Patent EP-1792605-A1 (EP)
Inventor: LAGRANDE ALAIN
IPC: A61Q5/10
Filed: 2006-11-30
Abstract: Use of at least one specific cationic cyanine dye (I) for dyeing or optical brightening of keratin fibers, particularly human hair. Use of at least one specific cationic cyanine dye of formula (I) for dyeing or optical brightening of keratin fibers, particularly human hair. M and L : CR 7, CR 9or N +>R 5; K : C or N +>; T : N +>R 5, CR 4or N; A : linear or branched 1-8C alkylene (optionally with O or CO at one end) or a group containing at least one unsaturation that is part of a benzene or heterocyclc ring, optionally substituted by one or more 1-4C alkyl or 6-30C aryl; R 1to R 9each : hydrogen, halo, 6-30C aryl(optionally substituted by one or more of hydroxy, 1-6C linear, branched or cyclic alkoxy, 1-22C linear, branched or cyclic alkyl, themselves optionally substituted by one or more hydroxy, amino, or 1-6C alkoxy), hydroxy, cyano, nitro, sulfo, amino, acylamino, di(1-6Calkyl)amino, di(1-6C hydroxyalkyl)amino, 1-6C alkyl(1-6C hydroxyalkyl)amino, 1-6C alkoxy, 1-6C alkoxycarbonyl, 1-6C carboxyalkoxy, piperidinosulfonyl, pyrrolidino, 1-6Calkyl(1-6C haloalkyl)amino, benzoyl(1-6C)alkyl, vinyl, formyl, or 1-22 (preferably 1-6) C linear, branched or cyclic alkyl (optionally substituted by one or more hydroxy, amino, 1-6C alkoxy, optionally substituted aryl, carboxy, sulfo or halo; also optionally interrupted by N, S or O); when M and L = CR 7and CR 9, two of R 1, R 2, R 7and R 9may complete an optionally aromatic 6-30C ring or a heterocycle of 5-30 ring members, including 1-5 heteroatoms, these rings may be fused, may include carbonyl and may be substituted by one or more of 1-4C alkyl or alkoxy, (di)1-4C alkylamino, halo, phenyl, carboxy or tri(1-4C)alkylammonium(1-4C)alkyl; R 1, R 2and R 7or R 9may form a group similar to that fused to pyridinium, forming a perfectly symmetrical molecule (acridinium); two of R 3, R 4and R 6may complete a 6-30C aromatic or heterocycle of 5-30 ring members, including 1-5 heteroatoms, as above, and the ring may also form with the third substituent and the C atom carrying it, a new ring of 5-10 members, saturated or unsaturated; R 51-22C linear, branched or cyclic alkyl [optionally substituted by at least one of hydroxy, 1-6C alkoxy (linear, branched or cyclic), optionally substituted aryl, carboxy, sulfo or halo and, and the alkyl may be interrupted by N, O or S] or 6-30C aryl, optionally substituted by one or more 1-4C alkyl or alkoxy or hydroxy, or R 5completes, with N that carries it and with one R 1, R 2, R 7and R 9(and the C atom carrying it) a 5-10 membered ring, optionally substituted by alkyl, where the ring may be fused to a benzene ring or with a ring formed by two of the remaining substituents and the atoms that carry them; X ->(in)organic anion; only one of K, L and M : N =>R 5or N +>. Independent claims are included for the following: (1) composition (A) that contains, in a cosmetic medium, at least one (I), exclusive of 7 specific compounds; and (2) device of several compartments for dyeing/brightening keratin fibers in which at least one compartment contains (A) and at least one other contains an oxidizing agent. [Image].