Cosmetic composition comprising at least one cationic poly(vinyllactam), at least one fatty alcohol, and at least one polyol, cosmetic process for treating keratin fibers and use of the composition

An aerosol device comprising a container comprising a cosmetic composition and a means for distributing the composition, wherein the cosmetic composition comprises, in a cosmetically acceptable medium:

• (i) at least one cationic poly(vinyllactam) polymer comprising:
• a) at least one monomer chosen from vinyllactam and alkylvinyllactam monomers;
• b) at least one monomer chosen from monomers of formulas (Ia) and (Ib):
• wherein:
• X is chosen from oxygen and NR6 radicals,
• R1 and R6, which may be identical or different, are chosen from hydrogen and linear or branched C1-C6 alkyl radicals,
• R2 is chosen from linear or branched C1-C4 alkyl radicals,
• R3, R4, and R5, which may be identical or different, are chosen from hydrogen, linear or branched C1-C30 alkyl radicals, and radicals of formula (II):
• —(Y2)r—(CH2—CH(R7)—O)x—R8 (II)
• Y, Y1, and Y2, which may be identical or different, are chosen from linear or branched C2-C16 alkylene radicals,
• R7 is chosen from hydrogen, linear or branched C1-C4 radicals, and linear or branched C1-C4 hydroxyalkyl radicals,
• R8 is chosen from hydrogen and linear or branched C1-C30 alkyl radicals,
• p, q, and r, which may be identical or different, are equal to 0 or 1,
• m and n, which may be identical or different, are chosen from integers ranging from 0 to 100,
• x is an integer ranging from 1 to 100,
• Z is an organic or mineral acid anion,
• with the proviso that:
• at least one of the substituents R3, R4, R5, or R8 is a linear or branched C9-C30 alkyl radical,
• if m or n is other than zero, then q is equal to 1, and
• if m or n is equal to zero, then p or q is equal to 0;
• (ii) cetearyl alcohol, and
• (iii) at least one polyol with a molecular weight of greater than 80.

A cosmetic treatment process comprising applying a cosmetic composition to the hair, wherein the cosmetic composition comprises, in a cosmetically acceptable medium:

• (i) at least one cationic poly(vinyllactam) polymer comprising:
• a) at least one monomer chosen from vinyllactam and alkylvinyllactam monomers;
• b) at least one monomer chosen from monomers of formulas (Ia) and (Ib):
• wherein:
• X is chosen from oxygen and NR6 radicals,
• R1 and R6, which may be identical or different, are chosen from hydrogen and linear or branched C1-C6 alkyl radicals,
• R2 is chosen from linear or branched C1-C4 alkyl radicals,
• R3, R4, and R5, which may be identical or different, are chosen from hydrogen, linear or branched C1-C30 alkyl radicals, and radicals of formula (II):
• —(Y2)r—(CH2—CH(R7)—O)x—R8 (II)
• Y, Y1, and Y2, which may be identical or different, are chosen from linear or branched C2-C16 alkylene radicals,
• R7 is chosen from hydrogen, linear or branched C1-C4 alkyl radicals, and linear or branched C1-C4 hydroxyalkyl radicals,
• R8 is chosen from hydrogen and linear or branched C1-C30 alkyl radicals,
• p, q, and r, which may be identical or different, are equal to 0 or 1,
• m and n, which may be identical or different, are chosen from integers ranging from 0 to 100,
• x is an integer ranging from 1 to 100,
• Z is an organic or mineral acid anion,
• with the proviso that:
• at least one of the substituents R3, R4, R5, or R8 is a linear or branched C9-C30 alkyl radical,
• if m or n is other than zero, then q is equal to 1, and
• if m or n is equal to zero, then p or q is equal to 0;
• (ii) cetearyl alcohol, and
• (iii) at least one polyol with a molecular weight of greater than 80.