Patent ID: 7578856
Filing Date: 2009-08-25
Classification: A61K,A61Q

Abstract:
1. A composition for dyeing keratinous fibers, comprising, in an appropriate dyeing medium: at least one aminopyrazolopyridine oxidation base chosen from those of formula (I): wherein: Z a simple covalent bond, divalent radicals chosen from: R′ optionally substituted C —O—CO—R, —CO—O—R, NR—CO—R′ and —CO—NRR′ radicals wherein R and R′ are independently chosen from a hydrogen atom and optionally substituted C optionally substituted C —O—CO—R, —CO—O—R, NR—CO—R′ and —CO—NRR′ radicals wherein R and R′ are independently chosen from a hydrogen atom and optionally substituted C R′ X— is chosen from electronegative ions or groups of ions; wherein it is understood that at least one of the groups R′ 1 and R′ 2 is chosen from cationic radicals; at least one coupler; and at least one C