Patent ID: 7217295

Claim:
A composition for dyeing human keratin fibers comprising a cosmetically acceptable medium and, in said medium, an effective amount of at least one conductive polymer chosen from: where: n ranges from 5 to 10,000; R 1 , R 2 , R 3 , and R 4 , which may be identical or different, are chosen from hydrogen, —R′, —OR′, —COOR′, —OCOR′, a halogen atom, a nitro radical, a cyano radical, an alkylcyano radical, a solubilizing group, and a spacer-linked solubilizing group; R′ is chosen from a linear or branched C 1 –C 20 alkyl radical; at least one of R 1 , R 2 , R 3 , and R 4 is chosen from a solubilizing group and a spacer-linked solubilizing group; the spacer-linked solubilizing group comprises a spacer group and at least one solubilizing group where the spacer group links to the ring the at least one solubilizing group; and the at least one conductive polymer is in soluble form and absorbs in the visible spectrum, wherein the at least one conductive polymer is present at a concentration of at least 0.001% by weight relative to the total weight of the composition.