Naphthalene cationic coupler for oxidation dyeing of keratin...

Details Naphthalene cationic coupler for oxidation dyeing of keratin... Naphthalene cationic coupler for oxidation dyeing of keratin...

A - Human Necessities

61

K

A61K 8/49 (2006.01) A61Q 5/10 (2006.01) C07D 295/13 (2006.01)

Patent

CA 2323709

The invention relates to a composition for oxidation dyeing of keratin fibers, especially human keratin fibers such as hair, comprising at least one oxidation base and a coupler consisting of at least one 2-hydroxynaphthalene of formula (I). The invention also relates to a cationic Z group of formula (II), the use thereof as a coupler for oxidation dyeing of keratin fibers, methods for oxidation dyeing of keratin fibers, and novel cationic 2-hydroxynaphthalenes of formula (I').

L'invention a pour objet une composition pour la teinture d'oxydation des fibres kératiniques, et en particulier des fibres kératiniques humaines telles que les cheveux, comprenant au moins une base d'oxydation et, à titre de coupleur, au moins un 2-hydroxynaphtalène de formule (I) comportant au moins un groupement cationique Z de formule (II), leur utilisation à titre de coupleur pour la teinture d'oxydation des fibres kératiniques, les procédés de teinture d'oxydation les mettant en oeuvre, ainsi que de nouveaux 2- hydroxynaphtalènes cationiques de formule (I').

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