MXPA99001418A - Use of 1,2 pentanodiol in a cosmetic or dermatological composition which has an aqueous dispersion of filmogen polymer particles, and cosmetic or dermatological composition comprising these constituents - Google Patents

Abstract

The present invention relates to the use in a cosmetic-dermatological composition susceptible to be applied to the skin, the keratin fibers, the semi-mucous membranes, and / or mucous membranes, of an aqueous dispersion of film-forming polymer particles associated with an antimicrobial protection system. , particularly antimbacterial and / or antifungal, comprising 1,2-pentanediol. The invention relates in particular to a make-up composition of lips or of the body

Description

USE OF 1,2-PENTANODIOL IN ONA COMPOSITION - COSMETIC OR DERMATOLOGICAL CONTAINING AN AQUEOUS DISPERSION OF PARTICLES OF POLYMER F LMOGEN, AND COSMETIC OR DERMATOLOGICAL COMPOSITION COMPRISING THESE CONSTITUENTS.

The present invention concerns a cosmetic or dermatological composition capable of being applied to the skin / semi-mucosal membranes, mucous membranes and / or keratin fibers. This composition comprises, in particular, an aqueous dispersion of fumono polymer particles and 1,2-pentanediol, and can be used as a treatment and make-up product.

It is advantageous to use an aqueous dispersion of smoke polymer particles in the cosmetic or dermatological compositions, as shown, for example, in Japanese patent applications H8-225433 and H8-222434 and EP patent applications? -A-0679384, EP-A- 0687461 and EP-A-0775483.

Such compositions contain important proportions of aqueous phase, generally greater than 50%. These aqueous compositions are perfectly tolerated by the body. On the other hand, the important part that water occupies makes them privileged targets for the REF. 29372 intrusion of moisture, bacteria and other germs. This microbial contamination can occur during the manufacture of the product and especially during the course of its use by the consumer and is particularly important in the case of lipsticks and nails for aqueous nails that require the use of an applicator soaked in water. Continuous in a bottle that, from the fact of the frequent swings in the bottle containing the product, favors the recontamination of the product in each use.

It has therefore been found necessary to adjust an antimicrobial protection for cosmetic and dermatological compositions containing an aqueous dispersion of smoke polymer particles.

The adjustment of an antimicrobial protection system for this type of composition has been complicated by numerous limitations in the selection of antimicrobial agents and particularly: limitations of legislation, the selected antimicrobial agents that should be authorized for an application on mucous membranes and the semi-mucous; - solubility limitations: in the absence of fat phase in the formula, the antimicrobial protection system must be completely water-soluble; - application temperature limitations: the water-solubility of the antimicrobial agent must be in total cold, since the formula does not support heating: when an aqueous dispersion of polymer particles is heated, the particles flocculate at a temperature higher than 45 ° C; pH limitations: the antimicrobial protection system must be effective at the pH of the formula, and particularly at pHs from 6 to 8.5, the pH of a composition applied on the skin that is generally neutral and this in the absence of an acidic pH regulator; in fact, it is known that at acid pH most bacteria and fungi do not resist; compatibility limitations with the aqueous dispersion of polymer particles that exhibit numerous incopatibilities; for example, chlorhexidine, which is generally used as a preservative in cosmetics and in dermatology, can not be used in the presence of an aqueous dispersion of polymer particles.

After having carried out numerous tests to achieve a system of antimicrobial protection, particularly antibacterial and / or antifungal, which satisfies all the above criteria, the applicant has discovered that 1,2-pentanediol was perfectly well adapted to be used as a antimicrobial agent in an aqueous dispersion of smoke polymer particles.

The 1,2-pentanediol also called pentylene glycol (CTFA name) is known in cosmetics as bactericidal and fungicidal (G. Proserpio and R. Cattaneo, Cosmetic and Toiletries, De. It. No. 3/1996, 11-13, 16- 19) and as a hydration regulating agent for the skin (application WO-A-95 01151). It is also described for the topical treatment of the skin and the scalp on account of its antimicrobial effect in the application WO-A-97 30692.

However, it has never been used in the presence of an aqueous dispersion of polymer particles.

The applicant has discovered that 1,2-pentanediol, due to its antibacterial and antifungal properties, not only protects the aqueous dispersion of polymer particles, but also has plasticizer properties of the polymer in dispersion, which limits the use of classic plasticizers such as other glycols (glycerol, propylene glycol) and then decrease the stickiness to the touch of the composition. It also has moisturizing properties, which is important for the skin and lips, as well as antigel properties and also the advantage of making the composition brighter than when using a classic preservative, and this without altering the long-lasting properties and / or "without transfer" of this composition, which is totally surprising and very sought after for nail varnices and labials.

Thus, an object of the invention is the use in a cosmetic or dermatological composition susceptible to be applied to the skin, the keratin fibers, the semi-mucous and / or the mucous membranes, of an aqueous dispersion of fumed polymer particles associated with a antimicrobial protection system, particularly antibacterial and / or antifungal, comprising 1,2-pentanediol.

Another object of the invention is the use for applying, protecting and / or treating non-therapeutically and / or for the manufacture of a composition intended to therapeutically treat the skin, keratin fibers, semi-mucous membranes and / or mucous membranes, in particular the lips of the face, and the body, of an aqueous dispersion of smoke polymer particles associated with an antimicrobial protection system, particularly antibacterial and / or antifungal, comprising 1,2-pentanediol.

Another object of the invention is a cosmetic or dermatological composition that can be applied to the skin, keratin fibers, semi-mucous membranes and / or mucous membranes, which contain an aqueous dispersion of film-forming polymer particles associated with an antimicrobial protection system. , particularly antibacterial and / or antifungal, comprising 1,2-pentanediol.

Another object of the invention is a composition for make-up of the lips or of the body comprising an aqueous dispersion of film-forming polymer particles associated with an antimicrobial protection system, particularly antibacterial and / or antifungal, comprising 1,2-pentanediol.

Another object of the invention is a method of antimicrobial protection of a composition containing an aqueous dispersion of film-forming polymer particles, which consists of introducing into the composition an antimicrobial protection system, particularly antibacterial and antifungal, comprising the 1,2- pentanediol It has been found that the composition according to the invention is easily applicable and easily and evenly spread on the skin, the semi-mucous membranes and the mucous membranes, in particular on the lips of the face and the body.

The composition according to the invention finds a particularly interesting application in the field of the treatment and / or make-up of the skin of the face and the body, of the keratin fibers, of the mucous membranes and / or of the semi-mucous membranes. The inner part of the lower eyelid is particularly understood to be mucosa; by semi-mucous, the lips of the face are more particularly understood; Keratin fibers are particularly understood as eyebrows, eyelashes, hair and nails.

The composition according to the invention allows obtaining a homogeneous film, which has a light texture and remains comfortable to wear throughout the day. The film is not sticky after drying, is "non-transfer" and / or long-lasting.

The composition according to the invention then finds a very particular application as a composition to be applied on the lips and the body, particularly as a lipstick and semi-permanent makeup product of the body.

On the other hand, the film obtained can be very bright, or more or less matte, depending on the nature of the constituents of the composition, hence a range more than 1. extended makeup products, bright or matt, -to choose.

The composition according to the invention contains at least one aqueous dispersion of film-forming polymer particles. It can be presented in the form of aqueous or hydroalcoholic fluid, paste or emulsion. In the latter case, it may contain fatty substances such as oils and waxes.

Among the smoke-forming polymers which can be used in the present invention, mention may be made of synthetic polymers, polycondensates or radical types, polymers of natural origin, and mixtures thereof.

Mention may also be made, among polycondensates, of anionic, cationic, non-ionic or amphoteric polyurethanes, acrylic polyurethanes, polyurethanes-polyvinylpyrrolidones, polyester-polyurethanes, polyether-polyurethanes, polyureas, polyureas-polyurethanes, and mixtures thereof . The polyurethane can be, for example, a polyurethane, polyurea / urethane or polyurea, aliphatic, cycloaliphatic or aromatic copolymer, contained, alone or as a mixture. - at least one sequence of linear or branched and / or cycloaliphatic and / or aromatic aliphatic polyester origin, and / or - at least one sequence of aliphatic and / or cycloaliphatic and / or aromatic polyether origin, and / or - at least one sequence siliconeated, whether or not substituted, branched or not, for example polydimethylsiloxane or polymethylphenylsiloxane, and / or - at least one sequence containing fluorinated groups.

The polyurethanes as defined in the invention can also be obtained from polyesters, branched or non-branched, or from alkides containing mobile hydrogens which are modified by reaction with a diisocyanate and a bifunctional organic compound (for example dihydro, diamino or hydroxyamino) ), which also contain either a carboxylic acid or carboxylate group, or a sulphonic acid or sulfonate group, or even a neutralizable tertiary amine group or a quaternary ammonium group.

Mention may also be made of polyesters, amide polyesters, fatty chain polyesters, polyamides and epoxy ester resins.

The polyesters can be obtained, in a known manner, by polycondensation of aliphatic or aromatic diacids with aliphatic or aromatic diols or polyols. As aliphatic diacids, succinic acid, glutaric acid, adipic acid, pimelic acid, siberic acid or sebacic acid can be used. As aromatic diacids, terephthalic acid or isophthalic acid can be used, or else a derivative such as phthalic anhydride. As aliphatic diols, ethylene glycol, propylene glycol, diethylene glycol, neopentyl glycol, cycloexane dimethanol, 4,4 '- (1-methylpropylidene) bisphenol can be used. As polyols, glycerol, pentaerythritol, sorbitol, trimethylol propane can be used.

The amide polyesters can be obtained analogously to polyesters, by polycondensation of diacids with diamines or amino alcohols. As the diamine, ethylenediamine, hexamethylenediamine, meta- or para-phenylenediamine can be used. As the amino alcohol, monoethanolamine can be used.

As the monomer which carries the anionic group which can be used during the polycondensation, there may be mentioned, for example, dimethylol propionic acid, trimellitic acid or a derivative such as trimellitic anhydride, sodium salt of sulfo-3-pentanediol acid, sodium salt of 5-sulfo-1,3-benzene dicarboxylic acid.

The fatty chain polyesters can be obtained by the use of fatty chain diols at the time of the polycondensation.

The epoxy ester resins can be obtained by polycondensation of fatty acids with a condensate at the a,? - diepoxy ends.

The radical-type polymers can be particularly polymers, or copolymers, acrylic and / or vinyl. These polymers can result from the polymerization of monomers to ethylenic unsaturation having at least one acid group and / or esters of these acidic monomers and / or amides of these acidic monomers. Anionic radical polymers, ie prepared from at least one acid group monomer, are preferably used.

As the monomer carrying the acid group which can be used during the radical polymerization, mention may be made of the α, β-ethylenic unsaturated carboxylic acids such as acrylic acid, methacrylic acid, crotonic acid, maleic acid, itaconic acid as well as 2-acrylamido-2-methyl propane sulfonic acid. Methacrylic acid can preferably be used.

The acrylic polymers can result from the copolymerization of monomers selected from acrylic or methacrylic acid and the esters and / or amides of acrylic acid or methacrylic acid. As examples of ester type monomers, there may be mentioned more particularly alkyl methacrylates, in particular C 1 -C 20 alkyl and preferably C 1 -C β such as butyl methacrylate, isobutyl methacrylate, methacrylate 2- ethyl exil, lauryl methacrylate. As examples of amide-type monomers, mention may be made of N-tert-butyl acrylamide and N-tert-octyl acrylamide.

Acrylic polymers obtained by copolymerization of monomers to ethylenic unsaturation containing hydrophilic groups, preferably non-ionic in nature, such as hydroxyethyl acrylate, 2-hydroxypropyl acrylate, hydroxyethyl methacrylate, methacrylate 2- may be used. hydroxypropyl.

Vinyl polymers can result from the homopolymerization or copolymerization of monomers selected from vinyl esters, styrene, ethylstyrene or butadiene. As examples of vinyl esters, mention may be made of vinyl acetate, vinyl neodecanoate, vinyl pivalate, vinyl benzoate and vinyl tert-butyl benzoate. in particular, these monomers can be polymerized with acidic monomers and / or their esters and / or their amides, such as those mentioned above.

It is also possible to use acrylic copolymers / silicones, or even nitrocellulose / acrylic copolymers.

The list of monomers given is not limiting and it is possible to use any monomer known to the person skilled in the art in the categories of acrylic and vinyl monomers.

According to the invention, a copolymer selected from among the copolymers methacrylic acid / methacrylate, methacrylic acid / α-methyl styrene, methacrylate / styrene, methacrylic acid / styrene, methacrylate / methacrylate, methacrylate / α-methylstyrene is preferably used as the film-forming polymer. Preferably, a copolymer arising from the copolymerization of alkyl methacrylate monomers in Ci-Cs, optionally associated with acrylic acid, styrene and α-methylstyrene is used.

The polymers of natural origin, possibly modified, can be selected from the shellac resin, the sandraraca gum, the dammars, the éle is, the copals, the cellulose derivatives, and their mixtures.

Mention may then be made of the polymers resulting from the radical polymerization of one or more radical monomers inside and / or partially on the surface, of pre-existing particles of at least one polymer selected from the group consisting of polyurethanes, polyureas, polyesters, polyestersamides and / or alkyds. These polymers generally called hybrid polymers.

The aqueous dispersion comprising one or more smoke-forming polymers can be prepared by the person skilled in the art on the basis of his general knowledge.

The dry matter content of the aqueous dispersions according to the present invention can be of the order of 5-70% by weight, and preferably 30-60%, based on the total weight of the dispersion.

The composition may comprise 1-60% by weight, preferably 5-40% by weight of dry matter of smoke-forming polymers.

The size of the polymer particles in aqueous dispersion can be between 5 and 500 nm, and is preferably between 20 and 150 nm, which makes it possible to obtain a film having an outstanding brilliance.

The antimicrobial protection system according to the invention comprises: - in particular from 0.1 to 10% by weight, preferably from 1 to 7%, and optimally from 3 to 5% of 1,2-pentanediol; 0 to 5% by weight, favorably 0.05 to 2%, and preferably 0.2 to 1% of sodium methyl p-hydroxybenzoate; and - 0 to 40% by weight, favorably 0.5 to 30%, and preferably 1 to 10% ethyl alcohol.

The composition can, moreover, contain at least one water-soluble dye and / or at least one pigment, and / or at least one filler and / or at least one pearlizing agent, used in the usual way in the area of cosmetics and makeup.

By pigments, it is necessary to understand white or colored particles, mineral or organic, insoluble in the medium, intended to color and / or opaque the composition, or to filter the rays ü.V. The pigments may be present in the composition in a proportion of 0-35% by weight of the final composition, and preferably in the proportion of 1-20%. They can be white or colored, mineral and / or organic, of usual or nanometric size. Mention may be made, among pigments and / or mineral nanompigments, of titanium, zirconium or cerium dioxides, as well as zinc, iron or chromium oxides and ferric blue. Among the organic pigments, mention may be made of carbon black, barium, strontium, calcium (DC Red No. 7), aluminum and cochineal carmine lacquers.

Among the water-soluble dyes, mention may be made of the poppy disodium salt, the disodium salt of alizarin green, the quinoline yellow, the trisodium salt of amaranth, the disodium salt of tartrazine, the monosodium salt of rhodamine, the disodium salt of fuchsin , xanthophyll, and their mixtures.

By fillers, it is necessary to include colorless or white, mineral or synthetic particles, laminar or non-laminar. By nacres it is necessary to understand iridescent particles, particularly produced by certain molluscs in their shell or synthesized. These fillers and nacres serve in particular to modify the texture of the composition.

The nacres can be present in the composition in a proportion of 0 to 20% of the total weight of the composition, preferably at a high index of the order of 1 to 15%. Among the nacres which can be used in the invention, mention may be made of mica coated with titanium oxide, iron oxide, natural pigment or bismuth oxychloride, such as colored titanium mica.

The fillers may be present in a proportion of 0 to 35% of the total weight of the composition, preferably 0.5 to 15%. Particular mention may be made of talc, mica, kaolin, nylon powders (Orgasol in particular) and polyethylene powders, Teflon, starch, boron nitride, copolymer microspheres such as Expancel (Nobel Industrie), Politrap (Dow Corning) and the silicone resin microspheres (Toshiba Tospearl, for example).

It is also possible to add any known additive such as thickening agents, for example clays, gums, silicas, cellulose derivatives, a synthetic polymer such as an acrylic polymer or an associative polymer of polyurethane type, a natural rubber such as xanthan gum, agents for oiliness, dispersants, antifoaming agents, UV filters, perfumes, active cosmetics, pharmaceutical or dermatological, vitamins and their derivatives, biological materials and their derivatives, tenso-active to disperse pigments, waxes, oils.

Of course, the person skilled in the art will watch to select this or these possible additives and / or their quantity, in such a way that the favorable properties of the composition according to the invention are not or substantially not altered by the planned association.

The pH of the final composition obtained is preferably lower than 9.5, favorably comprised between 5 and 8.5, and preferably between 6 and 8.

This composition must, of course, be capable of being deposited on a support such as the skin, semi-mucous membranes or mucous membranes and keratin fibers.

The composition according to the invention can be presented in a fluid, gelled, semi-solid, soft paste, even solid form such as sticks or sticks.

She finds in particular an application as a make-up product, particularly as a lipstick, make-up base, rouge, eye shadows, eyeliner, mascara, nail varnish, or even a temporary or semi-permanent tattoo body makeup product. . It is also possible to visualize an application in the area of treatment compositions, solar or self-tanning compositions, dermatological compositions or even pharmaceutical compositions for application on the skin, semi-mucous and / or mucous membranes.

The invention is illustrated in more detail in the following examples.

EXAMPLE 1 A fluid lipstick having the following composition is prepared: - Oxide of iron coffee 4.0 g. - soda methyl p-hydroxybenzoate 0.4 g.

- Mix of polyethylene wax, polytetrafluoroethylene in emulsion in a water / isopropanol mixture (50/47/3) 4.5 g.

- Methacrylic acid / methoxy polyethylene glycol / lauryl methacrylate copolymer in 40% solution in water / PPG (50/50) (dispersant) 0.06 g - Acrylic copolymer in aqueous emulsion with 60% solid matter, sold under the name "NEOCRYL A-523" by the company ZENECA 50.0 g.

- Acrylic acid / ethyl acrylate copolymer in unstabilized 28% aqueous emulsion (acrylic gelling agent) 5.35 g. - 60% oxyethylenated oxypropylenated polydimethylsiloxane solution in dipropylene glycol monomethyl ether (antifoam) 0.1 g. - 96 ° non-denatured ethyl alcohol 5 g. - 1, 2-pentanediol 3 g. - sterilized demineralized water c.b.p. 100 g a) First grind the pigments in a mixture containing 1,2-pentanediol and water. b) Teflon wax is mixed in the polymer dispersion at room temperature. c) A part of the water, the alcohol and the soda methyl methyl p-hydroxybenzoate are mixed together, then added to the polymer dispersion obtained in b).

To this mixture obtained in c) is added the antifoam then the mixture a), under stirring, at room temperature, as well as the dispersant.

Complete with remaining water, alcohol and methyl p-hydroxybenzoate to obtain 100 g. Of composition.

The antimicrobial efficiency tests carried out on this formula by the artificial contamination test or "challenge test" on 6 germs at 2 days, 7 days and 14 days, at room temperature, have shown that the antimicrobial protection conferred by the system: -Methyl methylhydroxybenzoate (0.4%), ethyl alcohol (5%) and 1,2-pentanediol (3%) was satisfactory since the set of 6 germs inoculated Escherichia Coli, Pseudomonas aeruginosa, Staphylococcus Aureus, Enterococcus Faecalis, Candida Albicans and Aspergillus Niger, are decontaminated 7 days after inoculation.

The results are the following: EXAMPLES 2 TO 4 It has also been tried formulas of same composition as that of example 1 by varying the amounts of the constituents of the antimicrobial protection system as indicated below The antimicrobial protection has been evaluated in the same way as in example 1, on the same germs.

Antimicrobial protection is acceptable if at most 2 out of 6 germs tested are not decontaminated after 14 days. It is satisfactory if the set of 6 germs inoculated are decontaminated 7 days after the inoculation.

The results are indicated below. They show that the antimicrobial protection systems of the formulas of Examples 2 to 4 according to the invention surprisingly assure these formulas an effective antimicrobial protection despite the slight amount of preservative used, namely 0.4% methyl p-hydroxybenzoate soda EXAMPLE 2 EXAMPLE 3 EXAMPLE 4 COMPARATIVE EXAMPLES 5 TO 11 Formulas of the same composition as that of Example 1 have been tested, but replacing the antimicrobial protection system of the invention with conventional conservative systems such as those indicated below: * Germal 115: imidazolidinyl urea.

The antimicrobial protection of the formulas has been evaluated by the artificial contamination test or "Challenge Test", as in the preceding examples, on the same germs.

The results were judged satisfactory, They are indicated below.

EXAMPLE 5 EXAMPLE 6 EXAMPLE 7 EXAMPLE 8 EXAMPLE 9 EXAMPLE 10 EXAMPLE 11 The antimicrobial efficiency tests carried out on the formulas containing classical conservative systems have shown that the antimicrobial protection conferred by these conservative systems was insufficient, even when using chlorhexidine digluconate, which is known to be an excellent preservative.

EXAMPLE 12 A fluid labial of the following composition is prepared: - Oxide of iron coffee 4.0 g. - 1,2-pentanediol 3.0 g.

- Ethyl alcohol 5.0 g. - soda methyl p-hydroxybenzoate 0.4 g.

- Aqueous dispersion of 49% solid polyurethane, sold under the name "SANCURE 2255" by the Société SANCOR. c.b.p. 100.0 g.

The preparation procedure is the same as in Example 1.

EXAMPLE 13 A semi-permanent make-up of the body according to example 1 is prepared, which optionally contains a sufficient amount of perfume.

EXAMPLE 14 A fluid lipstick identical to Example 1 is prepared, except that the acrylic copolymer "NEOCRYL A-1090" is replaced by "NEOCRYL A-523" which is an acrylic copolymer in aqueous emulsion with 60% solid matter sold by the Société ZENECA .

It is noted that in relation to this date the best method known by the applicant to carry out the aforementioned invention is that which is clear from the present description of the invention.

Having described the invention as above, it is claimed as property in the following,

Claims (28)

1. Use in a cosmetic or dermatological composition characterized in that an aqueous dispersion of film-forming polymer particles associated with an antimicrobial protection system is capable of being applied to the skin, keratin fibers, semi-mucous membranes and / or mucosal fibers. , particularly antibacterial and / or antifungal, comprising 1,2-pentanediol.

2. Use to make up, protect and / or treat nontherapeutically and / or for the manufacture of a composition intended to therapeutically treat the skin, keratin fibers, semi-mucosal fibers and / or mucous membranes, in particular the lips of the face or body, of an aqueous dispersion of film-forming polymer particles characterized in that it is associated with an antimicrobial protection system, particularly antibacterial and / or antifungal, comprising 1,2-pentanediol.

3. Use according to one of the preceding claims, characterized in that its purpose is to obtain a glossy, non-tacky film after drying, without transfer and / or long duration.

4. Use according to one of the preceding claims, in a make-up composition for the face or body, in particular a lipstick, a make-up base, a rouge or shadows for the eyes, a mask for the eyelashes, a eyeliner, a varnish for nails, in a treatment composition, in a solar composition and / or self-tanning, in a dermatological or pharmaceutical composition, to apply on the skin, the semi-mucosal and / or mucous membranes.

5. Use according to one of the preceding claims, in a composition of lipstick or treatment of the lips, or body makeup.

6. Use according to one of the preceding claims, characterized in that the film-forming polymer is selected from anionic, cationic, non-ionic or amphoteric polyurethanes, acrylic polyurethanes, polyurethanes-polyvinylpyrrolidones, polyester-polyurethanes, polyether-polyurethanes, polyureas , polyureas, polyureas-polyurethanes, polyesters, polyesters amides, polyesters of fatty chain, polyamides, resins epoxyesters, polymers and / or copolymers, acrylic and / or vinyl, acrylic copolymers / silicones, copolymers nitrocellulose / acrylics, the polymers of natural origin t optionally modified, the polymers resulting from the radical polymerization of one or more radical monomers inside and / or partially on the surface, of pre-existing particles of at least one polymer selected from the group constituted by polyurethanes, polyureas, poly esters, polyestersamides and / or alkyds, and mixtures thereof.

7. Use according to claim 6, characterized in that the film-forming polymer is selected from acrylic and / or vinyl polymers and copolymers.

8. Use according to claim 6, characterized in that the smoke polymer is a copolymer selected from the copolymers methacrylic acid / methacrylate, methacrylic acid / α-methylstyrene, methacrylate styrene, methacrylic acid / styrene, methacrylate / methacrylate and methacrylate / α-methylstyrene.

9. Use according to claim 6, which is characterized in that the film-forming polymer is a copolymer resulting from the copolymerization of C 1 -C 8 alkyl methacrylate monomers, optionally associated with acrylic acid, styrene and a-methylstyrene.

10. Use according to one of the preceding claims, characterized in that the size of the polymer particles in aqueous dispersion is between 5 and 500 nm, preferably between 20 and 150 nm.

11. Use according to one of the preceding claims, characterized in that the antimicrobial protection system comprises 0.1 to 10% by weight of 1,2-pentanediol, 0 to 5% by weight of sodium methyl p-hydroxybenzoate and / or 0 to 40%. % by weight of ethyl alcohol.

12. The use according to claim 11, characterized in that the antimicrobial protection system comprises 1 to 7% by weight of 1,2-pentanediol, 0.05 to 2% by weight of methyl p-hydroxybenzoate soda and / or 0.5 to 30% by weight. weight of ethyl alcohol.

13. Use according to claim 12, characterized in that the antimicrobial protection system comprises 3 to 5% by weight of 1,2-pentanediol, 0.2 to 1% by weight of methyl p-hydroxybenzoate soda and / or 1 to 10% by weight. weight of ethyl alcohol.

14. Cosmetic or dermatological composition susceptible to be applied on the skin, keratin fibers, semi-mucous and / or mucous membranes, which is characterized in that it comprises an aqueous dispersion of film-forming polymer particles associated with an antimicrobial protection system, particularly antibacterial and / or antifungal, comprising 1,2-pentanediol.

15. Composition according to claim 14, characterized in that it is presented in the form of a makeup composition, of a treatment composition, of a solar or self-tanning composition, of a dermatological or pharmaceutical composition, to apply on the skin, the keratin fibers , the semi-mucous membranes and / or mucous membranes.

16. Composition according to claim 14 or 15, characterized in that it is presented in the form of a lipstick, a make-up base, a rouge, or shade for parasites, a eyeliner, a mask, a varnish for nails, a makeup product of the body.

17. A lip or body makeup composition according to claim 14.

18. Composition according to claims 14 to 17, which is characterized in that the film-forming polymer is selected from anionic, cationic, non-ionic or amphoteric polyurethanes, acrylic polyurethanes, polyurethanes-polyvinylpyrrolidones, polyester-polyurethanes, polyethers -polyurethanes, polyureas, polyureas / polyurethanes, polyesters, polyesters amides, polyesters of fatty chain, polyamides, resins epoxyesters, polymers and / or copolymers, acrylic and / or vinyl, acrylic copolymers / silicones, the nitrocellulose / acrylic copolymers, the polymers of natural origin, optionally modified, the polymers resulting from the radical polymerization of one or more radical monomers in the interior and / or partially on the surface, of pre-existing particles of at least one polymer selected in the group consisting of polyurethanes, polyureas, polyesters, amide polyesters and / or alkyds, and mixtures thereof.

19. Composition according to claim 18, which is characterized in that the fumino polymer is selected from vinyl and / or acrylic polymers and copolymers.

20. Composition according to claim 19, which is characterized in that the film-forming polymer is a copolymer selected from the copolymers methacrylic acid / methacrylate, methacrylic acid /} -methylstyrene, methacrylate / styrene, methacrylic acid / styrene, methacrylate / methacrylate and methacrylate / α-methylstyrene.

21. Composition according to claim 19 or 20, characterized in that the film-forming polymer is a copolymer resulting from the copolymerization of alkyl methacrylate monomers in Ci-Cs, optionally associated with acrylic acid, styrene and α-methylstyrene.

22. Composition according to one of claims 14 to 21, which is characterized by the fact that the particle size of the polymers in aqueous dispersion is between 5 and 500 nm, preferably between 20 and 150 nm.

23. composition according to one of claims 14 to 22, which is characterized in that the antimicrobial protection system comprises 0.1 to 10% by weight of 1,2-pentanediol, 0 to 5% by weight of methyl p-hydroxybenzoate soda and / or 0 to 40% by weight. weight of ethyl alcohol.

24. Composition according to claim 23, which is characterized in that the antimicrobial protection system comprises 1 to 7% by weight of 1,2-pentanediol, 0.05 to 2% by weight of methyl p-hydroxybenzoate soda and / or 0.5 to 30% by weight of ethyl alcohol.

25. Composition according to claim 24, which is characterized in that the antimicrobial protection system comprises 3 to 5% by weight of 1,2-pentanediol, 0.2 to 1% of methyl p-hydroxybenzoate soda and / or 1 to 10 % by weight of ethyl alcohol.

26. Composition according to one of claims 14 to 25, characterized in that it also comprises at least one water-soluble dye and / or at least one pigment and / or at least one filler and / or at least one pearlizing agent.

27. Composition according to one of claims 14 to 26, characterized in that it also comprises at least one additive selected from the thickening agents, dispersants, antifoaming agents, oils, waxes and cosmetic or dermatological active ingredients. .

28. Antimicrobial protection method of a composition that is characterized in that it contains an aqueous dispersion of film-forming polymer particles, which consists of introducing into the composition an antimicrobial protection system, particularly antibacterial and / or antifungal, comprising 1,2-pentanediol.