Patent ID: 7198652
Filing Date: 2007-04-03
Classification: A61K,A61Q

Abstract:
1. A composition for the oxidation dyeing of keratinous fibers comprising, in a medium suitable for dyeing, (i) at least one cationic direct dye chosen from: a) cationic direct dyes of formula (I): in which: D is a nitrogen atom or a —CH group, R R X A is a group chosen from the following structures A in which R 4 is a C 1 –C 4 alkyl radical which is unsubstituted or substituted with a hydroxyl radical and R 5 is a C 1 –C 4 alkoxy radical, with the proviso that when D represents —CH, A is A b) cationic direct dyes of formula (II): in which: R R R X− is an anion, B represents a group chosen from the following structures B1 to B6: in which R 10 is a C 1 –C 4 alkyl radical, R 11 and R 12 , which are identical or different, are a hydrogen atom or a C 1 –C 4 alkyl radical; c) cationic direct dyes of the following formula (III) and formula (III′): in which: R R R R D m=0 or 1, with the proviso that when R 13 is an unsubstituted amino group, then D 1 and D 2 simultaneously are —CH groups and m=0, X E is a group chosen from the following structures E1 to E8: in which R′ is a C 1 –C 4 alkyl radical; when m=0 and D in which R′ is a C 1 –C 4 alkyl radical, and d) cationic direct dyes of formula (IV): in which: the symbol G is a group chosen from the following structures G in which structures G 1 to G 3 , R R R R Z is an oxygen or sulphur atom or an —NR M is a group chosen from —CH; —CR wherein R is C K is a group chosen from —CH; —CR wherein R is C P is a group chosen from —CH; —CR wherein R denotes C R R X (a) a group having the following structure J in which structure J 1 , R R R R R (b) a 5- or 6-membered nitrogen-containing heterocycle group which optionally contains additional heteroatoms, carbonyl-containing groups, or a mixture of additional heteroatoms and carbonyl-containing groups and which is unsubstituted or substituted with at least one radical chosen from C (ii) in which the radicals R X (ii) in which R (ii) in which R n aliphatic radical comprising 16 to 30 carbon atoms, R (iii) at least one oxidation base.