Patent ID: 8043385
Filing Date: 2011-10-25
Classification: A61K,A61Q

Abstract:
1. A dyeing composition for keratinous fibers comprising, in a medium appropriate for dyeing: A) one or more cationic cellulose ether(s) comprising from 4,000 to 10,000 anhydroglucose units, said anhydroglucose units being substituted by at least: (i) one substituent of formula [R R 4 and R 5 represent, independently of one another, a methyl or ethyl group, R 6 represents a linear or branched C 8 -C 24 alkyl group or an aralkyl group, the linear or branched alkyl part of which is a C 8 -C 24 alkyl group, R 9 represents a divalent group which makes possible the uniting with the anhydroglucose group and which is chosen from -(B) q —CH 2 —CHOH—CH 2 — and —CH 2 CH 2 —, q denoting 0 or 1, B denoting a divalent group —(CH 2 CH 2 O) n′ —, n′ being an integer ranging from 1 to 100, X 2 − represents an anion; and (ii) a substituent of formula [R R 1 , R 2 and R 3 represent, independently of one another, a methyl or ethyl group, R 8 represents a divalent group which makes possible the uniting with the anhydroglucose group and which is chosen from -(A) p -CH 2 —CHOH—CH 2 — and —CH 2 CH 2 —, p denoting 0 or 1, A denoting a divalent group —(CH 2 CH 2 O) n —, n being an integer ranging from 1 to 100, X 1 − represents an anion; B) one or more metasilicate(s); and C) one or more oxidation dye(s) chosen from benzene, heterocyclic, and naphthalene oxidation dyes.