Patent ID: 6565615
Filing Date: 2003-05-20
Classification: A61K,A61Q

Abstract:
An aqueous oxidative hair dye composition for application to hair comprising:(a) at least one primary intermediate; (b) at least one coupler; (c) an oxidizing agent; (d) an organic solvent; (e) a thickening agent selected from the group consisting of a mixture of surfactants, polyurethanes, and polyacrylic acid derivatives and mixtures thereof, said thickening agent being present in the composition to provide a viscosity of from about 1,000 to about 25,000 cps; and (f) water, said composition containing at least one of:(1) as the at least one primary intermediate (a), the compound of formula I: wherein R1 is a C2-C6 alkyl group or a C2-C6 alkyl group in which one or more of the hydrogen atoms is replaced by a hydroxyl and X and Y are independently hydroxyl or amino groups, provided that if one of X and Y is hydroxyl, the other is amino, or (2) as the at least one coupler (b), the coupler compound of formula III: where R7 and R8 are independently hydrogen, C1-C6 alkyl or hydroxyalkyl, provided that one of R7 and R8 must be other than hydrogen, said hair dyeing composition having a cumulative HLB Index of less than about 2.5.