FR2992553A1 - Anhydrous deodorant cosmetic composition, useful for inhibiting and/or reducing odor of body e.g. underarm including armpits, comprises zeolites, where the composition is free of ethanol - Google Patents

Abstract

Anhydrous deodorant cosmetic composition comprises zeolites, where the anhydrous deodorant cosmetic composition is free of ethanol and not in the form of granules. Anhydrous deodorant cosmetic composition comprises zeolites having a structure of formula (M nAl nSi 9 6 - nO 1 9 2Y1H 2O) (I), where the anhydrous deodorant cosmetic composition is free of ethanol and not in the form of granules. M : alkali metal cation such as Na ion, proton or ammonium ion; n : 1-27; and Y1 : number of molecules of water of crystallization.

Description

The present invention relates to a deodorant anhydrous cosmetic composition, free of ethanol and not found in granular form, comprising one or more particular zeolites as defined herein. An anhydrous cosmetic deodorant composition comprising at least one particular zeolite and a method for treating body odor. -after. The subject of the invention is also a process for the cosmetic treatment of body odors, in particular axillary odors, and in particular armpits, consisting in using on the surface of the skin an effective amount of the deodorant cosmetic composition mentioned above. Furthermore, the present invention also relates to the use of the cosmetic composition as described above for inhibiting and / or reducing body odors, particularly axillary, and in particular armpits. Eccrine or apocrine sweat is poorly fragrant when secreted. On the other hand, its degradation by bacteria, thanks to the intermediary of enzymatic reactions, leads to the formation of malodorous compounds responsible for bad body odors. Various systems have been proposed to reduce and / or prevent the formation of these bad smells. These systems can be grouped into large families. (i) Bactericidal substances or those capable of limiting the growth of bacteria: Such substances make it possible to reduce or prevent the formation of bad odors by reducing the number of bacteria responsible for the degradation of sweat. Of these substances, the most used is Triclosan (2,4,4'-trichloro-2'-hydroxydiphenyl ether). However, such substances have the disadvantage of destroying the resident bacterial flora. Among the substances which are capable of limiting the growth of bacteria, there may be mentioned transition metal chelating agents such as EDTA or DPTA. These substances have the disadvantage of being potentially ecotoxic. (ii) Substances capable of blocking the enzymatic reactions responsible for the formation of odorant compounds: By way of particular examples, mention may be made of the inhibitors of arylsulfatase, 5-lipoxygenase, aminocylase and b-glucoronidase. (iii) Antiperspirant substances: Among the antiperspirant substances, mention may be made of aluminum and / or zirconium salts. These aluminum salts also have their own efficacy because they are antibacterials. They also play a direct role in deodorant efficiency by reducing the number of bacteria responsible for the degradation of sweat.

However, antiperspirant substances, especially aluminum salts, tend to cause skin irritation. (iv) Odor Absorbers: Odor absorbers "capture" or reduce the volatility of odorous compounds. Odor absorbers include zinc ricinoleate, certain zeolites and cyclodextrins. These compounds are difficult to formulate because they can interact with each other, which may have the effect of reducing their effectiveness. In addition, the absorption of malodorous compounds is often selective, which limits the effectiveness of these compositions. It is also known that certain types of solid particles may be used as deodorants such as the metal oxide silicates of US2005 / 063928; transition metal-modified metal oxide particles in applications US2005084464 and US2005084474, aluminosilicates such as those described in EP1658863, particles of nanoscale chitosan derivatives such as those described in US6916465. It is also known to use metal zeolites as deodorants, in particular zeolites of silver, copper or zinc as described in the patent application JP60178810.

However, these zeolites have the particular disadvantage of containing silver salts that can cause argyria and metal salts of zinc or copper that can be ecotoxic. Furthermore, it is also known to use in hydrophobic zeolite compositions with a molar ratio (SiO) y / (Al 2 O 3) with y / x greater than 15 as described in the patent application WO 02/055115. However, these cosmetic compositions based on Zeolite type Y are not yet effective enough to inhibit and / or reduce bad body odor satisfactorily. As a result, these different treatments that can be implemented on the underarm skin have a number of disadvantages, particularly in terms of effectiveness but can also cause alterations of the skin resulting in inhomogeneities of the task type pigmentary, especially on Asian skin, or dyschromias. There is therefore a real need to provide deodorant cosmetic compositions capable of reducing and / or effectively preventing the formation of unpleasant body odors while not having the disadvantages mentioned above. For this purpose, the Applicant has discovered, surprisingly, that by applying to the skin an anhydrous cosmetic composition free of ethanol not in the form of granules and comprising one or more zeolites as defined below, it was possible to reach the desired properties. Indeed, the Applicant has found that the use of particular zeolites, especially MFI type (Mordenite Framework Inverted in English), in an anhydrous cosmetic composition free of ethanol and not in the form of granules allowed inhibit and / or effectively absorb body odors, especially axillary, and especially in the armpits. In particular, it has been found that the zeolites according to the invention were more effective when they were used in an anhydrous composition as defined above than in an aqueous composition. Furthermore, the zeolites according to the invention are more effective when they are used in an anhydrous composition free of ethanol as defined above than in a composition containing ethanol. Indeed, it has been found that the zeolites according to the invention tended to agglomerate in the presence of ethanol, which made their formulation difficult, especially in an aerosol, and also reduced their effectiveness in absorbing bad odors. The cosmetic composition according to the invention thus obtained thus makes it possible to inhibit and / or effectively absorb body odors, in particular axillary odors, and especially armpits. In other words, the cosmetic composition can be used to prevent the formation of body odors, especially axillary, and especially armpits. More particularly, the use of zeolites as defined below in said cosmetic composition leads to a decrease in the intensity of body odors and a reduction of the inconveniences associated with these unpleasant odors. Indeed, the cosmetic composition reduces the intensity of body odor and reduces the inconvenience associated with these unpleasant odors, including 8 or 24 hours after its application. The composition also has the advantage of being used in retouching, that is to say when the axillary body odor has already developed. The present invention therefore particularly relates to a deodorant anhydrous cosmetic composition, free from ethanol and not in the form of granules, comprising one or more zeolites having the following structure: MnA1nSi96-n0192 YH2O wherein: M denotes a cation alkali metal, a proton or an ammonium ion, n denotes an integer ranging from 1 to 27, Y denotes the number of water molecules of crystallization.

In particular, the zeolites thus defined are present in the anhydrous cosmetic composition as a deodorant active ingredient. The invention also relates to a process for the cosmetic treatment of body odors, in particular axillary odors, and in particular armpits, consisting in using on the surface of the skin an effective quantity of the cosmetic composition as defined above. Another subject of the present invention consists in the use of a cosmetic composition as defined above for inhibiting and / or reducing body odors, in particular axillary odors, and in particular armpits. The invention also relates to an anhydrous ethanol-free deodorant cosmetic composition intended to be applied from an aerosol device comprising: (i) one or more zeolites as defined above, (ii) one or more propellants. Other objects, features, aspects and advantages of the invention will emerge even more clearly on reading the description and examples which follow. For the purposes of the present invention, the term "anhydrous cosmetic composition" is intended to mean a cosmetic composition 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. weight relative to the weight of said composition. It should be noted that it is more particularly traces of water absorbed by the raw materials used in the production of the compositions according to the invention. Even more preferentially, the deodorant composition according to the invention does not contain water.

For the purposes of the present invention, the term "cosmetic composition free of ethanol" means a cosmetic composition having an ethanol content of less than or equal to 5% by weight, more preferably less than 2% by weight, and even more more preferably less than 1% by weight relative to the weight of said composition. Preferably, the cosmetic composition according to the present invention does not contain ethanol. By "cosmetic composition not in the form of granules" means a cosmetic composition which is not in the form of solid particles, that is to say a composition which is in liquid or pasty form. As indicated above, the zeolites used in the cosmetic composition according to the present invention have the following structure: ## STR1 ## in which: M denotes an alkaline metal cation, a proton or an ammonium ion, n denotes an integer ranging from 1 to 27, Y denotes the number of water molecules of crystallization. The zeolites thus used in the deodorant cosmetic composition in accordance with the invention are Mordenite Framework Inverted (MFI) type zeolites. Preferably, the zeolites used in the cosmetic composition according to the invention are hydrophobic. For the purposes of the present invention, the term "hydrophobic zeolite" is intended to mean a zeolite having the structure defined above which promotes the trapping of non-polar or slightly polar molecules. In particular, the hydrophobic zeolites have a high content of SiO2 silica.

Preferably, the molar ratio SiO 2 / Al 2 O 3 is greater than or equal to 15, preferably greater than or equal to 25, and more preferably ranges from 25 to 1000. Preferably, M denotes a proton or an alkaline metal cation, in particular sodium ion Na +. According to one embodiment, the zeolites used in the cosmetic composition according to the invention have a pore size ranging from 5 angstroms to 7 angstroms, preferably ranging from 4.5 angstroms to 6 angstroms. Preferably, the zeolites used have a pore size of 5 angstroms. The zeolites used in the cosmetic composition according to the invention are preferably chosen from zeolites ZSM-5, ZSM-11, ZSM-12, ZSM-21 or ZSM-34 (called silicalites). More preferably, the zeolites used in the deodorant cosmetic composition according to the invention are zeolites ZSM-5. Thus, in the structure previously described, M denotes a sodium ion and Y is equal to 16. In particular, the zeolites used in the cosmetic composition according to the present invention are marketed under the name ZEOFLAIR 100 by ZEOCHEM, the zeolites marketed under the references ZEOCAT PZ-2/25, ZEOCAT PZ-2/50, ZEOCAT PZ-2/100, ZEOCAT PZ-2/1000 by ZEOLYST. The zeolites used in the cosmetic composition according to the invention can be in the form of complexes. In particular, they may be complexes containing zeolite ZSM such as ZEOFLAIR 300 which is a complex of ZSM-5 and faujasite. The zeolites may be used in the anhydrous deodorant cosmetic composition according to the invention in a content ranging from 0.5% to 70% by weight, preferably in a content ranging from 35% to 50% by weight, and more preferably in a content of ranging from 1 to 10% by weight relative to the total weight of the cosmetic composition.

The cosmetic composition according to the invention may further comprise one or more silicones. The silicones used in the cosmetic composition according to the invention make it possible to improve the cosmetic properties of the skin, in particular the softness. Preferably, the silicones are chosen from polydialkylsiloxanes, especially polydimethylsiloxanes (PDMS), and organomodified polysiloxanes comprising at least one functional group chosen from poly (oxyalkylene) groups, amino groups and alkoxy groups. Organopolysiloxanes are further defined in Walter Noll's "Chemistry and Technology of Silicones" (1968), Academie Press. They can be volatile or nonvolatile. When they are volatile, the silicones are more particularly chosen from those having a boiling point of between 60 ° C. and 260 ° C., and even more particularly from: (i) cyclic polydialkylsiloxanes containing from 3 to 7, preferably from 4 to 5 silicon atoms. It is, for example, octamethylcyclotetrasiloxane sold in particular under the name VOLATILE SILICONE® 7207 by UNION CARBIDE or SILBIONE® 70045 V2 by RHODIA, decamethylcyclopentasiloxane marketed under the name VOLATILE SILICONE® 7158 by UNION CARBIDE, and SILBIONE ® 70045 V5 by RHODIA, as well as their mixtures.

Mention may also be made of cyclocopolymers of the dimethylsiloxane / methylalkylsiloxane type, such as the VOLATILE® SILICONE FZ 3109 sold by UNION CARBIDE, of formula: ## STR3 ## The cyclic polydialkylsiloxane mixtures with organic compounds derived from silicon, such as the mixture of octamethylcyclotetrasiloxane and tetramethylsilylpentaerythritol (50/50), and the mixture of octamethylcyclotetrasiloxane and oxyhydroxide, can also be mentioned. 1,1 '- (hexa-2,2,2', 2 ', 3,3'-trimethylsilyloxy) bis-neopentane (ii) linear volatile polydialkylsiloxanes having 2 to 9 silicon atoms and having a viscosity of less than or equal to at 5.10-6 m 2 / s at 25 ° C. It is, for example, decamethyltetrasiloxane marketed in particular under the name "SH 200" by Toray Silicone, silicones entering this class are also described in the published article. in Cosmetics and Toiletries, Vol. 91, Jan. 76, p. 27-32 - TODD & BYERS "Volatile Silicone fluids for cosmetics".

Non-volatile polydialkylsiloxanes, polydialkylsiloxane gums and resins, polyorganosiloxanes modified with the above organofunctional groups and mixtures thereof are preferably used. These silicones are more particularly chosen from polydialkylsiloxanes, among which may be mentioned mainly polydimethylsiloxanes with trimethylsilyl end groups. The viscosity of the silicones is measured at 25 ° C. according to the ASTM 445 Appendix C standard. Among these polydialkylsiloxanes, mention may be made, without limitation, of the following commercial products: SILBIONE® oils of the 47 and 70 047 series or the MIRASIL® oils marketed by RHODIA, such as, for example, 70 047 V 500 000; the oils of the MIRASIL® series marketed by RHODIA; the oils of the 200 series of Dow Corning, such as DC200 having a viscosity of 60,000 mm 2 / s; - VISCASIL® oils from GENERAL ELECTRIC and some oils from SF series (SF 96, SF 18) from GENERAL ELECTRIC.

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

In this class of polydialkylsiloxanes, mention may also be made of the products sold under the names "ABIL WAX® 9800 and 9801" by GOLDSCHMIDT, which are polydialkyl (C 1 -C 20) siloxanes. The silicone gums that can be used in accordance with the invention are in particular polydialkylsiloxanes, preferably polydimethylsiloxanes having high average molecular weights of between 200,000 and 1,000,000 used alone or in a mixture in a solvent. This solvent may be chosen from volatile silicones, polydimethylsiloxane (PDMS) oils, polyphenylmethylsiloxane (PPMS) oils, isoparaffins, polyisobutylenes, methylene chloride, pentane, dodecane, tridecane or their mixtures. More particularly useful products according to the invention are mixtures such as: - mixtures formed from a hydroxyl end-of-the-chain polydimethylsiloxane, or dimethiconol (CTFA) and a cyclic polydimethylsiloxane also called cyclomethicone (CTFA) such that the product Q2 1401 marketed by the company Dow Corning; mixtures of a polydimethylsiloxane gum and a cyclic silicone such as the product SF 1214 Silicone Fluid from the company General Electric, this product is an SF 30 gum corresponding to a dimethicone, having a number average molecular weight of 500,000 solubilized in oil SF 1202 Silicone Fluid corresponding to decamethylcyclopentasiloxane; mixtures of two PDMSs of different viscosities, and more particularly of a PDMS gum and a PDMS oil, such as the product SF 1236 from the company General Electric. The product SF 1236 is the mixture of an SE 30 gum defined above having a viscosity of 20 m 2 / s and an SF 96 oil with a viscosity of 5 × 10 -6 m 2 / s.

This product preferably comprises 15% of SE gum and 85% of an SF 96 oil. The organopolysiloxane resins that can be used in accordance with the invention are crosslinked siloxane systems containing the units: R 2 SiO 2/2, R 3 SiO 1/2, RSiO 3 / 2 and SiO412 wherein R represents an alkyl having 1 to 16 carbon atoms. Among these products, those that are particularly preferred are those in which R denotes a C1-C4 lower alkyl group, more particularly methyl. Among these resins may be mentioned the product sold under the name "Dow Corning 593" or those sold under the names "Silicone Fluid SS 4230 and SS 4267" by the company General Electric and which are silicones of dimethyl / trimethyl siloxane structure. Mention may also be made of the trimethylsiloxysilicate type resins sold in particular under the names X22-4914, X21-5034 and X21-5037 by the company Shinetsu.

The organomodified silicones that may be used in accordance with the invention are silicones as defined above and comprising in their structure one or more organofunctional groups attached via a hydrocarbon-based group.

In addition to the silicones described above, the organomodified silicones may be polydiarylsiloxanes, especially polydiphenylsiloxanes, and polyalkylarylsiloxanes functionalized with the organofunctional groups mentioned above. The polyalkylarylsiloxanes are especially chosen from polydimethyl / methylphenylsiloxanes, linear and / or branched polydimethyl / diphenylsiloxanes with a viscosity ranging from 1 × 10 -5 to 5 × 10 -2 m 2 / s at 25 ° C.

Among these polyalkylarylsiloxanes, mention may be made by way of example of the products sold under the following names: SILBIONE® oils of the 70 641 series from RHODIA; - the RHODORSIL® 70 633 and 763 RHODIA series of oils; - DOW CORNING 556 COSMETIC GRAD FLUID oil from Dow Corning; the silicones of the PK series of BAYER, such as the product PK20; the silicones of the PN, PH series of BAYER, such as the PN1000 and PH1000 products; - some oils of the SF series of GENERAL ELECTRIC such as SF 1023, SF 1154, SF 1250, SF 1265.

Among the organomodified silicones, mention may be made of polyorganosiloxanes comprising: polyethyleneoxy and / or polypropyleneoxy groups optionally comprising C 6 -C 24 alkyl groups such as the products called dimethicone copolyol marketed by the company Dow Corning under the name DC 1248 or the oils SILWET® L 722, L 7500, L 77, L 711 from UNION CARBIDE and the alkyl (C 12) -methicone copolyol sold by the company Dow Corning under the name Q2 5200; substituted or unsubstituted amine groups such as the products sold under the name GP 4 Silicone Fluid and GP 7100 by the company Genesee or the products sold under the names Q2 8220 and Dow Corning 929 or 939 by the company Dow Corning. The substituted amino groups are, in particular, C1-C4 aminoalkyl groups; alkoxylated groups, such as the product sold under the name "Silicone Copolymer F-755" by SWS Silicones and Abil Wax® 2428, 2434 and 2440 by the company GOLDSCHMIDT.

The deodorant cosmetic composition may also contain one or more fats different from the silicones. The term "fatty substance" means an organic compound which is insoluble in water at ordinary room temperature (25 ° C.) and at atmospheric pressure (760 mmHg) (solubility less than 5% and preferably greater than 1%, more preferably at 0.1%). They have in their structure at least one hydrocarbon chain of at least two siloxane groups. In addition, the fatty substances are generally soluble in organic solvents under the same conditions of temperature and pressure, such as for example chloroform, ethanol, benzene, petroleum jelly or decamethylcyclopentasiloxane. The fatty substances are chosen in particular from C6-C16 lower alkanes, animal, vegetable, mineral or synthetic non-silicone oils, fatty alcohols, fatty acids, fatty acid esters and / or fatty alcohol esters and fatty acid esters. non-silicone waxes. It is recalled that for the purposes of the invention, the alcohols, esters and fatty acids more particularly have one or more linear or branched hydrocarbon groups, saturated or unsaturated, comprising 6 to 30 carbon atoms, which are optionally substituted, in particular by one or more hydroxyl groups (in particular 1 to 4). If unsaturated, these compounds may comprise one to three carbon-carbon double bonds, conjugated or otherwise.

As regards the C6-C16 lower alkanes, the latter are linear or branched, possibly cyclic. For example, the alkanes may be chosen from hexane and dodecane, isoparaffins such as isohexadecane and isodecane. Non-silicone oils that can be used in the composition of the invention include, for example: hydrocarbon-based oils of animal origin, such as perhydrosqualene; triglycerides of vegetable or synthetic origin, such as liquid triglycerides of fatty acids containing from 6 to 30 carbon atoms, for instance triglycerides of heptanoic or octanoic acids, or else, for example, sunflower, corn or soybean oils. , squash, grape seed, sesame, hazelnut, apricot, macadamia, arara, sunflower, castor oil, avocado, triglycerides of caprylic / capric acids such as those sold by the company Stearineries Dubois or those sold under the names Miglyol® 810, 812 and 818 by the company Dynamit Nobel, jojoba oil, shea butter oil; linear or branched hydrocarbons, of mineral or synthetic origin, of more than 16 carbon atoms, such as paraffin oils, volatile or not, and their derivatives, petroleum jelly, vaseline oil, polydecenes, hydrogenated polyisobutene such as Parleam®. partially fluorinated fluorinated oils; as fluorinated oils, mention may also be made of perfluoromethylcyclopentane and perfluoro-1,3-dimethylcyclohexane, sold under the names "FLUTEC® PC1" and "FLUTEC® PC3" by BNFL Fluorochemicals; perfluoro-1,2-dimethylcyclobutane; perfluoroalkanes such as dodecafluoropentane and tetradecafluorohexane, sold under the names "PF 5050®" and "PF 5060®" by the company 3M, or bromoperfluorooctyl sold under the name "Foralkyl®" by the company Atochem; nonafluoro-methoxybutane and nonafluoroethoxyisobutane; perfluoromorpholine derivatives, such as 4-trifluoromethyl perfluoromorpholine sold under the name "PF 5052®" by the company 3M. The fatty alcohols that can be used in the anhydrous deodorant cosmetic composition are saturated or unsaturated, linear or branched, and contain from 6 to 30 carbon atoms and more particularly from 8 to 30 carbon atoms. There may be mentioned, for example, cetyl alcohol, stearyl alcohol and their mixture (cetylstearyl alcohol), octyldodecanol, 2-butyloctanol, 2-hexyldecanol, 2-undecylpentadecanol, oleic alcohol or linoleic alcohol. .

The wax or waxes that may be used in the deodorant anhydrous cosmetic composition are chosen in particular from Carnauba wax, Candelila wax, and Alfa wax, paraffin wax, ozokerite, vegetable waxes. such as olive wax, rice wax, hydrogenated jojoba wax or absolute waxes of flowers such as the essential wax of blackcurrant flower sold by the company BERTIN (France), animal waxes such as beeswax , or modified beeswax (cerabellina); other waxes or waxy raw materials that can be used according to the invention are, in particular, marine waxes, such as the one sold by SOPHIM under the reference M82, and polyethylene or polyolefin waxes in general. The fatty acids that may be used in the deodorant anhydrous cosmetic composition may be saturated or unsaturated and contain from 6 to 30 carbon atoms, in particular from 9 to 30 carbon atoms. They are chosen more particularly from myristic acid, palmitic acid, stearic acid, behenic acid, oleic acid, linoleic acid, linolenic acid and isostearic acid.

With regard to the fatty acid esters and / or fatty alcohols, advantageously different from the triglycerides mentioned above, mention may be made in particular of esters of saturated or unsaturated, linear or branched C 1 -C 26 aliphatic mono- or polyacids and of saturated or unsaturated, linear or branched C1-C26 aliphatic mono- or polyalcohols, the total number of carbon of the esters being more particularly greater than or equal to 10. Among the monoesters, mention may be made of dihydroabietyl behenate; octyldodecyl behenate; isoketyl behenate; cetyl lactate; C12-C15 alkyl lactate; isostearyl lactate; lauryl lactate; linoleyl lactate; oleyl lactate; (iso) stearyl octanoate; isocetyl octanoate; octyl octanoate; cetyl octanoate; decyl oleate; isocetyl isostearate; isocetyl laurate; isocetyl stearate; isodecyl octanoate; isodecyl oleate; isononyl isononanoate; isostearyl palmitate; methyl ricinoleate acetyl; myristyl stearate; octyl isononanoate; 2-ethylhexyl isononate; octyl palmitate; octyl pelargonate; octyl stearate; octyldodecyl erucate; oleyl erucate; ethyl and isopropyl palmitates, ethyl-2-hexyl palmitate, 2-octyldecyl palmitate, alkyl myristates such as isopropyl, butyl, cetyl, 2-octyldodecyl myristate; , styryl, hexyl stearate, butyl stearate, isobutyl stearate; dioctyl malate, hexyl laurate, 2-hexyldecyl laurate. Still in the context of this variant, it is also possible to use esters of C 4 -C 22 di or tricarboxylic acids and of C 1 -C 22 alcohols and esters of mono di or tricarboxylic acids and di, tri, alcohols. C2-C26 tetra or pentahydroxy.

These include: diethyl sebacate; diisopropyl sebacate; diisopropyl adipate; di-propyl adipate; dioctyl adipate; diisostearyl adipate; dioctyl maleate; glyceryl undecylenate; octyldodecyl stearoyl stearate; pentaerythrityl monoricinoleate; pentaerythrityl tetraisononanoate; pentaerythrityl tetrapelargonate; pentaerythrityl tetraisostearate; pentaerythrityl tetraoctanoate; propylene glycol dicaprylate; propylene glycol dicaprate, tridecyl erucate; triisopropyl citrate; triisotearyl citrate; glyceryl trilactate; glyceryl trioctanoate; trioctyldodecyl citrate; trioleyl citrate, propylene glycol dioctanoate; neopentyl glycol diheptanoate; diethylene glycol diisanonate; and polyethylene glycol distearates. Among the esters mentioned above, it is preferred to use ethyl, isopropyl, myristyl, cetyl, stearyl palmitates, ethyl-2-hexyl palmitate, 2-octyldecyl palmitate, myristates of alkyls such as isopropyl, butyl, cetyl, 2-octyldodecyl myristate, hexyl stearate, butyl stearate, isobutyl stearate; dioctyl malate, hexyl laurate, 2-hexyldecyl laurate and isononyl isononanate, cetyl octanoate. The composition may also comprise, as fatty ester, esters and diesters of C 6 -C 30, preferably C 12 -C 22, fatty acid sugars. It is recalled that "sugar" is understood to mean oxygenated hydrocarbon compounds which have several alcohol functions, with or without an aldehyde or ketone function, and which contain at least 4 carbon atoms. These sugars can be monosaccharides, oligosaccharides or polysaccharides.

Suitable sugars include, for example, sucrose (or sucrose), glucose, galactose, ribose, fucose, maltose, fructose, mannose, arabinose, xylose, lactose, and their derivatives. especially alkyls, such as methyl derivatives such as methylglucose.

The esters of sugars and fatty acids may be chosen in particular from the group comprising the esters or mixtures of esters of sugars described above and of C 6 -C 30, preferably C 12 -C 22 fatty acids, linear or branched, saturated or unsaturated. If unsaturated, these compounds may comprise one to three carbon-carbon double bonds, conjugated or otherwise. The esters according to this variant may also be chosen from mono-, di-, tri- and tetraesters, polyesters and mixtures thereof. These esters may be for example oleate, laurate, palmitate, myristate, behenate, cocoate, stearate, linoleate, linolenate, caprate, arachidonates, or mixtures thereof, such as in particular the mixed oleo-palmitate, oleostearate and palmito-stearate esters. More particularly, the mono- and di-esters are used, and especially the mono- or dioleate, stearate, behenate, oleopalmitate, linoleate, linolenate, oleostearate, sucrose, glucose or methylglucose. By way of example, mention may be made of the product sold under the name Glucate® DO by the company Amerchol, which is a methylglucose dioleate.

Mention may also be made, by way of examples, of esters or mixtures of esters of fatty acid sugar: the products sold under the names F160, F140, F110, F90, F70, SL40 by the company Crodesta, respectively denoting sucrose palmito-stearates of 73% monoester and 27% di- and tri-ester, 61% monoester and 39% di-, tri- and tetraester, 52% monoester and 48% di-, tri- and tetraester, 45% monoester and 55% di-, tri- and tetraester, 39% monoester and 61% di-, tri- and tetraester , and sucrose mono-laurate; the products sold under the name Ryoto Sugar Esters, for example referenced B370 and corresponding to sucrose behenate formed from 20% monoester and 80% di-triesterpolyester; the sucrose mono-dipalmito-stearate marketed by Goldschmidt under the name Tegosoft® PSE. Preferably, the deodorant cosmetic composition comprises one or more esters of fatty acids and of fatty alcohols, in particular isopropyl palmitate. The cosmetic composition according to the invention may further comprise one or more deodorant active agents different from the deodorant active agents of the present invention. The deodorant active agents may be bacteriostatic agents or bactericidal agents acting on the germs of axillary odors, such as 2,4,4'-trichloro-2'-hydroxydiphenyl ether (®Triclosan), 2,4-dichloro-2'- hydroxy-diphenyl ether, 3 ', 4', 5'-trichlorosalicylanilide, 1- (3 ', 4'-dichlorophenyl) -3- (4'-chlorophenyl) urea (®Triclocarban) or 3,7,11- trimethyldodeca2,5,10-trienol (®Farnesol); quaternary ammonium salts such as cetyltrimethylammonium salts, cetylpyridinium salts, DPTA (1,3-diaminopropane-tetraacetic acid), 1,2 decanediol (SYMCLARIOL from Symrise); glycerol derivatives such as Caprylic / Capric Glycerides (CAPMUL MCM from Abitec), caprylate or glycerol caprate (DERMOSOFT GMCY and DERMOSOFT GMC from STRAETMANS), Polyglyceryl-2 Caprate (DERMOSOFT DG ™ from STRAETMANS), derivatives of biguanide such as polyhexamethylene biguanide salts; chlorhexidine and its salts; 4-Phenyl-4,4-dimethyl-2-butanol (SYMDEO MPP from Symrise); zinc salts such as zinc salicylate, zinc gluconate, zinc pidolate, zinc sulfate, zinc chloride, zinc lactate, zinc phenolsulfonate; salicylic acid and its derivatives such as n-octanoyl-5-salicylic acid. Deodorant actives may be odor absorbers such as zinc ricinoleate, sodium bicarbonate; other zeolites without silver, cyclodextrins and their derivatives. It can also be chelating agents such as Akzo Nobel DISSOLVINE GL-47-S, EDTA and DPTA. It may also be polyol glycerin or 1,3-propanediol (ZEMEA PROPANEDIOL marketed by Dupont Tate and Lyle Bioproducts); or enzymatic inhibitor such as triethyl citrate; or alum. In the event of incompatibility and / or to stabilize them, for example, some of the above-mentioned active agents may be incorporated into spherules, in particular ionic or nonionic vesicles, and / or nanoparticles (nanocapsules and / or nanospheres).

The deodorant active agents may be present in the cosmetic composition according to the invention at a concentration of 0.01 to 15% by weight relative to the total weight of the composition. Moreover, in order to improve the homogeneity of the composition, it is possible to use one or more suspending agents preferably chosen from hydrophobic modified montmorillonite clays, such as hydrophobic modified bentonites or hectorites. Mention may be made, for example, of the product Stearalkonium Bentonite (CTFA name) (reaction product of bentonite and quaternary ammonium chloride stearalkonium chloride), such as the commercial product sold under the name Tixogel MP 250 by the company Sud Chemie Rheologicals, United Catalysts Inc. or the product Disteardimonium Hectorite (CTFA name) (reaction product of hectorite and distearyldimium chloride) sold under the name Bentone 38 or Bentone Gel by Elementis Specialties.

The suspending agents may be present in an amount of 0.1 to 5% by weight, preferably 0.2 to 2% by weight, relative to the total weight of the composition. Preferably, the anhydrous deodorant cosmetic composition comprises one or more suspending agents preferably chosen from hydrophobic modified montmorillonite clays, such as hydrophobic modified bentonites or hectorites. Preferably, the composition comprises the product Stearalkonium Bentonite as suspending agent.

The cosmetic composition according to the invention may furthermore comprise cosmetic adjuvants chosen from softeners, antioxidants, opacifiers, stabilizers, moisturizing agents, vitamins, bactericides, preservatives, polymers, perfumes and thickeners. , propellants or any other ingredient usually used in cosmetics for this type of application. Of course, those skilled in the art will take care to choose these optional additional compounds and their amount in such a way that the advantageous properties intrinsically attached to the cosmetic composition according to the invention are not, or not substantially, impaired by the addition envisaged. . According to a preferred embodiment, the deodorant anhydrous cosmetic composition comprises one or more zeolites as defined above, one or more silicones and ethanol in a content of less than 1% by weight relative to the total weight of the composition. . According to this embodiment, the cosmetic composition preferably does not contain ethanol. According to this embodiment, the cosmetic composition comprises one or more zeolites chosen from zeolites Z SM-5. According to this embodiment, the cosmetic composition does not contain water.

The anhydrous deodorant cosmetic composition according to the invention may be packaged in pressurized form in an aerosol device or in a pump bottle; or packaged in a device provided with a perforated wall including a grid; or packaged in a device provided with a ball-on applicator ("roll-on"). According to their presentation, they can include the ingredients generally used in this type of products and well known to those skilled in the art.

Preferably, the ethanol-free anhydrous cosmetic composition according to the invention is packaged in an aerosol device. Thus, the cosmetic composition according to the invention may be pressurized and packaged in an aerosol device consisting of: (A) a container comprising an anhydrous ethanol-free deodorant composition as defined above, (B) one or more propellants and a means for dispensing said aerosol composition. Propellants generally used in this type of product and well known to those skilled in the art are, for example, dimethyl ether (DME); volatile hydrocarbons such as n-butane, propane, isobutane, and mixtures thereof, optionally with at least one chlorinated and / or fluorinated hydrocarbon; among these are the compounds sold by the company Dupont de Nemours under the names Freon® and Dymel®, and in particular mono-fluorotrichloromethane, difluorodichloromethane, tetrafluorodichloroethane and 1,1-difluoroethane sold especially under the trade name Dymel 152 A by the company DUPONT. It is also possible to use as propellant carbon dioxide, nitrous oxide, nitrogen or compressed air. Preferably, the propellant is chosen from volatile hydrocarbons, in particular n-butane, propane and isobutane, and mixtures thereof. More preferably, the propellant is isobutane.

Preferably, the anhydrous deodorant cosmetic composition is an aerosol composition comprising one or more propellants which may be present in a content ranging from 50% to 95% by weight relative to the total weight of the composition.

The dispensing means, which forms a portion of the aerosol device, is generally constituted by a dispensing valve controlled by a dispensing head, itself comprising a nozzle through which the aerosol composition is vaporized. The container containing the pressurized composition may be opaque or transparent.

It may be glass, polymeric material or metal, optionally covered with a layer of protective varnish. According to a preferred embodiment, the anhydrous deodorant cosmetic composition according to the invention is an aerosol composition comprising one or more zeolites as defined above, one or more silicones, a propellant chosen from volatile hydrocarbons, in particular isobutane. , and ethanol in a content of less than 1% by weight relative to the total weight of the composition. According to this embodiment, the cosmetic composition preferably does not contain ethanol. According to this embodiment, the cosmetic composition comprises one or more zeolites chosen from zeolites Z SM-5. The present invention also relates to a method for the cosmetic treatment of body odors, in particular axillary odors, and in particular armpits, consisting in using on the surface of the skin an effective amount of the cosmetic composition as defined above. Another subject of the present invention consists in the use of a cosmetic composition as defined above for inhibiting and / or reducing body odors, in particular axillary odors, and in particular armpits.

In particular, the cosmetic composition is used to inhibit body odors, in particular axillary, and in particular armpits. In the same way, the cosmetic composition is used to reduce body odors, particularly axillary, and in particular armpits. The invention also relates to the use of said composition for preventing the formation of body odors, particularly axillary, and in particular armpits.

The following examples serve to illustrate the present invention.

EXAMPLES Example 1 1. Tested Compositions The following aerosol compositions (A) and (B) are prepared from the following ingredients, the proportions of which are indicated in percentages by weight unless otherwise indicated.

Composition A Composition B Isobutane (1) 85 85 Stearalkonium Bentonite (2) 0.39 0.39 Zeolite (3) 5.25 - Zeolite (4) - 5.25 palmitate 0.9 0.9 isopropyl (5) Dimethicone and 1.65 1.65 dimethiconol (6) Citrate of 1.05 1.05 triethyl (7) Dimethicone (8) 5.76 5.76 (1) sold under the commercial reference A31 by the company AEROPRES (2) sold under the commercial reference Tixogel MP 250 by ROCKWOOD ADDITIVES (3) sold under the commercial reference Zéoflair 100 by ZEOCHEM (4) sold under the commercial reference Zéoflair 300 by ZEOCHEM (5) sold by COGNIS ( 6) sold under the commercial reference Mirasil D-DML LV by the company BLUESTAR (7) sold under the trade reference CITROFLEX 2 by VERTELLUS (8) sold under the commercial reference Belsil DM10 by the company WACKER 2. Deodorant activity 2.1. Protocol The panel studied is composed of about twenty volunteers (divided between women and men of all ages), which emits strong axillary odors, that is to say axillary odors whose intensity has received, through of experts, a score greater than 5 on a scale from 1 (imperceptible axillary odor intensity) to 9 (extremely strong axillary odor intensity). This panel used a shower gel for seven days before the start of the test without applying any other product (washing, deodorant, antiperspirant) under the armpits. On each subject of the panel, an armpit treated with the composition (A) or (B) is compared to an untreated armpit. On each subject, 1.2 grams of the composition (A) or (B) are applied to an armpit after wiping the armpit. The armpit witness is also wiped. The intensity of the perspiration odor and the discomfort caused by this odor are evaluated after 24 hours after the application of the composition (A) and after 8 and 24 hours after the application of the composition (B ). This assessment is done by experts who sniff armpits directly. 2.2. Result The results obtained for: - the intensity of the transpiration odor (scale ranging from 1, corresponding to an imperceptible axillary odor intensity, to 9, corresponding to an intensity of the extremely strong odor), - the unpleasantness associated with the odor of perspiration which can be characterized by the hedonic value (scale from 1, extremely unpleasant odor, to 9, extremely pleasant odor), are represented in the tables below. The percentages of variation are calculated on the averages according to the formula: A% = (armpit after treatment - untreated armpit) X 100 Untreated armpit a. Composition Time Decrease Decrease after application of unpleasant intensity of axillary odor axillary odor of armpit treated treated armpit compared to report at armpit bare armpit. naked 24 hours 17% 27% 20 b. Composition B Time Decrease Decrease after application of intensity Unpleasantness of axillary odor Treatment treated axillary odor compared to armpit bare armpit 8 hours 10% 18% 24 hours 15% 31 It is found that the compositions (A) and (B) can effectively reduce the intensity of the axillary odor and the discomfort associated with this axillary odor even after 8 hours or 24 hours of application. Thus, the compositions tested make it possible to improve the axillary odor of the volunteers.

EXAMPLE 2 1. Test Composition The composition (C) in the form of the following aerosol is prepared from the following ingredients, the proportions of which are indicated in% in grams of active material unless otherwise indicated. Composition C Isobutane (1) 85 Stearalkonium Bentonite (2) 0.39 Zeolite (3) 5.25 Isopropyl palmitate (4) 4.5 Isododecane (5) 3.81 Triethyl citrate (6) 1.05 (1) sold under the trade reference A31 by the company AEROPRES (2) sold under the trade reference Tixogel MP 250 by the company ROCKWOOD ADDITIVES (3) sold under the commercial reference Zéoflair 100 by the company Zeochem (4) sold by the company COGNIS (5) sold under the commercial reference Citroflex 2 by the company VERTELLUS (6) sold by the company INEOS20 2. Deodorant activity Inhibition of the formation of odors 2.1. Protocol The protocol used is identical to that described in example 1. 2.2. Result The reduction of the axillary odor and the discomfort associated with this axillary odor is evaluated 8 and 24 hours after the application of the composition (C) in the same manner as in Example 1.

Time Decrease Decrease after intensity Uncomfortable application of axillary odor treated axillary odor compared to treated compared to armpit bare armpit naked 8 hours 8% 13% 24 hours 9% 11% On note the composition (C) can effectively reduce the intensity of axillary odor and the discomfort associated with this axillary odor even after 8 hours or 24 hours of application.

It is also found that the composition (C) is less effective than an identical composition containing silicones and less isopropyl palmitate.

EXAMPLE 3 The composition (D) in the form of the following aerosol is prepared from the following ingredients, the proportions of which are indicated in grams per gram of active ingredient unless otherwise indicated. Composition D Isobutane (1) 85 Stearalkonium 0.39 Bentonite (2) Zeolite (3) 1 Isopropyl palmitate 0.9 (4) Dimethicone and 1.65 dimethiconol (5) Triethyl citrate (6) 1.05 Dimethicone (7) Qsp 100 (1) sold under the trade designation A31 by the AEROPRES company (2) sold under the commercial reference Tixogel MP 250 by ROCKWOOD ADDITIVES (3) sold under the commercial reference Zéoflair 100 by ZEOCHEM (4) sold by COGNIS (5) sold under the trade reference Mirasil D -DML LV by the company BLUESTAR (6) sold under the commercial reference CITROFLEX 2 by VERTELLUS (7) sold under the commercial reference Belsil DM10 by the company WACKER20 2. Axillary odor absorption test On twelve users In the case of conventional deodorant, the composition (D) is vaporized on the armpits during the day, that is to say, when the odor of perspiration was present. Of the twelve users, it is found that the elimination of odors was perceived immediately.

Claims (14)

REVENDICATIONS1. A deodorant anhydrous cosmetic composition, free from ethanol and not in the form of granules, comprising one or more zeolites having the following structure: MnA1nSi96-n0192 YH2O in which: M denotes an alkaline metal cation, a proton or an ammonium ion , n denotes an integer from 1 to 27, Y denotes the number of water molecules of crystallization. 2. Cosmetic composition according to claim 1, characterized in that the SiO 2 / Al 2 O 3 molar ratio is greater than or equal to 15, preferably greater than or equal to 25, and more preferably ranges from 25 to 1000. 3. Cosmetic composition according to claim 1 or 2, characterized in that the zeolites are hydrophobic. 4. Cosmetic composition according to any one of claims 1 to 3, characterized in that M denotes an alkali metal cation, in particular the sodium ion Na +. 5. Cosmetic composition according to any one of claims 1 to 4, characterized in that the zeolites used in the cosmetic composition according to the invention have a pore size ranging from 5 angstroms to 7 angstroms, preferably ranging from 4.5 angstroms at 6 angstroms. 6. Cosmetic composition according to any one of claims 1 to 5, characterized in that the zeolites are chosen from zeolites ZSM-5, ZSM-11, ZSM-12, ZSM-21 or ZSM-34 and zeolites ZEOCAT PZ -2/25, ZEOCAT PZ-2/50, ZEOCAT PZ-2/100, ZEOCAT PZ-2 / 1000. any of what it understands in 7. Cosmetic composition according to the preceding claims, further characterized by one or more silicones. claim 7, 8. Cosmetic composition according to characterized in that the silicones are chosen from polydialkylsiloxanes, especially polydimethylsiloxanes (PDMS), and organomodified polysiloxanes comprising at least one functional group chosen from poly (oxyalkylene) groups, amino groups and alkoxy groups. 9. Cosmetic composition according to any one of the preceding claims, characterized in that it further comprises one or more fatty substances chosen from C6-C16 lower alkanes, fatty alcohols, fatty acid esters, esters and the like. fatty alcohol, non-silicone oils of mineral origin of more than 16 carbon atoms, or of plant or synthetic origin and non-silicone waxes. 10. Cosmetic composition according to any one of claims 1 to 8, characterized in that it comprises one or more zeolites as defined according to any one of claims 1 to 6, one or more silicones and ethanol in a content of less than 1% by weight relative to the total weight of the composition. 11. Cosmetic composition according to any one of the preceding claims, characterized in that it is packaged in pressurized form in an aerosol device or in a pump bottle; or packaged in a device provided with a perforated wall including a grid; or packaged in a device provided with a ball applicator. 12. Cosmetic composition according to claim 11, characterized in that it is intended to be applied from an aerosol device. 13. A method of cosmetic treatment of body odors, particularly axillary, and in particular armpits, consisting in implementing on the surface of the skin an effective amount of cosmetic composition as defined according to any one of claims 1 to 12. 14. Use of a cosmetic composition as defined in any one of claims 1 to 12 for inhibiting and / or reducing body odors, particularly axillary, including underarms.