FR2939647A1 - Nail polish, for cosmetic makeup and/or non-therapeutic care of nails, comprises drying oil e.g. linseed oil, film-forming polymer e.g. ethyl cellulose and metal salt e.g. metal octoate and/or linoleate - Google Patents

Abstract

Nail polish (I) comprises at least one drying oil, at least one film-forming polymer and at least one metal salt.

Description

The present invention relates to a nail polish comprising at least one drying oil, at least one film-forming polymer and at least one metal salt. This nail polish composition can be applied to human nails or even false nails.

The present invention further relates to the method of makeup and / or non-therapeutic care of the corresponding nails. The nail polish composition, which may be colored or transparent, may be used as a base for nail varnish or base coat in the English terminology, as a nail makeup product, as a finishing composition, also called a top-coat, to be applied to the nail. nail makeup product or even as a nail care product. It is common to use, in the nail polish compositions, film-forming agents to obtain, after depositing on the nail, a strong film having good strength. Currently, nitrocellulose is still the most commonly used film-forming agent in nail polishes with optimized holding properties. However, these nail polishes comprising nitrocellulose have the disadvantage of not being stable to heat and storage. This results in particular a yellowing of these compositions over time.

Moreover, the introduction of large amounts of nitrocellulose conditions the composition of the organic solvent phase of the nail polish which must then be compatible with this film-forming agent. The present invention is specifically intended to provide a nail polish composition comprising a reduced content of nitrocellulose or nitrocellulose free, having good stability over time, and allowing the formation of a homogeneous, glossy film, and / or not brittle. The inventors have thus discovered that it was possible to obtain such a composition comprising less than 5% by weight of dry matter of nitrocellulose relative to the total weight of the composition, or even free of nitrocellulose, by using at least one drying oil, at least one film-forming polymer and at least one metal salt.

Thus, according to one of its aspects, the present invention relates to a nail polish comprising at least one drying oil, at least one film-forming polymer and at least one metal salt. Such nail polish allows in particular a good stability over time and to obtain a solid, glossy film and / or non-brittle. According to another aspect, the invention also relates to a cosmetic process for makeup and / or non-therapeutic care of the nails comprising the application on the nails of at least one layer of a nail polish as defined above. According to yet another of its aspects, the invention also relates to the use of a nail polish as defined above to obtain, after depositing on the nail, a homogeneous, glossy and non-brittle film. The nail polish according to the invention comprises a cosmetically acceptable medium, that is to say a non-toxic medium that can be applied to the keratin materials of human beings, in particular the nails.

The present invention also relates to a synthetic makeup carrier comprising a makeup obtained by the method of the invention.

The nail polish according to the invention has a liquid or gelled texture; it differs in particular from a patch or flexible article comprising at least one layer of polymeric material and an adhesive layer, intended to be glued and adjusted by virtue of its deformability properties, on the nail. In other words, the nail polish according to the invention is typically applied in the form of layers superimposed on the surface of the nails or false makeup nails, for example with the aid of a brush.

Drying oils A nail polish according to the invention comprises at least one drying oil. By drying oil is meant an oil which, when spread in a thin layer and then exposed to air, turns into a solid film.

In particular, in the context of the present invention, the term drying oil is intended to denote oils, and preferably triglycerides, comprising conjugated double bonds, preferably comprising at least two conjugated double bonds, and preferably comprising at least three double bonds. conjugate bonds. The drying oils according to the invention may be of natural origin. Advantageously, the drying oil may be chosen from drying vegetable oils such as linseed oil, Chinese wood (or Canton) oil, oitica oil, vernonia oil, lemon oil, flaxseed oil, pomegranate oil, calendula oil; esters of these vegetable oils; alkyd resins obtained from these vegetable oils; and their mixtures. The alkyd resins are polyesters comprising hydrocarbon chains of fatty acids, obtained in particular by polymerization of polyols and polyacids or their corresponding anhydride, in the presence of fatty acids. These fatty acids are present, especially in the form of triglycerides, in the majority of natural oils, such as in particular the oils mentioned above. The drying oil suitable for carrying out the present invention can be modified by chemical reaction. In particular, it can be refined and / or partially polymerized. As such, there may be mentioned blown oils and standolies, maleinized oils, epoxidized or cooked. According to a particular embodiment of the invention, the drying oil is a refined linseed oil. An oil can be refined especially in three successive stages. The refined linseed oil according to the invention can thus result from a degumming step, in particular to obtain a degummed oil, followed by a bleaching step, in particular for bleaching, and then a neutralization step. According to one particular embodiment of the invention, the drying oil of the invention is a modified linseed oil according to at least one of the three steps mentioned above, ie which has undergone either a degumming stage or a fading step, either a neutralization step, or a succession of these steps. According to yet another particular embodiment of the invention, the drying oil of the invention is a modified linseed oil which has undergone two stages among those previously considered.

According to another particular embodiment of the invention, the drying oil is a blown linseed oil. The blowing of an oil is characterized in particular by a polymerization of said oil with oxygen in the air. The blown oil can be obtained in particular by blowing air through the heated oil.

According to a particular embodiment, the cosmetic compositions according to the invention may comprise from 5 to 95% by weight, in particular from 5 to 40% by weight, in particular from 5 to 15% by weight of drying oil relative to the weight. total of the composition.

Metallic Salts A nail polish according to the invention comprises at least one metal salt, and preferably at least two distinct metal salts.

The combination of at least one drying oil with one or more metal salt (s) makes it possible during drying to form a film by crosslinking with oxygen in the air. The metal salt (s) accelerates (in particular) the drying of natural drying oils.

Advantageously, the metal salt used comprises less than 5% cobalt relative to the total weight of the metal in the metal salts, or is advantageously free of cobalt, in particular in order to obtain a more favorable toxicological profile. According to a particular embodiment, the metal salt (s) conforming to the invention is (are) chosen from the salts of manganese, calcium, zirconium and zinc, strontium, lithium, cerium and vanadium. According to a particular embodiment, the metal salt is an organic salt. It can in particular have the following formula (I): in which: M is chosen from manganese, calcium, zirconium, zinc, strontium, lithium, cerium and vanadium; and R is a linear or branched (C1-C25) alkyl radical which may optionally contain 1 to 3 unsaturations.

According to a particular embodiment, R is a radical (C6-C20) alkyl, linear or branched, possibly containing 1 to 2 unsaturations. In a particular embodiment, the metal salt may take the form of octoate, linoleate, octanoate, oleate, stearate, laurate or naphthenate. According to a particular embodiment, a nail polish according to the invention comprises at least one manganese salt. According to another particular embodiment of the invention, the nail polish composition according to the invention comprises several metal salts, in particular with the aim of increasing the speed of crosslinking of the drying oil. According to a particular embodiment of the invention, the cosmetic nail varnish compositions according to the invention comprise from 0.001 to 2% by weight, in particular from 0.01 to 1% by weight, in particular from 0.1 to 1% by weight. 0.5% by weight of metal relative to the dry extract. Examples of commercial products of metal salts are given below: Octa-Soligen Manganese 6HS, Octa-Soligen Zirconium HS, and Octa-Soligen Calcium HS, marketed by OMG BORCHERS GMBH. The xHS indication (6HS, 12HS and 5HS) used above indicates that the commercial product or raw material contains x percent of metal based on the total weight of the commercial product or metal salt. According to one particular embodiment of the invention, a nail polish according to the invention may comprise at least two different metal salts chosen from the salts as defined above. According to another particular embodiment of the invention, the metal salts of a nail polish of the invention may comprise at least one primary metal salt and at least one secondary metal salt, or may consist of a primary metal salt and a secondary metal salt.

In the context of this particular embodiment, the primary metal salt may be chosen from manganese salts, cerium salts and vanadium salts, and more particularly, is a manganese salt; and the secondary metal salt may be chosen from zirconium, zinc, lithium and strontium salts, and more particularly is a zirconium salt. In the context of this particular embodiment, the metal salts of a nail polish of the invention may comprise at least one manganese salt and at least one zirconium salt. According to yet another preferred embodiment of the invention, a nail polish of the invention may comprise at least one primary metal salt as defined above, at least one secondary metal salt as defined above, and at least one salt. auxiliary metal. In the context of this last particular embodiment, the auxiliary metal salt may be chosen from calcium salts. According to a particularly preferred embodiment, the metal salts of a nail polish of the invention may comprise at least one manganese salt, at least one zirconium salt and at least one calcium salt, or may consist of a salt. Manganese, a zirconium salt and a calcium salt. In the context of this particularly preferred embodiment, the manganese salt may especially promote surface drying and complete drying of the film; the zirconium salt can promote deep drying, inducing a regular drying of the film; and the calcium salt can make it possible to develop a synergetic effect between the manganese salt and the zirconium salt. Still according to this particularly preferred embodiment, the nail polish composition of the invention may comprise at least one primary metal salt as defined above in a content ranging from 0.005 to 0.1% by weight of metal relative to dry extract, especially from 0.01 to 0.05% by weight of metal relative to the dry extract. It may further comprise at least one secondary metal salt as defined above in a content ranging from 0.005 to 0.8% by weight of metal relative to the solids, in particular from 0.03 to 0.5% by weight. of metal with respect to the dry extract. It may finally further comprise at least one auxiliary metal salt as defined above in a content ranging from 0.03 to 0.3% by weight of metal relative to the dry extract.

CHARACTERIZATION OF THE DRY EXTRACT The dry matter content, commonly referred to as dry extract, ie the non-volatile matter content, can be measured in different ways. Examples include oven drying methods, drying methods by exposure to infrared radiation.

Preferably, the amount of dry matter of the nail polish compositions according to the invention is measured by heating the sample with infrared rays of 2 m to 3.5 m wavelength. The substances contained in said compositions which have a high vapor pressure, evaporate under the effect of this radiation. The measurement of the loss of weight of the sample makes it possible to determine the dry extract of the composition. These measurements are carried out using a Mettler LP16 commercial infrared desiccator. This technique is perfectly described in the documentation of the device supplied by Mettler. The measurement protocol is as follows: about 1 g of the composition is spread on a metal cup. This, after introduction into the desiccator, is subjected to a temperature of 120 ° C for one hour. The wet mass of the sample, corresponding to the initial mass and the dry mass of the sample, corresponding to the mass after exposure to radiation, are measured using a precision balance. The dry matter content is calculated as follows: Dry extract = 100 x (dry mass / wet mass). The nail polish compositions according to the invention are characterized by a solids content of between 10 and 60% and more particularly between 20 and 40% by weight.

Filmo2ene Polymer A nail polish according to the invention comprises at least one film-forming polymer.

For the purposes of the present invention, the term "film-forming polymer" denotes a polymer capable of forming, on its own or in the presence of an auxiliary film-forming agent, an isolatable film, in particular a continuous and adherent film, on a support, in particular on the nails. In the composition, it is possible to use a single film-forming polymer or a mixture of film-forming polymers. This film-forming polymer may be chosen from the group consisting of synthetic polymers, of radical type or of polycondensate type, polymers of natural origin and their mixtures. A film-forming polymer that is suitable for the invention may be chosen in particular from: polysaccharide derivatives, such as cellulose or guar gum derivatives. A polysaccharide derivative suitable for the invention may be a polysaccharide ester or alkyl ether. By polysaccharide ester or alkyl ether is meant a polysaccharide formed of repeating units comprising at least two identical or different rings and having a degree of substitution per saccharide unit of between 1.9 and 3, preferably of between 2.2 and 2. , 9, and more particularly between 2.4 and 2.8. By substitution is meant the functionalization of the hydroxyl groups as ester and / or alkyl ether functions, and / or the functionalization of the carboxylic groups as ester functions. In other words, it may be a polysaccharide partially or totally substituted with ester and / or alkyl ether groups. Preferably, the hydroxyl groups may be substituted by ester and / or alkyl ether C2-C4 functions. Mention may in particular be made of cellulose esters, such as cellulose acetate, cellulose acetobutyrates or cellulose acetopropianates; cellulose alkylethers such as ethylcelluloses, and ethylguars; synthetic polymers such as polyurethanes, acrylic polymers, vinyl polymers, polyvinylbutyrals, alkyd resins and ketone / aldehyde resins, resins derived from aldehyde condensation products, such as arylsulfonamide formaldehyde resins such as resin toluene sulphonamide formaldehyde, aryl-sulphonamide epoxy resins or ethyl tosylamide resins; polymers of natural origin, such as plant resins such as dammars, elemi, copals, benzoin; gums such as shellac, sandalwood gum and putty gum. As film-forming polymer, the toluene sulfonamide formaldehyde resins Ketjentflex MS80 from the company Akzo or Santolite MHP, Santolite MS 80 from the company Firmeonnier or Resimpol 80 from the company PAN AMERICANA can be used in particular, the alkyd resin BECKOSOL ODE 230-70-E from the company DAINIPPON, ACRYLOID acrylic resin B66 from the company ROHM & HAAS, the polyurethane resin TRIXENE PR 4127 from BAXENDEN, the acetophenone / formaldehyde resin sold under the reference Synthetic Resin SK by Degussa. According to one particular embodiment, the film-forming polymer is chosen from polysaccharides and polysaccharide derivatives, preferably from ethers and esters of polysaccharides, in particular from C2-C4, and more preferentially is chosen from cellulose acetobutyrates, cellulose acetopropianates, cellulose acetate, ethylcelluloses, ethylguars and mixtures thereof. According to a particularly preferred embodiment, the film-forming polymer is chosen from ethylguar and ethylcellulose.

According to a particular embodiment, a nail polish of the invention comprises a total content of film-forming polymer of between 1 and 60% by weight, in particular between 2 and 30% by weight, in particular between 5 and 15% by weight, compared to the total weight of the nail polish.

According to a preferred embodiment, a nail polish composition according to the invention comprises less than 5% by weight of nitrocellulose solids, relative to the total weight of the composition, preferably less than 3% by weight, preferably less than 1.5% by weight, preferably less than 1% by weight. According to a particularly preferred embodiment, the nail polish composition of the invention is completely free of nitrocellulose.

According to a particular embodiment of the invention, a nail polish according to the invention comprises at least ethylguar, at least blown linseed oil and at least manganese, zirconium and calcium salts.

Physiologically acceptable medium The composition of the invention further comprises a physiologically acceptable medium. A nontoxic medium is thus designated and in particular capable of being applied to the nails. This medium may be of the organic solvent type or of the dispersion type of an organic phase in an aqueous continuous phase. The physiologically acceptable medium of the composition generally comprises at least one volatile solvent. This volatile solvent may be chosen in particular from volatile organic solvents, water and mixtures thereof.

Organic solvent medium The nail polish composition according to the invention may comprise at least one organic solvent medium comprising one or more non-aqueous compounds which are liquid at room temperature, also called oils or organic solvents. The organic solvent may be chosen from: ketones that are liquid at room temperature, such as methyl ethyl ketone, methyl isobutyl ketone, diisobutyl ketone, isophorone, cyclohexanone or acetone; alcohols which are liquid at room temperature, such as ethanol, isopropanol, diacetone alcohol, 2-butoxyethanol or cyclohexanol; propylene glycol ethers which are liquid at room temperature, such as propylene glycol monomethyl ether, propylene glycol monomethyl ether acetate or dipropylene glycol mono-butyl ether; cyclic ethers such as γ-butyrolactone; short chain esters (having from 3 to 8 carbon atoms in total) such as ethyl acetate, methyl acetate, propyl acetate, isopropyl acetate, acetate and the like; n-butyl, isopentyl acetate, methoxypropyl acetate, t-butyl acetate, butyl lactate; ethers which are liquid at ambient temperature, such as diethyl ether, dimethyl ether or dichlorodiethyl ether; alkanes which are liquid at ambient temperature, such as decane, heptane, dodecane or cyclohexane; alkyl sulphoxides such as dimethyl sulphoxide; aldehydes that are liquid at room temperature, such as benzaldehyde or acetaldehyde; ethyl 3-ethoxypropionate; carbonates such as propylene carbonate, dimethyl carbonate, acetals such as methylal; - and their mixtures.

The organic medium may comprise at least one volatile silicone oil. For the purposes of the invention, the term "volatile oil" means an oil capable of evaporating on contact with keratin materials in less than one hour at ambient temperature and atmospheric pressure. The volatile organic solvent (s) and the volatile oils of the invention are organic solvents and volatile cosmetic oils which are liquid at ambient temperature and have a non-zero vapor pressure at ambient temperature and atmospheric pressure, in particular ranging from 0.degree. 13 Pa at 40,000 Pa (10-3 to 300 mm Hg), in particular ranging from 1.3 Pa to 13 000 Pa (0.01 to 100 mm Hg), and more particularly ranging from 1.3 Pa to 1300 Pa (0.01 to 10 mmHg). The volatile silicone oils may be volatile linear or cyclic, especially those having a viscosity of 8 centistokes (8 × 10 -6 m 2 / s), and especially having from 2 to 7 silicon atoms, these silicones optionally comprising alkyl or alkoxy groups having from 1 to 10 carbon atoms. As volatile silicone oil that can be used in the invention, there may be mentioned in particular octamethylcyclotetrasiloxane, decamethylcyclopentasiloxane, dodecamethylcyclohexasiloxane, heptamethylhexyltrisiloxane, heptamethyloctyltrisiloxane, hexamethylisiloxane, octamethyltrisiloxane and decamethyl tetrasiloxane, dodecamethylpentasiloxane and mixtures thereof.

Mention may also be made of linear alkyltrisiloxane linear oils of general formula (I): ## STR1 ## where R represents an alkyl group comprising from 2 to 4 carbon atoms and from which one or more hydrogen atoms may be substituted by a fluorine or chlorine atom, Among the oils of general formula (I), mention may be made of: 3-butyl 1,1,1,3,5,5,5 -heptamethyl trisiloxane, 3-propyl-1,1,1,3,5,5,5-heptamethyltrisiloxane, and 3-ethyl-1,1,1,3,5,5,5-heptamethyltrisiloxane, corresponding to the oils of formula (I) for which R is respectively a butyl group, a propyl group or an ethyl group.

Preferably, the solvent is selected from short chain esters having from 3 to 8 carbon atoms in total, such as ethyl acetate, methyl acetate, propyl acetate, ethyl acetate and the like. isopropyl, n-butyl acetate, isopentyl acetate, methoxypropyl acetate, butyl lactate and mixtures thereof. The organic solvent medium may preferably be ethyl acetate or ethanol. The organic solvent medium may represent from 10 to 95% by weight, preferably from 15 to 80% by weight, and more preferably from 20 to 70% by weight relative to the total weight of the composition.

Aqueous medium The composition according to the invention may also comprise at least one aqueous medium, constituting an aqueous phase, which can form a continuous phase in which an organic phase, as described above, is dispersed. The aqueous phase may consist essentially of water; it may also comprise a mixture of water and organic solvent (s) miscible with water (miscibility in water greater than 50% by weight at 25 ° C) such as lower mono-alcohols having 1 to 5 carbon atoms such as ethanol, isopropanol, glycols having 2 to 8 carbon atoms, such as propylene glycol, ethylene glycol, 1,3-butylene glycol, dipropylene glycol, C3-C4 ketones, C2-C4 aldehydes.

The continuous aqueous phase (water and optionally organic solvent miscible with water) may be present in a proportion ranging from 30 to 90% by weight, preferably from 50 to 80% by weight relative to the total weight of the composition. According to another embodiment, the composition comprises a continuous organic solvent medium and less than 10% by weight of water, preferably less than 5% by weight of water relative to the total weight of the composition.

Auxiliary Film-forming Agent To improve the film-forming properties of the nail polish composition, an auxiliary film-forming agent may be provided. Such an auxiliary film-forming agent may be chosen from all the compounds known to those skilled in the art, as being capable of fulfilling the desired function, and in particular be chosen from plasticizers and coalescers of the polymer (s). film (s). Thus, the composition may further comprise at least one plasticizer and / or a coalescing agent. In particular, mention may be made, alone or as a mixture, of the usual plasticizers and coalescence agents, such as: glycols and their derivatives, such as diethylene glycol ethyl ether, diethylene glycol methyl ether, diethylene glycol butyl ether or else diethylene glycol hexyl ether, ethylene glycol ethyl ether, ethylene glycol butyl ether, ethylene glycol hexyl ether; the glycol esters; propylene glycol derivatives and in particular propylene glycol phenyl ether, propylene glycol diacetate, dipropylene glycol ethyl ether, tripropylene glycol methyl ether and diethylene glycol methyl ether, propylene glycol butyl ether; esters of acids, in particular carboxylic acids, such as citrates, phthalates, adipates, carbonates, tartrates, phosphates, sebacates; oxyethylenated derivatives, such as oxyethylenated oils, especially vegetable oils, such as castor oil; Oils of natural origin, in particular non-drying, chosen from oils comprising at least one fatty acid chosen from caprylic acid, capric acid, lauric acid, myristic acid and palmitic acid; , stearic acid, oleic acid, ricinoleic acid, linoleic acid, linolenic acid, arachidic acid, gadoleic acid, behenic acid, erucic acid, brassic acid , cetoleic acid, lignoceric acid, nervonic acid. In particular, these oils are chosen from triglycerides consisting of esters of fatty acids and of glycerol whose fatty acids may have various chain lengths of C4 to C24, the latter may be linear or branched, saturated or unsaturated. These oils include heptanoic or octanoic triglycerides, peanut oil, babassu oil, coconut oil, grape seed oil, cotton oil, corn oil, corn germ oil, mustard seed oil, palm oil, rapeseed oil , sesame, soya, sunflower, wheat germ, canola, apricot, mango, castor, shea, avocado, olive, sweet almond, almond, peach , nuts, hazelnut, macadamia, jojoba, alfalfa, poppy, pumpkin, squash, blackcurrant, evening primrose, millet, barley, quinoa, rye, safflower, bancoulier , passionflower, rose hip, shea butter or triglycerides caprylic / capric acids, and - their mixtures.

The type and amount of plasticizing and / or coalescing agent may be selected by those skilled in the art based on their general knowledge. For example, the content of plasticizing agent (s) and / or of coalescence can range from 0.01% to 20% and in particular from 0.5% to 10% by weight relative to the total weight of the plasticizer. composition. Gelling agent The nail polish composition according to the invention may further comprise a gelling agent. This gelling agent may in particular be chosen from: hydrophobic silicas, such as those described in document EP-A-0 898 960, and for example sold under the references AEROSIL R812 by the company Degussa, CAB-O-SIL TS-530 CAB-O-SIL TS-610, CAB-O-SIL TS-720 by Cabot, AEROSIL R972, AEROSIL R974 by Degussa; clays such as montmorillonite, modified clays, such as bentones, for example, hectorite stearalkonium, stearalkonium bentonite, polysaccharide alkyl ethers (in particular in which the alkyl group contains from 1 to 24 carbon atoms, preferably from 1 to 10, more preferably 1 to 6, and more especially 1 to 3) such as those described in EP-A-898 958.

The total proportion of gelling agent (s) in the compositions according to the invention may range from 0.01 to 15% by weight, relative to the total weight of the composition, preferably from 0.5 to 15% by weight. and more preferably from 0.5 to 10% by weight. Coloring material The nail polish composition according to the invention may, in addition, comprise one or more dyestuffs chosen from soluble dyes and pulverulent dyestuffs such as pigments, pearlescent agents and flakes well known to humans. of career. The dyestuffs may be present in the composition in a content of from 0.01% to 50% by weight, based on the weight of the composition, preferably from 0.01% to 30% by weight. By pigments, it is necessary to include particles of any shape, white or colored, mineral or organic, insoluble in the physiological medium, intended to color the composition. By nacres, it is necessary to include particles of any iridescent form, in particular produced by certain shellfish in their shell or else synthesized. The pigments may be white or colored, mineral and / or organic. Among the inorganic pigments, titanium dioxide, optionally surface-treated, zirconium oxide or cerium oxides, and oxides of zinc, iron (black, yellow or red) or chromium, the violet of manganese, ultramarine blue, chromium hydrate and ferric blue, metal powders such as aluminum powder, copper powder. Among the organic pigments, mention may be made of carbon black, D & C type pigments, and lacquers based on cochineal carmine, barium, strontium, calcium, aluminum. Mention may also be made of effect pigments such as particles comprising an organic or inorganic substrate, natural or synthetic, for example glass, acrylic resins, polyester, polyurethane, polyethylene terephthalate, ceramics, aluminas and whether or not covered with substances. metal such as aluminum, gold, copper, bronze, or metal oxides such as titanium dioxide, iron oxide, chromium oxide, mineral or organic pigments and mixtures thereof. The pearlescent pigments may be chosen from white pearlescent pigments such as mica coated with titanium, or bismuth oxychloride, colored pearlescent pigments such as titanium mica coated with iron oxides, titanium mica coated with, inter alia, blue. ferric oxide or chromium oxide, titanium mica coated with an organic pigment of the aforementioned type as well as pearlescent pigments based on bismuth oxychloride. It is also possible to use pigments with goniochromatic properties, in particular 10 liquid crystal or multilayer. The dyes are, for example, Sudan Red, DC Red 17, DC Green 6, 13-carotene, soybean oil, Sudan Brown, DC Yellow 11, DC Violet 2, DC Orange 5 , yellow quinoline. The coloring material may also be chosen from optical brighteners. The composition may further comprise fibers optionally coated with optical brighteners.

Filler The composition according to the invention may also comprise one or more fillers, in particular in a content ranging from 0.01% to 50% by weight, relative to the total weight of the composition, preferably ranging from 0.01%. at 30% by weight. By fillers, it is necessary to include particles of any form, colorless or white, mineral or synthetic, insoluble in the medium of the composition regardless of the temperature at which the composition is manufactured. These fillers serve in particular to modify the rheology or the texture of the composition. The fillers can be mineral or organic of any shape, platelet, spherical or oblong, irrespective of the crystallographic form (for example sheet, cubic, hexagonal, orthorhombic, etc.). Mention may be made of talc, mica, silica, kaolin, polyamide (nylon) powders (Orgasol from Atochem), poly-13-alanine and polyethylene, tetrafluoroethylene polymer powders (Teflon), lauroyl-lysine, starch, boron nitride, polymeric hollow microspheres such as those of polyvinylidene chloride / acrylonitrile such as Expancel (Nobel Industrie), copolymers of acrylic acid (Polytrap Dow Corning) and silicone resin microbeads (Toshiba Tospearls, for example), elastomeric polyorganosiloxane particles, precipitated calcium carbonate, magnesium carbonate and hydrocarbonate, hydroxyapatite, hollow silica microspheres (Silica Maprecos beads), glass or ceramic microcapsules, metal soaps derived from organic carboxylic acids having from 8 to 22 carbon atoms, preferably from 12 to 18 carbon atoms, for example zinc, magnesium or lithium tetarate, zinc laurate, magnesium myristate.

Additives The composition may further comprise other ingredients commonly used in cosmetic compositions and known to those skilled in the art as being capable of being incorporated into a nail polish composition. Such ingredients may be chosen from oils, waxes, free antiradical agents, spreading agents, wetting agents, dispersing agents, defoamers, preservatives, surfactants, perfumes, neutralizers, stabilizers, antioxidants, actives that can be selected from essential oils, UV / solar filters, moisturizers, vitamins, proteins, ceramides, plant extracts, etc. ; and their mixtures.

The compositions according to the invention may furthermore comprise, as active ingredients, nail care agents such as hardeners for keratin materials, active agents acting on the growth of the nail, for example methylsulfonyl methane and / or or active agents for treating various conditions localized at the level of the nail, such as onichomycosis.

Of course, those skilled in the art will take care to choose this or these optional additional compounds, and / or their quantity, in such a way that the advantageous properties of the composition for use according to the invention are not, or not substantially, altered by the addition envisaged. According to another aspect, the subject of the invention is a nail polish product comprising: i) a container delimiting at least one compartment, said container being closed by a closure element and ii) a composition according to the invention which is arranged inside said compartment.

The container can be in any suitable form. It may especially be in the form of a bottle and may be, at least partly, a material such as glass. However, materials other than glass can be used such as thermoplastic materials such as PP or PE or as a metal.

The closure element can be coupled to the compartment by screwing in the closed position of the container. Alternatively, the coupling between the closure element and the container can be done other than by screwing, in particular by snapping. The container is preferably equipped with an applicator which may be in the form of a brush consisting of at least one tuft of bristles. Alternatively, the applicator is in form other than a brush, for example in the form of a spatula or a foam tip. The invention is further illustrated in the following examples which are presented by way of illustration and not limitation of the invention. Unless otherwise indicated, the amounts are given as a percentage by weight of raw material relative to the total weight of the composition.

EXAMPLES Example 1 Ethylguar 10% Flax Linseed Oil LIN 10% BLOW CV 5P (~ ~ Manganese Octoate (L) 0.6% Zirconium Octoate) 1.8% Calcium Octoate, Neutral (4) 1.6% Acetate of ethyl 76% (1) marketed by the company Novance (2) Octa-Soligen Manganese 6HS marketed by OMG BORCHERS GMBH (3) Octa-Soligen Zirconium 12 HS marketed by OMG BORCHERS GMBH (4) Octa-Soligen Calcium 5 HS sold by the company OMG BORCHERS GMBH Reference example (without metal salt) Ethylguar 10% Ethyl acetate 90% 25 Operating method: Ethylguar and linseed oil are solubilized in ethyl acetate. The metal salts are then added.

Films of these two compositions are coated at a thickness of 50 m wet on contrast map.

Result: After 24 hours of drying at 30 ° C, the composition of Example 1 forms a solid film, glossy, and adherent on contrast map. The reference composition forms a less adherent film that can be removed from the contrast map.

Claims (16)

REVENDICATIONS1. Nail polish, characterized in that it comprises at least one drying oil, at least one film-forming polymer and at least one metal salt. 2. Nail polish according to claim 1, characterized in that the drying oil is chosen from linseed oil, Chinese wood oil, oitica oil, vernonia oil, flaxseed oil, pomegranate oil, calendula oil; esters of these vegetable oils; alkyd resins obtained from these vegetable oils, and mixtures thereof; said drying oil may optionally be modified by chemical reaction. 3. Nail polish according to any one of the preceding claims, characterized in that the drying oil is refined or blown linseed oil. 4. Nail polish according to any one of the preceding claims, characterized in that the drying oil is present in a content ranging from 5 to 95% by weight, in particular from 5 to 40% by weight, in particular from 5 to 15% by weight relative to the total weight of the nail polish. 5. Nail polish according to any one of the preceding claims, characterized in that the metal salt comprises at least one metal salt selected from the salts of manganese, calcium, zirconium, zinc, strontium, lithium, cerium and vanadium. 6. Nail polish according to claim 5, characterized in that the metal salt is an organic salt having the following formula (I): wherein: M is selected from metals as defined in the preceding claim; and R is a linear or branched (C1-C25) alkyl radical which may optionally contain 1 to 3 unsaturations, and more particularly a linear or branched (C6-C20) alkyl radical which may optionally contain 1 to 2 unsaturations; In particular, it takes the form of octoate, linoleate, octanoate, oleate, stearate, laurate or naphthenate. 7. Nail polish according to any one of the preceding claims, characterized in that it comprises at least one manganese salt. 8. Nail polish according to any one of the preceding claims, characterized in that the metal salt comprises at least two different metal salts selected from the salts as defined in claims 5 or 6. 9. Nail polish according to any one of the preceding claims, characterized in that the metal salt comprises at least one manganese salt and at least one zirconium salt. 10. Nail polish according to any one of the preceding claims, characterized in that the metal salt comprises at least one manganese salt, at least one zirconium salt and at least one calcium salt. 11. Nail polish according to any one of the preceding claims, characterized in that the (s) salt (s) metal (s) is (are) present (s) in a content ranging from 0.001 to 2% by weight , in particular from 0.01 to 1% by weight and in particular from 0.1 to 0.5% by weight of metal relative to the solids content. 12. Nail polish according to any one of the preceding claims, characterized in that the film-forming polymer is chosen from polysaccharides and polysaccharide derivatives, preferably ethers and esters of polysaccharides, in particular C2-C4, and more preferably cellulose acetobutyrates, cellulose acetate propianates, cellulose acetate, ethylcelluloses, ethylguars and mixtures thereof. 13. Nail polish according to the preceding claim, characterized in that the film-forming polymer is selected from ethylguar and ethylcellulose. 14. Nail polish according to any one of the preceding claims, characterized in that the total content of film-forming polymer is between 1 and 60% by weight, especially between 2 and 30% by weight, and more particularly between 5 and 15% by weight. % by weight, based on the total weight of the nail polish. 30 15. Nail polish according to any one of the preceding claims, characterized in that it comprises less than 5% by weight of nitrocellulose dry matter, relative to the total weight of the nail polish, preferably less than 3% by weight. preferably less than 1.5% by weight, preferably less than 1% by weight, or even completely free of nitrocellulose. 16. A cosmetic process for makeup and / or non-therapeutic care of the nails comprising applying to the nails at least one layer of nail polish 5 according to any one of the preceding claims.