FR3053591A1 - ANTI-TRANSPARENT ANHYDROUS COMPOSITION IN THE FORM OF AEROSOL COMPRISING A VOLATILE OIL, A PARTICULAR VINYL ESTER COPOLYMER, AND ANTI-TRANSPIRANT ACTIVE INGREDIENT - Google Patents

Abstract

Anhydrous composition in the form of an aerosol containing: i) an oily phase comprising - at least one volatile oil, - at least one antiperspirant active agent chosen from aluminum or zirconium salts or complexes, - at least one copolymer vinyl ester and at least one other monomer selected from a vinyl ester, an α-olefin, an alkyl vinyl ether, an allyl or methallyl ester, preferably a vinyl ester and allylic copolymer, and ii) at least one agent propellant. The invention also relates to a process for the cosmetic treatment of human perspiration, and possibly body odors related to human perspiration, including axillary odors, comprising the application to a skin surface of said composition. The invention finally relates to a use and an aerosol device implementing said cosmetic composition.

Description

© Publication no .: 3,053,591 (to be used only for reproduction orders)

©) National registration number: 16 56646 ® FRENCH REPUBLIC

NATIONAL INSTITUTE OF INDUSTRIAL PROPERTY

COURBEVOIE © Int Cl ⁸ : A 61 K8 / 81 (2017.01), A 61 K8 / 26, 8/28, A 61 Q 15/00

A1 PATENT APPLICATION

©) Date of filing: 11.07.16. (© Priority: (© Applicant (s): L'OREAL Société anonyme— FR. ©) Date of public availability of the request: 12.01.18 Bulletin 18/02. @ Inventor (s): JALENQUES XAVIER and RAMOS LAURE. ©) List of documents cited in the preliminary search report: See the end of this booklet (© References to other related national documents: ©) Holder (s): L'OREAL Société anonyme. ©) Extension request (s): (© Agent (s): L'OREAL Société anonyme.

FR 3 053 591 - A1 (64) ANTI-BREATHABLE ANHYDROUS COMPOSITION IN THE FORM OF AN AEROSOL COMPRISING A VOLATILE OIL, A PARTICULAR VINYL ESTER COPOLYMER AND AN ANTITRANSPIRANT ACTIVE.

©) Anhydrous composition in aerosol form containing:

i) an oily phase comprising

- at least one volatile oil,

- at least one antiperspirant active ingredient chosen from aluminum and / or zirconium salts or complexes,

at least one copolymer of vinyl ester and at least one other monomer chosen from a vinyl ester, an aolefin, an alkylvinyl ether, an allyl or methallyl ester, preferably a copolymer of vinyl and allyl ester, and ii) at minus a propellant.

The subject of the invention is also a process for the cosmetic treatment of human perspiration, and optionally body odors linked to human perspiration, in particular axillary odors, comprising the application to a surface of the skin of said composition. The invention finally relates to a use and an aerosol device using said cosmetic composition.

Anhydrous antiperspirant composition in aerosol form comprising a volatile oil, a specific vinyl ester copolymer and an antiperspirant active agent

The present invention relates to an anhydrous antiperspirant composition in aerosol form comprising, in a physiologically acceptable medium, in particular cosmetically acceptable,

i) an oily phase comprising at least one volatile oil, at least one antiperspirant active agent chosen from aluminum or / or zinc chloride salts or complexes, at least one vinyl ester copolymer and at least one another monomer chosen from a vinyl ester, an α-olefin, an alkylvinyl ether, an allyl or methallyl ester, preferably a copolymer of vinyl ester and of allyl ester, and ii) at least one propellant.

The subject of the invention is also a method for the cosmetic treatment of human perspiration, and optionally body odors linked to human perspiration, in particular axillary odors, comprising the application to a keratinous material, preferably to a surface of the skin, preferably on a surface of human skin, of said composition.

The present invention also relates to the use of said at least one vinyl ester copolymer and at least one other monomer chosen from a vinyl ester, an α-olefin, an alkylvinyl ether, an allylic or methallylic ester, preferably a copolymer of vinyl ester and allyl ester as described below in an antiperspirant composition based on aluminum salts and an aerosol device using it to reduce the transfer of visible and unsightly traces on the clothing without compromising the effectiveness of aluminum salts.

The armpits as well as certain other parts of the body are generally the place of several discomforts which can come directly or not from the phenomena of sweating. These phenomena often lead to unpleasant and annoying sensations which are mainly due to the presence of sweat resulting from perspiration which can, in certain cases, make the skin sweaty and wet the clothes, in particular in the armpits or the back, thus leaving visible traces. Finally, during its evaporation, sweat can also leave salts and / or proteins on the surface of the skin, thus creating whitish traces on clothing. Such discomfort is noted including in the case of moderate sweating.

In the cosmetic field, it is thus well known to use in topical application, antiperspirant products containing substances which have the effect of limiting or even eliminating the sweat flow in order to remedy the problems mentioned above. These products are generally available in the form of roll-on, sticks, aerosol or spray.

Antiperspirant substances generally consist of aluminum or zirconium salts or complexes, such as aluminum chloride and aluminum hydroxyhalides. These substances reduce the flow of sweat.

However, cosmetic compositions based on these antiperspirant substances generally tend to transfer to clothing, leaving visible and unsightly traces.

In order to remedy this drawback, antiperspirant compositions containing oils having a refractive index close to those of aluminum salts have been developed. The role of such oils is to reduce the whitish appearance of the antiperspirant compositions when they are deposited on the skin and, consequently, to make the marks on clothing less white. The oils used are generally esters of fatty acids such as isopropyl myristate or po1 ydimethy1 si1oxanes. Such compositions have in particular been described in patents or patent applications EP 1362885, JP 03095111, FR 2242969.

However, such antiperspirant compositions have the disadvantage of giving the skin, in particular in the armpits, an unpleasant oily sensation for the user, and do not make it possible to limit the transfer of antiperspirant products from the skin to the clothes. .

There is therefore a real need to put in anti-aerosol cosmetics, which does not work breathable compositions in the form do not have the drawbacks mentioned above, that is to say compositions which transfer as little as possible to the tissues and which maintain a antiperspirant efficacy.

The Applicant has discovered, surprisingly, that by applying to the keratin materials, preferably the skin, preferably the human skin, an anhydrous composition in aerosol form containing an oily phase comprising at least one volatile oil, at least active antiperspirant preferably chosen from aluminum or / and zirconium salts or complexes, at least one copolymer of vinyl ester and at least one other monomer chosen from vinyl, an α-olefin, an alkylvinyl ether, an ester allyl or methallyl, preferably a copolymer of vinyl ester and allyl ester, and at least one propellant, it was possible to minimize the problems of transfer of an ester composed of antiperspirants on the fabrics while maintaining a antiperspirant efficacy.

Thus the antiperspirant cosmetic composition in aerosol form according to the invention leads to formulas which transfer less to textiles, which generates less visible and unsightly traces on clothing, in particular on clothing having a dark color, compared to a conventional antiperspirant composition or an antiperspirant composition containing oils.

In particular, the antiperspirant cosmetic composition makes it possible to significantly reduce the whitish marks on the clothes, in particular on the clothes having a dark color.

Furthermore, the cosmetic composition in aerosol form according to the invention maintains good antiperspirant efficacy.

Thus, the use of at least one vinyl ester copolymer and at least one other monomer chosen from a vinyl ester, an α-olefin, an alkylvinyl ether, an allyl or methallyl ester, preferably a vinyl ester copolymer. and of an allyl ester as described below in an antiperspirant composition based on aluminum salts allows visible traces and clothing without harming aluminum salts.

In addition, the polymers used prove to be compatible with the aluminum salts because they do not form a precipitate visible from a macroscopic point of view within the composition.

decrease the unsightly '

transfer on

The subject of the present invention is therefore in particular an anhydrous composition in the form of an aerosol containing:

i) an oily phase comprising at least one volatile oil, at least one antiperspirant active agent chosen from aluminum or / and zirconium salts or complexes, at least one copolymer of vinyl ester and of at least one other monomer chosen from a vinyl ester, an oc-olefin, an alkylvinyl ether, an allyl or methallyl ester, preferably a copolymer of vinyl ester and of allyl ester, and ii) at least one propellant.

The cosmetic composition has both good transfers and antiperspirants.

according to the invention antiParent properties Furthermore, the present invention also relates to a cosmetic treatment process for human perspiration, and optionally body odors linked to human perspiration, consisting in applying to the surface of a human keratinous material an effective amount of the cosmetic composition as described preceded by mm in t.

The method according to particularly advantageous perspiration to the composition used the invention is for treating the level of the armpits because the implementation does not provide an unpleasant oily feeling and transfers less to the clothes while effectively treating the perspiration.

The invention also relates to the use of said composition for cosmetically treating perspiration, preferably human perspiration.

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

For the purposes of the present invention, the term “acceptable” is defined,

1'a dm inistration "physiologically medium a medium suitable for a topical composition. A physiologically acceptable medium is a cosmetically or dermatologically colored medium, or an apparently acceptable medium, that is to say without an unpleasant appearance, and which is compatible with the topical route of administration. In the present case where the composition is intended to be administered topically, that is to say by application to the surface of the keratin material in question, such a medium is in particular considered physiologically acceptable when it does not tingle, tightness or unacceptable for 1 'as generates redness

By “anhydrous” is meant within the meaning of the present invention, a liquid phase having a water content of less than 5% by weight, preferably less than 2% by weight and even more preferably less than 1% by weight. relative to the weight of said composition. It should be noted that this is more particularly bound water, such as the water of crystallization from the salts or traces of water absorbed by the raw materials used in the production of the compositions according to the invention.

By "human keratin materials" is meant the skin (body, face, eye area), hair, eyelashes, eyebrows, body hair, nails, lips, mucous membranes.

By “final composition” is meant the combination of the liquid phase and the propellant gas.

Antiperspirant active

The term "antiperspirant active" means a salt which, by itself, has the effect of reducing the sweat flow, of reducing the sensation on the skin of humidity linked to human sweat or of masking human sweat.

As indicated above, the cosmetic composition comprises one or more antiperspirant active agents preferably chosen from aluminum and / or zirconium salts.

The aluminum and / or zirconium salts are the zirconium halohydrates, the zir coni um and preferably chosen from aluminum, the complex hydrochloride hydrochlorides of aluminum hydroxychloride with or without amino acids such as those described in patent US3792068.

Among the aluminum salts or complexes, mention may be made of aluminum halohydrates.

Among the aluminum salts, there may be mentioned in particular aluminum hydrochloride, aluminum chlorohydrex, polyethylene glycol complex, chlorohydrex propylene glycol, dichlorohydrate, dichlorohydrex complex polyethylene glycol, aluminum chlorohydrex complex

Aluminum aluminum, aluminum dichlorohydrex propylene glycol complex, aluminum sesquichlorohydrate, aluminum compound, sesquichlorohydrex polyethylene glycol, aluminum sesquichlorohydrex propylene glycol complex, aluminum sulfate buffered by sodium and aluminum lactate.

Aluminum sesquichlorohydrate is sold in particular under the trade name REACH 301® by the company SUMMITREHEIS.

Aluminum hydrochloride is sold in particular under the trade names LOCRON S FLA®, LOCRON P, LOCRON L.ZA by the company CLARIANT; under the trade names MICRODRY ALUMINUM CHLOROHYDRATE®, MICRO-DRY 323®, CHLORHYDROL 50, REACH 103, REACH 501 by the company SUMMITREHEIS; under the trade name WESTCHLOR 200® by the company WESTWOOD; under the trade name ALOXICOLL PF 40® by the company GUILINI CHEMIE; CLURON 50% ® by INDUSTRIA QUIMICA DEL CENTRO; CLOROHIDROXIDO ALUMINIO SO A 50% ® by FINQUIMICA.

In particular, the aluminum and / or zirconium salts or complexes are chosen from aluminum hydrochloride, aluminum chlorohydrex, aluminum chlorohydrex polyethylene glycol complex, aluminum chlorohydrex propylene glycol complex, aluminum dichlorohydrate, aluminum dichlorohydrex complex polyethylene glycol aluminum dichlorohydrex propylene glycol complex aluminum sesquichlorohydrate, aluminum sesquichlorohydrex complex polyethylene glycol, aluminum complex sesquichlorohydrex propylene glycol, alum salts, aluminum sulfate, preferably aluminum sulfate buffered by sodium lactate and aluminum, aluminum zirconium octachlorohydrate, aluminum zirconium pentachlorohydrate, aluminum zirconium tetrachlorohydrate, aluminum zirconium trichlorohydrate, aluminum zirconium octachlorohydrex glycine complexes, aluminum zirconium pentachlorohydrex glycine, aluminum zirconium tetrachlorohydrex glycine and aluminum zirconium trichlorohydrex glycine.

More particularly, aluminum hydrochloride, aluminum sesquichlorohydrate and mixtures thereof will be used.

The antiperspirant aluminum salts may be present in the final composition according to the invention in a content of at least 0.5% by weight, preferably ranging from 0.5 to 25% by weight, preferably in a content ranging from 1 to 20% and more particularly between 2 and 15% by weight of active material relative to the total weight of the final composition.

Vinyl ester copolymer

The composition according to the invention comprises at least one copolymer of vinyl ester and of at least one other monomer chosen from a vinyl ester, an α-olefin, an alkylvinyl ether, an allyl or methallyl ester.

Preferably, the copolymers according to the invention are 1iposolub1es.

By "liposoluble polymer" is meant a polymer which when introduced alone in an amount of dry matter at least greater than 0.01% by weight and for an amount corresponding to that envisaged for the desired final composition, is soluble in a phase oily liquid at room temperature, generally of the order of 25 ° C, and at atmospheric pressure (750mm Hg, or 10 ⁵ Pa).

By “liquid fatty phase” is meant, within the meaning of the invention, a fatty phase liquid at room temperature (25 ° C) and atmospheric pressure (750 mm Hg, or 10 ⁵ Pa), composed of one or more fatty substances liquids at room temperature, also called oils, generally compatible with each other. The liquid fatty phase according to the invention comprising at least one volatile oil as described below.

The copolymers which can be used in the present invention are preferably vinyl ester copolymers, the vinyl group being directly linked to the oxygen atom of the ester group and the vinyl ester having a saturated, linear or branched hydrocarbon radical, from 1 to 19 carbon atoms, linked to the carbonyl of the ester group and of at least one other monomer which may be a vinyl ester different from the vinyl ester already present, an α-olefin having from 8 to 28 carbon atoms, an alkylvinyl ether in which the alkyl group contains from 2 to 18 carbon atoms, or an allyl or methallyl ester having a saturated, linear or branched hydrocarbon radical of 1 to 19 carbon atoms, linked to the carbonyl of the ester group.

These copolymers can be crosslinked using crosslinkers which can be either of the vinyl type, or of the allylic or methallyl type, such as tetraallyloxyethane, divinylbenzene, divinyl octanedioate, divinyl dodecanedioate, or divinyl octadecanedioate. divinyl.

As examples of these copolymers, mention may be made of the copolymers: vinyl acetate / allyl stearate, vinyl acetate / vinyl laurate, vinyl acetate / vinyl stearate, vinyl acetate / octadecene , vinyl acetate / octadecylvinylether, vinyl propionate / allyl laurate, vinyl propionate / vinyl laurate, vinyl stearate / octadecene-1, vinyl acetate / dodecene-1, stearate vinyl / ethylvinyl ether, vinyl propionate / cetyl vinyl ether, vinyl stearate / allyl acetate, 2,2-dimethyl vinyl octanoate / vinyl laurate, 2,2-dimethyl allyl pentanoate / laurate vinyl, vinyl dimethyl propionate / vinyl stearate, allyl dimethyl propionate / vinyl stearate, vinyl propionate / vinyl stearate, crosslinked with 0.2% divinyl benzene, vinyl dimethyl propionate / vinyl laurate vinyl, crosslinked with 0.2% divinyl benzene, vinyl acetate / octadecyl wine yl ether, crosslinked with 0.2% tetraallyloxyethane, vinyl acetate / allyl stearate, crosslinked with 0.2% divinyl benzene, vinyl acetate / octadecene-1 crosslinked with 0.2% divinyl benzene and allyl propionate / allyl stearate crosslinked with 0.2% divinyl benzene.

The copolymers defined above are known and in particular described in application FR-A-2232303; they can have a weight average molecular weight ranging from 2,000 to 500,000 and preferably from 4,000 to 200,000.

Preferably, the copolymers used in the present invention of vinyl ester copolymers, the vinyl group being directly linked to the oxygen atom of the ester group and the vinyl ester having a saturated hydrocarbon radical, linear or branched, from 1 to 19 carbon atoms, linked to the carbonyl of the ester group and of allyl ester having a saturated hydrocarbon radical, linear or branched, from 1 to 19 carbon atoms, linked to the carbonyl of the ester group.

In a preferred embodiment, the composition according to the invention comprises at least one copolymer of vinyl acetate and allyl stearate, preferably having a mass ratio of vinyl acetate / allyl stearate of 35/65 .

In another preferred embodiment, the composition according to the invention comprises at least one copolymer of vinyl acetate and allyl stearate, preferably having a molar ratio of vinyl acetate / allyl stearate of 67 / 33.

Preferably, the composition according to the invention comprises at least one copolymer of vinyl acetate and allyl stearate having a mass and / or molar ratio of vinyl acetate / allyl stearate as described above, and is sold under the name of “Mexomère PQ ®” by the company CHIMEX.

The vinyl ester copolymer may be present in the final composition according to the invention in a content ranging from 0.1 to 20% by active material by weight, preferably in a content ranging from 0.5 to 10% by weight, more preferably in a content ranging from 0.8 to 3% by weight of active material relative to the total weight of the final composition.

Oily phase

The antiperspirant composition according to the invention comprises an oily phase; which contains at least one volatile oil.

Preferably, the volatile oil is chosen from volatile hydrocarbon oils, volatile silicone oils or their mixtures.

In a particular embodiment of the present invention, said oily phase also comprises at least one non-vo1 at i1e hydrocarbon oil.

By “oil” is meant a fatty substance which is liquid at room temperature (25 ° C.) and atmospheric pressure (760 mmHg, ie 10 ⁵ Pa). The oil can be volatile or non-volatile.

By "volatile oil" is meant in the sense of The invention an oil susceptible to evaporate at contact of the skin or of the fiber keratin in less than an hour, at temperature amb iant and

atmospheric pressure.

The volatile oils according to the invention are volatile cosmetic oils, liquid at room temperature, having a non-zero vapor pressure, at room temperature and atmospheric pressure, ranging in particular from 0.13 Pa to

0,000 Pa (10 ‘

300 mm Hg), in particular ranging from 1.3 Pa to 13,000 Pa (0.01

100 mm Hg), and more (0.01 to 10 mm Hg) ranging from 1.3 Pa to 1300 Pa means a

By "non-volatile oil", oil remaining on the skin or keratin fiber at room temperature and atmospheric pressure for at least several hours and having in particular a

pressure of steam strictly inf A y- ï Û Π ire at 1CT ³ mm of Hg (0, 13 Pa). By " today 1 hydrocarbon ", we hears a oil comprising mainly of atoms of carbon and hydrogen and possibly a or

several functions chosen from hydroxyl, ester, ether and carboxylic functions. Generally, the oil has a viscosity of 0.5 to 100,000 mPa.s, preferably from 50 to 50,000 mPa.s and more preferably from 100 to 30,000 mPa.s.

By "liquid phase" or "juice" is meant in the sense of the present invention the base of the composition without the propellant.

Volatile oils

Preferably, the volatile oil is chosen from volatile hydrocarbon oils, volatile silicone oils or their mixtures.

By way of examples of volatile hydrocarbon-based oil which can be used in the invention, mention may be made of volatile hydrocarbon-based oils chosen from hydrocarbon-based oils having from 8 to 16 carbon atoms, and in particular the C ₈ -C ₆ isoalkanes of petroleum origin isoparaffins) like isododecane 2, 2,4, 4, 6-pentamethylheptane), (also called also isodecane,

Isohexadecane, and for example the oils sold under the trade names of Isopars or Permyls, branched C ₈ -C ₆ esters, isohexyl neopentanoate, and mixtures thereof. Other volatile hydrocarbon oils such as petroleum distillates, in particular those sold under the name Shell Either by the company SHELL, can also be used as well as the volatile linear alkanes such as those described in the patent application of the company Cognis DE10 2008 012 457.

As examples of oils which can be used in the invention, vo1 at i1e s include centistokes (8 10 ⁶ m ² / s) silicon atoms, linear or cyclic volatile silicone oils, in particular those having a viscosity < 8 and having in particular from 2 to these silicones optionally comprising alkyl or alkoxy groups having 1 carbon atoms. As volatile oil which can be used in the invention, no

cyclopentasiloxane, cyclohexasiloxane, heptamethy1

Heptamethyloctyl disiloxane, octamethyl may cite 'octamethyl de camé thy1 dodécaméthyl

Hexamethy1, decamethyl, dodecamethyl pentasiloxane linear oils akyltrisi1oxanes volatiles of general formula (I):

CH

R ^if H (I) where R represents an alkyl group comprising from 2 to 4 carbon atoms and one or more hydrogen atoms of which may be substituted by a fluorine or chlorine atom.

Among the oils of general formula (I), there may be mentioned:

3-butyl 1,1,1,3,5,5,5-heptamethyl e 3-propy1, and

1, 1, 1,3,5,5,5-heptamethyl

3-ethyl 1,1,1,3,5,5,5-heptamethyl corresponding to the oils of formula (I) for which R is respectively a butyl group, a propyl group or an ethyl group.

The proportion of volatile oil (s) relative to all of the oils preferably varies from 50% to 100% by weight.

Preferably, the volatile oils are chosen from hydrocarbon oils and more particularly Cs-C16 isoalkanes such as isododecane, isohexadecane or Cs-C16 linear alkanes as an undecane / tridecane mixture.

The sododecane will be chosen even more particularly.

According to a particular form of the invention, the oily phase additionally comprises at least one non-volatile oil.

The non-volatile oils can be chosen from hydrocarbon oils, oils, fluorinated oils and their mixtures.

Non-volatile hydrocarbon oils

By way of example of a non-volatile hydrocarbon oil which can be used in the invention, there may be mentioned:

- vegetable hydrocarbon oils such as liquid triglycerides of fatty acids with 4 to 24 carbon atoms such as triglycerides of heptanoic or octanoic acids or oils of wheat germ, olive oils, almond oil sweet, palm, rapeseed, cotton, alfalfa, poppy, pumpkin, squash, blackcurrant, evening primrose, millet, barley, quinoa, rye, safflower, bancoulier, passionflower, muscat rose, sunflower, corn, soy, grapeseed, hazelnut squash, avocado, caprylic / capric apricot company, macadamia, triglycerides as those sold soul, of castor, acids by the

Dubois or those sold under the names Miglyol 810

812 and 818 by Dynamit Nobel, jojoba oil, shea butter;

rami trusted, that

- linear or mineral or synthetic hydrocarbons such as paraffin oils and their derivatives, petroleum jelly, polydecenes, polybutenes, hydrogenated polyisene butene such as Parleam, squalane;

- Synthetic ethers having from 10 to 40 carbon atoms such as dicapry1y1ether, PPG14 Butyl Ether;

- synthetic esters, in particular of fatty acids, such as oils of formula R1COOR2 in which Ri represents the remainder of a higher linear or branched fatty acid containing from 1 to 40 carbon atoms and R2 represents a notably branched hydrocarbon chain containing 1 with 40 carbon atoms with Ri + R2> 10 such as for example Purcellin oil (ketostear octanoate), isononyl isononanoate, isopropyl myristate, isopropyl palmitate, laurate palmitate benzoate C12 to C15 alcohol, hexyl, diisopropyl adipate, ethyl 2-hexyl, octyl 2-dodecyl stearate, octyl 2-dodecyl erucate, isostearyl isostearate , tridecyl trimellitate; octanoates, decanoates or ricinoleates of alcohols or polyalcohols such as propylene glycol dioctanoate; hydroxylated esters such as isostearyl lactate, octyl hydroxy stearate, octyl dodecyl hydroxy stearate, diisostearyl malate, triisocetyl citrate, heptanoates, octanoates, decanoates of fatty alcohols; polyol esters such as propylene glycol dioctanoate, neopentyl glycol diheptanoate, diethylene glycol diisononanoate; and pentaerythritol esters such as pentaerythrytyl tetra-isostearate;

fatty alcohols which are liquid at room temperature with a branched and / or unsaturated carbon chain having from 12 to 26 carbon atoms such as octyl dodecanol, isostearyl alcohol, 2butyloctand, 2-hexyl decanol, 2-undecyl pentadecanol, l oleic alcohol;

higher fatty acids such as oleic acid, linoleic acid, linolenic acid;

- fatty chain carbonates;

- fatty chain acetates;

- fatty chain citrates.

As an example of a non-volatile silicone oil which can be used in the invention, mention may be made of:

non-volatile silicones such as (PDMS), alkyl, alkoxy polydimethylsiloxanes or hui linear or cyclic polydimethylsiloxanes comprising phenyl groups, during or at the end of the silicone chain, groups having from 2 to 24 carbon atoms and their mixtures.

By way of example of a non-volatile fluorinated oil which can be used in the invention, mention may be made of fluorinated oils optionally partially hydrocarbon-based and / or silicone-based, such as oils, fluorinated polyethers and fluorinated oils as described in document EP-A- 847752.

Preferably, the non-volatile oils are chosen from non-volatile hydrocarbon oils and more particularly the hydrogenated polyisobutenes oils like Parléam®, ethers like dicapry1 y1ether or PPG-14 Butyl Ether, fatty acid esters like palmitate isopropyl, isononyl isononanoate, C12-C15 kylbenzoate, fatty alcohols such as octyldodecanol and mixtures thereof.

We will choose more fatty acid such as the esters isopropyl palmitate, isononyl isononanoate, C12C15 alkylbenzoate and even more particularly isopropyl palmitate.

The total amount of oil (s) present in the composition of the invention is preferably in a content ranging from 20 to 90% by weight, more preferably in a content ranging from 30 to 80% by weight relative to the total weight of the liquid phase (or juice).

Addi t ifs

The cosmetic compositions according to the invention may also comprise adjuvants that are cos smelling as suspension or softening agents, stabilizers, chosen from deodorant active agents, moisture absorbers, antioxidant gelling agents, lipophilic agents. , opacifiers, moisturizers, vitamins, bactericides, preservatives, polymers, perfumes, thickeners or suspending agents, agents promoting drying speed, or any other ingredient usually used in cosmetics for this type of application.

Of course, the person skilled in the art will take care to choose this or these optional additional compounds in such a way that the advantageous properties intrinsically attached to the cosmetic composition in accordance with the invention are not, or not substantially, altered by the addition (s) envisaged. .

Deodorant active ingredients

According to a particular form of the invention, the compositions can contain at least one deodorant active agent in the liquid phase.

The term "deodorant active" means any substance capable of reducing, masking absorbing human body odors, in particular axillary odors.

The deodorant active agents can be bacteriostatic agents or bactericidal agents acting on the germs of axillary odors, such as 2,4,4'-trichloro-2'-hydroxydiphenylether (®Tric1os an), 2, 4-dich1oro-2 ' -hydroxydipheny1ether, 3 ', 4', 5 '-1richlorosa1icy1ani1ide, 1 - (3', 4'-dichlorophenyl) -3 - (4 '-chlorophenyl) urea (®Tric1ocarban) or 3,7,11-trimethyldodeca2 , 5, 1 0-1riéno1 (© Farnesol); quaternary ammonium salts such as cetyltrimethylammonium salts, cetylpyridinium salts, DPTA (1,3-diaminopropane-tetraacetic acid), 1,2 decanediol (sYmclariol from Symrise); glycerin derivatives such as Capry1ic / Capric Glycerides (CAPMUL MCM® from Abitec), glycerol caprylate or caprate (DERMOSOFT GMCY® and DERMOSOFT GMC® from STRAETMANS), Polyglycéryl-2 Caprate (DERMOSOFT DGMC®

STRAETMANS), biguanide derivatives as polyhexamethylene biguanide salts;

chlorhexidine and its salts; dimethy1-2-butano1 (SYMDEO MPP® of zinc salts such as zinc gluconate salicylate, zinc pidolate, zinc sulfate, zinc chloride, zinc lactate, zinc phenosulfonate; salicylic acid and its derivatives such as n-octanoyl-5salicyli que.

has them

4-Phenyl-4,4 S ymr i se); zinc,

The deodorant active agents can be odor absorbers such as zinc ricinoleates, sodium bicarbonate; silver or metallic or silverless zeolites, cycododtrins and their derivatives. It can also be chelating agents such as DISSOLVINE GL-47-S® from Akzo Nobel, EDTA and DPTA. It may also be a glycerin or 1,3-propanediο 1 polyol (ZEMEA PROPANEDIOL marketed by Dupont Tate and Lyle Bioproducts); or an enzyme inhibitor such as triethyl citrate; or alum.

The deodorant active agents can also be neutralizing agents for volatile smelly sodium bicarbonate marketed by UNIVERSAL PRESERVACHEM, magnesium carbonate marketed by BUSCHLE & LEPPER, calcium carbonate marketed by SENSIENT, zinc oxide co mmercialized co mm marketed by KOBO, magnesium oxide by DR. PAUL LOHMANN, calcium oxide; amino derivatives such as tromethamine (TRIS AMINO ULTRA marketed by Angus (Dow Chemical), triethano1 amine, triethylamine,

Ethanolamine.

The deodorant active agents may be present in the composition according to the invention in an amount of about 0.01 to 20% by weight relative to the total composition, and preferably in an amount of about 0.1 to 5% by weight of active ingredient relative to the total weight of the final composition.

Moisture absorbing agents

It is also possible to add moisture absorbers such as perlites and preferably expanded perlites.

The cosmetic composition may comprise one or more moisture-absorbing agents chosen from perlites.

Preferably, the cosmetic composition comprises one or more absorbent agents chosen from expanded perlites.

The perlites which can be used according to the invention are generally aluminosilicates of volcanic origin and have as composition

70.0-75.0% by weight of SiCL silica

12.0-15.0% by weight of aluminum oxide oxide

A1 ₂ O ₃

3.0-5.0% sodium oxide Na2 <3

3.0-5.0% potassium oxide K2O

0.5-2% iron oxide Fe2Û3

0.2-0.7% magnesium oxide MgO

0.5-1.5% calcium oxide CaO

0.05 - 0.15% titanium oxide T1O2

The perlite is ground, dried and then calibrated in a first step. The product obtained, called Perlite Ore, is gray in color and around 100 μm in size.

The Perlite Ore is then expanded (1000 ° C / 2 seconds) to give more or less white particles. When the temperature reaches 850-900 ° C, the water trapped in the structure of the material vaporizes and causes the expansion of the material compared to its original volume. The expanded perlite particles according to the invention can be obtained by the expansion method described in US Pat. No. 5,002,698.

Preferably, the perlite particles will be ground; in this case they are called Expanded Milled Perlite (EMP). They preferably have a particle size defined by a median diameter D50 ranging from 0.5 to 50 μm and preferably from 0.5 to 40 μm.

Preferably, the particles of perlite bulk density not packed at 25 ° C. ranging from 10 and 40 kg / m3 (Standard DIN 53468) and preferably from 10 and 300 kg / m ^{3 present} .

Preferably, the expanded perlite particles according to the invention have a water absorption capacity measured at the WET POINT ranging from 200 to 1500% and preferably from 250 to 800%.

The Wet Point corresponds to the amount of water that must be added to 1 g of particle to obtain a homogeneous paste. This method derives directly from that of the oil intake applied to solvents. The measurements are made in the same way via the Wet Point and the Flow Point having respectively the following definition:

WET POINT: mass expressed in grams per 100g of product corresponding to obtaining a homogeneous paste when adding a solvent to a powder.

FLOW POINT: mass expressed in grams per 100g of product from which the amount of solvent is greater than the capacity of the powder to retain it. This results in obtaining a more or less homogeneous mixture flowing on the glass plate.

The Wet Point and the Flow point are measured according to the following protocol:

Water absorption measurement protocol.

1) Material

Glass plate (25 x 25 mm)

Spatula (wooden handle and metal part (15 x 2.7mm)

Bristle brush

Balance

2) Operating mode We remove the glass plate sure 1 a balance and we weigh lg of perlite particles. We deposit 1 st dig containing the solvent so than 1 a direct debit pipette 1 a balance. We add gradually the solvent at 1 a powder in regularly kneading the whole (all the 3 to 4

drops) using the spatula

The mass of solvent necessary for obtaining the Wet Point is noted. The solvent is added again and the mass making it possible to arrive at the flow point is noted. The average will be carried out over 3 tests.

In particular, the expanded perlite particles sold under the trade names OPTIMAT 1430 OR or OPTIMAT 2550 by the company WORLD MINERALS will be used.

Agents promoting drying speed

The antiperspirant composition according to the invention may also contain one or more agents promoting the drying speed of the keratin composition. agents after application to the material In a preferred embodiment, promoting the drying rate include monoalcohols having from 1 to 3 carbon atoms, and more particularly include methanol, ethanol, propanol, isopropanol or their mixtures.

Suspending agents

The antiperspirant composition according to the invention can also contain one or more suspensions and / or one or more Some of them can act at the same time.

gelling agents. two modi fied roles modi fied like hydrophobes s a chloride

Among the agents which can be used as a suspending agent and / or as a lipophilic gelling agent, mention may be made of clays, in the form of a powder or in the form of an oily gel; said clays possibly being modified, in particular bentonite or hectorite montmori11onite clays such as hectorites modified with C 10 -C 22 ammonium, such as hectorite modified with di-stearyl di-methyl ammonium chloride such as, for example, the product Di steardimonium Hectorite (CTFA name) (reaction product of hectorite and distearyldimonium chloride) sold under the name Bentone 38 or Bentone Gel by the company Elementis Specia1ities. Mention may be made, for example, of the product Steara1konium Bentonite (name CTFA) (reaction product of bentonite and of quaternary ammonium stearium chloride 1konium) such as the commercial product sold under the name TIXOGEL MP 250® by the company Sud Chemie

Rheo1ogica1 s, United Catalysts Inc.

It is also possible to use hydrotalcites, in particular hydrophobic modified hydrota1cites such as, for example, the products sold under the name Gilugel by the company BK Giulini.

Mention may also be made of fumed silica optionally hydrophobically treated at the surface, the particle size of which is less than 1 μm. It is indeed possible to chemically modify the surface of the generating a reduction by reaction of the number of chemical group s It is possible silanol present the surface of the silica in particular to substitute silanol groups by hydrophobic hydrophobic groups. The hydrophobic groups are then obtained can be trimethyl siloxy groups, which are in particular obtained by treatment of fumed silica in the presence of hexamethyldisi1 azane. Silicas thus treated are called "Silica silylate" according to the CTFA (8th edition, 20,000). They are for example marketed under the Aerosil R812® references by the company DEGUSSA, CAB-O-SIL TS-530® by the company CABOT, dimethyl1 si1y1oxy1e or po1ydiméthy1 si1oxane groups, which are obtained in particular by treatment of fumed silica in the presence of po1 ydiméthy1 si1oxane or diméthy1dich1orosi1ane. Silicas thus treated are called "Silica dimethyl silylate" according to the CTFA (8th edition, 2000). They are for example marketed under the references Aerosil R972®, and Aerosil R974® by the company DEGUSSA, CAB-O-SIL TS-610® and CAB-O-SIL TS-720® by the company CABOT.

Hydrophobic fumed silica in particular has a particle size which can be nanometric to micrometric, for example ranging from approximately 5 to 200 nm.

According to a particular form of the invention, the suspending or gelling agents can be activated by oils such as propylene carbonate,

The amounts of these various constituents which may be present in the composition according to the invention are those conventionally used in compositions for the treatment of perspiration.

Propellant

As co smé t i as propellants.

indicated above, the composition comprises one or more agents

The propellant used in the antiperspirant cosmetic composition according to the invention is chosen from dimethyl ether, volatile hydrocarbons such as propane, isopropane, nbutane, isobutane, n-pentane and isopentane and mixtures thereof, optionally with at least one chlorinated and / or fluorinated hydrocarbon; among the latter, mention may be made of the compounds sold by the company Dupont de Nemours under the names Fréon® and Dymel®, and as monofluorotrichloromethane, difluorodichloromethane, tetrafluorodichloroethane and 1,1-difluoroethane sold in particular under the trade name DYMEL 152 A® by DUPONT company.

especially the 1 st

Carbon dioxide, nitrous oxide, nitrogen or compressed air can also be used as a propellant.

Preferably, the antiperspirant cosmetic composition according to the invention comprises a propellant chosen from volatile hydrocarbons.

More preferably, the propellant is chosen from isopropane, n-butane, isobutane, pentane and isopentane and their mixtures.

The weight ratio between the liquid phase and the propellant varies in a ratio from 5/95 to 50/50, preferably from 10/90 to 40/60, and more preferably from 15/85 to 30/70.

Preferably, the composition according to the invention comprises:

(i) an oily phase comprising, in a physiologically acceptable medium, one or more volatile oils chosen from hydrocarbon oils, one or more antiperspirant active agents chosen from aluminum salts,

- one or more copolymer (s) of vinyl ester and at least one other monomer chosen from a vinyl ester, an α-olefin, an alkylvinyl ether, an allyl or methallyl ester, preferably a copolymer of vinyl ester and d 'allyl ester, and ii) one or more propellants.

The invention also relates to a method of cosmetic treatment of human perspiration, and optionally body odors linked to human perspiration, consisting in applying to the surface of the skin an effective amount of the cosmetic composition as described above mm e n t.

The time for applying the cosmetic composition to the surface of the skin can vary from 0.5 to (10) seconds, preferably from 1 to 5 seconds.

The cosmetic composition in accordance with the invention can be applied several times to the surface of the skin.

In particular, the cosmetic treatment method according to the invention consists in applying to the surface of the armpits an effective amount of the cosmetic composition as described above.

The invention also relates to the use of said composition for the cosmetic treatment of human perspiration.

Another object of the present invention is an aerosol device constituted by a container comprising an aerosol composition as defined above and by a means of dispensing said composition.

The dispensing means, which forms part of the aerosol device, generally consists of a dispensing valve controlled by a dispensing head, itself comprising a nozzle by which the aerosol composition is vaporized. The container containing the pressurized composition can be opaque or transparent. It can be made of glass, polymeric material or metal, possibly covered with a layer of protective varnish.

The examples which follow illustrate the present invention without limiting its scope.

Transfer measurement methods

The measurement of the transfer to clothing was carried out according to the protocol described below:

Each of the compositions to be studied is deposited on a faux leather item sold under the name Supplale® by the company Idemitsu Technofine which is glued to a rigid support. This deposition is carried out by spraying the aerosol for 2 seconds at 15 cm from the support.

After 24 hours, a black cotton cloth, dry or sprayed with artificial sweat *, is placed on the faux leather article. A pressure of 1 Newton is applied with a rotary movement over 1 revolution at a speed of 3.14 cm / sec.

The fabric is scanned with a scanner sold under the name Scanner Epson V500 (16-bit gray settings, resolution 300 dpi).

The gray level of the scans is then analyzed using image software J which has a gray level ranging from 0 to 255. The higher the gray level value, the more significant the traces. We therefore seek to obtain the lowest possible gray level values.

The transfer is also evaluated by observing the residual deposit on the synthetic leather plate:

The holding is considered very good when the deposit is unchanged after passing the fabric

It is considered good when the deposit is visible after passage of the tissue.

It is considered bad when the deposit is no longer (or very slightly) visible after passage of the fabric.

* Composition of artificial sweat:

Ingredients % in weight NaCI 0.5% (85, 6mM) Lactic acid 0.1% (11, ImM) Urea 0.1% (14.7mM) Albumin 0.10% NH ₄ OH tq pH 6.5

Examples

Examples 1 to 3:

The following examples serve to illustrate the present invention. The amounts indicated are expressed as a percentage by weight relative to the total weight of the composition.

Fo rmul a t i on

The formulas tested in aerosol form include a base manufactured according to the process described below and containing the ingredients mentioned in the following table:

Phase Ingredients Preparation Invention Example 1 Preparation Comparati out invention Example 2 Preparation i we Comparat i f off invention Example 3 AT Isopropyl palmate * ¹¹ 0 6,985 0 AT I sododecane ^{(2 1} 27.86 30 3 6.86 AT COCOS NUCIFERA (co conut) 01L ⁽³ ' 0.315 2,545 0.315 AT Allyl stearate / vinyl acetate copolymer ⁽⁴⁾ 9 0 0 AT Phenyl trimethicone (5) 2.355 0 2.355 B Di ste ardimon ium hectorite ⁽⁶⁾ 2, 6 2, 6 2. 6 VS Propylene carbonate ⁽⁷¹ 0.87 0.87 0.87 D Aluminum hydrochloride ⁽⁸ ) 35 35 35 D Sesqui aluminum hydrochloride ⁽⁹¹ 15 15 15 Perfume 7 7 7

¹¹ sold under the trade name Isopropyl

Palmitate by the company Cognis (BASF) ⁽²⁾ sold under the trade name Isododecane by the company Ineos ⁽³⁾ sold under the trade name REFRATED COPRAH OIL GV 24/26 by the company Sio (ADM) ⁽⁴⁾ sold under the trade name "Mexomère PQ ®" by the company CHIMEX.

⁽⁵⁾ sold under the trade name DOW CORNING 556 COSMETIC GRADE FLUID by the company Dow Corning ⁽⁶⁾ sold under the trade name Bentone

38VCG by the company Elementis ⁽⁷⁾ sold under the trade name Jeffsol propylene carbonate by the company Huntsman ⁽⁸⁾ sold under the trade name Reach 103 by the company Summitreheis ⁽⁹⁾ sold under the trade name Reach 301 by the company Summitreheis

Phase A was mixed with stirring. Phase (B) was slowly introduced into phase (A) and then allowed to swell for five minutes. We introduced (C). The mixture was stirred vigorously until good homogenization was obtained. Aluminum hydrochloride and aluminum sesquichlorohydrate (D) were then added little by little. Agitation was continued to obtain good homogenization. We added the scent. The bases thus formulated were packaged in cans and a propellant was added to the above preparations

according to the diagrams following: Invention Comparati out Comparati out

Example 1 invention Example 2 invention Example 3 Preparation Ex 1 2 0 - - Preparation Cl - 2 0 - Preparation C2 - - 2 0 Isobutane 8 0 8 0 8 0

Anti-transfer efficacy results

The aerosols obtained from Example 1 (according to the invention) comprising the copolymer of vinyl acetate and allyl stearate and those obtained from Examples 2 and 3 (outside the invention) without the acetate copolymer vinyl and allyl stearate were sprayed under the conditions described above and the results obtained are described in the table below10:

Ae ro s o1 Example 1 (according to The invention) Example 2 (except invention) Example 2 (except invention) Level of dry gray 61.7 ± 8.8 156.6 ± 2.0 166.7 ± 3.1 Evaluation transfer to dry Good Bad Bad Level of gray with the 51.8 ± 5.0 65.2 ± 2.5 64.7 ±

sweat artificial 13.4 Evaluation with the sweat artificial Good Bad Bad

The comparison between Example 1 (invention) and Examples 2 and 3 (outside the invention) shows that good anti-transfer efficiency of the composition is obtained only in the presence of the vinyl acetate / allyl stearate copolymer.

Claims (14)

1. Anhydrous composition in aerosol form containing: an oily phase comprising at least one volatile oil, at least one antiperspirant active agent chosen from aluminum or / and zirconium salts or complexes, at least one vinyl ester copolymer and at least one other monomer chosen from a vinyl ester, an α-olefin, an alkylvinyl ether, an allylic or methallylic ester, preferably a copolymer of vinyl acetate and allyl stearate, and) at least one propellant. aluminum comp1 ex e 2. Composition according to claim 1, characterized in that the aluminum or / and zirconium salts or complexes are chosen from aluminum hydrochloride, aluminum chlorohydrex, chlorohydrex polyethylene glycol complex, aluminum chlorohydrex propylene glycol, aluminum dichlorohydrate, aluminum dichlorohydrex polyethylene glycol complex aluminum dichlorohydrex propylene glycol complex aluminum sesquichlorohydrate, aluminum sesquichlorohydrex polyethylene glycol complex, aluminum sesquichlorohydrex propylene glycol complex, alum salts, aluminum sulphate, preferably aluminum sulphate sodium aluminum lactate, aluminum zirconium aluminum zirconium octachlorohydrate, pentachlorohydrate, Aluminum z i rconium tetrachlorohydrate, aluminum trichlorohydrate, aluminum glycine, aluminum glycine complexes, octachlorohydrex pentachlorohydrex tetrachlorohydrex glycine and trichlorohydrex glycine. aluminum aluminum z i rconium z i rconium z i rconium z i rconium z i rconium 3. Composition according to claim 2, characterized in that the antiperspirant active is aluminum hydrochloride and / or aluminum sesquichlorohydrate. 4. Composition according to any one of the preceding claims, characterized in that the vinyl ester copolymer is chosen from vinyl ester copolymers having a saturated, linear or branched hydrocarbon radical, from 1 to 19 carbon atoms and at least one other monomer chosen from a vinyl ester different from the vinyl ester already present, an α-olefin having from 8 to 28 carbon atoms, an alkylvinyl ether in which the alkyl group contains from 2 to 18 carbon atoms, or an ester allyl or methallyl having a saturated, linear or branched hydrocarbon radical of 1 to 19 carbon atoms. 5. Composition according to any one of the preceding claims, characterized in that the vinyl ester copolymer is chosen from copolymers of vinyl acetate / allyl stearate, vinyl acetate / vinyl laurate, acetate vinyl / vinyl stearate, vinyl acetate / octadecene, vinyl acetate / octadecylvinyl ether, vinyl propionate / allyl laurate, vinyl propionate / vinyl laurate, vinyl stearate / octadecene-1 , vinyl acetate / dodecene-1, vinyl stearate / ethylvinyl ether, vinyl propionate / cetyl vinyl ether, vinyl stearate / allyl acetate, 2,2-dimethyl vinyl octanoate / vinyl laurate, 2,2-dimethyl allyl pentanoate / vinyl laurate, vinyl dimethyl propionate / vinyl stearate, dimethyl allyl propionate / vinyl stearate, vinyl propionate / vinyl stearate, crosslinked with 0.2 % of divinyl benzene, vinyl dimethyl propionate / laurate e vinyl, crosslinked with 0.2% divinyl benzene, vinyl acetate / octadecyl vinyl ether, crosslinked with 0.2% tetraallyloxyethane, vinyl acetate / allyl stearate, crosslinked with 0.2% divinyl benzene, vinyl acetate / octadecene-1 crosslinked with 0.2% divinyl benzene and allyl propionate / allyl stearate crosslinked with 0.2% divinyl benzene. 6. Composition according to any one of the preceding claims, characterized in that the vinyl ester copolymer is a copolymer of vinyl acetate and of allyl stearate, preferably having a molar ratio of vinyl acetate / stearate d 'allyle of 67/33. 7. Composition according to any one of the preceding claims, characterized in that the vinyl ester copolymer is present in the final composition according to the invention in a content ranging from 0.1 to 20% of active material by weight, preferably in a content ranging from 0.5 to 10% by weight of active material, more preferably in a content ranging from 0.8 to 3% by weight of active material relative to the total weight of the final composition. 8. Composition according to any one of the preceding claims, characterized in that said at least one volatile oil is chosen from volatile C ₈ -C ₆ hydrocarbon oils, preferably from C ₈ -C ₆ isoalkanes and linear C alkanes ₈ -Ci6 and their mixtures, and more particularly is isododecane. 9. Composition according to any one of the preceding claims, characterized in that the proportion of oil (s) volatile (s), varies from 50% to 100% by weight relative to the total amount in oil 1e (s). 10. Composition according to any one of the preceding claims, characterized in that the composition also comprises at least one non-volatile hydrocarbon-based oil, said non-volatile hydrocarbon-based oil being chosen from hydrogenated polyisobutene oils, ethers and acid esters. fatty, fatty alcohols and their mixtures, and more particularly fatty acid esters and is even more particularly isopropyl palmitate. 11. Composition according to any one of the preceding claims, characterized in that it further comprises one or more deodorant active agents and / or moisture absorbers, said moisture absorbers preferably being chosen from perlites, in particular expanded perlites. 12. Use, in an anhydrous composition in aerosol form containing one or more antiperspirant active agents chosen from aluminum or / and zirconium salts or complexes, of at least one vinyl ester copolymer as described in the claims 1 and 4 to 7 as an agent for limiting, reducing and / or eliminating the transfer of said composition and / or of said aluminum and / or zirconium salts or complexes. 13. Cosmetic treatment process for human perspiration, and possibly odors 5 corporeal linked to human perspiration, consisting in applying to the surface of the skin an effective amount of the composition as defined according to any one of claims 1 to 11. 10 14. Aerosol device consisting of a container comprising an aerosol composition as defined according to any one of claims 1 to 11 and by a means of dispensing said aerosol composition.