A - Human Necessities – 61 – K
Patent
A - Human Necessities
61
K
A61K 7/13 (1995.01)
Patent
CA 2249477
A composition for dyeing keratin fibres, particularly human hair, consisting of a medium suitable for use in dyeing and containing, as the coupler, at least one compound of formula (I) or (II), wherein R¿1? is particularly hydrogen, halogen, aryloxy, alkoxy, acyloxy, arylthio, alkylthio, heteroarylthio, heteroaryloxy, etc., each of R¿2? and R¿3?, which are the same or different, is particularly hydrogen, halogen, alkyl, aryl, alkylthio, arylthio, benzylthio, etc., each of Z¿a?, Z¿b? and Z¿c?, which are the same or different, is a nitrogen atom or a carbon atom with a radical R¿4?, R¿5?, R¿6? or R¿7?, each of R¿4?, R¿6? and R¿7?, which are the same or different, is particularly hydrogen, alkyl, aryl, a heterocyclic ring, halogen, etc., and R¿5? is particularly hydrogen, halogen, acyl, acyloxy, carbamoyl, etc., as well as at least one oxidation base, is disclosed.
La présente invention concerne une composition pour la teinture des fibres kératiniques, en particulier des cheveux humains, contenant dans un milieu approprié pour la teinture: à titre de coupleur au moins un composé répondant à l'une des formules (I) ou (II) où R1 désigne notamment hydrogène, halogène, aryloxy, alcoxy, acyloxy, arylthio, alkylthio, hétéroarylthio, hétéroaryloxy, ...; R2 et R3, indépendants, désignent notamment hydrogène, halogène, alkyle, aryle, alkylthio, arylthio, benzylthio, ...; Za, Zb et Zc, indépendants désignent un atome d'azote ou un atome de carbone porteur d'un radical R4, R5, R6 ou R7; R4, R6 et R7 identiques ou différents, désignent notamment hydrogène, alkyle, aryle, un hétérocycle, un halogène, ...; R5 désigne notamment hydrogène, halogène, acyle, acyloxy, carbamoyle, ...; et au moins une base d'oxydation.
Malle Gerard
Vidal Laurent
L'oreal
Robic
LandOfFree
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