Patent ID: 7488354
Filing Date: 2009-02-10
Classification: A61K,A61Q

Abstract:
1. A method for dyeing human keratin fibers comprising applying to the fibers a dyeing composition comprising, in an appropriate cosmetic medium, at least one disulphide dye chosen from the dyes of the following formulae (I), (II), (III) or (IV): their salts, isomers and solvates, in which formulae: A and A′, which are identical or different, are chosen from radicals compositing at least one cationic or noncationic chromophore; V and V′, which are identical or different, are chosen from bridging groups; v and v′, which are identical or different, are 0 or 1; X, which are identical or different, are chosen from saturated or unsaturated, linear or branched C the coefficient p is equal to 0 or 1; C D is a radical chosen from hydroxyl, hydroxyalkyl, alkoxy, carboxyl, carboxylate, amino, alkylamino and dialkylamino radicals.