Cosmetic composition forming a rigid coat, comprising a polymer with a non-silicone skeleton and containing reactive functional groups

An aerosol device comprising at least one propellant and a composition comprising, in a cosmetically acceptable medium, at least one polymer with a non-silicone skeleton, comprising at least two non-photo-activatable reactive chemical functional groups, which may be identical or different, wherein:

• (i) a film obtained by drying the composition at room temperature (22±2° C.) and at a relative humidity of 50%±5% has a Young's modulus ranging from 100 to 2000 MPa, measured at a thickness of 0.5 mm and at a traction of 20 mm/min;
• (ii) the at least two non-photo-activatable reactive chemical functional groups are chosen from the following monovalent and divalent groups:
• epoxy,
• anhydride,
• acid chloride,
• ethyleneimino,
• aldehyde,
• acetal and hemiacetal,
• aminal and hemiaminal,
• ketone, α-halo ketone, and α-hydroxy ketone,
• lactone and thiolactone,
• isocyanate,
• thiocyanate,
• N-hydroxysuccinimide ester,
• imide,
• imine,
• imidate,
• oxazoline, oxazolinium, oxazine, and oxazinium,
• pyridylthiol,
• thiosulphate,
• acetoalkylate corresponding to the formula:
• —OCO—A′—COCH3,
• wherein A′ is chosen from a bond, and linear and branched alkylene groups, comprising from 1 to 5 carbon atoms,
• AX, and
• ASO2X,
• wherein:
• A is a group chosen from alkylene, arylene and aralkylene groups comprising from 1 to 22 carbon atoms, which may be optionally interrupted with at least one unsaturated ring, and may be optionally comprising at least one hetero atom,
• X is a leaving group chosen from halogens, OSO3H, OSO2CH3, OSO2C2H5, OSO2Tos, N(CH3)3, OPO3R2, and CN,
• wherein Tos represents a tosylate group, and
• R is chosen from a hydrogen atom and C1 to C5 alkyl radicals;
• and
• (iii) the at least one polymer with a non-silicone skeleton, comprising at least two reactive chemical functional groups, is other than vinylbutyral/vinyl alcohol/vinyl acetate copolymer.

A process for cosmetic treatment of hair comprising applying to the hair a cosmetic composition comprising, in a cosmetically acceptable medium, at least one polymer with a non-silicone skeleton, comprising at least two non-photo-activatable reactive chemical functional groups, which may be identical or different, wherein:

• (i) a film obtained by drying the composition at room temperature (22±2° C.) and at a relative humidity of 50%±5% has a Young's modulus ranging from 100 to 2000 MPa, measured at a thickness of 0.5 mm and at a traction of 20 mm/min;
• (ii) the at least two non-photo-activatable reactive chemical functional groups are chosen from the following monovalent and divalent groups:
• epoxy,
• anhydride,
• acid chloride,
• ethyleneimino,
• aldehyde,
• acetal and hemiacetal,
• aminal and hemiaminal,
• ketone, α-halo ketone, and α-hydroxy ketone,
• lactone and thiolactone,
• isocyanate,
• thiocyanate,
• N-hydroxysuccinimide ester,
• imide,
• imine,
• imidate,
• oxazoline, oxazolinium, oxazine, and oxazinium,
• pyridylthiol,
• thiosulphate,
• acetoalkylate corresponding to the formula:
• —OCO—A′—COCH3,
• wherein A′ is chosen from a bond, and linear and branched alkylene groups comprising from 1 to 5 carbon atoms,
• AX, and
• ASO2X,
• wherein:
• A is a group chosen from alkylene, arylene and aralkylene groups comprising from 1 to 22 carbon atoms, which may be optionally interrupted with at least one unsaturated ring, and may be optionally comprising at least one hetero atom,
• X is a leaving group chosen from halogens, OSO3H, OSO2CH3, OSO2C2H5, OSO2Tos, N(CH3)3, OPO3R2, and CN,
• wherein Tos represents a tosylate group, and
• R is chosen from a hydrogen atom and C1 to C5 alkyl radicals;
• and
• (iii) the at least one polymer with a non-silicone skeleton, comprising at least two reactive chemical functional groups, is other than vinylbutyral/vinyl alcohol/vinyl acetate copolymer.

A method of forming a rigid coat on hair comprising applying to the hair a cosmetic composition comprising, in a cosmetically acceptable medium, at least one polymer with a non-silicone skeleton, comprising at least two non-photo-activatable reactive chemical functional groups, which may be identical or different, wherein:

• (i) a film obtained by drying the composition at room temperature (22±2° C.) and at a relative humidity of 50%±5% has a Young's modulus ranging from 100 to 2000 MPa, measured at a thickness of 0.5 mm and at a traction of 20 mm/min;
• (ii) the at least two non-photo-activatable reactive chemical functional groups are chosen from the following monovalent and divalent groups:
• epoxy,
• anhydride,
• acid chloride,
• ethyleneimino,
• aldehyde,
• acetal and hemiacetal,
• aminal and hemiaminal,
• ketone, α-halo ketone, and α-hydroxy ketone,
• lactone and thiolactone,
• isocyanate,
• thiocyanate,
• N-hydroxysuccinimide ester,
• imide,
• imine,
• imidate,
• oxazoline, oxazolinium, oxazine, and oxazinium,
• pyridylthiol,
• thiosulphate,
• acetoalkylate corresponding to the formula:
• —OCO—A′—COCH3,
• wherein A′ is chosen from a bond, and linear and branched alkylene groups comprising from 1 to 5 carbon atoms,
• AX, and
• ASO2X,
• wherein:
• A is a group chosen from alkylene, arylene and aralkylene groups comprising from 1 to 22 carbon atoms, which may be optionally interrupted with at least one unsaturated ring, and may be optionally comprising at least one hetero atom,
• X is a leaving group chosen from halogens, OSO3H, OSO2CH3, OSO2C2H5, OSO2Tos, N(CH3)3, OPO3R2, and CN,
• wherein Tos represents a tosylate group, and
• R is chosen from a hydrogen atom and C1 to C5 alkyl radicals;
• and
• (iii) the at least one polymer with a non-silicone skeleton, comprising at least two reactive chemical functional groups, is other than vinylbutyral/vinyl alcohol/vinyl acetate copolymer.

A cosmetic composition for forming a rigid coat on hair comprising, in a cosmetically acceptable medium, at least one polymer with a non-silicone skeleton, comprising at least two non-photo-activatable reactive chemical functional groups, which may be identical or different, wherein:

• (i) a film obtained by drying the composition at room temperature (22±2° C.) and at a relative humidity of 50%±5% has a Young's modulus ranging from 100 to 2000 MPa, measured at a thickness of 0.5 mm and at a traction of 20 mm/min;
• (ii) the at least two non-photo-activatable reactive chemical functional groups are chosen from the following monovalent and divalent groups:
• epoxy,
• anhydride,
• acid chloride,
• ethyleneimino,
• aldehyde,
• acetal and hemiacetal,
• aminal and hemiaminal,
• ketone, α-halo ketone, and α-hydroxy ketone,
• lactone and thiolactone,
• isocyanate,
• thiocyanate,
• N-hydroxysuccinimide ester,
• imide,
• imine,
• imidate,
• oxazoline, oxazolinium, oxazine, and oxazinium,
• pyridylthiol,
• thiosulphate,
• acetoalkylate corresponding to the formula:
• —OCO—A′—COCH3,
• wherein A′ is chosen from a bond, and linear and branched alkylene groups, comprising from 1 to 5 carbon atoms,
• AX, and
• ASO2X,
• wherein:
• A is a group chosen from alkylene, arylene and aralkylene groups comprising from 1 to 22 carbon atoms, which may be optionally interrupted with at least one unsaturated ring, and may be optionally comprising at least one hetero atom,
• X is a leaving group chosen from halogens, OSO3H, OSO2CH3, OSO2C2H5, OSO2Tos, N(CH3)3, OPO3R2, and CN,
• wherein Tos represents a tosylate group, and
• R is chosen from a hydrogen atom and C1 to C5 alkyl radicals;
• and
• (iii) the at least one polymer with a non-silicone skeleton, comprising at least two reactive chemical functional groups, is other than vinylbutyral/vinyl alcohol/vinyl acetate copolymer;
• and said composition is effective to form a rigid coat on the hair.