Henkel Kommanditgesellschaft Auf Aktien

Carsten Brake

Wibke Gross

Doris Oberkobusch

Horst Hoffkes

Helmut Muller

An agent for dyeing keratin-containing fibers, especially human hair, is comprised of a cosmetic carrier, and wherein each of R, Rand Ris independently a hydrogen atom, a halogen atom, a C-Calkyl group, a C-Calkenyl group, a hydroxyl group, a C-Calkoxy group, a C-Chydroxyalkyl group, a C-Cpolyhydroxyalkyl group, a hydroxy C-Calkyloxy group, a sulfonyl group, a carboxyl group, a C-Calkoxycarbonyl group, a hydroxy C-Calkyloxycarbonyl group, a sulfonic acid group, a sulfonamido group, a sulfonamide group, a C-Cacyl group, a formyl group, a nitro group, a carbamoyl group &#x2014;C(O)&#x2014;NRR, or a &#x2014;(CH)NRRgroup wherein each of R, R, Rand Ris independently a hydrogen atom, a C-Calkyl group or a C-Chydroxyalkyl group; and n is number from 0 to 6, wherein Rand Rcan form a 5- or 6-membered aromatic or heteroaromatic ring; and (B) at least one CH-acidic compound.

Growing community of inventors

Mulheim a.d. Ruhr, Germany

Carsten Brake