Aerosol composition comprising a silicone functionalized with at least one alkoxysilane unit and an amphoteric and/or cationic fixing polymer

Device according to the preceding claim, in which R3 and R4 form, with the nitrogen atom that bears them, a 5- to 8-membered heterocycle comprising from 1 to 3 heteroatoms.

Device according to the preceding claim, in which R3 and R4 form, with the nitrogen atom that bears them, a cyclic group, preferably morpholino, and R5 represents an ethyl group.

Device according to any one of the preceding claims, in which the polymer(s) containing a silicone unit bearing alkoxy-(aminomethyl)-silyl functional groups, preferably of formula (I), represent from 0.1% to 40% by weight, preferably from 0.5% to 30% by weight and more particularly from 1% to 10% by weight relative to the total weight of the composition, when the propellant(s) are present in the composition.

Device according to any one of the preceding claims, characterized in that the amphoteric fixing polymer(s) are chosen from copolymers containing acidic vinyl units and containing basic vinyl units, crosslinked and acylated polyamino amides, polymers containing zwitterionic units, chitosan-based polymers, modified (C1-C5)alkyl vinyl ether/maleic anhydride copolymers, polymers comprising units derived a) from at least one monomer chosen from acrylamides and methacrylamides substituted on the nitrogen atom with an alkyl group, b) from at least one acidic comonomer containing one or more reactive carboxylic groups, and c) from at least one basic comonomer, and preferably from polymers comprising units derived a) from at least one monomer chosen from acrylamides and methacrylamides substituted on the nitrogen atom with an alkyl group, b) from at least one acidic comonomer containing one or more reactive carboxylic groups, and c) from at least one basic comonomer.

Device according to any one of the preceding claims, characterized in that the cationic and/or amphoteric fixing polymer(s) are present in the composition in a content ranging from 0.5% to 20% and preferably from 1% to 10% by weight relative to the total weight of the composition, when the propellant(s) are present in the composition.

Device according to any one of the preceding claims, in which the composition comprises at least one organic solvent, preferably chosen from alcohols, alkanes, esters and silicones, and mixtures thereof, preferentially chosen from ethanol, propanol, isopropanol, glycerol, undecane, tridecane, isododecane, isopropyl myristate, ethyl adipate, ethyl acetate, linear low-molecular-weight silicones or cyclic silicones such as cyclopentasiloxane, and also mixtures thereof, and more preferably from ethanol and isopropanol, and mixtures thereof.

Device according to the preceding claim, characterized in that the organic solvent(s) represent from 10% to 99.8%, preferably from 30% to 98% by weight and better still from 35% to 95% by weight relative to the total weight of the composition, when the propellant(s) are present in the composition.

Device according to any one of the preceding claims, characterized in that the composition comprises less than 5% by weight of water, preferably less than 3% by weight of water and more preferably less than 1% by weight of water relative to the total weight of the composition, when the propellant(s) are present in the composition.

Device according to any one of the preceding claims, in which the composition comprises one or more catalysts, preferably chosen from organic or mineral basic compounds, especially ammonia or sodium hydroxide, organic or mineral acids, especially hydrochloric acid, oleic acid or lactic acid, and mixtures thereof.

Device according to any one of the preceding claims, characterized in that the propellent gas(es) are chosen from compressed 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 compressed air, dimethyl ether, 1,1-difluoroethane and C3-C5 alkanes and in particular n-butane, propane and isobutane, and mixtures thereof.

Device according to any one of the preceding claims, characterized in that, when the propellant(s) are present in the composition, the propellant(s) are present in an amount ranging from 10% to 90% by weight, even better still from 15% to 80% by weight and even more preferentially from 20% to 75% relative to the total weight of the composition.