FR2992178A1 - Composition, useful for treating keratin fibers such as hair or as capillary product for treating keratin fibers, preferably maintaining or shaping the hair, comprises hydrophobic silica aerogel particles, wax, and hydrocarbon oil - Google Patents

Abstract

Composition comprises hydrophobic silica aerogel particles, 10 wt.% of wax, and hydrocarbon oil.

Description

The present invention relates to a cosmetic composition comprising hydrophobic silica airgel particles, at least one wax, at least one hydrocarbon-based oil, and also to a cosmetic composition comprising at least one hydrocarbon-based airgel, at least one wax, at least one hydrocarbon-based oil, and at least one hydrocarbon-based airgel. use of such a composition for the hair treatment, in particular for the treatment of keratinous fibers and in particular for maintaining / shaping the hair. Hair styling products are mainly in the form of more or less viscous pastes that are applied to the hair with the hands. However, styling waxes are often sticky and greasy. In addition, the hairstyle obtained is difficult to repositionable. There is therefore a real need to have a cosmetic composition that has good styling and cosmetic properties, and that overcomes the disadvantages mentioned above. The Applicant has discovered that by combining hydrophobic silica airgel particles, a wax and a hydrocarbon oil it is possible to obtain styling waxes with improved use qualities and improved styling performance.

The subject of the present invention is therefore a cosmetic composition comprising hydrophobic silica airgel particles, at least one wax and at least one hydrocarbon-based oil, the composition comprising at least 10% by weight of wax (s) relative to the total weight of the composition. The cosmetic composition is preferably a styling and / or conditioning composition for keratinous fibers, in particular for styling keratinous fibers, in particular human keratinous fibers such as the hair. The invention also relates to a process for the cosmetic treatment of keratin fibers, in particular for maintaining and / or shaping keratinous fibers, using the cosmetic composition as defined above.

The subject of the invention is also the use of a composition as defined above for the hair treatment, in particular for the treatment of keratin fibers and in particular for maintaining and / or shaping the hair. The resulting composition is easy to distribute in the hands and then on the hair. In addition, the hairstyle is quick to get in shape. The hair is not very sticky and we get a hairstyle with a natural look. The holding of the hairstyle is improved, and the re-dressing is facilitated.

Other objects, features, aspects and advantages of the invention will emerge even more clearly on reading the description and examples which follow. In what follows the expression "at least one" is equivalent to the expression "one or more".

The composition according to the invention comprises particles of hydrophobic silica airgel. Aerogels are ultra-light porous materials, the first of which were made by Kristler in 1932. They are generally synthesized by a sol-gel process in a liquid medium and then dried by extraction of a supercritical fluid. The most commonly used supercritical fluid is supercritical CO2. This type of drying avoids the contraction of the pores and the material. Other types of drying also make it possible to obtain porous materials from gel, namely (i) drying by freeze drying, consisting of solidifying at low temperature the gel and then subliming the solvent and (ii) drying by evaporation . The materials thus obtained are called cryogels and xerogels respectively. The sol-gel process and the various dryings are described in detail in Brinker CJ, and Scherer G.VV., Sol-Gel Science: New York: Academic Press, 1990. By "hydrophobic silica" is meant any silica whose surface is treated with silylating agents, for example with halogenated silanes such as alkylchlorosilanes, siloxanes, in particular dimethylsiloxanes such as hexamethyldisiloxane, or silazanes, so as to functionalize the OH groups by Si silyl groups. Rn, for example trimethylsilyl groups.

Preferably, the hydrophobic airgel particles that can be used in the present invention advantageously have a specific surface per unit mass (SM) ranging from 500 to 1500 m 2 / g, preferably from 600 to 1200 m 2 / g and better still from 600 to at 800 m 2 / g and / or have an oil absorption capacity measured at VVET POINT ranging from 5 to 18 ml / g of particles, preferably from 6 to 15 ml / g and better still from 8 to 12 ml / g. . The absorption capacity measured at VVet Point, and denoted VVp, corresponds to the amount of oil that must be added to 100 g of particles to obtain a homogeneous paste. It is measured according to the so-called VVet Point method or method for determining the setting of powder oil according to the principle described in standard NF T 30-022. It corresponds to the quantity of oil adsorbed on the available surface of the powder and / or absorbed by the powder by measuring the VVet Point, described below: A quantity m = 2 g of powder is placed on a glass plate and then the oil (isononyl isononanoate) is added dropwise. After addition of 4 to 5 drops of oil in the powder, mixing is carried out with a spatula and oil is added until the formation of oil and powder conglomerates. From this moment, the oil is added one drop at a time and then triturated with the spatula. The addition of oil is stopped when a firm and smooth paste is obtained. This paste should be spread on the glass plate without cracks or lumps. The volume Vs (expressed in ml) of oil used is then noted. The oil intake corresponds to the ratio Vs / m.

The hydrophobic silica airgel particles used according to the present invention are preferably silylated silica airgel particles (INCI name silica silylate). The preparation of hydrophobic silica airgel particles surface-modified by silylation is further described in US 7,470,725.

Hydrophobic silica aerogels particles surface-modified with trimethylsilyl groups will be used in particular. The hydrophobic airgel particles which may be used in the present invention advantageously have a size, expressed as the average diameter (D [0.5]), of less than 1500 μm and preferably of from 1 to 30 μm, preferably of from 5 to 20 μm. at 25 μm, more preferably 5 to 20 μm and even more preferably 5 to 15 μm. The specific surface area per unit mass can be determined by the nitrogen absorption method called the BET method (BRUNAUER - EMMET - TELLER) described in "The Journal of the American Chemical Society", vol. 60, page 309, February 1938 and corresponding to the international standard ISO 5794/1 (Appendix D). The BET surface area corresponds to the total specific surface area of the particles under consideration. The sizes of the airgel particles according to the invention can be measured by static light scattering using a MasterSizer 2000 commercial particle size analyzer from Malvern. The data is processed on the basis of Mie scattering theory. This theory, which is accurate for isotropic particles, makes it possible to determine, in the case of non-spherical particles, an "effective" diameter of particles. This theory is described in particular in Van de Hulst, HC, "Light Scattering by Small Particles," Chapters 9 and 10, V Viley, New York, 1957. According to an advantageous embodiment, the hydrophobic airgel particles used in the present invention have a surface area per unit mass (SM) ranging from 600 to 800 m 2 / g and a size expressed in volume mean diameter (D [0.5]) ranging from 5 to 20 μm, better still 5 to 15 pm.

According to a preferred embodiment, the VM-2270, whose particles have an average size ranging from 5 to 15 microns and a specific surface per unit mass ranging from 600 to 800 m 2 / g, will be used more particularly. The hydrophobic airgel particles used in the present invention may advantageously have a packed density p ranging from 0.04 g / cm 3 to 0.10 g / cm 3, preferably from 0.05 g / cm 3 to 0.08 g / cm 3 . In the context of the present invention, this density can be assessed according to the following protocol, called the packed density protocol: 40 g of powder are poured into a graduated cylinder and the test piece is then placed on a STAV 2003 machine from STAMPF. Volumeter. The test piece is then subjected to a series of 2500 settlements (this operation is repeated until the difference in volume between two consecutive tests is less than 2%); then the final volume Vf of packed powder is measured directly on the specimen. The packed density is determined by the mass ratio (m) Nf, in this case 40 / Vf (Vf being expressed in cm3 and m in g). According to one embodiment, the hydrophobic airgel particles used in the present invention have a specific surface area per volume unit SV ranging from 5 to 60 m 2 / cm 3, preferably from 10 to 50 m 2 / cm 3 and better still from 15 to 40 m 2 / cm 3. m2 / cm3. The specific surface area per unit volume is given by the relation: SV = SM * p where p is the packed density expressed in g / cm 3 and SM is the specific surface area per unit mass expressed in m2 / g, as defined more high. According to a preferred embodiment, the hydrophobic airgel particles according to the invention have a specific surface per unit mass (SM) ranging from 500 to 1500 m 2 / g, preferably from 600 to 1200 m 2 / g and better still 600 to 800 m2 / g, and a size expressed in average diameter (D [0.5]) ranging from 1 to 30 pm and / or an oil absorption capacity measured at VVET POINT ranging from 5 to 18 ml / g of particles, preferably from 6 to 15 ml / g and better still from 8 to 12 ml / g. Examples of hydrophobic silica aerogels that can be used in the invention include, for example, the aerogel marketed under the name VM-2260 (INCI name Silica silylate), by the company Dow Corning, whose particles have an average size. about 1000 microns and a specific surface area per unit mass ranging from 600 to 800 m2 / g. There may also be mentioned aerogels marketed by Cabot under the references AEROGEL TLD 201, AEROGEL OGD 201 and AEROGEL TLD 203, ENOVA AEROGEL MT 1100 and ENOVA AEROGEL MT 1200.

The airgel marketed under the name VM-2270 (INCI name Silica silylate), by Dow Corning, whose particles have an average size ranging from 5 to 15 microns and a specific surface per unit mass ranging from 600 to 800 m2 / g.

The hydrophobic silica airgel particles may be used in a content ranging from 0.05 to 10% by weight, more preferably from 0.1 to 5% by weight, even more preferably 0.2 to 3% by weight. relative to the total weight of the composition containing them.

The composition according to the invention also comprises at least one wax. The waxes considered in the context of the present invention are generally lipophilic, solid, deformable or non-deformable compounds, at room temperature (25 ° C.), with a reversible solid / liquid state change, having a point of melting greater than or equal to 30 ° C up to 200 ° C and in particular up to 120 ° C. By carrying one or more waxes, according to the invention, in the liquid state (melting), it is possible to make them or to be miscible with one or more oils and to form a mixture of wax (es) and oil. (S), macroscopically homogeneous, but by bringing the temperature of said mixture to room temperature, recrystallization of the wax (es) in the oil (s) of the mixture is obtained. For the purposes of the invention, the melting temperature corresponds to the temperature of the most endothermic peak observed in thermal analysis (DSC) as described in ISO 11357-3; 1999. The melting point of the wax can be measured using a differential scanning calorimeter (DSC), for example the calorimeter sold under the name "MDSC 2920" by the company TA Instruments. The measurement protocol is as follows: A sample of 5 mg of wax, placed in a crucible, is subjected to a first temperature rise ranging from -20 ° C to 100 ° C, at the heating rate of 10 ° C / minute, then is cooled from 100 ° C to - 20 ° C at a cooling rate of 10 ° C / minute and finally is subjected to a second temperature rise from - 20 ° C to 100 ° C at a heating rate 5 ° C / minute. During the second temperature rise, the variation of the power difference absorbed by the empty crucible and the crucible containing the wax sample as a function of temperature is measured. The melting point of the compound is the value of the temperature corresponding to the peak apex of the curve representing the variation of the difference in power absorbed as a function of the temperature.

The waxes that may be used in a composition according to the invention are chosen from waxes, preferably solid at room temperature, of animal, vegetable, mineral or synthetic origin, and mixtures thereof. They may be hydrocarbon, esterified, fluorinated and / or silicone.

The wax or waxes that may be used in the composition according to the invention may be chosen, in particular, from waxes of mineral origin such as paraffin wax, ozokerite, ceresin or microcrystalline waxes, for example the microcrystalline waxes having a melting point greater than 85 ° C., such as HI-MICO products 1070, 1080, 1090 and 3080 marketed by the company Nippon Seiro, waxes of vegetable origin such as carnauba wax, candelilla wax such as that sold under the reference SP 75 G by the company Strahl & Pitsch, alfalfa wax, olive wax, rice wax such as that marketed under the reference NC 1720 by the company CERA RICA NODA, the sunflower seed wax marketed by KOSTER KEUNEN under the reference sunflower wax, hydrogenated jojoba wax or absolute waxes of flowers such as essential wax of black currant flower, cir es of animal origin such as beeswax, or modified beeswax (cerabellina); other waxes or waxy raw materials that can be used according to the invention are especially marine waxes, polyethylene waxes or polyolefin waxes in general, such as α-olefin oligomers such as the PERFORMA V® 825, 103 and 260 polymers marketed by NEW PHASE TECHNOLOGIES, ethylene-propylene copolymers such as PERFORMALENE® EP 700, FischerTropsch waxes. Mention may also be made of silicone waxes such as alkyl or alkoxy dimethicone having from 16 to 45 carbon atoms, and fluorinated waxes. According to a particular embodiment, the wax used in a composition according to the invention has a melting point greater than 35 ° C., better than 40 ° C. or even 45 ° C., or even 55 ° C. Preferably, the wax or waxes are chosen from vegetable waxes and mineral waxes. Even more preferentially, the wax or waxes are chosen from mineral waxes. According to a particular embodiment of the invention, the composition comprises a microcrystalline wax and / or ozokerite. The composition comprises at least 10% by weight of wax relative to the total weight of the composition. The wax content preferably ranges from 10 to 40%, preferably from 10 to 30, more preferably from 10 to 20% by weight relative to the total weight of the composition.

The composition according to the invention also comprises at least one hydrocarbon oil. By hydrocarbon oil is meant a hydrocarbon composed solely of carbon and hydrogen atoms, liquid at ordinary temperature (25 ° C.) and at atmospheric pressure (760 mmHg, ie 1.013 × 10 5 Pa). More particularly, the hydrocarbon oil according to the invention is chosen from: linear or branched, optionally cyclic, lower alkanes. By way of example, mention may be made of hexane, undecane, dodecane and tridecane, isoparaffins such as isohexadecane, isododecane and isodecane. Mention may more particularly be made of the mixture of n-undecane (C11) and n-tridecane (013), linear or branched hydrocarbons of mineral, animal or synthetic origin, containing more than 16 carbon atoms, such as paraffin oils, petroleum jelly, polydecenes, hydrogenated polyisobutenes such as Parleam®, squalane, and mixtures thereof. Preferably, the hydrocarbon oil according to the invention is chosen from paraffin oils, liquid petrolatum, linear lower alkanes such as hexane, undecane, dodecane, tridecane and their derivatives. mixtures. Even more preferably, the hydrocarbon oil according to the invention is vaseline oil. The hydrocarbon oil content (s) preferably varies from 0.1 to 20%, preferably from 1 to 15%, more preferably from 1 to 5% by weight relative to the total weight of the composition. The composition according to the invention may also comprise at least one fatty alcohol. The fatty alcohol can be liquid or non-liquid. By liquid fatty alcohol is meant a non-glycerolated and non-oxyalkylenated fatty alcohol which is liquid at ordinary temperature (25 ° C.) and at atmospheric pressure (760 mmHg, ie 1.013 × 10 5 Pa). Preferably, the liquid fatty alcohols of the invention contain from 8 to 30 carbon atoms. The liquid fatty alcohols of the invention can be saturated or unsaturated.

Saturated liquid fatty alcohols are preferably branched. They may optionally comprise in their structure at least one aromatic cycle or not. Preferably, they are acyclic. More particularly, the liquid saturated fatty alcohols of the invention are chosen from octyldodecanol, isostearyl alcohol and 2-hexyldecanol. Octyldodecanol is particularly preferred. The unsaturated liquid fatty alcohols have in their structure at least one double or triple bond, and preferably one or more double bonds. When more than one double bond is present, it is preferably 2 or 3 and may or may not be conjugated. These unsaturated fatty alcohols can be linear or branched. They may optionally comprise in their structure at least one aromatic cycle or not. Preferably, they are acyclic. More particularly, the liquid unsaturated fatty alcohols of the invention are chosen from oleic (or oleyl) alcohol, linoleic (or linoleyl) alcohol, linolenic (or linolenyl) alcohol, and undecylenic alcohol. Oleyl alcohol is particularly preferred. The non-liquid fatty alcohols that are suitable for carrying out the invention are more particularly chosen from saturated or unsaturated alcohols, linear or branched, containing from 8 to 30 carbon atoms. There may be mentioned, for example, cetyl alcohol, stearyl alcohol and mixtures thereof (cetylstearyl alcohol). Preferably, the fatty alcohol is non-liquid and preferably solid. Preferably, the fatty alcohol is chosen from cetyl alcohol, stearyl alcohol and mixtures thereof.

When it comprises, the fatty alcohol or alcohols are present in the composition in a content ranging from 0.1 to 20%, preferably from 0.5 to 10%, better still from 1 to 5%, by weight relative to total weight of the composition. The composition according to the invention may also comprise at least one fatty acid.

The fatty acid may be liquid or non-liquid. As unsaturated fatty acid, mention may be made of oleic acid. Preferably, the fatty acid is non-liquid and preferably solid. Mention may be made, for example, of fatty acid, stearic acid, palmitic acid, myristic acid, behenic acid and mixtures thereof. The fatty acid or acids may be present in the composition in a content ranging from 1 to 20%, preferably from 0.5 to 10%, more preferably from 1 to 5%, by weight relative to the total weight of the composition. The cosmetic composition according to the invention may optionally comprise one or more surfactants that may be chosen from anionic, cationic, nonionic, amphoteric or zwitterionic surfactants and mixtures thereof. Preferably, the surfactant or surfactants are chosen from nonionic surfactants. The nonionic surfactants that can be used in the compositions of the present invention are well-known compounds per se (see in particular in this connection "Handbook of Surfactants" by MR PORTER, Blackie & Son editions (Glasgow and London), 1991, pp. 116- 178). They are chosen in particular from polyethoxylated, polypropoxylated or polyglycerolated fatty alcohols, polyethoxylated, polypropoxylated or polyglycerolated alpha-diols, polyethoxylated, polypropoxylated or polyglycerolated alkyl (C 1 -C 20) phenols, the fatty chain comprising, for example, from 8 to 18 carbon atoms. carbon, the number of ethylene oxide or propylene oxide groups ranging in particular from 1 to 150 and the number of glycerol groups that can range in particular from 1 to 30. Mention may also be made of ethylene oxide condensates and of propylene oxide on fatty alcohols; the polyethoxylated fatty amides preferably having from 1 to 100 ethylene oxide units, the polyglycerolated fatty amides comprising on average from 1 to 5 glycerol groups and in particular from 1.5 to 4, the esters of fatty acids and of ethoxylated sorbitan having 1 to 50 ethylene oxide units, sucrose fatty acid esters, polyethylene glycol fatty acid esters, alkylpolyglycosides, polyethoxylated vegetable oils preferably having from 1 to 100 ethylene oxide units; ethylene oxide, N- (C₁-C alkyl alkyl) glucamine derivatives, amine oxides such as (C₁-C₁ alkyl alkyl) amine oxides or N- (C₁-C₁ ac-acyl) -aminopropylmorpholine oxides. The alkylpolyglucosides may be chosen, for example, from decylglucoside (Alkyl-C9 / Cl-polyglucoside (1,4)) such as the product sold under the name Mydol 10® by the company Kao Chemicals or the product marketed under the name Plantacare 2000 UP®. by the company Henkel and the product marketed under the name ORAMIX NS 10® by the company SEPPIC; caprylyl / capryl glucoside, such as the product marketed under the name Plantacare KE 3711® by the company Cognis or ORAMIX CG ilo® by the company SEPPIC; laurylglucoside, such as the product marketed under the name Plantacare 1200 UP® by Henkel or Plantaren 1200 N® by Henkel; cocoglucoside, such as the product marketed under the name Plantacare 818 UP® by Henkel; caprylylglucoside, such as the product marketed under the name Plantacare 810 UP® by Cognis; and their mixtures. When it comprises, the surfactant or surfactants are present in a content ranging from 0.01 to 20% by weight, preferably in a content ranging from 0.1 to 15% by weight, relative to the total weight of the composition. . The composition according to the invention may also comprise one or more thickening agents which may be chosen from natural or synthetic, associative or non-associative polymeric thickeners and non-polymeric thickeners.

Polymeric thickeners include, for example, cellulosic thickeners, for example hydroxyethylcellulose, hydroxypropylcellulose and carboxymethylcellulose, guar gum and its derivatives, for example hydroxypropyl guar, marketed by Rhodia under the reference Jaguar. HP 105, gums of microbial origin, such as xanthan gum and scleroglucan gum, carrageenan, for example carrageenan powder marketed by Cargill under the reference Satiagum UTC 30, the synthetic polymeric thickeners derived from radical polymerization reactions or polycondensation reactions such as crosslinked homopolymers of acrylic acid or acrylamidopropanesulfonic acid, for example Carbomer, nonionic, anionic or amphoteric associative polymers, such as the polymers marketed under the names PEMULEN TR1 or TR2 by the company GOODRICH, SALCARE SC90 by the company ALLIED COLLOIDS, ACULYN 22, 28, 33, 44 or 46 by the company ROHM & HAAS and ELFACOS T210 and T212 by the company AKZO, or sodium polyacrylate such as the product marketed by the SENSIENT company under the commercial reference Covacryl MV 60. When it comprises, the thickener (s) preferably polymeric thickeners are present in a content ranging from 0.1 to 10% by weight, preferably in a content ranging from 0.2 at 5% by weight, relative to the total weight of the composition. Preferably, the composition comprises water, preferably at a content greater than or equal to 5% by weight relative to the total weight of the composition. The water content preferably ranges from 5 to 98%, preferably from 10 to 95%, more preferably from 20 to 80%, and more preferably from 30 to 70% by weight relative to the total weight of the composition. The composition may also comprise one or more water-soluble liquid organic solvents preferably chosen from monoalcohols such as ethanol or isopropanol; polyols such as propylene glycol, butylene glycol or glycerol; polyol ethers; and their mixtures. The composition according to the invention may comprise a propellant. For example, mention may be made of liquefied gases such as dimethyl ether, 1,1-difluoroethane, or C3-5 alkanes, such as propane, isopropane, n-butane, isobutane, pentane, or compressed gases. like air, nitrogen, carbon dioxide, and their mixtures. Preferentially, mention may be made of C 3 -C 5 alkanes and in particular propane, n-butane and isobutane, and mixtures thereof.

When it comprises, the composition comprises propellant (s) in an amount ranging from 1 to 60% by weight, more preferably from 2 to 50% by weight, and even more preferably from 4 to 40% by weight. relative to the total weight of the composition. The composition for maintaining and / or shaping the hair according to the invention may also contain one or more additives different from the compounds of the invention chosen from fixing polymers, non-silicone conditioning agents, silicones and vitamins. and pro-vitamins including panthenol, sunscreens, pearlescent and opacifying agents, dyes, sequestering agents, plasticizers, solubilizing agents, acidifying agents, basifying agents, neutralizing agents, antioxidants anti-foam agents, moisturizing agents, emollients, hydroxy acids, penetrating agents, perfumes, preservatives and solid fillers and solids other than aerogels such as, for example, inorganic and organic pigments, colored or not colored.

These additives may be present in the composition according to the invention in an amount ranging from 0 to 20% by weight relative to the total weight of the composition. Of course, those skilled in the art will take care to choose any additional compounds, and / or their quantity, in such a way that the advantageous properties of the compositions used according to the invention are not, or not substantially, impaired by the addition envisaged. . The composition according to the invention may be present inter alia in the form of more or less thickened liquids, gels, serums, creams, pastes, sprays or foams. In particular the composition of the invention can be applied from an aerosol device. Preferably, the composition according to the invention is in the form of gels, creams or pastes.

The cosmetic composition according to the invention can be advantageously used for the cosmetic treatment of the hair. In particular, the composition may be used for styling the hair, for example for shaping and / or maintaining the hairstyle.

The present invention also relates to a method for the cosmetic treatment of hair, for example a method of shaping and / or maintaining the hairstyle, which consists in applying to the hair an effective quantity of a composition according to the invention such that described above, then to perform a possible rinsing after a possible exposure time.

Preferably, the composition according to the invention is not rinsed. The process of the invention can be carried out at room temperature (25 ° C) or under heat at a temperature ranging from 40 to 230 ° C using any heating device: helmet, hair dryer, iron.

The invention is illustrated in greater detail in the following example which is presented by way of illustration and not limitation of the invention. EXAMPLE A styling paste was prepared with the ingredients indicated in percent by weight as product in the state in the table below: Chemical name% Perfume 0.6 1,3-butylene glycol 3 Vaseline oil (1 ) 2 Hydrocarbon mineral wax (C20 / C60) (2) 11 Sorbitol in 70% aqueous solution 3 Trimethylated silica (3) 1 Oxyethylenated stearyl alcohol (2E) (4) 4 Glycerol caprylate 0.5 Triethanolamine (99 %) 1.2 Myristyl / cetyl / stearyl myristate / palmitate / stearate mixture (5) Ethylene diamine tetraacetic acid, disodium salt, 0.1 2H20 1,2-1,2-dian 0.52-phenoxy ethanol 0.9 Acids vegetable fats (53% stearic acid - palmitic acid - myristic acid) (6) Poly dimethylsiloxane (viscosity 5 Cst) 7.5 Microcrystalline wax (mp 74-79 ° C) (7) 7 Carboxyvinyl polymer (8) 0.2 Oleoketyl alcohol oxyethylenated (30 OE) (9) 6 Water QSP 100 CI) BLANDOL marketed by the company SONNEBORN (2) OZOKER ITE WAX SP 1020 P marketed by STRAHL & PITSCH (3) VM-2270 AEROGEL FINE PARTICLES marketed by Dow Corning (4) BRIJ S2-S0- (SG) marketed by CRODA (5) CRODAMOL MS-PA - (MH) marketed by the company CRODA (6) PALMERA B1802CG sold by the company KLK OLEO (7) WHITE MICROCRYSTALLINE WAX SP-18 marketed by the company STRAHL & PITSCH (8) SYNTHALEN K marketed by the company 3V (9) EUMULGIN 0 30 marketed by the company COGNIS This cream was applied to dry hair. The resulting cream is easy to take and spread in the hands. It can be easily transferred from the hands to the hair and is easy to spread over the hair. The cream is not sticky but enough to shape the hairstyle. In addition, the hairstyle is quick to get in shape. We obtain a hairstyle with a natural rendering. The hair does not form packets and we obtain a matt effect. We obtain a good hold of the hairstyle, durable, and which is also easy to recoiffer.20

Claims (15)

REVENDICATIONS1. - Cosmetic composition comprising hydrophobic silica airgel particles, at least one wax, at least one hydrocarbon oil, the composition comprising at least 10% by weight of wax (s) relative to the total weight of the composition. 2. - Composition according to the preceding claim, wherein the hydrophobic airgel particles have a specific surface per unit mass (SM) ranging from 500 to 1500 m 2 / g, preferably 600 to 1200 m 2 / g and better still 600 at 800 m2 / g, and a size expressed in mean diameter (D [0.5]) ranging from 1 to 30 pm and / or an oil absorption capacity measured at VVET POINT ranging from 5 to 18 ml / g particles, preferably 6 to 15 ml / g and more preferably 8 to 12 ml / g. 3. Composition according to any one of the preceding claims, characterized in that the hydrophobic silica airgel particles have a mean diameter size ranging from 5 to 25 μm, better still from 5 to 20 μm and even more preferably from 5 to 25 μm. at 15 pm. 4. - Composition according to any one of the preceding claims, wherein the hydrophobic silica airgel particles are hydrophobic silica particles surface-modified with trimethylsilyl groups. 5. - Composition according to any one of the preceding claims, characterized in that the hydrophobic silica airgel particles have a packed density p ranging from 0.04 g / cm3 to 0.10 g / cm3, preferably 0 0.5 g / cm3 to 0.08 g / cm3. 6. - Composition according to any one of the preceding claims, characterized in that the hydrophobic silica airgel particles have a specific surface area per volume unit SV ranging from 5 to 60 m 2 / cm 3, preferably from 10 to 50 m 2 / cm3 and better from 15 to 40 m2 / cm3. 7. Composition according to any one of the preceding claims, in which the hydrophobic silica airgel particles are present in the composition in concentrations ranging from 0.05 to 10% by weight, more preferably from 0.1 to 5%. % by weight, still more preferably from 0.2 to 3% by weight relative to the total weight of the composition. 8. - Composition according to any one of the preceding claims wherein the wax or waxes are chosen from vegetable waxes and mineral waxes, preferably from mineral waxes. 9. - Composition according to any one of the preceding claims wherein the wax or waxes are chosen from microcrystalline waxes, ozokerite. 10. - Composition according to any one of the preceding claims, wherein the wax or waxes are present in the composition in concentrations ranging from 10 to 40 (Yo, more preferably from 10 to 30 (Yo, better from 10 to 20% by weight relative to the total weight of the composition. 11. - Composition according to any one of the preceding claims, wherein the one or more hydrocarbon oils are chosen from paraffin oils, petroleum jelly, linear C6-C16 lower alkanes such as hexane, undecane, dodecane, tridecane, and mixtures thereof, and preferably petrolatum oil. 12. - Composition according to any one of the preceding claims, wherein the hydrocarbon or oils are present in the composition in concentrations ranging from 0.1 to 20 (Yo, more preferably from 1 to 15 (Yo, better than 1). at 5% by weight relative to the total weight of the composition. 13. Composition according to any one of the preceding claims, which comprises water, preferably in a content ranging from 5 to 98%, preferably from 10 to 95%, better still from 20 to 80, and more preferably from 30 to 70% by weight relative to the total weight of the composition. 14. - Process for the cosmetic treatment of keratinous fibers, in particular human keratinous fibers such as the hair, characterized in that it consists in applying to said fibers an effective amount of a composition as defined according to any one of Claims 1 to 13. 15. - Use of a composition according to any one of claims 1 to 13 for the hair treatment, in particular for the treatment of keratin fibers and in particular for maintaining / shaping the hair.