Patent ID: 6409772
Filing Date: 2002-06-25
Classification: A61K,A61Q

Abstract:
Ready-to-use dye composition, characterized in that it comprises, in a medium which is suitable for dyeing, from 0.01 to 10% by weight relative to the total weight of the ready-to-use dye composition, of at least one compound of formula (I): in which: n denotes an integer from 2 to 4, nâ€² denotes an integer from 0 to 4, R1 and R2, which may be identical or different, denote a hydrogen atom, a halogen atom or an alkyl, alkoxy, carboxyl or acyl radical; R3 and R4, which may be identical or different, denote a hydrogen atom, a halogen atom or an alkyl, alkoxy, carboxyl or acyl radical; Z and Zâ€², which may be identical or different, denote a hydrogen atom or a glycosyl radical; and at least one oxidizing agent chosen from hydrogen peroxide, urea peroxide, persalts and peracids, copper salts, quinones and nitrites, pyranose oxidases, glucose oxidases, glycerol oxidases, lactate oxidases, pyruvate oxidases, uricases, choline oxidases, laccases, sarcosine oxidases, bilirubin oxidases, tyrosinases, peroxidases and catalases, or from plant or animal extracts containing the above-mentioned enzymes, optionally in the presence of a donor required for the functioning of the said enzymes.