A - Human Necessities – 45 – D
Patent
A - Human Necessities
45
D
A45D 19/00 (2006.01) A61K 7/13 (1995.01)
Patent
CA 2249469
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 an acid addition salt thereof, wherein R¿2? is particularly hydrogen, halogen, alkoxy, aryloxy, acetylamido, etc., and each of R¿1? and R¿3?, which are the same or different, is particularly hydrogen, alkyl, aryl, a heterocyclic ring, etc., with the proviso that when R¿2? and R¿3? are both a hydrogen atom, then R¿1? is other than a hydrogen atom, a C¿1-5? alkyl radical or a phenyl radical, 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 de formule (I), où l'un de ses sels d'addition avec un acide, dans laquelle: R2 désigne notamment hydrogène, halogène, alcoxy, aryloxy, acétylamido, ...; R1 et R3 désignent, indépendants, notamment: hydrogène, alkyle, aryle, un hétérocycle, ...; étant entendu que lorsque R2 et R3 représentent simultanément un atome d'hydrogène, alors R1 est différent d'un atome d'hydrogène, d'un radical alkyle en C1-C5 ou d'un radical phényle; et au moins une base d'oxydation.
Malle Gerard
Vidal Laurent
L'oreal
Robic
LandOfFree
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