Patent ID: 7326258
Filing Date: 2008-02-05
Classification: A61K,A61Q

Abstract:
1. A cosmetic composition for dyeing keratin fibers comprising, in a suitable dyeing medium: at least one hydroxyalkyl compound of formula (I) below: in which: A is chosen from a nitrogen atom, a group NR B is chosen from oxygen, sulfur, and nitrogen atoms, and a group —CR A and B represent at least one hetero atom bearing a permanent cationic charge; the electrical neutrality of the compound of formula (I) is ensured by an external counterion Y and/or by one of the substituents borne by the tricyclic nucleus; D is chosen from amino groups, which are unsubstituted or mono- or disubstituted with at least one linear or branched C D being in the position para to the carbon that bears A or in the position para to the carbon that bears B; the substituent —N(zX)R z is chosen from linear or branched C R R when R R and the mesomeric forms thereof; and