AEROSOL DEVICE CONTAINING A COMPOSITION COMPRISING A BRANCHED ALKANE, A FATTY SUBSTANCE AND A PROPELLANT

Abstract

AEROSOL DEVICE CONTAINING A COMPOSITION COMPRISING A BRANCHED ALKANE, A FATTY SUBSTANCE AND A PROPELLANT The invention relates to an aerosol device comprising: - a container containing a composition comprising a quantity greater than or equal to 30% by weight relative to the total weight of the composition of one or more C6-C14 branched alkanes, one or more fatty substances other than the C6-C14 branched alkanes and one or more propellants, - a means for dispensing said composition comprising: - a body (3) open at its two opposite axial ends, - a cooperating part (10) open at its two opposite axial ends, defining at least partially at least one dispensing orifice (12).

Description

Title of the invention: AEROSOL DEVICE CONTAINING A COMPOSITION COMPRISING A branched alkane, a fatty substance AND A propellant

[0001] The present invention relates to an aerosol device comprising a particular dispensing means and a composition comprising at least 30% by weight of one or more branched C6-C14 alkanes, at least one additional fatty substance and at least one propellant.

[0002] The invention also relates to a process for conditioning keratin fibers, in particular human keratin fibers such as hair, comprising at least one step of applying the composition according to the invention to said fibers.

[0003] The invention finally relates to the use of the composition according to the invention sprayed from the particular aerosol device for conditioning keratin fibers, in particular human keratin fibers such as hair, and in particular to provide softness, a smooth, non-sticky feel, shine, to facilitate detangling of the hair, to define the curls of the hair, to provide control of frizz and volume of the hair. The device associated with the composition makes it possible to deliver a light, non-weighting mist that is easy to spread on the hair without a greasy effect.

[0004] Many people find that the drying time of their hair is too long but the use of heating tools can sensitize the hair (curly, damaged, fine, long hair...)

[0005] They also seek to provide conditioning properties to their hair without having negative effects such as a greasy feel or appearance.

[0006] Indeed, these people want their hair to be easy to detangle, soft and shiny.

[0007] Additionally, people with curly hair may desire better curl definition, more evenness, and less volume and frizz, even in humid conditions. As such, some people find it difficult to control, define, and / or style their curly hair.

[0008] There is a need to provide compositions that simplify the styling routine, reduce hair drying time, provide conditioning to the hair, and protect the hair from heat.

[0009] The applicant has surprisingly and advantageously found that the use of a device provided with a dispensing means comprising a body open at both ends opposite axial ends and a cooperating portion open at its two opposite axial ends, at least partially defining a dispensing orifice, for dispensing a composition comprising at least 30% by weight of one or more C6-C14 branched alkanes, one or more fatty substances, different from the C6-C14 branched alkanes and at least one propellant, made it possible to obtain better distribution of the composition, a more homogeneous result, faster drying, a soft, smooth and non-greasy feel, without transfer and without a wet appearance. The hair is shiny and visually smooth with frizz control.

[0010] The subject of the invention, according to a first of its aspects, is an aerosol device comprising:

[0011] - a container containing a composition comprising a greater quantity or equal to 30% by weight relative to the total weight of the composition of one or more branched C6-C14 alkanes, one or more bodies other than the branched C6-C14 alkanes and one or more propellants,

[0012] - a means for distributing said composition comprising:

[0013] - a body open at its two opposite axial ends,

[0014] - a cooperating part open at its two opposite axial ends, defining at at least partially at least one dispensing orifice

[0015] This particular combination allows easy application and a homogeneous, fine and light distribution of the hair composition on the hair, thus leading to improved conditioning properties with a natural result.

[0016] It helps to accelerate the drying of the hair with or without the addition of heat. In particular, it provides a pleasant cosmetic feel, including a smooth, non-sticky, transfer-free feel, makes it easier to detangle the hair and adds shine. The composition does not leave a greasy effect and provides volume control.

[0017] The present invention also relates to a method for conditioning keratin fibers, comprising the implementation of the device as defined above. In particular, the method comprises a step of applying to the hair, dry or wet, preferably wet, a composition sprayed from an aerosol device according to the invention, optionally a rinsing step, preferably without rinsing after a possible exposure time.

[0018] Other objects, characteristics, aspects and advantages of the invention will appear even more clearly on reading the description and the example which follows.

[0019] In what follows, and unless otherwise indicated, the limits of a domain of values are included in this domain, in particular in the expressions “between” and “ranging from ... to ...”.

[0020] Furthermore, the expression “at least one” used in the present description is equivalent to the expression “one or more”.

[0021] By "keratin fibers" is meant fibers of human or animal origin such as hair, body hair, eyelashes, eyebrows, wool, angora, cashmere or fur. According to the present invention, the keratin fibers are preferably human keratin fibers, more preferably hair.

[0022] According to the invention, the aerosol device comprises a container which contains a composition comprising a quantity greater than or equal to 30% by weight of one or more branched C6-C14 alkanes, one or more fatty substances other than the branched C6-C14 alkanes and at least one propellant. Branched C6-C14 alkanes

[0023] The C6-C14 branched alkane(s) are preferably C8-C14 branched alkanes. They are in particular chosen from isohexane, isooctane, isodecane, isododecane and mixtures thereof. Isododecane is particularly preferred.

[0024] Preferably, the C6-C14 branched alkane(s) are present in the composition in an amount ranging from 30 to 70% by weight, better still from 40 to 60% by weight, and even more preferably from 45 to 55% by weight relative to the total weight of the composition. Propellants

[0025] The composition according to the invention also comprises one or more propellants.

[0026] Examples of propellant agents that can be used in the aerosol device of the present invention are liquefied gases such as dimethyl ether, chlorinated and / or fluorinated hydrocarbons such as 1,1-difluoroethane, or volatile hydrocarbons, such as in particular C3.5 alkanes, such as propane, isopropane, n-butane, isobutane, pentane, or compressed gases such as air, nitrogen, carbon dioxide, and mixtures thereof.

[0027] Preferably, mention may be made of dimethyl ether and C3-5 alkanes and in particular propane, n-butane, isobutane and their mixtures. More preferably, the propellant is isobutane.

[0028] Preferably, the propellant(s) are present in the composition in an amount ranging from 30 to 70% by weight, better still from 40 to 60% by weight, and even more preferably from 45 to 55% by weight relative to the total weight of the composition. Fatty body

[0029] The composition further comprises one or more fatty substances other than the C6-C14 branched alkanes.

[0030] For the purposes of the present invention, the melting point corresponds to the temperature of the most endothermic peak observed in thermal analysis (differential scanning calorimetry or DSC) as described in the ISO 11357-3; 1999 standard. The melting point can be measured using a differential scanning calorimeter (DSC), for example the calorimeter sold under the name "MDSC 2920" by the company TA Instruments. In the present application, all melting points are determined at atmospheric pressure (1,013.105 Pa).

[0031] By "fatty substance" is meant an organic compound insoluble in water at 25°C and at atmospheric pressure (1,013.105 Pa) (solubility less than 5% by weight, and preferably less than 1% by weight, even more preferably less than 0.1% by weight). The fatty substances have in their structure at least one hydrocarbon chain comprising at least 6 carbon atoms and / or a chain of at least one siloxane group. In addition, the fatty substances are generally soluble in organic solvents under the same temperature and pressure conditions, such as for example chloroform, dichloromethane, carbon tetrachloride, ethanol, benzene, toluene, tetrahydrofuran (THF), vaseline oil or decamethylcyclopentasiloxane.

[0032] Fatty bodies other than C6-C14 branched alkanes can be solid or liquid, silicone or non-silicone.

[0033] By "fatty ester" is meant an ester of fatty acid and / or fatty alcohol.

[0034] By "fatty ether" is meant a compound comprising at least one function ether, linear or branched, saturated or unsaturated, comprising at least one hydrocarbon group having from 6 to 40 carbon atoms.

[0035] In particular, the fatty substances of the invention are not (poly)oxyalkylenated or (poly)glycerolated ethers.

[0036] By “oil” is meant a “fatty substance” which is liquid at room temperature (25°C) and at atmospheric pressure (760 mm Hg or 1.013 105 Pa).

[0037] By “non-silicone fatty body” is meant a compound which does not contain a chain of siloxane groups (-SiO-, preferably which does not contain a silicone atom.

[0038] Solid fatty bodies Solid fatty bodies generally have a melting point greater than 25°C, preferably greater than or equal to 28°C, more preferably greater than or equal to 30°C at atmospheric pressure (1,013.105 Pa). In the present application, this or these fatty bodies are also called “solid fatty body(ies)”.

[0039] The solid fatty bodies according to the invention preferably have a viscosity greater than 2 Pa.s, measured at 25°C and at a shear rate of 1 s1.

[0040] The fatty substance(s) having a melting point above 25°C are preferably chosen from solid fatty acids, solid fatty alcohols, solid esters of fatty acids and / or fatty alcohols, waxes, butters, ceramides, solid mono-, di- or triglycerides, and mixtures thereof.

[0041] By "fatty acids" is meant a long-chain carboxylic acid comprising from 6 to 40 carbon atoms, preferably from 8 to 30 carbon atoms. The solid fatty acids according to the invention preferably comprise from 10 to 30 carbon atoms and better still from 14 to 22 carbon atoms. These fatty acids are neither oxyalkylenated nor glycerolated.

[0042] The solid fatty acids that can be used in the present invention are in particular chosen from myristic acid, cetyl acid, stearylic acid, palmitic acid, stearic acid, lauric acid, behenic acid, and mixtures thereof.

[0043] By "fatty alcohol" is meant a long-chain aliphatic alcohol comprising from 6 to 40 carbon atoms, preferably from 8 to 30 carbon atoms and comprising at least one hydroxyl group OH. These fatty alcohols are neither oxyalkylenated nor glycerolated.

[0044] The solid fatty alcohols may be saturated or unsaturated, linear or branched, and comprise from 8 to 40 carbon atoms, preferably from 10 to 30 carbon atoms, better still from 12 to 30 carbon atoms. Preferably, the solid fatty alcohols are of structure R-OH with R denoting a linear alkyl group, optionally substituted by one or more hydroxyl groups, comprising from 8 to 40, preferably from 10 to 30 carbon atoms, better still from 12 to 30, or even from 12 to 24 atoms, even better still from 14 to 22 carbon atoms.

[0045] The solid fatty alcohols that can be used are preferably chosen from saturated (mono)alcohols, linear or branched, preferably linear and saturated, comprising from 8 to 40 carbon atoms, better still from 10 to 30, or even from 12 to 24 atoms, even better still from 14 to 22 carbon atoms.

[0046] The solid fatty alcohols that can be used can be chosen from, alone or in a mixture: - myristic or myristyl alcohol (or 1-tetradecanol); - cetyl alcohol (or 1-hexadecanol); - stearyl alcohol (or 1-octadecanol); - arachidyl alcohol (or 1-eicosanol); - behenyl alcohol (or 1-docosanol); - lignoceryl alcohol (or 1-tetracosanol); - ceryl alcohol (or 1-hexacosanol); - montanyl alcohol (or 1-octacosanol); - myricyl alcohol (or 1-triacontanol).

[0047] Preferably, the solid fatty alcohol is chosen from cetyl alcohol, stearyl alcohol, behenyl alcohol, myristyl alcohol, arachidyl alcohol and mixtures thereof, such as cetylstearyl or cetearyl alcohol. In a particularly preferred manner, the solid fatty alcohol is chosen from cetyl alcohol, stearyl alcohol or mixtures thereof such as cetylstearyl alcohol, better still the solid fatty alcohol is cetylstearyl alcohol.

[0048] The solid fatty acid and / or fatty alcohol esters that may be used are preferably chosen from esters derived from C9-C26 carboxylic fatty acid and / or C9-C26 fatty alcohol.

[0049] Preferably, these solid fatty esters are esters of saturated, linear or branched carboxylic acid, comprising at least 10 carbon atoms, preferably from 10 to 30 carbon atoms and more particularly from 12 to 24 carbon atoms, and of saturated, linear or branched monoalcohol, comprising at least 10 carbon atoms, preferably from 10 to 30 carbon atoms and more particularly from 12 to 24 carbon atoms. The saturated carboxylic acids may optionally be hydroxylated, and are preferably monocarboxylic acids.

[0050] It is also possible to use esters of C4-C22 di- or tricarboxylic acids and C1-C22 alcohols and esters of mono-, di- or tricarboxylic acids and C2-C26 di-, tri-, tetra- or pentahydroxylated alcohols.

[0051] Mention may in particular be made of octyldodecyl behenate, isocetyl behenate, cetyl lactate, stearyl octanoate, octyl octanoate, cetyl octanoate, decyl oleate, hexyl stearate, octyl stearate, myristyl stearate, cetyl stearate, stearyl stearate, octyl pelargonate, cetyl myristate, myristyl myristate, stearyl myristate, diethyl sebacate, diisopropyl sebacate, diisopropyl adipate, di n-propyl adipate, dioctyl adipate, dioctyl maleate, octyl palmitate, myristyl palmitate, cetyl palmitate, stearyl palmitate, and mixtures thereof.

[0052] Preferably, the solid fatty acid and / or fatty alcohol esters are chosen from C9-C26 alkyl palmitates, in particular myristyl, cetyl and stearyl palmitates; C9-C26 alkyl myristates such as cetyl myristate, stearyl myristate and myristyl myristate; C9-C26 alkyl stearates, in particular myristyl, cetyl and stearyl stearates; and mixtures thereof.

[0053] Particularly preferably, the solid fatty acid and / or fatty alcohol esters are chosen from myristyl stearate, myristyl palmitate, and mixtures thereof.

[0054] A wax, within the meaning of the present invention, is a lipophilic compound, solid at 25°C and atmospheric pressure, with a reversible solid / liquid state change, having a melting temperature greater than approximately 40°C and up to 200°C, and having an anisotropic crystalline organization in the solid state. Generally speaking, the size of the wax crystals is such that the crystals diffract and / or diffuse light, giving the composition containing them a more or less opaque cloudy appearance. By bringing the wax to its melting temperature, it is possible to make it miscible with oils and form a microscopically homogeneous mixture, but by bringing the temperature of the mixture back to room temperature, a recrystallization of the wax is obtained, detectable microscopically and macroscopically (opalescence).

[0055] In particular, the waxes suitable for the invention may be chosen from waxes of animal, vegetable, mineral origin, non-silicone synthetic waxes and their mixtures.

[0056] Mention may in particular be made of hydrocarbon waxes, such as beeswax or modified beeswaxes (cerabellina), lanolin wax and lanolin derivatives, spermaceti; waxes from cork or sugar cane fibers, olive wax, rice bran wax, Carnauba wax, Candellila wax, Ouricury wax, Alfa wax, Berry wax, Shellac wax, Japan wax and sumac wax, absolute flower waxes; Montan wax, orange and lemon waxes, microcrystalline waxes, paraffins, petroleum jelly, lignite and ozokerite; polyethylene waxes, waxes obtained by Fisher-Tropsch synthesis and waxy copolymers, as well as their esters.

[0057] Mention may also be made of C2 to C60 microcrystalline waxes, such as Microwax HW.

[0058] Mention may also be made of the PM 500 polyethylene wax marketed under the reference Permalen 50-L polyethylene.

[0059] Mention may also be made of waxes obtained by catalytic hydrogenation of animal or vegetable oils having linear or branched fatty chains, from C8 to C32. Among these, mention may in particular be made of isomerized jojoba oil, such as trans isomerized partially hydrogenated jojoba oil, in particular that manufactured or marketed by the company Desert Whale under the commercial reference Iso-Jojoba-50®, hydrogenated sunflower oil, hydrogenated castor oil, hydrogenated coconut oil, hydrogenated lanolin oil, and di-(trimethyloi-1,1,1 propane) tetrastearate, in particular that sold under the name Hest 2T-4S® by the company HETERENE.

[0060] It is also possible to use waxes obtained by hydrogenation of castor oil esterified with cetyl alcohol, such as those sold under the names Phytowax ricin 16L64® and 22L73® by the company SOPHIM.

[0061] As wax, it is also possible to use a C2o to C4o alkyl (hydroxystearyloxy)stearate (the alkyl group comprising from 20 to 40 carbon atoms), alone or as a mixture. Such wax is sold in particular under the names “Kester Wax K 82 P®”, “Hydroxypoly ester K 82 P®” and “Kester Wax K 80 P®” by the company KOSTER KEUNEN.

[0062] It is also possible to use microwaxes in the compositions of the invention;we can cite in particular camauba microwaxes, such as that marketed under the name MicroCare 350® by the company MICRO POWDERS, synthetic wax microwaxes, such as that marketed under the name MicroEase 114S® by the company MICRO POWDERS, microwaxes consisting of a mixture of camauba wax and polyethylene wax, such as those marketed under the names Micro Care 300® and 310® by the company MICRO POWDERS, microwaxes consisting of a mixture of camauba wax and synthetic wax, such as that marketed under the name Micro Care 325® by the company MICRO POWDERS, polyethylene microwaxes, such as those marketed under the names Micropoly 200®, 220®, 220L® and 250S® by the company MICRO POWDERS and polytetrafluoroethylene microwaxes, such as those marketed under the names Microslip 519® and 519 L® by the company MICRO POWDERS.;

[0063] The waxes are preferably chosen from mineral waxes such as paraffin wax, vaseline wax, lignite wax or ozokerite; vegetable waxes such as cocoa butter, shea butter or cork or sugar cane fiber waxes, olive wax, rice bran wax, hydrogenated jojoba wax, Ouricoury wax, Camauba wax, Candelila wax, Alfa wax, or absolute flower waxes such as blackcurrant flower essential wax sold by the company BERTIN (France); waxes of animal origin such as beeswax or modified beeswax (cerabellina), spermaceti, lanolin wax and lanolin derivatives; microcrystalline waxes; and mixtures thereof.

[0064] Butters can also be used.

[0065] For the purposes of the present invention, the term "butter" (also called "pasty fatty body") means a lipophilic fatty compound with a reversible solid / liquid state change and comprising, at a temperature of 25°C, a liquid fraction and a solid fraction, and at atmospheric pressure (760 mm Hg). Preferably, the butter(s) according to the invention have a melting start temperature greater than 25°C and an end melting temperature less than 60°C.

[0066] Preferably the particular butter(s) are of vegetable origin such as those described in Ullmann's Encyclopedia of Industrial Chemistry ("Fats and Fatty Oils", A. Thomas, Published Online: 15 JUN 2000, DOI: 10.1002 / 14356007.al0_173, point 13.2.2.2. Shea Butter, Borneo Tallow, and Related Fats (Vegetable Butters)).

[0067] We can cite more particularly shea butter, Nilotica Shea butter (Butyrospermum parkii), Galam butter (Butyrospermum parkii), Borneo butter or fat or tengkawang tallow) (Shorea stenoptera), Shorea butter, Illipe butter, Madhuca butter or Bassia Madhuca longifolia, mowrah butter (Madhuca Latifolia), Katiau butter (Madhuca mottleyana), Phulwara butter (M.butyracea), Mango Butter (Mangifera indica), Murumuru Butter (Astrocaryum murumuru), Kokum Butter (Garcinia Indica), Ucuuba Butter (Virola sebifera), Tucuma Butter, Painya Butter (Kpangnan) (Pentadesma butyracea), Coffee Butter (Coffea arabica), Apricot Butter (Prunus Armeniaca), Macadamia Butter (Macadamia Ternifolia), Grape Seed Butter (Vitis vinifera), Avocado Butter (Persea gratissima), Olive Butter (Olea europaea), Sweet Almond Butter (Prunus amygdalus dulcis) and Cocoa Butter Sunflower Butter.

[0068] Ceramides or ceramide analogues such as glycoceramides, capable of being used in the compositions according to the invention, are known; mention may be made in particular of ceramides of classes I, II, III and V according to the DAWNING classification.

[0069] The ceramides or their analogues which may be used preferably correspond to the following formula:

[0070] in which: - Ri denotes a linear or branched, saturated or unsaturated alkyl group derived from C14-C30 fatty acids, this group being able to be substituted by a hydroxyl group in the alpha position, or a hydroxyl group in the omega position esterified by a saturated or unsaturated C16-C30 fatty acid; - R2 denotes a hydrogen atom, a (glycosyl)n group, a (galactosyl)m group or a sulfogalactosyl group, in which n is an integer ranging from 1 to 4 and m is an integer ranging from 1 to 8; - R3 denotes a C15-C26 hydrocarbon group, saturated or unsaturated in the alpha position, this group possibly being substituted by one or more C1-C14 alkyl groups; it being understood that in the case of natural ceramides or glycoceramides, R3 may also denote a C15-C26 alpha-hydroxyalkyl group, the hydroxyl group being optionally esterified by a C16-C30 alpha-hydroxy acid.

[0071] Preferably, ceramides are used for which Ri denotes a saturated or unsaturated alkyl group derived from C14-C30 fatty acids; R2 denotes a galactosyl or sulfogalactosyl group; and R3 denotes a -CH=CH-(CH2)i2-CH3 group.

[0072] The more particularly preferred ceramides are the compounds for which R 1 denotes a saturated or unsaturated alkyl derived from C 16 -C 22 fatty acids; R 2 denotes a hydrogen atom and R 3 denotes a linear saturated or unsaturated C 15 group.

[0073] It is also possible to use compounds for which Ri denotes a saturated or unsaturated alkyl radical derived from C[2-C22] fatty acids; R2 denotes a galactosyl or sulfogalactosyl radical and R3 denotes a saturated or unsaturated C[12-C22] hydrocarbon radical and preferably a -CH=CH-(CH2)i2-CH3 group.

[0074] As particularly preferred compounds, mention may also be made of 2-N-linoleoylamino-octadecane-1,3-diol; 2-N-oleoylamino-octadecane-1,3-diol; 2-N-palmitoylamino-octadecane-1,3-diol; 2-N-stearoylamino-octadecane-1,3-diol; 2-N-behenoylamino-octadecane-1,3-diol; 2-N-[2-hydroxy-palmitoyl]-amino-octadecane-1,3-diol; 2-N-stearoylamino-octadecane-1,3,4 triol and in particular N-stearoyl phytosphingosine 2-N-palmitoylamino-hexadecane-1,3-diol, N-linoleoyldihydrosphingosine, N-oleoyldihydrosphingosine, N-palmitoyldihydrosphingosine, N-stearoyldihydrosphingosine, and N-behenoyldihydrosphingosine, N-docosanoyl N-methyl-D-glucamine, N-(2-hydroxyethyl)-N-(3-cetyloxy-2-hydroxypropyl)cetyl acid amide and bis-(N-hydroxyethyl N-cetyl) malonamide; and mixtures thereof. Preferably, N-oleoyldihydrosphingosine will be used.

[0075] Preferably, the fatty substance(s) having a melting point above 25°C are chosen from solid fatty alcohols, solid esters of fatty acids and / or fatty alcohols, waxes, butters, and mixtures thereof, more preferably from solid fatty alcohols, solid esters of fatty acids and / or fatty alcohols, butters and mixtures thereof.

[0076] The liquid fatty substances other than the C6-C14 branched alkanes may be chosen from triglycerides of vegetable or synthetic origin, fluorinated oils, fatty esters other than triglycerides, C6 to C16 liquid hydrocarbons, liquid hydrocarbons comprising more than 16 carbon atoms, fatty alcohols, fatty ethers, dialkyl carbonates, silicones and mixtures thereof.

[0077] The liquid fatty substances other than the C6-C14 branched alkanes are preferably chosen from triglycerides of vegetable or synthetic origin, fluorinated oils, liquid fatty esters other than triglycerides, liquid fatty alcohols, liquid fatty ethers, dialkyl carbonates, silicones and mixtures thereof.

[0078] More particularly, the liquid fatty substances other than C6-C14 alkanes are chosen from liquid esters of fatty acid and / or fatty alcohol and silicones and mixtures thereof. Triglycerides

[0079] The triglyceride oils of vegetable or synthetic origin are preferably chosen from liquid triglycerides of fatty acids containing from 6 to 30 carbon atoms such as the triglycerides of heptanoic or octanoic acids or, for example, sunflower, linseed, olive, safflower, argan, corn germ, wheat germ, soybean, pumpkin seed, grape seed, sesame, hazelnut, apricot kernel, macadamia, arara, sunflower, castor, avocado oils, triglycerides of caprylic / capric acids such as those sold by the company Stearineries Dubois or those sold under the names Miglyol® 810, 812 and 818 by the company Dynamit Nobel, shea butter oil, and mixtures thereof. Liquid fatty alcohols

[0080] The liquid fatty alcohols suitable for implementing the invention are more particularly chosen from saturated or unsaturated, linear or branched, preferably unsaturated or branched alcohols comprising from 6 to 40 carbon atoms, preferably from 8 to 30 carbon atoms. Examples that may be mentioned are octyldodecanol, 2-butyloctanol, 2-hexyldecanol, 2-undecylpentadecanol, isostearyl alcohol, isocetyl alcohol, oleyl alcohol, linolenic alcohol, ricinoleic alcohol, undecylenic alcohol or linoleic alcohol, and mixtures thereof. Liquid fatty esters

[0081] As regards the liquid esters of fatty acids and / or fatty alcohols, different from the triglycerides mentioned above, mention may in particular be made of esters of saturated or unsaturated aliphatic mono or polyacids, linear in C1-C26 or branched in C3-C26 and of saturated or unsaturated aliphatic mono or polyalcohols, linear in C1-C26 or branched in C3-C26, the total number of carbons in the esters being greater than or equal to 10.

[0082] Preferably, for the monoalcohol esters, at least one of the alcohol or acid from which the esters of the invention are derived is branched and / or unsaturated.

[0083] Among the monoesters, mention may be made of dihydroabietyl behenate; octyldodecyl behenate; isocetyl behenate; decyl oleate; isocetyl isostearate; isocetyl laurate; isocetyl stearate; isodecyl octanoate; isodecyl oleate; isononyl isononanoate; isostearyl palmitate; methyl acetyl ricinoleate; octyl isononanoate; 2-ethylhexyl isononate; octyldodecyl erucate; oleyl erucate; ethyl and isopropyl palmitates, ethyl-2-hexyl palmitate, 2-octyldecyl palmitate, alkyl myristates such as 2-octyldodecyl isopropyl myristate, isobutyl stearate; 2-hexyldecyl laurate, and mixtures thereof /

[0084] Preferably among the monoesters of monoacids and monoalcohols, use will be made of isopropyl palmitates, alkyl myristates such as isopropyl myristate, isocetyl stearate, 2-ethylhexyl isononanoate, isodecyl neopentanoate, and isononyl isononanoate and mixtures thereof. Still within the framework of this variant, use may also be made of esters of C4-C22 di or tricarboxylic acids and C1-C22 alcohols and esters of mono, di or tricarboxylic acids and C2-C26 di, tri, tetra or pentahydroxy alcohols.

[0085] Mention may in particular be made of: diethyl sebacate; diisopropyl sebacate; diisopropyl adipate; di-n-propyl adipate; dioctyl adipate; dioctyl maleate; glyceryl undecylenate; octyldodecyl stearoyl stearate; pentaerythrityl monoricinoleate; pentaerythrityl tetraisononanoate; pentaerythrityl tetrapelargonate; pentaerythrityl tetraisostearate; pentaerythrityl tetraoctanoate; propylene glycol dicaprylate; propylene glycol dicaprate, tridecyl erucate; triisopropyl citrate; glyceryl trilactate; glyceryl trioctanoate, propylene glycol dioctanoate; neopentyl glycol diheptanoate; diethylene glycol diisocyanate; and mixtures thereof.

[0086] The composition may also comprise, as fatty ester, esters of aromatic acids and C8-C18 fatty alcohols, such as esters of benzoic acid and C8-C16 fatty alcohols, in particular C12-C15 alkyl benzoate.

[0087] The composition may also comprise, as fatty ester, esters and diesters of sugars of C6-C3 fatty acids, preferably C12-C22-H. It is recalled that the term "sugar" means oxygenated hydrocarbon compounds which have several alcohol functions, with or without aldehyde or ketone function, and which comprise at least 4 carbon atoms. These sugars may be monosaccharides, oligosaccharides or polysaccharides.

[0088] Suitable sugars that may be mentioned include, for example, sucrose (or saccharose), glucose, galactose, ribose, fucose, maltose, fructose, mannose, arabinose, xylose, lactose, and their derivatives, in particular alkylated ones, such as methylated derivatives such as methylglucose.

[0089] The esters of sugars and fatty acids may be chosen in particular from the group comprising the esters or mixtures of esters of sugars described above and of C6-C30 fatty acids, preferably C12-C22, linear or branched, saturated or unsaturated. If they are unsaturated, these compounds may comprise one to three carbon-carbon double bonds, conjugated or not.

[0090] The esters according to this variant can also be chosen from mono-, di-, tri- and tetra-esters, polyesters and their mixtures.

[0091] These esters may be, for example, oleate, laurate, palmitate, myristate, behenate, cocoate, stearate, linoleate, linolenate, caprate, arachidonates, or mixtures thereof, such as in particular the mixed esters oleo-palmitate, oleo-stearate, palmito-stearate.

[0092] More particularly, mono- and di-esters are used, and in particular mono- or di-oleate, stearate, behenate, oleopalmitate, linoleate, linolenate, oleostearate, of sucrose, glucose or methylglucose, and mixtures thereof.

[0093] An example of this is the product sold under the name Glucate® DO by the company Amerchol, which is a methylglucose dioleate. Dialkylcarbonates

[0094] It is also possible to use dialkylcarbonates, in particular dialkyl(Cl-C12)carbonates, preferably dialkyl(C4-C12)carbonates such as dicaprylylcarbonate. Fatty ethers

[0095] The liquid fatty ethers may be chosen from dialkyl ethers, in particular dialkyl(Cl-C12) ethers, preferably dialkyl(C4-C12) ethers such as in particular dicaprylyl ether.

[0096] Liquid hydrocarbonsLiquid hydrocarbons other than C6-C14 alkanes may be linear, optionally cyclic, and are preferably chosen from alkanes. For example, mention may be made of hexane, cyclohexane, undecane, dodecane, tridecane, isoparaffins such as isohexadecane and mixtures thereof.

[0097] Liquid hydrocarbons comprising more than 16 carbon atoms may be linear or branched, of mineral or synthetic origin, and are preferably chosen from paraffin or vaseline oils, polydecenes, hydrogenated polyisobutene such as Parléam®, and mixtures thereof. Silicones

[0098] The silicones which can be used in the cosmetic compositions of the present invention are volatile or non-volatile, cyclic, linear or branched silicones, modified or not by organic groups, having a viscosity of 5.106 to 2.5 m2 / s at 25°C and preferably 1.105 to 1 m2 / s.

[0099] The silicones which can be used in accordance with the invention can be in the form of oils, waxes, resins or gums.

[0100] Preferably, the silicone is chosen from polydialkylsiloxanes, in particular polydimethylsiloxanes (PDMS), and organomodified polysiloxanes comprising at least at least one functional group selected from poly(oxyalkylene) groups, amino groups and alkoxy groups.

[0101] Organopolysiloxanes are further defined in Walter NOLL's "Chemistry and Technology of Silicones" (1968), Academie Press. They may be volatile or non-volatile.

[0102] When they are volatile, the silicones are more particularly chosen from those having a boiling point between 60°C and 260°C, and more particularly still from: i. cyclic polydialkylsiloxanes containing from 3 to 7, preferably from 4 to 5, silicon atoms. These include, for example, octamethylcyclotetrasiloxane marketed in particular under the name VOLATILE SILICONE® 7207 by UNION CARBIDE or SILBIONE® 70045 V2 by RHODIA, decamethylcyclopentasiloxane marketed under the name VOLATILE SILICONE® 7158 by UNION CARBIDE, and SILBIONE® 70045 V5 by RHODIA, as well as mixtures thereof.

[0103] Mention may also be made of cyclocopolymers of the dimethylsiloxane / methylalkylsiloxane type, such as SILICONE VOLATILE® FZ 3109 marketed by the company UNION CARBIDE, of formula:

[0104] Mention may also be made of mixtures of cyclic polydialkylsiloxanes with organic compounds derived from silicon, such as the mixture of octamethylcyclotetrasiloxane and tetratrimethylsilylpentaerythritol (50 / 50) and the mixture of octamethylcyclotetrasiloxane and oxy-1,1'-(hexa-2,2,2',2',3,3'-trimethylsilyloxy) bis-neopentane;

[0105] (ii) linear volatile polydialkylsiloxanes having 2 to 9 silicon atoms and having a viscosity less than or equal to 5.106m2 / s at 25°C. This is, for example, decamethyltetrasiloxane marketed in particular under the name "SH 200" by the company TORAY SILICONE. Silicones falling into this class are also described in the article published in Cosmetics and Toiletries, Vol. 91, Jan. 76, P. 27-32 - TODD & BYERS "Volatile Silicone fluids for cosmetics".

[0106] Preferably, non-volatile polydialkylsiloxanes, polydialkylsiloxane gums and resins, polyorganosiloxanes modified by the above organofunctional groups and their mixtures are used.

[0107] These silicones are more particularly chosen from polydialkylsiloxanes, among which we can mainly cite polydimethylsiloxanes with trimethylsilyl end groups. The viscosity of the silicones is measured at 25°C according to the ASTM 445 Appendix C standard.

[0108] Among these polydialkylsiloxanes, the following commercial products may be mentioned, without limitation:

[0109] - SILBIONE® oils of the 47 and 70 047 series or MIRASIL® oils marketed by RHODIA such as, for example, oil 70 047 V 500 000;

[0110] - the oils of the MIRASIL® series marketed by the company RHODIA;

[0111] - DOW CORNING company 200 series oils such as DC200 having viscosity 60,000 mm2 / s;

[0112] - VISCASIL® oils from GENERAL ELECTRIC and certain SF series oils (SF 96, SF 18) from GENERAL ELECTRIC.

[0113] Mention may also be made of polydimethylsiloxanes with dimethylsilanol end groups known under the name dimethiconol (CTFA), such as the oils of series 48 from the company RHODIA.

[0114] In this class of polydialkylsiloxanes, we can also cite the products marketed under the names "ABIL WAX® 9800 and 9801" by the company GOLDSCHMIDT which are polydialkyl (C1-C20) siloxanes.

[0115] The silicone gums that can be used in accordance with the invention are in particular polydialkylsiloxanes, preferably polydimethylsiloxanes having high number-average molecular masses of between 200,000 and 1,000,000, used alone or as a mixture in a solvent. This solvent can be chosen from volatile silicones, polydimethylsiloxane oils (PDMS), polyphenylmethylsiloxane oils (PPMS), isoparaffins, polyisobutylenes, methylene chloride, pentane, dodecane, tridecane or mixtures thereof.

[0116] Products which can be used more particularly in accordance with the invention are mixtures such as:

[0117] - mixtures formed from a polydimethylsiloxane hydroxylated at the end of chain, or dimethiconol (CTFA) and a cyclic polydimethylsiloxane also called cyclomethicone (CTFA) such as the product Q2 1401 marketed by the company DOW CORNING;

[0118] - mixtures of a polydimethylsiloxane gum and a cyclic silicone such as that the product SF 1214 Silicone Fluid from the company GENERAL ELECTRIC, this product is an SF 30 gum corresponding to a dimethicone, having a number average molecular weight of 500,000 solubilized in the oil SF 1202 Silicone Fluid corresponding to decamethylcyclopentasiloxane;

[0119] - mixtures of two PDMS of different viscosities, and more particularly of a PDMS gum and a PDMS oil, such as the product SF 1236 from the company GENERAL ELECTRIC. The product SF 1236 is the mixture of a SE 30 gum defined above having a viscosity of 20 m2 / s and an SF 96 oil with a viscosity of 5.10 6m2 / s. This product preferably contains 15% SE 30 gum and 85% SF 96 oil.

[0120] The organopolysiloxane resins which can be used in accordance with the invention are crosslinked siloxane systems containing the following units:

[0121] R2SiO2 / 2, R3SiOi / 2, RSiO3 / 2 and SiO4 / 2

[0122] in which R represents an alkyl having 1 to 16 carbon atoms. Among these products, those particularly preferred are those in which R denotes a lower C1-C4 alkyl group, more particularly methyl.

[0123] Among these resins, we can cite the product marketed under the name "DOW CORNING 593" or those marketed under the names "SILICONE FLUID SS 4230 and SS 4267" by the company GENERAL ELECTRIC and which are silicones with a dimethyl / trimethyl siloxane structure.

[0124] Mention may also be made of trimethylsiloxysilicate type resins marketed in particular under the names X22-4914, X21-5034 and X21-5037 by the company SHIN-ETSU.

[0125] The organomodified silicones which can be used in accordance with the invention are silicones as defined above and comprising in their structure one or more organofunctional groups attached via a hydrocarbon group.

[0126] In addition to the silicones described above, the organomodified silicones may be polydiaryl siloxanes, in particular polydiphenylsiloxanes, and polyalkyl-arylsiloxanes functionalized by the organofunctional groups mentioned above.

[0127] The polyalkylarylsiloxanes are particularly chosen from polydimethyl / methylphenylsiloxanes, linear and / or branched polydimethyl / diphenylsiloxanes with a viscosity ranging from 1.105 to 5.10 2m2 / s at 25°C.

[0128] Among these polyalkylarylsiloxanes, we can cite as an example the products marketed under the following names:

[0129] . SILBIONE® oils of the 70 641 series from RHODIA;

[0130] . oils of the RHODORSIL® 70 633 and 763 series from RHODIA;

[0131] . DOW CORNING 556 COSMETIC GRAD FLUID oil from DOW CORNING;

[0132] . BAYER PK series silicones such as the PK20 product;

[0133] . silicones of the PN, PH series from BAYER such as the PN1000 and PH1000 products;

[0134] . certain oils of the SF series of GENERAL ELECTRIC such as SF 1023, SF 1154, SF 1250, SF 1265.

[0135] Among the organomodified silicones, mention may be made of polyorganosiloxanes comprising:

[0136] - polyethyleneoxy and / or polypropyleneoxy groups comprising possibly C6-C24 alkyl groups such as the products called dimethicone copolyol marketed by the company DOW CORNING under the name DC 1248 or the oils SILWET® L 722, L 7500, L 77, L 711 from the company UNION CARBIDE and the alkyl (Ci2)-methicone copolyol marketed by the company DOW CORNING under the name Q2 5200;

[0137] - substituted or unsubstituted amino groups such as the commercialized products under the name GP 4 Silicone Fluid and GP 7100 by the company GENESEE or the products marketed under the names Q2 8220 and DOW CORNING 929 or 939 by the company DOW CORNING. The substituted amino groups are in particular C1-C4 aminoalkyl groups;

[0138] - alkoxylated groups, such as the product marketed under the name "SILICONE COPOLYMER F-755" by SWS SILICONES and ABIL WAX® 2428, 2434 and 2440 by GOLDSCHMIDT.

[0139] The silicones are preferably chosen from polydimethylsiloxanes (dimethicone), polydimethylsiloxanes with dimethyl silanol end groups (dimethiconol); phenyl silicones such as phenyl trimethicones, phenylmethicone dimethicones, phenyl trimethylsiloxy diphenyl siloxanes, diphenyl dimethicones, diphenyl methyldiphenyl trisiloxanes, preferably from polydimethylsiloxanes (dimethicone), polydimethylsiloxanes with dimethyl silanol end groups (dimethiconol) and mixtures thereof.

[0140] Preferably, the fatty substance(s) other than the C6-C14 branched alkanes are chosen from non-silicone organic liquid fatty substances and silicones and their mixtures.

[0141] Preferably, the fatty substance(s) other than the C6-C14 branched alkanes are chosen from liquid fatty esters, silicones, and mixtures thereof, preferentially from esters of aromatic acids and C8-C18 fatty alcohols, silicones with dimethyl silanol (dimethiconol) terminal groups, and mixtures thereof.

[0142] The composition according to the invention may comprise the fatty substance(s) other than the C6-C14 branched alkanes in a total content ranging from 0.1 to 15% by weight, preferably from 0.5 to 10% by weight, preferentially from 1% to 5% by weight, relative to the total weight of the composition.

[0143] The composition according to the invention may comprise the organic liquid fatty substance(s) and silicones other than the C6-C14 branched alkanes in a total content ranging from 0.1 to 15% by weight, preferably from 0.5 to 10% by weight, preferentially from 1% to 5% by weight, relative to the total weight of the composition.

[0144] The composition may also comprise one or more C2-C4 monoalcohols.

[0145] As C2 C4 monoalcohol(s) which may be used in the aerosol device of the invention, mention may in particular be made of ethanol or isopropanol, or better still ethanol.

[0146] When present, the C2-C4 monoalcohol(s) is or are preferably present in an amount of less than 5% by weight, better still less than 2% by weight relative to the total weight of the composition.

[0147] Preferably the composition does not comprise C2-C4 monoalcohols.

[0148] The composition according to the invention may contain one or more additional organic solvents such as polyols such as, for example, 1,2-propylene glycol, 1,3-propanediol, 1,3-butylene glycol, hexylene glycol, diethylene glycol, dipropylene glycol, 2-ethoxyethanol, triethylene glycol monomethyl ether and sorbitol. Propylene glycol and glycerin will be used more particularly.

[0149] When present, the organic solvent(s) is or are preferably present in an amount of less than 5% by weight, relative to the total weight of the composition, in particular in a total content ranging from 0.01 to 5% by weight, preferably from 0.1 to 3% by weight, relative to the total weight of the composition.

[0150] .

[0151] The composition may also contain water.

[0152] Preferably, the composition according to the invention contains less than 5% by weight of water relative to the total weight of the composition, preferably less than 1% by weight. Even more preferably, it does not contain added water. The composition is then said to be anhydrous.

[0153] The compositions defined in the invention may further contain one or more additives chosen from anionic, cationic, non-ionic amphoteric or zwitterionic fixing and / or conditioning polymers, perfumes, colorants, protective UV filters, acids, bases, pearlescent agents, glitter, absorbent and / or styling powders and mixtures thereof.

[0154] These additives may be present in the composition according to the invention in an amount ranging from 0 to 20% by weight relative to the total weight of the composition.

[0155] A person skilled in the art will take care to choose these possible additives and their quantities so that they do not harm the properties of the compositions of the present invention.

[0156] The present invention also relates to a process for conditioning keratin fibers, in particular human keratin fibers such as hair, comprising at least one step of applying to said fibers a composition as described above.

[0157] Preferably, the composition according to the invention is applied to dry or damp hair and preferably to damp hair.

[0158] This or these steps of applying the composition according to the invention may optionally be preceded by at least one step of washing said fibers using a shampoo.

[0159] Furthermore, this or these steps of applying the composition according to the invention may optionally be followed by a laying step, for example a laying time of 5s to 15 minutes; in particular 15s to 5 minutes; then followed by a rinsing step, or not, for example with water; and / or a drying step.

[0160] Preferably, the keratin fibers are not rinsed after the step(s) of applying the composition according to the invention. By "are not rinsed", it is meant that no step of rinsing the keratin fibers is carried out within a period of less than 30 minutes, preferably 20 minutes, after the step of applying the composition according to the invention.

[0161] Preferably, the invention is a method implementing the device comprising a composition as described above to reduce the drying time of wet hair. Aerosol device

[0162] The compositions in accordance with the invention are packaged in an aerosol device comprising a container, also called a reservoir, and a particular distribution means.

[0163] The container is pressurized and contains the composition to be delivered. The container containing the pressurized composition may be opaque or transparent. It may be made of glass, polymeric material or metal, optionally covered with a layer of protective varnish.

[0164] The container is equipped at its upper end with a valve ensuring the sealing of the system.

[0165] A dispensing means is fitted to this valve, which the user can press to cause the product to come out. This dispensing means is also called a diffuser.

[0166] As indicated previously, the dispensing means according to the invention comprises a body open at its two opposite axial ends and a cooperating part open at its two opposite axial ends, at least partially defining at least one dispensing orifice.

[0167] In particular, the dispensing orifice is preferably defined between the body and the cooperating part but may, alternatively, be defined entirely by the cooperating part.

[0168] Thanks to the device of the invention, a passage is provided through the dispensing means and more particularly through the body and the cooperating part, allowing air circulation to be established through the dispensing means when the product to be dispensed is emitted, which can prove advantageous when the product is emitted in the form of a spray, by allowing a current of air to be created through the dispensing means to accompany the flow of the spray.

[0169] Furthermore, the passage through the dispensing means may be made with sufficient dimensions to allow, if desired, the introduction of the finger or a lock of hair into this passage. This may facilitate the application of a product to the finger or lock of hair.

[0170] The invention may also make it possible, if desired, to facilitate the production of a dispensing orifice of annular section between the cooperating part and the body, allowing the formation of a hollow spray. As a variant, several dispensing orifices are formed between the body and the cooperating part, for example for the purpose of dispensing the product in the form of several sprays or jets. The number of dispensing orifices may in particular be between 2 and 80, inclusive, preferably between 5 and 60, better still between 5 and 20. It may for example be equal to 10. The dispensing orifices for example each have a cross-section greater than or equal to 0.0025 mm2, better still 0.006 mm2 and are preferably spaced apart from each other (measured along a straight line between the barycenters of the orifices) by a distance of more than 1 mm.

[0171] In another variant, several distribution orifices are formed entirely in the cooperating part. The orifices can be constructed so that the jet leaving each orifice is swirling, in particular thanks to at least two swirl channels oriented tangentially around the axis of the orifice. The cooperating part can have, in axial half-section, a U shape. The body can have two concentric mounting skirts between which the cooperating part is fixed. The body can comprise a crown on which the cooperating part engages, the crown being able to carry one or more reliefs defining with the cooperating part supply channels, in particular swirl channels, towards the distribution orifice.

[0172] The body may define a housing in which the cooperating part is received, which is then referred to as a core.

[0173] The dispensing orifice(s) may be open at rest. By "at rest" is meant before the cooperating part is exposed to the pressure of the product to be dispensed. Thus, in this case, the dispensing orifice(s) are already formed and open when the product is sent into the dispensing means to be dispensed. Alternatively, the dispensing orifice is formed at the time of dispensing the product, for example due to the elasticity of at least a portion of the body or the cooperating part, which deforms under the pressure of the product at the time of distribution.

[0174] Thanks to the invention, in the case of spraying, the spray can be emitted with a relatively high flow rate, if desired, while having a dispensing means of relatively simple construction and reliable operation. In particular, the dispensing orifice can be made with well-defined dimensions. In addition, the dispensing means can have an attractive aesthetic for the consumer.

[0175] The body may have a first surface flaring outwards, respectively converging outwards, and the cooperating part may have a second surface, opposite the first surface, diverging outwards, respectively converging outwards. The first surface may be conical. The second surface may be conical, of the same angle as the first surface or of a higher or lower angle.

[0176] A different angle resulting in a narrowing of the space can lead to an acceleration of the jet before its exit, which can be interesting in the context of a spray.

[0177] The dispensing orifice may be unique or not and may have an annular shape or not. The dispensing orifice may have, in the circumferential direction, a constant width. The dispensing orifice(s) may be defined between two concentric surfaces of revolution, for example cylindrical surfaces of revolution.

[0178] The dispensing orifice(s) may be axially symmetrical, preferably rotationally symmetrical, around the dispensing axis in particular. The dispensing axis is defined by the general direction in which the product is dispensed by the dispensing means.

[0179] When the dispensing means comprises several dispensing orifices, they preferably have the following characteristics.

[0180] Their cross section is advantageously a disc.

[0181] They are preferably cylindrical or approximately cylindrical in shape.

[0182] The depth of each orifice is advantageously between 0.5 and 2 mm. A long length makes it possible to create an individual spray with a reduced cone to create a tubular effect with a significant number of orifices. A reduced length allows a very wide individual spray and further widens the application surface of the multi-orifice diffuser.

[0183] The sum of the cross-sections of the ring orifices is preferably chosen to be close to the surface area of the nozzle orifice.

[0184] With the same valve, different types of spraying can be obtained by choosing the number and section of the orifices. For example, a distribution means according to the invention equipped with 80 orifices of 0.005 mm2 can be used to obtain a soft mist or a distribution means according to the invention provided with 10 orifices of 0.1 mm2 to obtain a powerful spray.

[0185] The orifices can be distributed in different ways. They can be equidistant on the periphery of the ring, equidistant from each other on a portion of the ring, distributed in equidistant groups composed of several equidistant orifices.

[0186] It is possible to create a ring completely supporting the distribution orifices which can be cylindrical. In this configuration, small swirl orifices can be made with a different design of the internal and external rings to allow the creation of a ring which will have the mission of creating the “centerpost” function at the rear.

[0187] The cooperating part is preferably attached, which facilitates its manufacture and that of the body. Alternatively, the cooperating part is molded in one piece with the body, in particular in the case of dispensing a foam, the dispensing orifice then being able to have a larger section than in the case of spraying a spray.

[0188] The space provided between the body and the cooperating part is supplied by at least one supply channel whose section is preferably greater than that of the dispensing orifice, which facilitates the filling of this space before the product exits through the dispensing orifice.

[0189] A product distribution chamber can advantageously be provided, between the cooperating part and the body, upstream of the dispensing orifice. This can facilitate the emission of a homogeneous spray, in particular.

[0190] The product supply channel may open into this chamber, which preferably has an annular shape. Its width, which corresponds to the interval between the cooperating part and the body, is preferably greater than the maximum width of the passage through which the distribution chamber communicates with the dispensing orifice.

[0191] At least one of the body and the cooperating part, preferably the body, may have at least one relief for centering the cooperating part relative to the body, and preferably at least ten, better still at least twenty, even better still at least forty. These reliefs may come to the edge of the part in which they are made so as to generate a multitude of orifices through which the jets of product emerge, the centering reliefs being in particular oriented parallel to the dispensing axis or obliquely in the same circumferential direction around the axis, possibly also defining between them narrowings in section leading to an acceleration of the jet of product. This or these reliefs are preferably located set back from the dispensing orifice when it is sought to generate a spray in the form of a single jet. The reliefs may be made on the body, being for example in the form of axial ribs equally distributed over the entire surface of the body opposite the cooperating part.

[0192] The centering reliefs may possibly ensure by themselves the maintenance of the cooperating part on the body. Alternatively, the cooperating part is fixed on the body elsewhere than at the level of the centering reliefs, the centering reliefs in this case being able or not to have a function of maintaining the cooperating part on the body.

[0193] Preferably, the cooperating part is fixed relative to the body. Alternatively, the cooperating part is fixed in an adjustable manner relative to the body, for example to allow the user to adjust the width of the dispensing orifice or to close it when not in use, for example by screwing it a quarter turn, this screwing being accompanied by an axial displacement of the cooperating part relative to the body.

[0194] The cooperating portion may be flush with the front end of the body so as to generate a spray with an axis substantially parallel to the axis of the cooperating portion.

[0195] The cooperating part may protrude axially from the front end of the body by a value of between 0.01 and 1 mm, better between 0.01 and 0.5 mm. The spray may then be divergent towards the axis of the cooperating part.

[0196] The cooperating part may be axially set back from the front end of the body by a value of between 0.01 and 1 mm, better between 0.01 and 0.5 mm. The spray may then be convergent towards the axis of the cooperating part.

[0197] The invention makes it possible to easily produce, if desired, a dispensing orifice with a circular internal contour. The internal diameter of the passage formed through the dispensing means is, for example, greater than or equal to 10 mm, better still 15 mm, 20 or 30 mm. When the passage is not of circular section, the “internal diameter” designates that of the largest circle inscribed in this passage.

[0198] The dispensing means may comprise at least two housings and two cooperating parts arranged in the housings and each defining with the body, at rest, a dispensing orifice according to the invention. The dispensing axes may then be parallel or not, intersecting or not, for example converging towards each other.

[0199] The dispensing orifice may be axial, in half-axial section, convergent or divergent relative to the spraying direction.

[0200] The invention also relates to an aerosol device comprising:

[0201] - a container containing:

[0202] - a composition comprising an amount greater than or equal to 30% by weight per relative to the total weight of the composition of one or more branched C6-C14 alkanes, one or more fatty substances other than the branched C6-C14 alkanes and one or more propellants,

[0203] - a means for distributing said composition comprising:

[0204] a body,

[0205] a cooperating part, in particular a core, defining with the body, at rest, at least one distribution orifice of annular section.

[0206] The invention also relates to an aerosol device comprising:

[0207] - a container comprising a valve or pump stem, containing:

[0208] a composition comprising an amount greater than or equal to 30% by weight relative to the total weight of the composition of one or more branched C6-C14 alkanes, one or more fatty substances other than the branched C6-C14 alkanes and one or more propellants,

[0209] - a means for distributing said composition comprising:

[0210] - a body provided with a connection tip to the valve or pump stem,

[0211] - a part attached to the body, at least partially defining an orifice distribution of section in particular annular at rest or several distribution orifices distributed around a distribution axis (Z),

[0212] the distribution means being non-crossing along the distribution axis (Z),

[0213] the body being closed along the distribution axis (Z) and said part being in particular of annular shape, or

[0214] the body having a through opening along the distribution axis (Z) and said part closing this opening.

[0215] The invention may be better understood by reading the detailed description which follows, non-limiting examples of its implementation, and by examining the attached drawing, in which:

[0216] [Fig.l] represents, schematically in perspective, an example of a distribution means produced in accordance with the invention, before mounting the cooperating part on the body of the distribution means,

[0217] [Fig.2] represents the distribution means after mounting of the cooperating part in the body,

[0218] [Fig.3] is a view similar to [Fig.l] with partial section,

[0219] Figures 4A to 4F illustrate various arrangements, among others, of the cooperating portion and the body,

[0220] [Fig.5] illustrates the possibility of producing the distribution means with two distribution orifices according to the invention,

[0221] [Fig.6] shows in front view a distribution means with concentric distribution orifices,

[0222] [Fig.7] is an axial section of an alternative embodiment of the cooperating part,

[0223] Figures 8A and 8B are different examples of configurations of the part cooperating [Fig.7] in partial front view,

[0224] [Fig.9] is a partial axial section of an alternative embodiment of the distribution orifice,

[0225] Figures 10A and 10B are front views along X of different configuration examples according to [Fig.9],

[0226] [Fig.l 1] is a view similar to [Fig.2] of an alternative embodiment of the distribution means,

[0227] Figures 12A to 12C illustrate different examples of arrangements of the reliefs on the body,

[0228] Figures 13A to 13C illustrate different examples of configurations of the cooperating part relative to the body,

[0229] [Fig.14] is a partial axial section of an alternative embodiment of the distribution orifice,

[0230] [Fig. 15] is a section along XV of [Fig. 14],

[0231] [Fig.16] is an example of embodiment of the body according to [Fig.14], and

[0232] [Fig. 17] is a cutaway perspective view of an example of a dispensing means according to the configuration of [Fig. 14].

[0233] In the drawing, the actual respective proportions of the various constituent elements have not always been respected, for the sake of clarity.

[0234] The dispensing means 1 shown in Figures 1 to 3 is intended to equip a container, not shown, provided with a hollow valve or pump stem, by which the product to be dispensed contained in the container is conveyed to the dispensing means 1.

[0235] The container may in particular be a pressurized container of the aerosol can type, containing a propellant gas such as, for example, compressed air or a liquefied gas.

[0236] The container may be equipped with a valve and the valve may be opened, for example, by pushing in the hollow rod or, alternatively, by tilting it. When the container is equipped with a pump, the pump may be actuated, for example, by pushing in the hollow rod along its longitudinal axis.

[0237] The distribution means 1 comprises a body 3, which can be produced monolithically by molding a single piece or comprise several elements produced separately and assembled.

[0238] The dispensing means 1 may comprise, as can be seen in [Fig.2], a housing 6 intended to cooperate with the hollow rod to allow the product delivered by the latter to reach a supply channel 7 which opens into a housing 8 of the body 3. The housing 6 has a dimension adapted to the external diameter of the rod, so as to obtain a sealed mounting of the rod in the housing 6, so that the product delivered by the rod passes entirely into the supply channel 7. The latter is for example coaxial with the rod of the container but could be oriented differently and comprise for example several differently oriented portions.

[0239] A cooperating part 10, called core in the following when it is internal to the body, is fixed in the housing 8 and defines for example with the body 3 a distribution orifice 12 of annular section, as illustrated.

[0240] By “annular section”, it is necessary to understand in the sense of the present invention any section following a closed contour, whether this contour is circular, elliptical, polygonal or other.

[0241] The core 10 is axially traversed by an opening 90 whose internal diameter D may be relatively large, for example greater than or equal to 10 mm, better 15, 20 or 30 mm.

[0242] The opening 90 contributes to giving the dispensing means a particularly aesthetic appearance. In addition, the opening 90 may allow air circulation through the dispensing means under the driving effect of a spray emitted by the dispensing orifice 12. This may contribute to increasing the range of the spray and may increase the freshness effect provided by the spray, if applicable.

[0243] The opening 90 can also allow a finger or a lock of hair to be introduced through the dispensing means, which can allow a product to be applied in a single gesture over the entire circumference of the element introduced through the dispensing means. This can be an advantage for applying, for example, an antiseptic or care product to a finger or treating a lock of hair.

[0244] The dispensing axis Z may be perpendicular to the longitudinal axis X of the container on which the dispensing means is mounted, as illustrated.

[0245] The dispensing means 1 comprises a base 92 which defines a surface 4 on which the user can press to cause dispensing.

[0246] The base 92 can be extended lower by a covering skirt 93, which covers the upper part of the container.

[0247] The housing 8 which receives the core 10 is defined by a crown 94 of axis Z, the lower side of which joins the base 92. The supply channel 7 passes through the base 92 and ends in the housing 8 at a distance from the axial ends, along the axis Z, of the crown 94, being preferably closer to the rear end 94a than to the front end 94b, as can be seen in [Fig.2].

[0248] The body 3 may have, as illustrated, a shoulder 95 close to the rear end 94a, against which the core 10 may, if necessary, come into axial abutment at the end of its assembly.

[0249] The core 10 and the housing 8 may have annular surfaces 96 and 97, in sealed contact, to close the space formed between the core 10 and the body 3 behind the supply channel 7.

[0250] Preferably, the circumferential width 1 of the dispensing orifice 12, around the spraying direction Z, is constant. This does not depart from the scope of the present invention when this width 1 varies, for example so as to take into account the possibly non-uniform pressure drop experienced by the flow of the product upstream of the dispensing orifice 12. This non-uniform pressure drop results for example from the geometry of the space between the core and the body, in particular the presence of angles or crossings. By varying the width 1, it is possible to ensure that the product can exit more easily where this pressure drop is greatest, if the aim is to have the most homogeneous spray possible.

[0251] The width 1 of the dispensing orifice is for example between 0.01 and 2 mm.

[0252] The core 10 can be fixed in various ways to the body 3. In the example illustrated in FIGS. 1 to 3, the core 10 is held by friction on the body 3.

[0253] In the illustrated example, the core 10 is produced separately from the body 3 and attached to it. The core 10 may be produced from the same thermoplastic material as the body 3 or, alternatively, from a different thermoplastic material. A metallic material may also be used to produce the core 10.

[0254] Axial ribs 38 are formed on the inner circumference of the housing 8, as visible in Figures 1 and 3 in particular, to center the core 10 in the housing 8. The centering reliefs 38 may be, as illustrated in Figures 12A to 12C, parallel or oblique in the circumferential direction to the Z axis, or curved. Each relief 38 may have, when observed in a top view, a polygonal outline, in particular rectangular or trapezoidal, or in a flared shape in the direction of the dispensing edge. Two centering reliefs 38 may define between them a narrowing 39 near the dispensing orifice so as to accelerate the fluid by venturi effect. The number of centering reliefs 38 is preferably at least 10, better 20, even better 40.

[0255] The space 22 formed between the core 10 and the body 3 can have the configuration illustrated schematically in [Fig.4A], and open onto the distribution orifice 12 via an annular terminal portion 22c, formed between two surfaces 3a and 10a, cylindrical in revolution around the axis Z.

[0256] The end wall 22c connects to a proximal portion 22a by an inclined intermediate portion 22b, formed between facing surfaces 3b and 10b.

[0257] The centering reliefs 38 extend into the proximal portion 22a. The latter is supplied with product by the distribution chamber 22d.

[0258] When the user actuates the dispensing means 1, the product reaches the space 22 between the core 10 and the body 3 via the supply channel 7 and can be delivered in the form of a spray via the dispensing orifice 12.

[0259] The spray is in the example of figures 1 to 3 angularly continuous around the distribution axis, due to the absence of contact between the core 10 and the body 3 at the distribution orifice 12. Indeed, the support zone(s) between the core 10 and the body 3 are located for example, as illustrated, set back from the dispensing orifice 12 by a distance (measured along the dispensing axis Z) of at least 0.5 mm.

[0260] The spray can be angularly discontinuous around the distribution axis, due to the presence, in particular at the level of the reliefs 38, of contact between the core 10 and the body 3 at the level of the product outlet.

[0261] Preferably, the cross-section of the supply channel 7 is greater than the cross-section of the dispensing orifice 12, so as to allow rapid filling with the product of the space located upstream of the dispensing orifice, which can contribute to the formation of a homogeneous spray from the start of spraying.

[0262] The distribution chamber 22d arranged upstream of the space 22a in which the centering reliefs 38 extend receives the product delivered by the supply channel 7.

[0263] The width co of the distribution chamber 22d is greater than that 1 of the terminal portion 22c which opens onto the distribution orifice 12.

[0264] The distribution chamber 22d improves the distribution of the product before it reaches the narrower portions of the passage through which the product is discharged.

[0265] Figures 4B and 4C illustrate various other examples of possible configurations for the space 22 provided between the core 10 and the body 3 for the circulation of the product to the dispensing orifice.

[0266] In the example of [Fig.4B], the space 22 formed between the core and the body comprises a proximal portion 22a in which the reliefs 38 for centering the core 10 relative to the body 3 extend, extended by an intermediate portion 22b which makes an angle with the spraying direction Z, for example a re-entrant angle. This intermediate portion 22b can be connected to a terminal portion 22c, which opens onto the distribution orifice 12, this terminal portion being for example, as illustrated, defined between two surfaces 3a and 10a, cylindrical in revolution, parallel to the distribution direction Z. The variant of [Fig.4B] does not comprise a distribution chamber.

[0267] In the variant of [Fig.4C], the terminal portion 22c communicates directly with that 22a in which the centering reliefs 38 extend. The terminal portion 22c makes for example an angle with the distribution direction Z. Thus, in axial half-section, the axis ZI of the orifice 12 is for example convergent, as illustrated.

[0268] In the variant of [Fig.4D], the cooperating part 10 is external to the body 3. The cooperating part 10 is fixed to the body 3 so as to form with it the distribution chamber 22d, opposite the supply channel 7. The portions 22a, 22b and 22c make it possible to convey the product to the dispensing orifice 12.

[0269] The supply channel 7 opens for example into the distribution chamber 22d via a portion oriented parallel to the distribution axis Z.

[0270] Centering reliefs 38 are produced for example on the body 3. The cooperating part 10 can be produced, as illustrated, with an annular lip 39 which partially delimits the distribution chamber 22d and makes it possible to form a narrowing 47 of section between the chamber 22d and the portion 22a.

[0271] [Fig.4E] illustrates the possibility of having an angle between the axis Z2, in axial half-section, of the orifice 12 and the distribution axis, which is divergent.

[0272] In the variant of [Fig.4F], the possibility of having no angle between the distribution axis and the Z axis of the cooperating part 10 has been illustrated. The supply channel 7 opens for example into a distribution chamber 22d. The product is conveyed to the distribution orifice 12 via channels 22 comprising the reliefs 38. The reliefs 38 extend to the edge of the distribution orifice 12 and define a plurality of orifices making it possible to deliver the product in the form of a plurality of jets.

[0273] The invention is not limited to a dispensing head comprising a single dispensing orifice 12 produced in accordance with the invention.

[0274] As an example, [Fig.5] illustrates a dispensing head 1 which comprises two dispensing orifices 12.

[0275] In the presence of several distribution orifices, these can be distributed in multiple ways on the distribution means. For example, the spray axes are parallel, or form an angle, for example being intersecting.

[0276] Figures 7, 8A and 8B illustrate the possibility for the dispensing means to have several dispensing orifices 12 formed entirely in the core 10 in order to dispense the product in the form of several jets for example. The dispensing orifices 12 can have numerous shapes when observed along their transverse axis, in particular circular or triangular, as illustrated in Figures 8A and 8B. The dispensing orifices 12 can be drilled in the core 10, for example by laser drilling.

[0277] The core 10 may have a U-shaped axial half-section, as illustrated in [Fig. 7]. The body 3 may comprise two concentric mounting skirts 41 which define between them a mounting space for the core 10, and comprise in its center a crown 43 serving as a support for the cooperating part 10. The skirts 41 define with the crown 43 two annular channels 45 in which the legs of the U are placed. The crown 43 may comprise, for each orifice 12, two channels 22 for supplying the liquid to this orifice 12.

[0278] During assembly, as illustrated in Figures 14 and 17, the core 10 can be pressed against the pad 43, the end face 48 of the crown 43 being in contact with the internal face 11 of the core 10. The legs of the U of the core 10 are fixed in the channels 45, the internal face 46 of the mounting skirts 41 being in contact with the face 13 of the core 10. The internal faces 14 of the legs of the U and the lateral surfaces 49 of the crown 43 can define between them the supply channels 22 for the liquid towards the distribution orifice 12. The crown 43 can have, in particular in the form of impressions, on its external face 48, supply channels 23 allowing the passage of the liquid from the supply channels 22 to the distribution orifice 12.

[0279] The supply channels 22 open upstream of the distribution orifices 12, onto the supply channels 23 which lead to the distribution orifice 12. The supply channels 23 generate, by virtue of their orientation relative to the distribution orifice, a swirling flow at the outlet of the distribution orifice 12. This configuration is more particularly useful in the case of a carrier gas which is not liquefied.

[0280] In a variant, the supply channels 22 can be produced in the form of impressions on the lateral surface 49 of the body and / or on the internal faces 14 of the core 10.

[0281] In a variant not shown, the core 10 has, in particular in the form of impressions on its internal face 11, supply channels 23, the end face 48 of the crown 43 possibly being smooth.

[0282] In a variant, the crown 43 is not circumferentially continuous and defines pads. The pads are placed upstream of the distribution orifices 12 and may have, upstream of the distribution orifices 12, the supply channels 22 and 23 as described above.

[0283] In the variant of Figures 4F, 9 and 10, the dispensing orifices 12 are formed between the core 10 and the body 3, being for example distributed all around the spraying axis Z. The core 10 or the body 3 may have centering reliefs 38 which circumferentially delimit the dispensing orifices 12. The centering reliefs 38 may, as illustrated in Figures 12A to 12C, come up to the edge of the core 10 over the entire periphery and define between them the dispensing orifices 12. The number of dispensing orifices 12 is preferably at least 10, better still 20, even better still 40. The cross-section of a dispensing orifice 12 is for example greater than 0.003 mm2. The dispensing orifices 12 are preferably spaced apart by a gap of at least 1 mm, which is the same as the pitch p between the centering reliefs.As illustrated in Figures 10A and 10B, the distribution orifices 12 may be of polygonal cross-section, in particular triangular.

[0284] The core 10 may extend, as illustrated in [Fig. 13A], back from the body by a value of between 0.01 and 1 mm, better between 0.01 and 0.5 mm. The body 3 projects from the dispensing orifice and may generate a convergent spray.

[0285] The core 10 can be, as illustrated in [Fig.l3B], flush with the body 3. The spray can then be straight.

[0286] The core 10 can extend, as illustrated in [Fig. 13C], forward relative to the body 3 by a value between 0 and 1 mm, better between 0 and 0.5 mm. The spray can then be divergent.

[0287] It is not outside the scope of the present invention to provide an additional dispensing orifice, for example by providing a second core 50 inside the core 10 which defines with the first core 10 a second dispensing orifice 51, coaxial with the first, as illustrated in [Fig. 6]. A passage 90 remains provided through the dispensing means.

[0288] The dispensing orifice may be supplied with more than one product.

[0289] The dispensing means can be supplied with two products which are dispensed through separate dispensing orifices.

[0290] The Z axis may be non-perpendicular to the axis of the stem of the container on which the dispensing means is mounted, as illustrated in [Fig.l 1]. In this example, the Z axis is oriented upwards when the container is vertical with the dispensing means at the top.

[0291] The supply channel 7 can be oriented substantially parallel to the distribution axis Z, at least for the portion which opens opposite the cooperating part 10. The latter can be produced with an annular lip 39 which defines a narrowing of section 47.

[0292] The configuration may be similar to that of [Fig.4D] except that the cooperating part 10 is external to the body 3 in the example of [Fig.4D] and internal in the example of [Fig.1 1].

[0293] The dispensing means may be arranged to allow the mounting of a protective cover and include, where appropriate, an on / off system making it possible to prohibit actuation of the device for a certain position of the dispensing means relative to the container or for a certain position of a locking element of the dispensing means relative to the latter.

[0294] In variants not illustrated, the dispensing orifice is formed between a body and a cooperating part, the body being radially inner relative to the cooperating part, the product supply channel passing through the body. All the characteristics described with reference to the figures can be found in such variants where the body is radially inner relative to the cooperating part.

[0295] The following example serves to illustrate the invention. EXAMPLE

[0296] In the following examples, all quantities are indicated as a percentage by weight of product in active ingredients relative to the total weight of the composition. Example 1

[0297] The following composition was prepared from the compounds indicated in the table below.

[0298] [Tables 1] A C12-15 ALKYL BENZOATE 1,7 DIMETHICONOL at 15% MA in isododecane 1,3 (0.195 of dimeticonol and 1.105 of isodo decane) ISODODECANE 89.2 Perfume 0.7

[0299] Composition A was introduced into 2 devices DI and D2:

[0300] The aerosol container comprises 50% by weight of composition A and 50% by weight of isobutane.

[0301] [Tables2] DI comparative D2 invention Pump bottle APTAR PZ2 DL 190pl pump with DU3020 nozzle Valve: COSTER GI -internal nozzle- 0.32 mm / RI -Internal restriction- 0.40 mm Dispensing means comprising 10 orifices of 0.05 mm unit section distributed over the annular surface

[0302] Composition A is applied to dry hair via these 2 devices on strands of natural hair of 2.7g, at a rate of 0.2g per strand.

[0303] The quantity of composition A deposited on each of the wicks is identical with the two devices. Application quality

[0304] The application quality was evaluated by 5 experts, on dry hair, during a blind test. Each of the 5 experts rated each of the strands, awarding “2 points” to the best performing side, “0 points” to the least performing side and “1 point” in the event of a tie.

[0305] To assess the quality of the application, each expert observes the strand just after applying the composition, assessing in particular whether the distribution and size of the droplets present on the fibers is homogeneous.

[0306] [Tables3] Application quality DI Comparison D2 invention Expert 1 0 2 Expert 2 0 2 Expert 3 0 2 Expert 4 0 2 Expert 5 0 2 Average 0 2

[0307] 100% of the experts (5 out of 5) judged that the D2 device according to the invention allowed to obtain an extremely fine and light deposit, distributed evenly over the strands of hair.

[0308] Natural touch, no transfer - Natural appearance, no “wet effect” visual

[0309] The touch and visual appearance were evaluated by 5 experts, on dry hair, during a blind test. Each of the 5 experts rated each of the strands, awarding "2 points" to the best-performing side, "0 points" to the worst-performing side and "1 point" in the event of a tie.

[0310] To assess the feel, the expert grasps the wick between the thumb and index finger, moves down from the top of the wick towards the tips and at the same time makes a slight oscillating movement with the thumb to feel for the presence of any deposit.

[0311] The evaluation of unnatural touch is also accompanied by the observation / feeling of a transfer of product onto the fingers.

[0312] Below are the scores awarded by the experts:

[0313] [Tables4] TOUCH without TRANSFER VISUAL APPEARANCE non-GREASY, without wet effect DI Comparati f D2 invention DI Comparati f D2 invention Expert 1 0 2 0 2 Expert 2 0 2 0 2 Expert 3 0 2 0 2 Expert 4 0 2 0 2 Expert 5 0 2 0 2 Average 0 2 0 2

[0314] 100% of the experts (5 out of 5) judged that the D2 device according to the invention allowed to obtain a more natural feel and visual appearance, i.e. no transfer, non-greasy and wet appearance, than the comparative device Dl. Example 2

[0315] The following compositions were prepared from the compounds indicated in the table below.

[0316] [Tables5] A invention B comparison C12-15 ALKYL BENZOATE 0.85 0.85 FRAGRANCE / PARFUM 0.35 0.35 ISODODECANE 48.17 28.54 ISOHEXADECANE - 19.63 DIMETHICONOL 0.63 0.63 ISOBUTANE 50 50

[0317] Each of the compositions was introduced into an aerosol device equipped with a diffuser according to the invention comprising a COSTER valve with an internal nozzle of 0.32 mm, an internal restriction of 0.40 mm and a distribution means according to the invention comprising 10 orifices of 0.05 mm unitary section distributed over the annular surface.

[0318] Compositions A and B are applied to 2.7g strands of natural hair, at a rate of 0.2g per strand.

[0319] The application is done as a finish on dry hair.

[0320] The quantity of composition A deposited on each of the wicks is identical with the two devices.

[0321] Natural touch, no transfer - Natural appearance, no “wet effect” visual

[0322] The touch and visual were evaluated by 5 experts, on dry hair, during a test blindly. Each of the 5 experts scored each of the strands, awarding "2 points" to the best-performing side, "0 points" to the worst-performing side, and "1 point" in the event of a tie.

[0323] To assess the feel, the expert grasps the wick between the thumb and index finger, moves down from the top of the wick towards the tips and at the same time makes a slight oscillating movement with the thumb to feel for the presence of any deposit.

[0324] The evaluation of unnatural touch is also accompanied by the observation / sensation of a transfer of product onto the fingers.

[0325] Below are the scores awarded by the experts:

[0326] [Tableauxô] TOUCH VISUAL ASPECT B Comparison A Invention B Comparison A Invention Expert 1 0 2 0 2 Expert 2 0 2 0 2 Expert 3 0 2 0 2 Expert 4 0 2 0 2 Expert 5 0 2 0 2 Average 0 2 0 2

[0327] 100% of the experts (5 out of 5) judged that composition A according to the invention made it possible to obtain a more natural feel and visual effect without transfer, non-greasy and without wet effect than composition B comprising less than 30% by weight of branched C6-C14 alkanes. Example 3

[0328] The following composition was prepared from the compounds indicated in the table below.

[0329] [Tables?] A invention C12-15 ALKYL BENZOATE 0.85 FRAGRANCE / PARFUM 0.35 ISODODECANE 48.17 DIMETHICONOL 0.63 ISOBUTANE 50

[0330] The composition was introduced into an aerosol device equipped with a diffuser according to the invention comprising a COSTER valve with an internal nozzle of 0.32 mm, an internal restriction of 0.40 mm and a distribution means according to the invention comprising 10 orifices of 0.05 mm unitary section distributed over the annular surface.

[0331] The drying time of 10 strands moistened with water then treated with the composition according to the invention was compared to 10 strands moistened with untreated water.

[0332] The wicks were weighed before and after humidification.

[0333] The wicks were dried with a dryer positioned 10 cm from each of the strands. Drying was carried out in 10-second periods until the weight of each strand no longer varied.

[0334] [Tables8] A invention Control Drying time in seconds 74 46

[0335] The method according to the invention made it possible to reduce the drying time by more than 70% compared to an untreated strand.

Claims

Claims

1. Aerosol device comprising: - a container containing a composition comprising a quantity greater than or equal to 30% by weight relative to the total weight of the composition of isododecane, one or more fatty substances other than C6-C14 branched alkanes and one or more propellants, - a means for dispensing said composition comprising: - a body (3) open at its two opposite axial ends, - a cooperating part (10) open at its two opposite axial ends, defining at least partially at least one dispensing orifice (12), device in which the composition does not comprise C2-C4 monoalcohols.

2. Device according to any one of the preceding claims, characterized in that the branched C6-C14 alkane(s) is or are present in an amount ranging from 30 to 70% by weight, preferably from 40 to 60% by weight, better still from 45 to 55% relative to the total weight of the composition.

3. Aerosol device according to any one of the preceding claims, characterized in that the fatty substance(s) other than the C6-C14 branched alkanes are chosen from non-silicone liquid fatty substances and silicones, preferably from triglycerides of vegetable or synthetic origin, liquid fatty esters other than triglycerides, liquid fatty alcohols, liquid fatty ethers, dialkyl carbonates, silicones and mixtures thereof.

4. Aerosol device according to the preceding claim, characterized in that the fatty substance(s) other than the C6-C14 branched alkanes is or are chosen from liquid fatty esters, silicones and their mixtures.

5. Aerosol device according to any one of claims 3 to 4, characterized in that the fatty substance(s) other than the branched C6-C14 alkanes is or are chosen from esters of aromatic acids and C8-C18 fatty alcohols, polydimethylsiloxanes with dimethyl silanol (dimethiconol) terminal groups; and mixtures thereof.

6. Aerosol device according to any one of the preceding claims, characterized in that the fatty substance(s) different from the branched C6-C14 alkanes is or are present in a total amount ranging from 0.1 to 15% by weight, better still from 0.5 to 10% by weight, and even more preferably from 1 to 5% by weight relative to the total weight of the composition.

7. Aerosol device according to any one of the preceding claims, characterized in that the propellant(s) are chosen from air, nitrogen, carbon dioxide, dimethyl ether, volatile hydrocarbons, such as in particular C3-C5 alkanes, chlorinated and / or fluorinated hydrocarbons such as 1,1-difluoroethane and mixtures thereof, preferably chosen from dimethyl ether and C3-C5 alkanes and in particular n-butane, propane, isobutane and mixtures thereof, preferably isobutane.

8. Aerosol device according to any one of the preceding claims, characterized in that the propellant agent(s) is or are present in an amount ranging from 30 to 70% by weight, better still from 40 to 60% by weight, and even more preferably from 45 to 55% relative to the total weight of the composition.

9. Aerosol device according to any one of the preceding claims, characterized in that the dispensing orifice (12) is defined between the cooperating part (10) and the body (3).

10. Device according to any one of the preceding claims, characterized in that the dispensing orifice (12) is annular and, preferably, has, in the circumferential direction, a constant width (1).

11. Device according to any one of claims 9 or 10, characterized in that the dispensing orifice (12) is axially symmetrical, preferably rotationally symmetrical.

12. Device according to any one of claims 1 to 11, characterized in that the cooperating part (10) at least partially defines a plurality of dispensing orifices (12).

13. Device according to the preceding claim, characterized in that the number of distribution orifices (12) is, inclusive, between 2 and 80, preferably between 5 and 60.

14. Device according to any one of claims 12 and 13, characterized in that the distribution orifices (12) each have a cross-section greater than or equal to 0.0025 mm2.

15. A method of conditioning keratin fibers comprising the implementation of the device according to any one of the preceding claims.

16. Method according to the preceding claim, comprising a step of applying to the hair, dry or wet, a composition sprayed from an aerosol device according to any one of claims 1 to 14, to be rinsed or not, preferably without rinsing after a possible exposure time.

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