Patent ID: 7527654
Filing Date: 2009-05-05
Classification: A61K,A61Q

Abstract:
1. Process for dyeing keratin fibres, consisting in bringing said fibres into contact with a dye composition comprising, in a suitable dyeing medium, at least one compound of formula (I), and the addition salts thereof: in which: A is a substituted or unsubstituted, 5- to 16-membered, fused or non-fused aromatic or heteroaromatic nucleus; X represents an oxygen atom, a sulphur atom or a group CR R R W represents a group CR R Y represents an oxygen atom, a sulphur atom or a group NR R Z represents a group —C n represents an integer from 1 to 4; B represents a substituted or unsubstituted, 5- to 16-membered, fused or non-fused aromatic or heteroaromatic nucleus, and b) at least one compound of formula (II) R