, juniper), 5 of fruit peel (bergamot, lemon, orange), roots (angelica, celery, cardamom, iris, acore), wood (pine wood, sandalwood, guaiac, cedar rose), herbs and grasses (tarragon, lemon grass, sage, thyme), needles and branches (spruce, fir, pine, dwarf pine), resins and balms (galbanum, elemi, benzoin, myrrh , oliban, opopanax).

Examples of perfume substances of synthetic origin are compounds of the ester, ether, aldehyde, ketone, aromatic alcohol and hydrocarbon type.

As esters, mention may be made in particular of benzyl acetate, benzyl benzoate, phenoxyethyl isobutyrate, p-tert-butylcyclohexyl acetate, citronellyl acetate, citronellyl formate, acetate of geranyl, linalyl acetate, dimethylbenzylcarbinyl acetate, phenylethyl acetate, linalyl benzoate, benzyl formate, ethylmethylphenyl glycinate, alkylcyclohexyl propionate, styralyl propionate and the like. benzyl salicylate.

As ethers, mention may be made of benzylethyl ether.

As aldehydes, there may be mentioned, for example, linear alkanals containing from 8 to 18 carbon atoms, citral, citronellal, citronellyloxyacetaldehyde, cyclamenaldehyde, hydroxycitronellal, lilial and bud.

As ketones, mention may be made, for example, of ionones such as alpha-isomethylionone and methylcedrylketone.

Among the aromatic and especially terpenic alcohols, mention may be made of anethole, citronellol, eugenol, isoeugenol, geraniol, linalool, phenylethylalcohol and terpineol. As hydrocarbons, there may be mentioned terpenes. These compounds are often in the form of a mixture of two or more of these odorous substances.

On the other hand, it is also possible to use essential oils, flavor components, such as, for example, essences of sage, chamomile, clove, lemon balm, mint, cinnamon leaves, linden flowers, juniper, vetiver, olibian, galbanum, labolanum and lavandin.

The fragrancing substance, alone or as a mixture, is preferably used with the essence of bergamot, dihydromyrcenol, lilial, lyral, citronellol, phenylethyl alcohol, alpha-hexylcinnamaldehyde, geraniol, benzylacetone, cyclamenaldehyde, linalool, ambroxane, indol, hedione, sandelice, essences of lemon, mandarin and orange, allylamine glycolate, cyclovertal, lavandin oil, Sage essence, betadamascone, geranium essence, cyclohexyl salicylate, phenylacetic acid, geranyl acetate, benzyl acetate, rose oxide.

According to a preferred embodiment of the invention, a mixture of 50 different perfuming substances is used which generates in common a pleasant note for the user. Among the known olfactory notes, mention may be made, for example, of citrus flavors, aromatics, floral perfumes, muskets, fruity perfumes, spices, oriental perfumes, marine perfumes, aquatic notes, chypre perfumes, perfumes. woody, ferns and their mixtures

Amps amphiphilic copolymers

The composition contains at least one crosslinked or non-crosslinked amphiphilic copolymer, partially or totally neutralized acrylamido-2-methyl propane sulfonic acid monomer (A) and at least one hydrophobic monomer (B), this copolymer being water-soluble or water-dispersible.

Furthermore, the term "water-soluble or water-dispersible copolymer" means a copolymer which, introduced into water at a concentration equal to 1% by weight, leads to a macroscopically homogeneous solution whose light transmittance, at a length of A wave equal to 500 nm, through a 1 cm thick sample, is at least 10%, which corresponds to an absorbance [abs = -log (transmittance)] less than 1.5.

The amphiphilic copolymers according to the invention generally have a number-average molecular weight ranging from 50,000 to 10,000,000, preferably from 100,000 to 8,000,000 and more preferably from 100,000 to 7,000,000.

The copolymers according to the invention are partially or completely neutralized with a mineral base (sodium hydroxide, potassium hydroxide, ammonia) or an organic base such as mono-, di- or tri-ethanolamine, an aminomethylpropanediol, N-methyl-glucamine, basic amino acids such as arginine and lysine, and mixtures thereof.

The amphiphilic copolymer used in the composition of the invention is capable of being obtained from the partially or completely neutralized acrylamido-2-methyl propane sulfonic acid (A) monomer and one or more hydrophobic monomers (B) containing ( i) an ethylenically unsaturated terminal group, (ii) a hydrophilic portion of the formula - (CH2CH2O) n10 (CH2CH (CH3) O) p wherein n and p, independently of one another, denote an integer ranging from 0 at 30, preferably from 1 to 25 and more preferably from 3 to 20 with the proviso that n + p is less than or equal to 30, preferably less than 25 and even more preferably less than 20, which means that n + p can go from 0 to 30, preferably from 0 to 25 and better still from 0 to 20, and (iii) a linear or branched, linear or branched C 1 H 2, + 1 aliphatic or cycloaliphatic moiety, where m is an integer ranging from 6 to 22 .

According to a particular embodiment of the invention, in the formula indicated above, the sum n + p is an integer equal to or greater than 1 (n + p 1).

The ethylenically unsaturated terminal group of the hydrophobic monomer B may be chosen especially from hydrophilic monomers containing ethylenic unsaturation, such as, for example, acrylic acid, methacrylic acid, acrylamide, methacrylamide, and mixtures thereof.

The hydrophobic part CmH2m + 1 comprises from 6 to 30 carbon atoms, preferably from 6 to 22 carbon atoms, more preferably from 6 to 18 carbon atoms and even more preferably from 12 to 18 carbon atoms. This hydrophobic part may be chosen for example from C 6 -C 30, preferably C 6 -C 18, linear (for example hexyl, octyl, decyl, dodecyl, hexadecyl, octadecyl, tetradecyl, oleyl), branched (for example isostearic) alkyl radicals. ) or cyclic (for example cyclododecane or adamantane). Among these hydrophobic radicals, linear and branched alkyl radicals are more particularly preferred. The hydrophobic monomers (B) of the polymer used according to the invention are preferably chosen from the acrylates of formula (I) below: (I) O = C

Wherein n and p, independently of one another, denote a number of moles and ranges from 0 to 30, preferably from 1 to 25, and more preferably from 0 to 30; from 3 to 20, provided that the sum n + p 1 and is less than or equal to 30, preferably less than 25 and more preferably less than 20; R1 denotes a hydrogen atom or a linear or branched C1-C6 alkyl radical (preferably methyl); and R denotes the radical CmH2m + 1 as defined above.

As indicated above, the amphiphilic copolymers may be crosslinked or uncrosslinked. According to a preferred embodiment of the invention, they are preferably uncrosslinked.

When the polymers are crosslinked, the crosslinking agents may be chosen from the olefinically polyunsaturated compounds commonly used for crosslinking the polymers obtained by radical polymerization. Examples of crosslinking agents that may be mentioned include divinylbenzene, diallyl ether, dipropylene glycol diallyl ether, polyglycol diallyl ethers, triethylene glycol dinyl ether, hydroquinone diallyl ether, tetraallyloxyethane, tetraethylene glycol diacrylate and triallylamine. trimethylolpropane diallyl ether, methylenebisacrylamide, allyl ethers of alcohols of the series of sugars, allyl methacrylate, trimethylol propane triacrylate (TMPTA) or mixtures thereof. The crosslinking agent is preferably chosen from methylenebisacrylamide, allyl methacrylate or trimethylol propane triacrylate (TMPTA).

The degree of crosslinking preferably ranges from 0.01 to 10 mol% and more particularly from 0.2 to 2 mol% relative to the polymer.

The copolymers of the invention may additionally contain one or more other hydrophilic ethylenically unsaturated monomers chosen, for example, from acrylic acid, methacrylic acid or their 13-substituted alkyl derivatives or their esters obtained with mono or polyalkylene glycols, acrylamide, methacrylamide, vinylpyrrolidone, itaconic acid, maleic acid and mixtures thereof.

The copolymers of the invention may furthermore contain one or more hydrophobic comonomers containing ethylenic unsaturation, comprising, for example: a fluorinated or alkylfluorinated C 6 -C 18 radical (for example the group of formula ## STR4 ## 9-CF3) - a cholesteryl radical or a radical derived from cholesterol (for example cholesteryl hexanoate) - an aromatic polycyclic group such as naphthalene or pyrene, - a silicone or alkylsilicone or alkylfluorosilicone radical.

According to one particular embodiment of the invention, the AMPS amphiphilic copolymers used are non-crosslinked polymers consisting of (A) of 1 to 20 mol% and preferably of 1 to 15 mol% of unit of formula of unit of formula (I) indicated above, and (B) 80 to 99 mol% and preferably 85 to 99 mol% of 2-acrylamido-2-methylpropanesulphonic acid unit of formula (II) below: CH 0 = C wherein X + is a proton, an alkali metal cation, an alkaline earth cation or the ammonium ion;

Particularly preferred polymers are obtained from AMPS units of formula (II) and units of formula (I) where p = 0; R, is the methyl radical (CH3); n 30 is an integer from 7 to 25 and R2 is a C1-C18 alkyl radical. The polymers for which X + in the formula (II) denotes sodium or ammonium are more particularly preferred.

The amphiphilic polymers used according to the invention can be obtained by conventional methods of radical polymerization in the presence of one or more initiators such as, for example, azobisisobutyronitrile (AIBN), azobisdimethylvaleronitrile, hydrochloride of 2.2. azobis- [2-amidinopropane] (ABAH = 2,2-AzoBis- [2-Amidinopropane] Hydrochloride), organic peroxides such as dilauryl peroxide, benzoyl peroxide, tert-butyl hydroperoxide, etc. ..., inorganic peroxidized compounds such as potassium persulphate or ammonium, or H2O2 optionally in the presence of reducing agents. The polymers may in particular be obtained by radical polymerization in tert-butanol medium in which they precipitate. By using precipitation polymerization in tert-butanol, it is possible to obtain a particle size distribution of the polymer which is particularly favorable for its uses.

The polymerization reaction may be conducted at a temperature between 0 and 150 ° C, preferably between 10 and 100 ° C, either at atmospheric pressure or under reduced pressure. It can also be carried out under an inert atmosphere, and preferably under nitrogen.

According to this process, the AMPS monomer of formula (II) has in particular been polymerized with X + denoting sodium or ammonium, with an ester of acrylic acid or of methacrylic acid and of C10-C18 alcohol oxyethylenated with 8 moles ethylene oxide (GENAPOL C-080 from the company HOECHST / CLARIANT), - oxo alcohol C 8 oxyethylenated with 8 moles of ethylene oxide (GENAPOL UD-080 from HOECHST / CLARIANT), - of oxo-alcohols oxyethylenated with 7 moles of ethylene oxide (GENAPOL UD-070 from Hoechst / Clariant), of C12-C14 alcohol oxyethylenated with 3 moles of ethylene oxide (GENAPOL LA-030 from the company HOECHST / CLARIANT), - alcohol C12-C14 oxyethylenated with 7 moles of ethylene oxide (GENAPOL LA-070 from the company HOECHST / CLARIANT), 25 - alcohol C12- C14 oxyethylenated with 9 moles of ethylene oxide (GENAPOL LA-090 from the company HOECHST / CLARIANT), - C12-C14 alcohol oxyethylenated with 11 moles of ethylene oxide (GEN APOL LA-110 from the company HOECHST / CLARIANT), - C12-C14 alcohol oxyethylenated with 25 moles of ethylene oxide (GENAPOL LA-250 from the company HOECHST / CLARIANT), - alcohol C16 -C18 oxyethylenated with 8 moles of ethylene oxide (GENAPOL T-080 from the company HOECHST / CLARIANT), - C16-C18 alcohol oxyethylenated with 15 moles of ethylene oxide (GENAPOL T-150 of the HOECHST / CLARIANT), 35 - of C16-C18 alcohol oxyethylenated with 11 moles of ethylene oxide (GENAPOL T-110 from the company HOECHST / CLARIANT), - of C16-C18 alcohol oxyethylenated by 20 moles ethylene oxide (GENAPOL T-200 from the company HOECHST / CLARIANT), - C16-C18 alcohol oxyethylenated with 25 moles of ethylene oxide (GENAPOL 40 T-250 from HOECHST / CLARIANT) - C12-C15 alcohol oxyethylenated with 23 moles of ethylene oxide.

According to a preferred embodiment of the invention, the amphiphilic polymer used is preferably an uncrosslinked copolymer of monomer of formula (II) where X + 45 denotes sodium or ammonium and alcohol methacrylate C-12C14 or C12-C15 comprising 7 or 23 oxyethylenated groups of formula (I), obtained from methacrylic acid or a methacrylic acid salt and from Genapol LA-070 or from a C12-C15 alcohol oxyethylenated with 23 moles of oxide ethylene.

More preferably, the amphiphilic polymers used are the copolymers of monomer (II) with X + denoting sodium or ammonium and alcohol methacrylate having the following characteristics: Chain name R n Mole proportion of pendent monomer of formula (I) Genapol LA-070 Linear 7-alkyl chain 8.5 0/0 C12-14 Genapol LA-070 Linear 7-alkyl chain 18.8% C12-14 C12-C15 alcohol Branched alkyl chain 10.5% oxyethylenated C12-15 23 moles of ethylene oxide Even more preferably, use will be made of an amphiphilic copolymer s of monomer (II) where X + denotes sodium or ammonium and 18.8 mol% of methacrylate of alcohol and methacrylate of C12-C14 alcohol having 7 oxyethylenated groups of formula (I) (Genapol LA-70).

The AMPS polymers according to the invention are generally present in amounts of active material ranging from 0.01% to 5% by weight, more preferably from 0.1% to 5% by weight, and still more preferably from 0.1% to 0.1% by weight. to 5% by weight and more particularly from 0.3 to 2% by weight relative to the total weight of the composition.

The perfuming compositions are generally transparent. Their transparency is measured by a turbidity ranging from 1 to 200 NTU and preferably from 1 to 50 NTU turbidity measured at 24 hours to the portable turbidimeter HACH - Model 2100 P.

The compositions according to the invention are generally lotions and preferably have a viscosity ranging from 10 to 120 UD and more preferably from 30 to 120 UD, still more preferably from 40 to 80 UD; the viscosity being measured at Rheomat TVe-05, at 25 ° C, rotational speed 200 rpm, mobile 1, 10 min. These low viscosities make it possible to condition the compositions of the invention by means of mechanical or propellant pressurizing devices so as to be applied in the form of fine particles (vaporization).

The cosmetically acceptable medium according to the present invention contains at least one volatile alcohol and / or a volatile silicone oil and optionally water. Preferably, the medium of the composition contains water in an amount ranging from 0.01% to 50% and more preferably from 0.5% to 25% by weight relative to the total weight of the composition.

The volatile alcohols according to the present invention are preferably chosen from C1-C5 lower monoalcohols may be chosen from methanol, ethanol, propanol, isopropanol, n-butanol, isobutanol and t-butanol and more especially ethanol.

The volatile alcohol (s) are preferably present in amounts ranging from 40 to 80% and more preferably in amounts ranging from 55 to 80% by weight relative to the total weight of the composition.

As volatile silicone oils, mention may be made, for example, of volatile linear or cyclic silicone oils, in particular those having a viscosity of 6 centistokes (6.10-6 m 2 / s), and having in particular 2 to 10 silicon atoms, these silicones possibly comprising alkyl or alkoxy groups having from 1 to 22 carbon atoms. As volatile silicone oil that can be used in the invention, there may be mentioned in particular octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, heptamethylhexyltrisiloxane, heptamethyloctyltrisiloxane, hexamethylisiloxane, octamethyltrisiloxane and decamethyl tetrasiloxane, dodecamethylpentasiloxane and mixtures thereof.

The volatile silicone oil or oils are present preferably from 40 to 98.5%, preferably in concentrations ranging from 10% to 80% by weight relative to the total weight of the composition.

The composition of the invention may comprise, in addition, any additive usually used in the field of perfumes selected in particular from cosmetic or dermatological active agents, emollients or softeners such as sweet almond oil, apricot kernel oil, the agents moisturizers such as glycerin, soothing agents such as a-bisabolol, allantoin, aloes vera; vitamins, essential fatty acids, insect repellents, propellants, fillers, nacres, flakes, soluble dyes in the support of the composition, perfume color stabilizers and mixtures thereof. When they are present in the composition of the invention, these additives may be present in an amount ranging from 0.001 to 10% and better still from 0.01 to 5% by weight relative to the total weight of the composition.

The composition of the invention may further comprise soluble dyes in the support of said composition

As soluble dyes in accordance with the invention, mention may be made of hydrosoluble or hydrophilic dyes such as: caramel, Yellow 5, Acid Blue 9 / Blue 1, Green 5, Green 3 / Fast Green FCF 3, Orange 4, Red 4 / Food Red 1, Yellow 6, Red Acid 33 / Food Red 12, Red 40, Cochineal Carmine (Cl 15850, Cl 75470), Ext. Violet 2, Red 6-7, Ferric Ferrocyanide, Ultramarines, Yellow 3 / Yellow 10 Acid, Blue 3 Acid, Yellow 10.

The soluble dye (s) according to the invention are preferably present in amounts ranging from 10-5 to 1% of the total weight of the composition, preferably from 10-4 to cm% of the total weight. of the composition.

Perfume color stabilizers include Tris (tetramethylhydroxypiperidinol) citrate such as product sold under the name TINOGUARD Q by CIBA-GEIGY, Sodium Benzotriazolyl Butylphenol Sulfonate as the product sold under the name TINOGUARD HS by CIBA -GEIGY; Benzotriazolyl dodecyl p-Cresol as the product sold under the name TINOGUARD TL by the company CIBA-GEIGY. as the product sold under the trade name CIBAFAST H LIQUID by the company CIBA-GEIGY. Bumetrizole as the product sold under the name TINOGUARD AS by the company CIBA-GEIGY.

According to one particular form of the invention, at least one additional antioxidant and / or at least one peptizing agent will be used in order to improve the clarity of the composition and / or to reduce or even eliminate the cold precipitation phenomena that may be caused by certain perfumes and / or improve the stability of the composition during storage.

Among the antioxidants, mention may be made, for example, of BHA (tert-butyl-4-hydroxyanisole), BHT (2,6-di-tert-butyl-p-cresol), tocopherols such as vitamin E and its derivatives such as tocopheryl acetate. They are used at concentrations ranging from 0.01% to 10% relative to the total weight of the composition.

Among the peptizers that can be used according to the invention, use will be made more particularly of hydrogenated castor oil oxyethylenated with 60 moles of ethylene oxide: INCI name: PEG-60 HYDROGENATED CASTOR OIL as the product sold under the trade name CREMAPHOR RH60 by BASF. They are used at concentrations ranging from 0.1% to 2 times the concentration of perfume concentrate relative to the total weight of the composition

According to one particular form of the invention, at least one cellulose alkyl ether and / or an alkyl alkylcellulose alkyl ether will be used in order to improve the clarity of the composition and / or to reduce or even eliminate the cold precipitation phenomena that may occur. beings caused by certain perfumes and / or improve the stability of the composition on storage. They are used at concentrations ranging from 0.01 to 2.5% relative to the total weight of the composition.

Among the cellulose alkylethers that may be used according to the invention, mention may be made of: cellulose methyl ether (INCI name: Methylcellulose), such as the product sold under the trade name BENECEL METHYLCELLULOSE by the company HERCULES INCORPORATED or the product sold under the trade name METHOCEL A by AMERCHOL CORPORATION - cellulose ethyl ether (INCI name: Ethylcellulose) such as the product sold under the trade name AQUALON ETHYLCELLULOSE by the company HERCULES INCORPORATED or the product sold under the trade name ETHOCEL by the company DOW CHEMICAL.

Among the alkyl ether alkylcellulose usable according to the invention, mention may be made of methyl ethyl cellulose ether (INCI name Methyl Ethyl Cellulose) such as the product known under the trade name Celacol CTP 991 by the company COURTAULDE CHEMICALS.

Cellulose ethyl ether (INCI name: Ethylcellulose) will be used more particularly.

Of course, those skilled in the art will take care to choose the possible additional additives and / or their quantity in such a way that the advantageous properties of the composition according to the invention are not or not substantially impaired by the addition envisaged.

The invention applies not only to colored perfuming products but also to care products, skin treatment, including scalp, and lips, containing an odoriferous substance. The composition according to the invention may thus constitute a composition for perfuming, caring for and treating keratin materials, and in particular be in the form of fresh water, eau de toilette, eau de parfum, lotion afterwards. shaving, care water, silicone or hydrosilicone care oil. It may also be in the form of a scented two-phase lotion (eau de toilette phase / hydrocarbon oil phase and / or silicone oil).

The subject of the invention is also a cosmetic process for perfuming keratinous substances of human beings and in particular of the skin, lips and superficial body growths, comprising the application to the keratin materials of the composition as defined above.

The composition according to the invention can be manufactured by known methods, generally used in the field of perfumed and colored lotions.

The compositions according to the invention in the form of lotions may be packaged in the form of flasks. They can also be applied in the form of fine particles by means of mechanical or propellant pressurizing devices. The devices according to the invention are well known to those skilled in the art and include the pump-bottles or "spray", the aerosol containers comprising a propellant and the aerosol pumps using compressed air as a propellant. These are described in US Pat. Nos. 4,077,441 and 4,850,517 (which forms an integral part of the content of the description).

The aerosol-conditioned compositions in accordance with the invention generally contain conventional propellants such as, for example, hydrofluorinated compounds, dichlorodifluoromethane, difluoroethane, dimethyl ether, isobutane, n-butane, propane and trichlorofluoromethane.

The invention will now be described with reference to the following examples given for illustrative and non-limiting. In these examples, unless otherwise indicated, the amounts are expressed as percentages by weight. The following perfume formulations were made; the amounts are given in percentages by weight: EXAMPLES Example 1: Eau de toilette - Monomer Copolymer of Formula (II) 1.0% and Genapol Methacrylate LA-070 5.8% (with 18.8 mol% of monomer of formula II) - Lancôme Perfume O - ethanol alcohol 96 ° 75.5% - BHT 0.05% - Water qs 100% A cleansing water is obtained which has a good hold (see olfactory tests above), limpid, stable storage at room temperature, 37 ° C and 45 °. However, there is a slight phenomenon of cold flocculation at 4 ° C. but reversible from 12 ° C. A turbidity of 1 measured at 24 hours is obtained with the portable turbidimeter HACH - Model 2100 P. The viscosity measured with Rhéomat TVe-05, at 25 ° C., rotational speed 200 rpm, mobile 1, 10 min is 48 UD.

Example 2: Eau de Toilette

1.0% monomer of formula (II) copolymer and of Genapol LA-070 methacrylate (with 18.8 mol% of monomer of formula II) 25 - Vital Water Perfume 2% - 96 ° 75 ethanol alcohol, 5% - PEG-60 HYDROGENATED CASTOR OIL 0.5% (CREMAPHOR RH60 by BASF) - BHT 0.05% 30 - Water qs 100%

Water of toilet having a good behavior, limpid, stable storage at room temperature, 37 ° C and 45 °. Compared with the example, a significant decrease in the phenomenon of cold flocculation at 4 ° C. is observed. A turbidity of 1 and a viscosity of 48 UD are obtained.

Example 3: Eau de toilette

Copolymer of monomer of formula (II) 0.5% and of methacrylate of Genapol LA-070 (with 18.8 mol% of monomer of formula I) -Ethylcellulose 0.5% - Perfume O from Lancôme 5.8 % - Ethanol 96 ° 75.5% 45 - BHT 0.05% - Water qs 100%

Water of toilet having a good behavior (see olfactory tests above), limpid, stable in storage cold (4 ° C), at room temperature, 50 37 ° C and 45 °. No phenomenon of cold flocculation at 4 ° C. A turbidity of 7 measured at 24 hours is obtained with the portable turbidimeter HACH - Model 2100 P. The viscosity measured with Rheomat TVe-05, at 25 ° C., rotational speed 200 rpm, mobile 1, 10 min is 51 UD.

Sensory tests carried out on the examples of eaux de toilette No. 1 and 3

Sensory tests were performed on a panel of 7 to 9 experts trained to smell and evaluate toilet water. Olfactory olfaction evaluations were performed at 0, 1 hour, 4 hours, 6 hours and 24 hours. For each composition 1 to 3 is carried out a triangular test with olfaction of 3 samples: 1 control and 2 tests with the composition 1, 2 or 3 according to the invention.

15 The test will be repeated 3 times at each analysis time, so the expert judge will have soaked 9 mouillettes.

The percentage of people who recognized composition 1 or 3 of the invention was evaluated as more intense than the control sample. Example 1: panel of 7 judges Example 3: panel of 9 judges Composition% of judges who estimated the composition of the invention more intense compared to the control T = 0 1 hour 4 hours 6 hours 24 hours Example 1 10% 57% 62 % 90% 76% Example 3 50% 77% 66% 80% 100% 20 25

Claims (35)

1. Perfuming composition comprising in a cosmetically acceptable medium: a) at least 1% by weight relative to the total weight of the composition of at least one perfuming substance; b) at least one volatile alcohol and / or a volatile silicone oil, c) at least one amphiphilic copolymer, crosslinked or non-crosslinked, of monomer (A) acrylamido acid; Partially or completely neutralized 2-methyl propanesulfonic acid and at least one hydrophobic monomer (B); d) and possibly water. 2. Composition according to claim 1, wherein the amount of perfuming substance varies from 1 to 30% by weight, better still from 2 to 25% by weight relative to the total weight of the composition. 3. Composition according to any one of claims 1 and 2, wherein the amphiphilic copolymers have a number average molecular weight ranging from 50,000 to 10,000,000, preferably from 100,000 to 8,000,000 and more preferably from 100,000. to 7,000,000. 4. Composition according to any one of claims 1 to 3, wherein the copolymer is partially or totally neutralized with a mineral base or an organic base and mixtures thereof. 5. A composition according to any one of claims 1 to 43, wherein the amphiphilic copolymer is obtainable from the partially or completely neutralized acrylamido-2-methyl propane sulfonic acid (A) monomer and one or a plurality of hydrophobic monomers (B) containing (i) an ethylenically unsaturated end group, (ii) a hydrophilic moiety of the formula - (CH2CH2O) n2 (CH2CH (CH3) O) p where n and p independently of one another , Denote an integer ranging from 0 to 30, preferably from 1 to 25 and more preferably from 3 to 20 with the proviso that n + p is less than or equal to 30, preferably less than 25 and more preferably less than 20, which means that n + p can range from 0 to 30, preferably from 0 to 25 and better still from 0 to 20, and (iii) a linear or branched, linear or branched, aliphatic or cycloaliphatic CmH2m + 1 hydrophobic part, 40 where m is an integer from 6 to 22. 6. The composition according to claim 7, wherein the sum n + p is an integer equal to or greater than 1 (n + p 1). 45 7. Composition according to any one of claims 5 and 6, wherein the hydrophobic portion CmH2m + 1 comprises from 6 to 30 carbon atoms, preferably from 6 to 22 carbon atoms, more preferably from 6 to 18 carbon atoms and more preferably from 12 to 18 carbon atoms. 8. Composition according to any one of claims 5 to 6, wherein the hydrophobic monomer (B) is selected from (meth) acrylates of formula (I): (I) 0 = C 0- (CH 2 CH 2 O) n ù [ Wherein n and p, independently of one another, denote a number of moles and ranges from 0 to 30, preferably from 1 to 25 and more preferably from 3 to 20, provided that the sum n + p is an integer equal to or greater than 1 and is less than or equal to 30, preferably less than 25 and more preferably less than 20; R1 denotes a hydrogen atom or a linear or branched C1-C6 alkyl radical (preferably methyl); and R denotes the radical CmH2m + 1 as defined in claim 5. 9. Composition according to any one of claims 1 to 7, characterized in that the amphiphilic copolymer consists of (A) from 1 to 20 mol% and preferably from 1 to 15 mol% of unit of formula ( I) as indicated in claim 8, and (B) 80 to 99 mol% and preferably 85 to 99 mol% of 2-acrylamido-2-methylpropanesulphonic acid unit of the following formula (II): wherein X + is a proton, an alkali metal cation, an alkaline earth cation or the ammonium ion; 25 10. The composition of claim 9, wherein the particularly preferred polymers are obtained from AMPS units of formula (II) and units of formula (I) where p = 0; R1 is the methyl radical (CH3); n is an integer from 7 to 25 and R2 is a C1-C18 alkyl radical. 30 11. Composition according to claim 9 or 10, wherein X + in formula (II) denotes sodium or ammonium. 12. Composition according to any one of claims 9 to 11, wherein the copolymer ùCH2 CH 0 = C NH20amphiphile is an uncrosslinked copolymer of monomer of formula (II) where X + denotes sodium or ammonium and C 12 alcohol methacrylate. C14 or C12-C15 having 7 or 23 oxyethylene groups of formula (I). 13. Composition according to claim 12, wherein the amphiphilic copolymer is an uncrosslinked copolymer of monomer (II) where X + denotes sodium or ammonium and 18.8 mol% of alcohol methacrylate and of C12-C14 alcohol methacrylate. comprising 7 oxyethylenated groups of formula (I). 14. Composition according to any one of claims 1 to 13, wherein the amphiphilic copolymer or copolymers are present in amounts of active material ranging from 0.01 to 5% by weight, more preferably from 0.1 to 5% by weight. still more preferably from 0.1 to 5% by weight and still more preferably from 0.3 to 2% by weight based on the total weight of the composition 15. Composition according to any one of claims 1 to 14, characterized in that it has a turbidity ranging from 1 to 200 NTU and preferably from 1 to 50 NTU 16. Composition according to any one of claims 1 to 15, wherein the cosmetically acceptable medium contains water in an amount ranging from 0.01% to 50% and more preferably from 0.5% to 25% by weight. weight relative to the total weight of the composition. 17. Composition according to any one of claims 1 to 16, wherein the volatile alcohol is selected from C1-05 lower monoalcohols. 18. The composition of claim 17, wherein the volatile alcohol is ethanol. 19. Composition according to any one of claims 1 to 18, wherein the volatile alcohol or volatile alcohols are present in amounts ranging from 40 to 80% and preferably in concentrations ranging from 55 to 80% by weight relative to to the total weight of the composition. 20. Composition according to any one of claims 1 to 19, wherein the volatile silicone oils are chosen from volatile linear or cyclic silicone oils having a viscosity of 6 centistokes (6.10-6 m2 / s), and having in particular from 2 to 10 silicon atoms, these silicones optionally having alkyl or alkoxy groups having from 1 to 22 carbon atoms. 21. A composition according to claim 20, wherein the volatile silicone oils are chosen from octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, heptamethylhexyltrisiloxane, heptamethyloctyltrisiloxane, hexamethyl disiloxane, octamethyltrisiloxane, decamethyl tetrasiloxane, dodecamethyl pentasiloxane and mixtures thereof. 22. Composition according to any one of claims 1 to 21, wherein the volatile silicone oils are present in amounts ranging from 40 to 98.5% preferably in concentrations ranging from 10% to 80% by weight relative to the total weight. of the composition. 23. Composition according to any one of claims 1 to 22, further comprising at least one additive selected from cosmetic or dermatological active ingredients, emollients or softeners, moisturizing agents, soothing agents; vitamins, essential fatty acids, insect repellents, propellants, fillers, nacres, flakes, soluble dyes in the support of the composition, perfume color stabilizers and mixtures thereof. 24. Composition according to any one of claims 1 to 23, additionally containing at least one antioxidant and / or at least one peptizing agent. 25. The composition of claim 24, wherein the antioxidant is selected from tert-butyl-4-hydroxyanisole (BHA), 2,6-di-tert-butyl-p-cresol (BHT), tocopherols. 26. Composition according to claim 25, wherein the peoptisant is chosen from hydrogenated castor oil oxyethylenated with 60 moles of ethylene oxide. 27. Composition according to any one of claims 1 to 26, additionally containing at least one cellulose alkyl ether and / or alkyl alkylcellulose alkyl ether. 28. Composition according to claim 27, wherein the alkyl ether of cellulose and / or alkyl alkylcellulose are present in concentrations ranging from 0.1% to 2.5% relative to the total weight of the composition. 29. The composition of claim 27, wherein the cellulose alkyl ether is selected from cellulose methyl ether or cellulose ethyl ether. 30. The composition of claim 27, wherein the alkyl ether of alkylcellulose is ethylcellulose methyl ether. 31. Composition according to any one of claims 27 to 30, containing cellulose ethyl ether (INCI name: Ethylcellulose). 32. Composition according to any one of claims 1 to 31, in the form of fresh water, eau de toilette, eau de parfum, aftershave, care water, oil. Silicone or hydrosilicone skincare, biphasic lotion. 33. Composition according to any one of claims 1 to 32, characterized in that it is in the form of lotion packaged in the form of a vial, in the form of a pump bottle or aerosol container. 34. Use of a crosslinked or non-crosslinked amphiphilic copolymer, of partially or totally neutralized acrylamido-2-methyl propane sulfonic acid (A) monomer and of at least one hydrophobic monomer (B) as defined in the preceding claims in a perfuming composition a) at least 1% by weight relative to the total weight of the composition of at least one perfuming substance; b) at least one volatile alcohol and / or a volatile silicone oil and optionally water as defined in the preceding claims, with the aim of increasing the persistence of the perfume. 35. A cosmetic process for the perfuming of human keratinous materials and in particular of the skin, lips and superficial body growths, comprising the application to the keratin materials of the composition as defined in claims 1 to 33.15.