Classifications

• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K8/00—Cosmetics or similar toiletry preparations
  • A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
  • A61K8/30—Cosmetics or similar toiletry preparations characterised by the composition containing organic compounds
  • A61K8/31—Hydrocarbons
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
  • A61Q1/00—Make-up preparations; Body powders; Preparations for removing make-up
  • A61Q1/02—Preparations containing skin colorants, e.g. pigments
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
  • A61K2800/10—General cosmetic use
• • A—HUMAN NECESSITIES
  • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
  • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
  • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
  • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
  • A61K2800/59—Mixtures
  • A61K2800/592—Mixtures of compounds complementing their respective functions
  • A61K2800/5922—At least two compounds being classified in the same subclass of A61K8/18

Definitions

• This application relates to the technical field of cosmetics.
• the invention relates to cosmetic compositions to be applied to the skin and more particularly to compositions such as a make-up primer or base, a blusher, an eye shadow, a foundation or a make-up remover formulation.
• the invention relates to a composition applicable to the skin comprising a mixture of volatile alkane.
• the term “foundation” means a formulation intended to unify the epidermis and to color it slightly. It must be applied in an even layer but also allow blending, on the face and part of the neck.
• base, primer or even makeup base is understood to mean a cosmetic composition which makes it possible to blur the imperfections of the skin and prevents the makeup from settling in wrinkles or pores throughout the day.
• this formulation helps to perfect the skin before applying foundation, blush, etc.
• blusher or also commonly called “blush” is a cosmetic formulation intended to mimic, reinforce a “rosy-cheeked” appearance.
• eyeshadow or also commonly called “eye-shadow” means cosmetic formulations that can be applied to the eyelid in order to highlight the eyes by creating color contrasts.
• make-up remover formulation is meant a make-up remover oil but also a biphasic make-up remover formulation which makes it possible to cleanse the face of make-up while respecting the skin of its user.
• these makeup-removing formulations can be in the form of a makeup-removing oil consisting of oils and various fatty substances.
• They may also be in the form of a two-phase formulation comprising an aqueous phase and an oily phase.
• alkane is a saturated hydrocarbon consisting solely of carbon and hydrogen atoms bonded together by single covalent bonds, the general formula of which is CnH2n+2.
• a “linear alkane” is an alkane in which each carbon atom is bonded to a maximum of two carbon atoms.
• branched alkane is used to refer to an alkane in which certain carbon atoms are bonded to three or even four carbon atoms.
• Cx alkane is used to denote an alkane consisting of x carbon atoms, said alkane possibly being linear or branched.
• dodecane is a C12 alkane.
• volatile mixture of alkanes refers to a mixture of alkanes having a flash point of less than or equal to 95° C. measured according to the ATSM D93 standard.
• volatile mixture of alkanes means a mixture of alkanes having a flash point of less than or equal to 55° C. measured according to the ATSM D93 standard.
• flash point The flash point measured according to the ASTM D93 standard is called “flash point”.
• the unit of the flash point measured according to the ASTM D93 standard is the degree Celsius (°C). It can also be an average of values, each of the values being obtained by means of a measurement according to standard ASTM D93.
• mass percentage refers to the ratio of the mass of a first compound relative to the total mass of a mixture of compounds or composition, reduced to a percentage. For example, if 10 grams of a compound y are present in a mixture z having a total mass of 100 grams, then the mass percentage of y in z is 10%.
• a compound or an organic composition in which the organic carbon present in the compound or composition is 100% of plant origin is described as "biobased" by radiocarbon analysis according to one of the following standards. ASTM D6866, EN 16640 or EN 16785-1.
• the "naturalness index" of an organic composition is the percentage of organic carbon of plant origin ( 14 C) determined by radiocarbon analysis according to one of the following standards ASTM D6866 or EN 16640 or EN 16785- 1.
• the OECD 301F method makes it possible to assess the biodegradability of a substance by a manometric respirometry test.
• isododecane Since the appearance of isododecane in cosmetics in the 1990s, its use has considerably expanded in all fields of cosmetics, from skin care products to make-up products such as mascara compositions , long-lasting lipstick and hair products such as serums or anti-frizz dry oils. [00024] In some of these products, isododecane can represent up to 60% by mass percentage of the composition of these cosmetic formulas.
• isododecane is a key component because it allows obtaining long-lasting performance, absence of transfer and resistance to water, while maintaining optimal comfort. This market was developed from this essential ingredient, isododecane, derived from petrochemicals
• a first approach consists in developing a process for producing isododecane that does not make use of petroleum raw materials.
• GLOBAL BIOENERGIES disclosed in its application WO2020188033, the production of an isobutene by a biological process using a genetically modified organism such as modified E. Coli bacteria.
• the isobutene gas obtained is then converted into isododecane by an oligomerization reaction in the solvent phase followed by a hydrogenation step according to patent application WO2021228824.
• This excipient is a volatile mixture of alkanes as previously defined.
• this volatile mixture of alkanes is obtained from fatty alcohols by a Guerbet alcohol reaction followed by a dehydration and hydrogenation reaction.
• This synthetic route advantageously makes it possible to obtain a substitute excipient for isododecane, from raw materials of natural origin according to an industrial process that is economically viable in relation to market needs.
• such an excipient is biodegradable according to the OECD 301F method, unlike isododecane (CAS 13475-82-6).
• the excipient according to the present invention has a biodegradability of at least 50% according to the OECD 301F method.
• this cosmetic excipient can make it possible to obtain cosmetic formulations that can be applied to the skin and can have a naturalness index greater than 90%.
• the invention relates to a cosmetic composition applicable to the skin, characterized in that it comprises a volatile mixture of alkanes, said volatile mixture of alkanes comprising: a) From 20 to 100% of a fraction A which comprises at least one branched C ⁇ 10 alkane; b) From 0 to 80% of a fraction B which comprises at least one linear or branched C>10 alkane; and in that said volatile mixture of alkanes has a flash point of less than 55° C. measured according to the ASTM D93 standard and represents a mass percentage greater than or equal to 10% relative to the total mass of the composition.
• the invention also relates to a cosmetic composition applicable to the skin, characterized in that it comprises a volatile mixture of alkanes, said volatile mixture of alkanes comprising: a) From 20 to 100% of a fraction A which comprises at least one branched C ⁇ 10 alkane; b) From 0 to 80% of a fraction B which comprises at least one linear or branched C>10 alkane; and in that said volatile mixture of alkanes has a flash point of less than 55° C. measured according to the ASTM D93 standard and represents a mass percentage greater than or equal to 25% relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that it comprises a mass percentage of less than or equal to 15% of isododecane relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that it comprises a mass percentage of less than or equal to 10% of isododecane relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that it comprises a mass percentage of less than or equal to 5% of isododecane relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that it is free of isododecane.
• the cosmetic composition applicable to the skin according to the invention is characterized in that it is free of linear Cio alkanes.
• the cosmetic composition applicable to the skin according to the invention in particular the foundation and/or base compositions, can be formulated in a fluid or solid form of the powder, loose compact or cast type.
• These compositions can in particular, independently of one another, be in an anhydrous form or in the form of an emulsion.
• emulsions can be in different forms, namely in the form of an oil-in-water or water-in-oil emulsion, but also under certain conditions in the form of multiple W/O/W (water/oil/water) emulsions. or alternatively O/W/O (oil/water/oil) combining at least one aqueous phase and one fatty phase.
• the cosmetic composition applicable to the skin according to the invention is characterized in that it comprises at least one aqueous phase and one fatty phase.
• the aqueous phase essentially consists of water and will be developed below.
• the fatty phase contains different types of ingredients selected essentially on their organoleptic properties:
• - fatty substances such as pasty fatty substances or gelling agents to adjust the smoothness and the pleasantness of use.
• the cosmetic composition applicable to the skin according to the invention comprises a pigmentary part.
• the cosmetic composition applicable to the skin according to the invention is characterized in that it comprises at least one aqueous phase.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the aqueous phase consists of water. In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the aqueous phase comprises water and at least one water-miscible organic solvent.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one water-miscible organic solvent is chosen from the group consisting of: lower alcohols such as ethanol, isopropanol, butanol, isoamyl alcohol, glycols such as ethylene glycol, propylene glycol, 1,3-butylene glycol, ketones and C2 to C4 short chain aldehydes.
• lower alcohols such as ethanol, isopropanol, butanol, isoamyl alcohol
• glycols such as ethylene glycol, propylene glycol, 1,3-butylene glycol, ketones and C2 to C4 short chain aldehydes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the aqueous phase has a mass percentage of 1 to 95% relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the aqueous phase has a mass percentage of 5 to 80% relative to the total mass of the composition. In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the aqueous phase has a mass percentage of 5 to 60% relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the aqueous phase has a mass percentage of 1 to 50% relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the aqueous phase has a mass percentage of 1 to 30% relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the aqueous phase has a mass percentage of 10 to 40% relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the aqueous phase has a mass percentage of 1 to 20% relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that it comprises at least one fatty phase.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the fatty phase comprises volatile solvents, oils, waxes, fatty substances such as pasty fatty substances or gelling agents
• the cosmetic composition applicable to the skin according to the invention is characterized in that the fatty phase also comprises: polymers, absorbent powders, stabilizing additives (antioxidants, preservatives, etc.) , perfume and active ingredients if applicable.
• the volatile solvents used in the cosmetics industry are volatile silicones or volatile isoparaffins such as isododecane.
• the volatile solvent is defined as a “volatile mixture of alkanes”.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the flash point of the said volatile mixture of alkanes is less than or equal to 50°C.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the flash point of the said volatile mixture of alkanes is between 45 and 50°C.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the flash point of the said volatile mixture of alkanes is less than or equal to 45°C.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the flash point of the said volatile mixture of alkanes is between 40 and 45°C.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the flash point of the said volatile mixture of alkanes is less than or equal to 40°C.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the flash point of said volatile mixture of alkanes is between 35 and 40°C.
• the "volatile mixture of alkanes" is a mixture of alkanes free of alkanes whose number of carbon atoms is greater than 16.
• the “volatile mixture of alkanes” is a mixture of alkanes free of alkanes whose number of carbon atoms is greater than 15.
• the "volatile mixture of alkanes" is a mixture of alkanes free of alkanes whose number of carbon atoms is greater than 14.
• the cosmetic composition applicable to the skin according to the invention is characterized in that said volatile mixture of alkanes has a naturalness index greater than or equal to 60% carbon 14 ( 14 C) determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1.
• the cosmetic composition applicable to the skin according to the invention is characterized in that said volatile mixture of alkanes has a naturalness index greater than or equal to 70% carbon 14 ( 14 C) determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1.
• the cosmetic composition applicable to the skin according to the invention is characterized in that said volatile mixture of alkanes has a naturalness index greater than or equal to 75% carbon 14 ( 14 C) determined according to the one of the following standards ASTM D6866, EN 16640 or EN 16785-1.
• the cosmetic composition applicable to the skin according to the invention is characterized in that said volatile mixture of alkanes has a naturalness index greater than or equal to 85% carbon 14 ( 14 C) determined according to the one of the following standards ASTM D6866, EN 16640 or EN 16785-1.
• the cosmetic composition applicable to the skin according to the invention is characterized in that said volatile mixture of alkanes has an index of naturalness greater than or equal to 90% carbon 14 ( 14 C) determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1.
• the volatile mixture of alkanes present in the composition according to the invention has a naturalness index of 100% carbon 14 ( 14 C) determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785 -1.
• the cosmetic composition applicable to the skin according to the invention is characterized in that said volatile mixture of alkanes is obtained from raw materials of plant, bacterial or animal origin.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the said volatile mixture of alkanes is obtained from raw materials of plant origin.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes has a biodegradability of at least 50% according to the OECD 301F method.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes has a biodegradability of at least 60% according to the OECD 301F method.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes has a biodegradability of between 50 and 80% according to the OECD 301F method.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes has a biodegradability of between 50 and 70% according to the OECD 301F method.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes has a biodegradability of between 50 and 60% according to the OECD 301F method.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes has a biodegradability of between 60 and 70% according to the OECD 301F method.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes has a biodegradability of between 70 and 80% according to the OECD 301F method.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of said volatile mixture of alkanes is at least 10% relative to the total mass of the composition. .
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of said volatile mixture of alkanes is at least 25% relative to the total mass of the composition. . [000103] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of said volatile mixture of alkanes is at least 30% relative to the total mass of the composition. .
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of said volatile mixture of alkanes is at least 40% and even more preferentially at least 50% with respect to to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of said volatile mixture of alkanes is between 10 and 80% relative to the total mass of the composition. .
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of said volatile mixture of alkanes is between 25 and 80% relative to the total mass of the composition. .
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of said volatile mixture of alkanes is between 30 and 80% relative to the total mass of the composition. .
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of said volatile mixture of alkanes is between 40 and 80% relative to the total mass of the composition. .
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of said volatile mixture of alkanes is between 30 and 60% relative to the total mass of the composition. .
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of said volatile mixture of alkanes is between 25 and 50% relative to the total mass of the composition. .
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of said volatile mixture of alkanes is between 10 and 30% relative to the total mass of the composition. .
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of said mixture volatile of alkanes is between 40 and 60% relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of said volatile mixture of alkanes is between 60 and 80% relative to the total mass of the composition. .
• Fraction A of said volatile mixture of alkanes is chosen from the group comprising branched Cs, branched C9, branched Cio alkanes, and mixtures thereof.
• Fraction A of said volatile mixture of alkanes comprises at least one branched C ⁇ 10 alkane.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is at least one branched Cs alkane .
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is chosen from the group comprising alkanes in branched C9, branched Cio, and mixtures thereof.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is a branched C9 alkane.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is at least one branched C9 alkane chosen from the group consisting of trimethylhexanes such as for example 2,2,4-trimethylhexane (CAS 16747-26-5), 2,2,5-trimethylhexane (CAS 3522-94-9), 2,2,3 -trimethylhexane (CAS 16747-25-4), 2,4,4-trimethylhexane (CAS 16747-30-1), 2,3,3-trimethylhexane (CAS 16747-28-1), 3,3, 4-trimethylhexane (CAS 16747-31-2), 2,3,5-trimethylhexane (CAS 1069-53-0), 2,3,4 trimethylhexane (CAS 921-47-1).
• the at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is at least one branched C9 alkane chosen from the group consisting of
• trimethylhexanes means all the C alkanes branched by three methyl groups.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is a trimethylhexane.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is 2,2,4- trimethylhexane (CAS 16747-26-5). In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is 2,3,5- trimethylhexane (CAS 1069-53-0).
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is 2,3,4 trimethylhexane (CAS 921-47-1).
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is a branched C10 alkane.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is a branched Cio alkane chosen from the group consisting of: 2-methylnonane (CAS 871-83-0), 4-methylnonane (CAS 17301-94-9), 3-methylnonane (CAS 5911-04-6), 3-ethyloctane (CAS 5881-17-4), 2,2-dimethyloctane (CAS 15869-87-1), 2,3-dimethyloctane (CAS 7146-60-3),
• a branched Cio alkane chosen from the group consisting of: 2-methylnonane (CAS 871-83-0), 4-methylnonane (CAS 17301-94-9), 3-methylnonane (CAS 5911-04-6), 3-ethyloctane (CAS 5881-17-4), 2,2-dimethyloctane (CAS 15869-87-1), 2,3-dimethyloct
• trimethylheptanes means all C alkanes? branched by three methyl groups.
• the cosmetic composition applicable to the skin is characterized in that the at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is a branched Cio alkane chosen from the group consisting of trimethylheptanes such as, for example, 2,2,3-trimethylheptane (CAS 52896-92-1), 2,3,5-trimethylheptane (CAS 20278-85-7), 2,3,6-trimethylheptane (CAS 4032-93-3), 3,3,4-trimethylheptane (CAS 20278-87-9), 2,3,4-trimethylheptane (CAS 52896-95-4), 2,2,4-trimethylheptane (CAS: 14720-74-2,
• a branched Cio alkane chosen from the group consisting of trimethylheptanes such as, for example, 2,2,3-trimethylheptane (CAS 52896-92-1), 2,3,5-trimethylheptane (CAS 20278-85-7), 2,3,6-trimethylheptane (CAS 40
• the invention also relates to a cosmetic composition applicable to the skin comprising a volatile mixture of alkanes as defined above, characterized in that the at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is a trimethylheptane.
• the invention also relates to a cosmetic composition applicable to the skin comprising a volatile mixture of alkanes as defined above, characterized in that the at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is the 2,3,6-trimethylheptane (CAS 4032-93-3).
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is 2,3,5- trimethylheptane (CAS 20278-85-7).
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is 2,2,3- trimethylheptane (CAS 52896-92-1).
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is 3,3,4- trimethylheptane (CAS 20278-87-9).
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is 2,3,4- trimethylheptane (CAS 52896-95-4).
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is 2,2,4- trimethylheptane (CAS: 14720-74-2).
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is 2,2,3- trimethylheptane (CAS 52896-92-1).
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is 3,3,5- trimethylheptane (CAS 7154-80-5). In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is 2,5,5- trimethylheptane (CAS 1189-99-7).
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is 2,4,6- trimethylheptane (CAS 2613-61-8).
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is 3,4,5- trimethylheptane (CAS 20278-89-1).
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is 2,2,6- trimethylheptane (CAS 1190-83-6).
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is 2,4,5- trimethylheptane (CAS 20278-84-6).
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is 2,4,4- trimethylheptane (CAS 4032-92-2).
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is 2,3,3- trimethylheptane (CAS 52896-93-2).
• the invention also relates to a cosmetic composition applicable to the skin comprising a volatile mixture of alkanes as defined above, characterized in that the at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is a trimethylheptane and a trimethylhexane.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction A of the volatile mixture of alkanes is at least 20% relative to the mass total of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction A of the volatile mixture of alkanes is greater than 50% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction A of the volatile mixture of alkanes is between 20% and 100% relative to the total mass of said volatile mixture of alkanes. [000149] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction A of the volatile mixture of alkanes is between 20% and 70% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction A of the volatile mixture of alkanes is between 50% and 100% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction A of the volatile mixture of alkanes is between 51% and 100% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction A of the volatile mixture of alkanes is between 30% and 60% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction A of the volatile mixture of alkanes is between 40% and 70% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction A of the volatile mixture of alkanes is between 70% and 100% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction A of the volatile mixture of alkanes is between 30% and 50% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction A of the volatile mixture of alkanes is between 40% and 60% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction A of the volatile mixture of alkanes is between 50% and 70% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the fraction A of the volatile mixture of alkanes is between 70% and 90% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction A of the volatile mixture of alkanes is between 80% and 100% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is at least 20% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is greater than 50 % relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is between 20 % and 100% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is between 20 % and 70% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is between 50 % and 100% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is between 51 % and 100% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is between 30 % and 60% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is between 40 % and 70% relative to the total mass of said volatile mixture of alkanes. In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is between 70 % and 100% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is between 30 % and 50% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is between 40 % and 60% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is between 50 % and 70% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is between 70 % and 90% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is between 80 % and 100% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of 2,3,6-trimethylheptane (CAS 4032-93-3) of at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is at least 20% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of 2,3,6-trimethylheptane (CAS 4032-93-3) of at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is between 20% and 100% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of 2,3,6-trimethylheptane (CAS 4032-93-3) of at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is between 20% and 70% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage in
• 2,3,6-trimethylheptane (CAS 4032-93-3) of at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is between 50% and 100% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage in
• 2,3,6-trimethylheptane (CAS 4032-93-3) of at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is between 51% and 100% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage in
• 2,3,6-trimethylheptane (CAS 4032-93-3) of at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is between 30% and 60% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage in
• 2,3,6-trimethylheptane (CAS 4032-93-3) of at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is between 40% and 70% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage in
• 2,3,6-trimethylheptane (CAS 4032-93-3) of at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is between 70% and 100% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage in
• 2,3,6-trimethylheptane (CAS 4032-93-3) of at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is between 30% and 50% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage in
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage in
• 2,3,6-trimethylheptane (CAS 4032-93-3) of at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is between 50% and 70% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage in
• 2,3,6-trimethylheptane (CAS 4032-93-3) of at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is between 70% and 90% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage in
• 2,3,6-trimethylheptane (CAS 4032-93-3) of at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is between 80% and 100% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage in
• 2,2,4-trimethylhexane (CAS 16747-26-5) of the at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is at least 5% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage in
• 2,2,4-trimethylhexane (CAS 16747-26-5) of the at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is at least 10% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage in
• 2,2,4-trimethylhexane (CAS 16747-26-5) of at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is between 5% and 20% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage in
• 2,2,4-trimethylhexane (CAS 16747-26-5) of at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is between 5% and 15% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the percentage in
• 2,2,4-trimethylhexane (CAS 16747-26-5) of the at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is between 10% and 20% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of 2,2,4-trimethylhexane (CAS 16747-26-5) of at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is between 10% and 15% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of 2,2,4-trimethylhexane (CAS 16747-26-5) of at least one branched C ⁇ 10 alkane of said volatile mixture of alkanes is between 15% and 20% relative to the total mass of said volatile mixture of alkanes.
• Fraction B of said volatile mixture of alkanes comprises at least one linear or branched C>10 alkane.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is chosen from the group comprising Cn, C12, C13, CM, C15, C16 alkanes and mixtures thereof.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is chosen from the group comprising Cn, C12, C13, CM, C15 linear alkanes, and mixtures thereof.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is chosen from the group consisting of by undecane (CAS 1120-21-4), n-dodecane (CAS 112-40-3), n-tridecane (CAS 629-50-5), n-tetradecane (CAS 629-59-4) , n-pentadecane (CAS 629-62-9) and mixtures thereof.
• undecane CAS 1120-21-4
• n-dodecane CAS 112-40-3
• n-tridecane CAS 629-50-5
• n-tetradecane CAS 629-59-4
• n-pentadecane CAS 629-62-9
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is undecane (CAS 1120 -21-4).
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is n-dodecane ( CAS 112-40-3).
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is n-tridecane ( CAS 629-50-5). In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is the undecane/tridecane mixture marketed under the name CETIOL ULTIMATE by BASF.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is n-tetradecane ( CAS 629-59-4).
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is chosen from the group comprising branched C12, branched C13, branched C, branched C15, branched C16 alkanes, and mixtures thereof.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is a branched Cn alkane .
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is a branched C12 alkane .
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is a branched C12 alkane selected from the group consisting of: 3-methylundecane (CAS 1002-43-3), 4-methylundecane (CAS 2980-69-0), 5-methylundecane (CAS 1632-70-8), 6-methylundecane (CAS 17302-33-9), the group consisting of: 3-methylundecane (CAS 1002-43-3), 4-methylundecane (CAS 2980-69-0), 5-methylundecane (CAS 1632-70-8), 6-methylundecane (CAS 17302-33-9), the group consisting of: 3-methylundecane (CAS 1002-43-3), 4-methylundecane (CAS 2980-69-0), 5-methylundecane (CAS 1632-70-8), 6-methylundecane (CAS 17302-33-9), the group consisting of: 3-methylundecane (CAS 100
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is at least one isododecane.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is 2,2, 4,6,6-pentamethylheptane (CAS 13475-82-6).
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is a branched C13 alkane .
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is a branched C alkane .
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is a branched C15 alkane .
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is at least hemisqualane marketed under the name of NEOSSANCE by AMYRIS.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is at least one C13 -C15 marketed under the name EMOGREEN L15 by SEPPIC.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is a branched C16 alkane .
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one linear or branched C>10 alkane of said volatile mixture of alkanes is at least one isohexadecane.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction B of the volatile mixture of alkanes is between 0 and 80% relative to the mass total of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction B of the volatile mixture of alkanes is between 0 and 50% relative to the mass total of said volatile mixture of alkanes. In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction B of the volatile mixture of alkanes is between 0 and 30% relative to the mass total of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction B of the volatile mixture of alkanes is at least 30% relative to the mass total of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction B of the volatile mixture of alkanes is between 30% and 80% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction B of the volatile mixture of alkanes is between 30% and 60% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction B of the volatile mixture of alkanes is between 50% and 80% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction B of the volatile mixture of alkanes is between 30% and 50% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction B of the volatile mixture of alkanes is between 40% and 60% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction B of the volatile mixture of alkanes is between 50% and 70% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction B of the volatile mixture of alkanes is between 60% and 80% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the fraction B of the volatile mixture of alkanes is between 0% and 10% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction B of the volatile mixture of alkanes is between 10% and 20% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction B of the volatile mixture of alkanes is between 40% and 50% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction B of the volatile mixture of alkanes is between 60% and 70% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of fraction B of the volatile mixture of alkanes is between 70% and 80% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one linear or branched C>10 alkane of said volatile mixture of alkanes is comprised between 0 and 80% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one linear or branched C>10 alkane of said volatile mixture of alkanes is comprised between 0 and 50% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one linear or branched C>10 alkane of said volatile mixture of alkanes is comprised between 0 and 30% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one linear or branched C>10 alkane of said volatile mixture of alkanes is at least 30% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one linear or branched C>10 alkane of said volatile mixture of alkanes is at least 50% relative to the total mass of said volatile mixture of alkanes. In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one linear or branched C>10 alkane of said volatile mixture of alkanes is comprised between 30% and 80% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one linear or branched C>10 alkane of said volatile mixture of alkanes is comprised between 30% and 60% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one linear or branched C>10 alkane of said volatile mixture of alkanes is comprised between 50% and 80% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one linear or branched C>10 alkane of said volatile mixture of alkanes is comprised between 0% and 20% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one linear or branched C>10 alkane of said volatile mixture of alkanes is comprised between 10 and 30% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one linear or branched C>10 alkane of said volatile mixture of alkanes is comprised between 30% and 50% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one linear or branched C>10 alkane of said volatile mixture of alkanes is comprised between 40% and 60% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one linear or branched C>10 alkane of said volatile mixture of alkanes is comprised between 50% and 70% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one linear or branched C>10 alkane of said volatile mixture of alkanes is comprised between 60% and 80% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least a linear or branched C>10 alkane of said volatile mixture of alkanes is between 0% and 10% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one linear or branched C>10 alkane of said volatile mixture of alkanes is comprised between 10% and 20% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one linear or branched C>10 alkane of said volatile mixture of alkanes is comprised between 20% and 30% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one linear or branched C>10 alkane of said volatile mixture of alkanes is comprised between 40% and 50% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one linear or branched C>10 alkane of said volatile mixture of alkanes is comprised between 60% and 70% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least one linear or branched C>10 alkane of said volatile mixture of alkanes is comprised between 70% and 80% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one C> alkane 10 linear or branched said volatile mixture of alkanes is between 0% and 80% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one C> alkane 10 linear or branched said volatile mixture of alkanes is between 0% and 50% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one C> alkane 10 linear or branched said volatile mixture of alkanes is between 0% and 30% relative to the total mass of said volatile mixture of alkanes. In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one C> alkane 10 linear or branched said volatile mixture of alkanes is at least 10% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one C> alkane 10 linear or branched said volatile mixture of alkanes is at least 30% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one C> alkane 10 linear or branched said volatile mixture of alkanes is between 10% and 80% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one C> alkane 10 linear or branched said volatile mixture of alkanes is between 30% and 80% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one C> alkane 10 linear or branched said volatile mixture of alkanes is between 30% and 60% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one C> alkane 10 linear or branched said volatile mixture of alkanes is between 50% and 80% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one C> alkane 10 linear or branched said volatile mixture of alkanes is between 30% and 50% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one C> alkane 10 linear or branched said volatile mixture of alkanes is between 40% and 60% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage in n-dodecane (CAS 112-40-3) of the at least one alkane in C >10 linear or branched of said volatile mixture of alkanes is between 50% and 70% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one C> alkane 10 linear or branched said volatile mixture of alkanes is between 60% and 80% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one C> alkane 10 linear or branched said volatile mixture of alkanes is between 0% and 10% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one C> alkane 10 linear or branched said volatile mixture of alkanes is between 10% and 20% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one C> alkane 10 linear or branched said volatile mixture of alkanes is between 20% and 30% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one C> alkane 10 linear or branched said volatile mixture of alkanes is between 40% and 50% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one C> alkane 10 linear or branched said volatile mixture of alkanes is between 50% and 60% relative to the total mass of said volatile mixture of alkanes. In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one C> alkane 10 linear or branched said volatile mixture of alkanes is between 60% and 70% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of n-dodecane (CAS 112-40-3) of the at least one C> alkane 10 linear or branched said volatile mixture of alkanes is between 70% and 80% relative to the total mass of said volatile mixture of alkanes.
• the invention also relates to a cosmetic composition applicable to the skin comprising a volatile mixture of alkanes as defined above, characterized in that the volatile mixture of alkanes comprises:
• n-dodecane CAS 112-40-3.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of:
• n-dodecane CAS 112-40-3.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes comprises:
• the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of:
• the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes comprises:
• the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of:
• n-dodecane CAS 112-40-3.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes comprises:
• n-dodecane CAS 112-40-3.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of:
• n-dodecane CAS 112-40-3.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes comprises:
• the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of:
• the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of:
• the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of:
• the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of:
• the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of:
• the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of:
• the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of:
• the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of:
• the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of:
• the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes comprises:
• n-dodecane CAS 112-40-3.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of:
• the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes comprises:
• n-dodecane CAS 112-40-3.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of:
• n-dodecane CAS 112-40-3.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes comprises:
• n-dodecane CAS 112-40-3.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of:
• n-dodecane CAS 112-40-3.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes comprises:
• n-dodecane CAS 112-40-3.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of:
• n-dodecane CAS 112-40-3.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of:
• the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of:
• the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of:
• the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of:
• the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of:
• the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of:
• the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of:
• the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of:
• the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of:
• the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes consists of:
• the cosmetic composition applicable to the skin according to the invention as defined above is characterized in that the volatile mixture of alkanes comprises: a) from 70 to 99% by mass of the volatile mixture of alkanes composed of a fraction A and a fraction B as defined above b) from 1 to 30% by mass of a fraction C containing at least one linear C ⁇ 10 alkane.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes comprises at least one linear C ⁇ 10 alkane chosen from the group consisting of n- octane, n-nonane and n-decane.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one linear C ⁇ 10 alkane present in the volatile mixture of alkanes is n-decane.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the at least one linear C ⁇ 10 alkane is at least 1% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of at least a linear C ⁇ 10 alkane is between 1 and 20% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the at least one linear C ⁇ 10 alkane is between 10 and 30% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the at least one linear C ⁇ 10 alkane is between 5 and 15% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the at least one linear C ⁇ 10 alkane is between 10 and 20% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the at least one linear C ⁇ 10 alkane is between 20 and 30% relative to the total mass of said volatile mixture of alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes comprising a fraction A, a fraction B and a fraction C as defined above has a point flash less than 55°C according to the ASTM D93 standard.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes comprising a fraction A, a fraction B and a fraction C as defined above has a point flash between 45 and 54°C.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes comprising a fraction A, a fraction B and a fraction C as defined above has a point flash between 45 and 50°C.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the volatile mixture of alkanes comprising a fraction A, a fraction B and a fraction C as defined above has a point flash between 50 and 54°C.
• the volatile mixture of alkanes comprising a fraction A, a fraction B and a fraction C as defined above has a percentage greater than or equal to 50% in carbon 14 ( 14 C) according to the one of the following methods ASTM D6866, EM 16640 or EN 16785-1.
• the volatile mixture of alkanes comprising a fraction A, a fraction B and a fraction C as defined above has a percentage greater than or equal to 60% in carbon 14 ( 14 C) according to the one of the following methods ASTM D6866, EM 16640 or EN 16785-1.
• the volatile mixture of alkanes comprising a fraction A, a fraction B and a fraction C as defined above has a percentage greater than or equal to 75% in carbon 14 ( 14 C) according to the one of the following methods ASTM D6866, EM 16640 or EN 16785-1.
• the volatile mixture of alkanes comprising a fraction A, a fraction B and a fraction C as defined above has a percentage greater than or equal to 85% in carbon 14 ( 14 C) according to the one of the following methods ASTM D6866, EM 16640 or EN 16785-1.
• the volatile mixture of alkanes comprising a fraction A, a fraction B and a fraction C as defined above has a percentage greater than or equal to 90% in carbon 14 ( 14 C) according to one of the methods following ASTM D6866, EM 16640 or EN 16785-1.
• the cosmetic composition applicable to the skin is characterized in that it comprises at least one non-volatile oil.
• non-volatile oil is meant within the meaning of the present invention, an oil having a flash point greater than 110° C. measured according to the ATSM D93 standard.
• oils can be of vegetable, mineral or synthetic origin.
• non-volatile oils can be hydrocarbon, silicone, fluorinated or fluorosilicone oils.
• hydrocarbon oil means an oil essentially consisting of carbon, hydrogen and optionally oxygen and/or nitrogen atoms.
• hydrocarbon oils mention may be made of linear or branched alkanes of mineral or synthetic origin such as linear or branched alkanes with 17 to 40 carbon atoms, (poly)esters and (poly)ethers, and in particular C2-C24 (preferably C6-C20) acid (poly)esters, C6-C20 fatty acid triglycerides, vegetable oils, di-alkyl carbonates, branched and/or unsaturated fatty acids, branched and/or unsaturated fatty alcohols.
• linear or branched alkanes of mineral or synthetic origin such as linear or branched alkanes with 17 to 40 carbon atoms, (poly)esters and (poly)ethers, and in particular C2-C24 (preferably C6-C20) acid (poly)esters, C6-C20 fatty acid triglycerides, vegetable oils, di-alkyl carbonates, branched and/or unsaturated fatty acids, branched and/or unsaturated
• non-volatile silicone oils they are chosen in particular from the group comprising phenyl silicone oils, non-volatile polydimethylsiloxanes, or derivatives of non-volatile polydimethylsiloxanes and mixtures thereof.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the non-volatile oil is chosen from the group consisting of non-volatile linear or branched alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the non-volatile oil is chosen from the group consisting of non-volatile linear or branched alkanes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the non-volatile linear or branched alkanes are chosen from the group consisting of linear or branched alkanes with 17 to 40 carbon atoms.
• non-volatile oils used in the context of this invention are of plant origin.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the non-volatile oil is a vegetable hydrocarbon-based oil.
• the vegetable hydrocarbon-based oils are chosen in particular from the group comprising wheat germ, sunflower, grapeseed, sesame, coconut, apricot, castor, corn, avocado, soya, shea, olive, sweet almond oil, cottonseed, palm, macadamia, rapeseed, jojoba, hazelnut, poppy, alfalfa, pumpkin, blackcurrant, squash, evening primrose, barley, and mixtures thereof.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the non-volatile oil is at least 5% relative to the total mass of the composition. .
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the non-volatile oil is at least 10% relative to the total mass of the composition. .
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the non-volatile oil is between 5% and 25% relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the non-volatile oil is between 5% and 15% relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the non-volatile oil is between 10% and 25% relative to the total mass of the composition.
• the term "shiny oil” means an oil having intrinsic gloss properties. "Glossy Oils” are frequently used in cosmetics to guarantee a “shiny effect” when applying cosmetic compositions to keratin materials, for example.
• the cosmetic composition applicable to the skin is characterized in that it comprises at least one shiny oil.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the shiny oil is a non-volatile oil.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the shiny oil is chosen from the group comprising:
• polystyrene resin such as: polybutylenes, in particular POLYBUTENE® marketed or manufactured by the company ATAMAN, hydrogenated polyisobutylenes, polydecenes and hydrogenated polydecenes, polyfarnesenes, vinylpyrrolidone copolymers, in particular the vinylpyrrolidone/eicosene copolymer, ANTARON V 220® marketed or manufactured by ISP.
• esters such as linear fatty acid esters having a total number of carbon atoms greater than 30, aromatic esters, fatty alcohol esters or branched fatty acid esters having 20 to 30 carbon atoms.
• - ester copolymers such as: dilinoleyl dimer dilinoleate (LUSPLAN DD-DA5® and LUSPLAN DD-DA7®), di li noleic acid/butanediol copolymer (VISCOPLAST 14436H®), dilinoleic acid/propanediol copolymer and their mixtures.
• the shiny oil used in the context of the present invention is of plant origin.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the shiny oil is at least 2% relative to the total mass of the composition. .
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the shiny oil is at least 5% relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the shiny oil is between 2 and 20% relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the shiny oil is between 5 and 15% relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the shiny oil is between 10 and 20% relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the shiny oil is between 2 and 10% relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the shiny oil is between 5 and 10% relative to the total mass of the composition.
• pasty fatty substance is understood to mean a lipophilic fatty compound with a reversible solid/liquid state change, exhibiting at room temperature (25° C.) a liquid fraction and a solid fraction.
• the melting point of the pasty fatty substance is less than or equal to 25°C.
• the cosmetic composition applicable to the skin is characterized in that it also comprises at least one pasty fatty substance.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the pasty fatty substance is chosen from the group comprising synthetic pasty fatty substances, pasty animal fatty substances, vegetable pastes and mixtures thereof.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the synthetic pasty fatty substance is chosen from the group comprising: polyol ethers, petroleum jelly, vinyl polymers, pentaerythritol esters, polyesters and mixtures thereof.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the pasty animal fatty substance is lanolin.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the pasty fatty substance is a vegetable pasty fatty substance.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the vegetable pasty fatty substance is chosen from the group comprising: vegetable butters (avocado butter, shea butter) , fatty acid triglycerides and their derivatives, and mixtures thereof.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the pasty fatty substance is between 0 and 20% relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the pasty fatty substance is between 0 and 15% relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the pasty fatty substance is between 0 and 10% relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the pasty fatty substance is between 0 and 5% relative to the total mass of the composition.
• gelling agent By gelling agent, one understands within the meaning of the present invention, compounds which constitute excellent agents of texture making it possible to balance the formulations on the point of smoothness and tackiness.
• gloss oils such as VISCOPLAST 14436H®, and the compounds marketed under the names LUSPLAN DD-DA5® and LUSPLAN DD-DA7® can also be used as gelling agents.
• the cosmetic composition applicable to the skin according to the invention is characterized in that it comprises at least one gelling agent.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the gelling agent is chosen from the group comprising: organic gelling agents, mineral gelling agents, polymeric gelling agents, and mixtures thereof.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the gelling agent is of plant origin.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the organic gelling agent is chosen from the group comprising: ethylcellulose and its derivatives, resins derived from rosin, dextrin esters, fatty acid esters, and mixtures thereof.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mineral gelling agent is chosen from the group comprising: hectorite and its derivatives, fumed silica and its derivatives, and their mixtures.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the polymeric gelling agent is chosen from the group comprising: organopolysiloxanes and their derivatives, dimethicone copolymers and their derivatives, polystyrene/polyisoprene copolymers, the polystyrene/polybutadiene copolymers, polystyrene/copoly(ethylene-propylene) copolymers, polystyrene/copoly(ethylene-butylene) copolymers, mixtures of copolymers in isododecane such as ethylene/propylene copolymer or butylene/ethylene copolymer /styrene, polyesters and their derivatives, polyamide resins, and mixtures thereof.
• the polymeric gelling agent is chosen from the group comprising: organopolysiloxanes and their derivatives, dimethicone copolymers and their derivatives, polystyrene/pol
• the cosmetic composition applicable to the skin according to the invention is characterized in that the gelling agent is dextrin palmitate or one of its derivatives.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the gelling agent is a modified hectorite of BENTONE GEL ISD V® type or one of its equivalents.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the gelling agent is a modified hectorite of the VEGELIGHT BENTONE SILK SB® type or one of its equivalents.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the gelling agent is a modified hectorite of the disteardimonium hectorite type associated with triethyl citrate and with a volatile mixture of alkanes defined according to the present invention.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the gelling agent is a mixture of copolymer in isododecane such as the ethylene/propylene copolymer.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the gelling agent is the combination of a dimethicone polymer and a mixture of alkanes marketed under the name VEGELIGHT SILK SI 118 ® by BIOSYNTHIS, or one of its equivalents.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the gelling agent is at least 5% relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the gelling agent is at least 15% relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the gelling agent is between 5% and 30% relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the gelling agent is between 5% and 20% relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the gelling agent is between 15% and 30% relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the gelling agent is between 5% and 15% relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the gelling agent is between 15% and 25% relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the gelling agent is between 20% and 30% relative to the total mass of the composition.
• film-forming polymer is understood to mean a polymer capable of forming a macroscopically continuous film, in particular on the skin in the context of our invention.
• the cosmetic composition applicable to the skin according to the invention is characterized in that it comprises at least one film-forming polymer.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the film-forming polymer is chosen from the group comprising: acrylic polymers, polyurethanes, polyesters, polyamides, polymers silicones.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the film-forming polymer is trimethylsilloxysillicate marketed under the name TMS 803.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the film-forming polymer is at least 1% relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the film-forming polymer is at least 10% relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the film-forming polymer is between 1% and 25% relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the film-forming polymer is between 10% and 25% relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the film-forming polymer is between 1% and 10% relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the film-forming polymer is between 10% and 20% relative to the total mass of the composition.
• Waxes play an important role in the design of compositions applicable to the skin because they influence certain essential criteria such as the texture, the appearance and/or the solidity of the product.
• the term “wax” means a lipophilic compound having a reversible solid/liquid state change.
• the compound is solid at room temperature (at 25°C) and has a melting point greater than or equal to 30°C.
• the waxes used have a melting point greater than or equal to 50°C.
• the cosmetic composition applicable to the skin according to the invention is characterized in that it comprises at least one wax.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the wax is a synthetic wax, a mineral wax, a vegetable wax or an animal wax.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the wax is a mineral wax or a synthetic wax chosen from the group comprising: microcrystalline waxes, paraffins, ozokerite, polyethylene waxes, silicone waxes, fluorinated waxes.
• “Vegetable wax” means a composition comprising at least one partially or completely hydrogenated oil. These vegetable waxes can comprise fatty acid and fatty alcohol esters, and can also comprise fatty acids, free fatty alcohols, long chain linear alkanes and/or unsaponifiables.
• the waxes used are vegetable waxes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the wax is a vegetable or animal wax chosen from the group comprising: lanolin wax, rice bran wax , carnauba wax, candelilla wax, berry wax, beeswax, sunflower wax, mimosa wax, jojoba wax, castor wax, olive wax.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the wax is at least 2% relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the wax is at least 5% relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the wax is between 2 and 20% relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the wax is between 5 and 15% relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the wax is between 2 and 10% relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the wax is between 5 and 10% relative to the total mass of the composition.
• surfactant is meant a compound which modifies the surface tension between two surfaces, phases.
• these compounds are amphiphilic molecules and make it possible to solubilize two immiscible phases of a composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that it comprises at least one surfactant.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one surfactant is chosen from the group comprising nonionic, anionic and amphoteric surfactants.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one surfactant is a nonionic surfactant.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the nonionic surfactant is chosen from the group consisting of: polyoxyalkylene alkyl ethers, glycerine alkyl ethers, glycerin fatty acid esters, polyglycerin fatty acid esters, sorbitan fatty acid esters, derivatives thereof, and mixtures thereof.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one surfactant is an anionic surfactant.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the anionic surfactant is chosen from the group consisting of: alkyl phosphates, alkyl ether phosphates of polyoxyalkylene, sulfonates, alkyl sulfates, polyaspartates, their derivatives and mixtures thereof.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the at least one surfactant is an amphoteric surfactant.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the at least one surfactant is at least 0.1% relative to the mass total composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the at least one surfactant is at least 5% relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the at least one surfactant is between 0.1% and 30% relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the at least one surfactant is between 5% and 15% relative to the total mass. of composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that it also comprises at least one antioxidant.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the antioxidant is chosen from the group comprising: phenolic antioxidants of BHA, BHT, DBPC, gallates, so-called natural antioxidants such as dl-alpha-tocopherol or its derivatives, plant extracts, dibasic lipopeptides such as lysine or arginine, and mixtures thereof.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the antioxidant is at least 0.01% relative to the total mass of the composition. .
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the antioxidant is at least 0.1% relative to the total mass of the composition. .
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the antioxidant is between 0.01% and 2% relative to the total mass of the composition. In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the antioxidant is between 0.01% and 1% relative to the total mass of the composition. [000432] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the antioxidant is between 0.1% and 1% relative to the total mass of the composition. [000433] In one embodiment, the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the antioxidant is between 0.01% and 0.1% relative to the total mass. of composition.
• the pigments used are of synthetic, mineral or vegetable origin. Their dosage is also subtle.
• the cosmetic composition applicable to the skin according to the invention is characterized in that it comprises at least one pigmentary part.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the pigmentary part is chosen from the group comprising: water-soluble dyes, fat-soluble dyes, pigments, nacres, flakes and mixtures thereof.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the pigmentary part comprises a pigment chosen from the group comprising: organic pigments such as fixed pigments or precipitated pigments, mineral pigments such as titanium dioxide or iron oxides, sodium aluminosilicate thiosulfates, chromium oxides, bismuth oxychloride, copper phthalocyanine, metal-free phthalocyanine, chlorinated copper phthalocyanine.
• the level of titanium oxide determines the coverage and the opacity of the film.
• the use of lacquers or precipitated pigments determines the color and the chrominance.
• pigments can be used such as titanium mica, borosilicates and their derivatives, mica, silica.
• Mineral pigments are used to nuance the tints while compounds such as bismuth oxychloride can be used to confer particular effects (metallic, shimmering effects, etc.).
• the cosmetic composition applicable to the skin according to the invention is characterized in that the pigmentary part comprises a dye of plant origin chosen from fruit and/or plant extracts containing dyes.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the pigmentary part is at least 0.01% relative to the total mass of the composition. .
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the pigmentary part is at least 1% relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of the pigmentary part is at least 5% relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of pigmentary part is between 0.01% and 20% relative to the total mass of the composition. .
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of pigmentary part is between 1% and 20% relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of pigmentary part is between 5% and 20% relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of pigmentary part is between 1% and 15% relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of pigmentary part is between 5% and 15% relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of part pigment is between 0.01% and 5% relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the mass percentage of pigmentary part is between 5% and 10% relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the percentage by mass of pigmentary part is between 10% and 15% relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that it has a naturalness index greater than or equal to 80% carbon 14 ( 14 C) determined according to one following standards ASTM D6866, EN 16640 or EN 16785-1.
• the cosmetic composition applicable to the skin according to the invention is characterized in that it has a naturalness index greater than or equal to 85% carbon 14 ( 14 C) determined according to one following standards ASTM D6866, EN 16640 or EN 16785-1.
• the cosmetic composition applicable to the skin according to the invention is characterized in that it has a naturalness index greater than or equal to 90% carbon 14 ( 14 C) determined according to one following standards ASTM D6866, EN 16640 or EN 16785-1.
• the cosmetic composition applicable to the skin according to the invention is characterized in that it has a naturalness index greater than or equal to 95% carbon 14 ( 14 C) determined according to one following standards ASTM D6866, EN 16640 or EN 16785-1.
• the cosmetic composition applicable to the skin according to the invention is characterized in that at least 50% by weight of its ingredients is of natural origin relative to the total weight of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that at least 75% by weight of its ingredients is of natural origin relative to the total weight of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that at least 90% by weight of its ingredients is of natural origin relative to the total weight of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that 50% by mass of its ingredients is of natural origin relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that 75% by mass of its ingredients is of natural origin relative to the total mass of the composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that 90% by weight of its ingredients is of natural origin relative to the total weight of the composition.
• ingredient "of natural origin” means an ingredient that is obtained directly from the earth, soil, water, atmosphere or from plants, via, where appropriate, one or more physical processes, such as for example grinding, refining, distillation, purification or filtration.
• natural origin means an ingredient that has undergone one or more chemical or industrial treatments, generating modifications that do not affect the essential qualities of this ingredient and/or an ingredient mainly comprising natural constituents having or not undergone transformations, as indicated above.
• synthetic or artificial ingredient means an ingredient that does not satisfy the definitions of natural ingredients or ingredients of natural origin given above.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the drying time at 20° C. after application of the composition to the skin is less than or equal to 5 min.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the drying time at 20° C. after application of the composition to the skin is less than or equal to 4 min and 30 s.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the drying time at 20° C. after application of the composition to the skin is less than or equal to 4 min.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the drying time at 20° C. after application of the composition to the skin is equal to 4 min.
• the cosmetic composition applicable to the skin according to the invention is characterized in that it is in a powdery solid form, cast or compacted or in the form of a stick.
• the cosmetic composition applicable to the skin according to the invention is characterized in that it is in a solid pulverulent form such as powders.
• the cosmetic composition applicable to the skin according to the invention is characterized in that it is in the form of a solid composition, for example in a stick.
• the cosmetic composition applicable to the skin according to the invention is characterized in that it is in the form of a pasty or liquid fluid.
• the cosmetic composition applicable to the skin according to the invention is characterized in that it is in the form of a soft paste, an ointment, a solid or liquid ointment. cream type.
• the cosmetic composition applicable to the skin according to the invention is characterized in that it is in the form of an O/W, W/O, or multiple emulsion of the O/ E/H or even E/H/E.
• the cosmetic composition applicable to the skin according to the invention is characterized in that it is in the form of an anhydrous composition.
• the cosmetic composition applicable to the skin according to the invention is characterized in that the anhydrous composition contains an aqueous phase whose mass percentage is less than 5% relative to the total mass of the composition .
• the cosmetic composition applicable to the skin according to the invention is characterized in that it is in the form of a foundation.
• the cosmetic composition applicable to the skin according to the invention is characterized in that it is in the form of a primer or a makeup base.
• the cosmetic composition applicable to the skin according to the invention is characterized in that it is in the form of an eyeshadow.
• the cosmetic composition applicable to the skin according to the invention is characterized in that it is in the form of a blush.
• the cosmetic composition applicable to the skin according to the invention is characterized in that it is in the form of a makeup-removing formulation.
• the invention also relates to a process for the preparation of a cosmetic composition applicable to the skin according to the present invention comprising the following steps: a) The production of a Guerbet alcohol in CIO, 2-isopropyl-5-methylhexan-l-ol (CAS 2051-33-4) by a Guerbet synthesis from isoamyl alcohol (CAS 123-51 -3). b) Mixing the product formed in step 1) with at least one biobased C>10 alcohol to form a mixture of biobased alcohols.
• c) Obtaining a volatile mixture of alkanes consisting of 2,3,6-trimethylheptane (CAS 4032-93-3) and a C>10 alkane, by a dehydration reaction followed by a reaction hydrogenation of the mixture of biobased alcohols formed in step 2). d) The addition of none, one or more alkanes to this volatile mixture of alkanes. e) The combination of this volatile mixture of alkanes with at least one compound chosen from non-volatile oils, shiny oils, pasty fatty substances, gelling agents, film-forming polymers, waxes, pigments, dyes, and their mixtures.
• the invention also relates to a process for the preparation of a cosmetic composition applicable to the skin according to the present invention comprising the following steps: a) The production of a Guerbet CIO alcohol, 2-isopropyl -5-methylhexan-l-ol (CAS 2051-33-4) by a Guerbet synthesis from isoamyl alcohol (CAS 123-51-3). b) Mixing the product formed in step 1) with biobased n-dodecanol to form a mixture of biobased alcohols.
• c) Obtaining a volatile mixture of alkanes consisting of 2,3,6-trimethylheptane (CAS 4032-93-3) and n-dodecane (CAS 112-40-3) by a dehydration reaction followed by a hydrogenation reaction of the mixture of biobased alcohols formed in step 2). d) The addition of none, one or more alkanes to this volatile mixture of alkanes. e) The combination of this volatile mixture of alkanes with at least one compound chosen from non-volatile oils, shiny oils, pasty fatty substances, gelling agents, film-forming polymers, waxes, pigments, dyes, and their mixtures.
• the process for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that step 1 of the process, namely the synthesis of Guerbet, is carried out from raw materials of vegetable, bacterial or animal origin.
• the process for preparing a cosmetic composition applicable to the defined skin according to the present invention is characterized in that step 1 of the process, namely the Guerbet synthesis, is carried out using a base chosen from the group consisting of: KOH, NaOH, NaOCHs, KOCH3.
• the process for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that step 1 of the process, namely the synthesis of Guerbet is carried out with using a catalyst chosen from the group comprising: copper derivatives such as PriCat Ou 50/8, at least one group VIII metal, such as nickel, palladium, platinum, derivatives thereof and mixtures thereof.
• a catalyst chosen from the group comprising: copper derivatives such as PriCat Ou 50/8, at least one group VIII metal, such as nickel, palladium, platinum, derivatives thereof and mixtures thereof.
• the method for preparing a cosmetic composition applicable to the defined skin according to the present invention is characterized in that step 1 of the method, namely the synthesis of Guerbet is carried out at temperatures between 150 and 300°C.
• the method for preparing a cosmetic composition applicable to the defined skin according to the present invention is characterized in that step 1 of the method, namely the synthesis of Guerbet is carried out at pressures between 1 and 15 bars.
• the method for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that step 1 of the method, namely the synthesis of Guerbet is carried out for a period between 10 and 24 hours.
• the method for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that step 1 of the method, namely the synthesis of Guerbet, makes it possible to obtain a mass percentage of alcohol in branched CIO greater than or equal to 75%.
• the method for preparing a cosmetic composition applicable to the defined skin according to the present invention is characterized in that step 1 of the method, namely the synthesis of Guerbet, makes it possible to obtain a mass percentage of alcohol in branched CIO greater than or equal to 90%.
• the method for preparing a cosmetic composition applicable to the defined skin according to the present invention is characterized in that step 1 of the method further comprises a step of purification by distillation to eliminate the impurities.
• the method for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that step 1 of the method, namely the synthesis of Guerbet, makes it possible to obtain a branched CIO alcohol whose percentage of carbon 14 ( 14 C) is greater than or equal to 75% determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1.
• the method for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that step 1 of the method, namely the synthesis of Guerbet, makes it possible to obtain a branched CIO alcohol whose percentage of carbon 14 ( 14 C) is greater than or equal to 90% determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1.
• the method for preparing a cosmetic composition applicable to the defined skin according to the present invention is characterized in that step 1 of the method, namely the synthesis of Guerbet, makes it possible to obtain a branched CIO alcohol whose percentage of carbon 14 ( 14 C) is 100% determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1.
• the method for preparing a cosmetic composition applicable to the defined skin according to the present invention is characterized in that in step 2 of the method, at least one biosourced C> alcohol is added. 12 selected from the group consisting of: n-dodecanol, n-tetradecanol, and mixtures thereof.
• the method for preparing a cosmetic composition applicable to the defined skin according to the present invention is characterized in that step 3 of the method is composed of a dehydration step then of a hydrogenation step.
• the method for preparing a cosmetic composition applicable to the defined skin according to the present invention is characterized in that the dehydration step of step 3 of the method is carried out using a catalyst selected from the group consisting of alumina and its derivatives.
• the method for preparing a cosmetic composition applicable to the defined skin according to the present invention is characterized in that the dehydration step of step 3 of the method is carried out using a catalytic support chosen from the group consisting of silica wool and its derivatives.
• the method for preparing a cosmetic composition applicable to the defined skin according to the present invention is characterized in that the dehydration step of step 3 of the method is carried out at temperatures comprised between 200 and 380°C.
• the method for preparing a cosmetic composition applicable to the defined skin according to the present invention is characterized in that the dehydration step of step 3 of the method is carried out under an inert atmosphere.
• the method for preparing a cosmetic composition applicable to the defined skin according to the present invention is characterized in that the dehydration step of step 3 of the method makes it possible to obtain a conversion in alkene in branched CIO greater than or equal to 95%. In one embodiment, the method for preparing a cosmetic composition applicable to the defined skin according to the present invention is characterized in that the dehydration step of step 3 of the method makes it possible to obtain a conversion in alkene in branched CIO greater than or equal to 99%.
• the method for preparing a cosmetic composition applicable to the defined skin according to the present invention is characterized in that the trimethylheptane obtained in the hydrogenation step of step 3 of the method is 2,3,6-trimethylheptane.
• the method for preparing a cosmetic composition applicable to the defined skin according to the present invention is characterized in that the hydrogenation step of step 3 of the method is carried out at the using a catalyst comprising at least one group VIII metal such as palladium, nickel, platinum, their derivatives and their mixtures.
• the method for preparing a cosmetic composition applicable to the defined skin according to the present invention is characterized in that the hydrogenation step of step 3 of the method is carried out at the using a catalytic support chosen from the group consisting of silica wool and its derivatives.
• the method for preparing a cosmetic composition applicable to the defined skin according to the present invention is characterized in that the hydrogenation step of step 3 of the method is carried out at temperatures between 100 and 250°C.
• the method for preparing a cosmetic composition applicable to the defined skin according to the present invention is characterized in that the hydrogenation step of step 3 of the method is carried out under an inert atmosphere. .
• the method for preparing a cosmetic composition applicable to the defined skin according to the present invention is characterized in that the hydrogenation step of step 3 of the method is preceded by a inerting with 15 bars of nitrogen in the reactor.
• the method for preparing a cosmetic composition applicable to the defined skin according to the present invention is characterized in that the hydrogenation step of step 3 of the method is preceded by a inerting with 5 bars of nitrogen three times in the reactor.
• the method for preparing a cosmetic composition applicable to the defined skin according to the present invention is characterized in that the hydrogenation step of step 3 of the method is carried out by addition of 2 to 15 bars of hydrogen in the reactor. In one embodiment, the method for preparing a cosmetic composition applicable to the defined skin according to the present invention is characterized in that the hydrogenation step of step 3 of the method is carried out by addition of 5 bars of hydrogen to the reactor.
• the method for preparing a cosmetic composition applicable to the defined skin according to the present invention is characterized in that the hydrogenation step of step 3 of the method is carried out by addition of 10 bars of hydrogen to the reactor.
• the method for preparing a cosmetic composition applicable to the defined skin according to the present invention is characterized in that the hydrogenation step of step 3 of the method is carried out for a duration from 3 to 12 p.m.
• the method for preparing a cosmetic composition applicable to the defined skin according to the present invention is characterized in that the hydrogenation step of step 3 of the method is carried out for a duration from 5 a.m.
• the method for preparing a cosmetic composition applicable to the defined skin according to the present invention is characterized in that the hydrogenation step of step 3 of the method makes it possible to obtain a conversion to 2,3,6-trimethylheptane greater than or equal to 95%.
• the method for preparing a cosmetic composition applicable to the defined skin according to the present invention is characterized in that the hydrogenation step of step 3 of the method makes it possible to obtain a conversion to 2,3,6-trimethylheptane greater than or equal to 99%.
• the method for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that the method makes it possible to obtain a mixture of volatile alkane defined according to the present invention.
• the process for preparing a cosmetic composition applicable to the skin is characterized in that the process makes it possible to obtain a deodorized or odorless volatile alkane mixture.
• This organoleptic characteristic is conducive to its use in cosmetic compositions.
• the method for preparing a cosmetic composition applicable to the defined skin according to the present invention is characterized in that step 4 of the method makes it possible to obtain a mixture of volatile alkane defined according to the present invention.
• the method for preparing a cosmetic composition applicable to the defined skin according to the present invention is characterized in that step 4 of the method makes it possible to obtain a volatile mixture of alkanes whose percentage of carbon 14 ( 14 C) is greater than or equal to 75% carbon 14 ( 14 C) determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1.
• the method for preparing a cosmetic composition applicable to the defined skin according to the present invention is characterized in that step 4 of the method makes it possible to obtain a volatile mixture of alkanes whose percentage of carbon 14 ( 14 C) is greater than or equal to 90% determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1.
• the method for preparing a cosmetic composition applicable to the defined skin according to the present invention is characterized in that step 4 of the method makes it possible to obtain a volatile mixture of alkanes whose percentage of carbon 14 ( 14 C) is 100% determined according to one of the following standards ASTM D6866, EN 16640 or EN 16785-1.
• the process for preparing a cosmetic composition applicable to the skin defined according to the present invention is characterized in that step 5 of the process makes it possible to obtain a cosmetic composition applicable to the skin comprising a mixture of volatile alkane defined according to the present invention.
• Turax up to 12000 rpm for 2 minutes.
• the mixture of phases 1, 2, 3 and 4 constitutes the oily phase of the cosmetic formulation.
• Phases 5 and 6 are then added to the mixture of phases 1, 2, 3 and 4 to produce the emulsion.
• the mixture obtained is gradually stirred with a Turax up to 12,000 rpm for 2 minutes.
• phase 7 is dispersed in the emulsion by gradual stirring with Turax up to 12,000 rpm for 2 minutes.
• Example 1 Composition and properties of a reference foundation
• the drying time at 20°C is measured after application to the skin of a panel of users, by carrying out tests to check the drying using a non-woven handkerchief from tO to tx , a marking test of a non-woven handkerchief being carried out every 30 seconds.
• the formulation is considered dry when there is no more transfer.
• the drying time on the skin of the reference foundation of example 1 is 3 min and 30 s.
• the reference foundation formulation has a satisfactory hold and is considered to be a long-wear formulation.
• Example 2 Composition and properties of a foundation comprising a volatile mixture of alkanes according to the prior art:
• Example 2 of a foundation comprising a volatile mixture of alkanes according to the prior art EP3773432A1, isododecane (CAS 13475-82-6), volatile solvent, present in the phase 1 of the reference formula has been substituted by a volatile mixture of alkanes of the prior art.
• the volatile solvent is a volatile mixture of alkanes consisting of 30% n-decane (CAS 124-18-5), 68% n-dodecane (CAS 112-40-3 ) and 2% n-tetradecane (CAS 629-59-4).
• Example 2 To establish this study, the foundation formulation of Example 2 was tested by a panel of users.
• the foundation formulation according to the prior art has a suitable staying power but is sticky.
• Example 3 Composition and properties of a foundation according to the invention:
• Example 3 of a foundation according to the present invention the isododecane (CAS 13475-82-6) present in phase 1 of the reference formula has been substituted by a volatile mixture of alkanes according to the present invention.
• the volatile mixture of alkanes consists of 45% 2,3,6-trimethylheptane (CAS 4032-93-3) and 55% n-dodecane (CAS 112-40 -3).
• the drying time on the skin of the foundation according to the invention of Example 3 is 4 minutes.
• the foundation formulation according to the present invention has a satisfactory staying power within the meaning of the present invention.
• Example 4 Composition and properties of a foundation according to the invention
• the volatile mixture of alkanes consists in this case of: 5% of 2,2,4-trimethylhexane (CAS 16747-26-5), 44% of 2.3, 6-trimethylheptane (CAS 4032-93-3) and 51% n-dodecane (CAS 112-40-3).
• the drying time on the skin of the foundation according to the invention of example 4 is 3 min and 30 s. [000558] This drying time is satisfactory for a foundation formulation within the meaning of the present invention.
• the foundation formulation according to the present invention has a satisfactory staying power within the meaning of the present invention.
• Example 5 Composition and properties of a foundation according to the invention
• Example 5 of a foundation according to the present invention the isododecane (CAS 13475-82-6) present in phase 1 of the reference formula has been substituted by a volatile mixture of alkanes according to the present invention.
• the volatile mixture of alkanes consists in this case of: 15% isododecane (CAS 13475-82-6), 35% 2,3,6-trimethylheptane (CAS 4032-93-3) and 50% n-dodecane (CAS 112-40-3).
• the drying time on the skin of the foundation according to the invention of example 5 is 3 min and 45 s.
• the foundation formulation according to the present invention has a satisfactory staying power within the meaning of the present invention.
• the OECD 301F method makes it possible to characterize the ease of biodegradation of a substance by a manometric respirometry test.

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• 2022
  • 2022-03-03 FR FR2201875A patent/FR3133127A1/fr active Pending
• 2023
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  • 2023-03-03 JP JP2024552236A patent/JP2025506980A/ja active Pending
  • 2023-03-03 US US18/843,413 patent/US20260041617A1/en active Pending

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