Patent ID: 7323015

Claim:
A composition for the oxidation dyeing of keratin fibers, comprising, in a suitable dyeing medium, at least one oxidation dye, at least one C 10 -C 14 fatty alcohol and at least one cationic poly(vinyllactam) polymer comprising: a) at least one monomer chosen from vinyllactams and alkylvinyllactams; b) at least one monomer chosen from monomers of structures (Ia) or (Ib): wherein: X is chosen from an oxygen atom and NR 6 radicals, R 1 and R 6 , which may be identical or different, are chosen from hydrogen atoms, and linear and branched C 1 -C 5 alkyl radicals, R 2 is chosen from linear and branched C 1 -C 4 alkyl radicals, R 3 , R 4 and R 5 , which may be identical or different, are chosen from hydrogen atoms, linear and branched C 1 -C 30 alkyl radicals, and radicals of formula (II): —(Y 2 ′) r —(CH 2 —CH(R 7 )—O) x —R 8 (II) wherein: Y, Y 1 and Y 2 , which may be identical or different, are chosen from linear and branched C 2 -C 16 alkylene radicals, R 7 is chosen from hydrogen atoms, linear and branched C 1 -C 4 alkyl radicals, and linear and branched C 1 -C 4 hydroxyalkyl radical, R 8 is chosen from hydrogen atoms, linear and branched C 1 -C 30 alkyl radicals, p, q and r, which may be identical or different, are integers equal to the value zero, or the value 1, m and n, which may be identical or different, are integers ranging from 0 to 100, x is an integer ranging from 1 to 100, Z is chosen from organic and inorganic acid anions, provided that: at least one of the substituents R 3 , R 4 , R 5 or R 8 is chosen from linear and branched C 9 -C 30 alkyl radicals, if m or n is different from zero, then q is equal to 1, if m or n are equal to zero, then p or q is equal to 0; and at least one synthetic thickener.