Patent ID: 7371264
Filing Date: 2008-05-13
Classification: A61K,A61Q

Abstract:
1. A keratin dyeing composition comprising: (A) a medium suitable for dyeing; and (B) at least one bicyclic 5-6 system of aza heteroaromatic keratin dyeing compounds wherein the 5-membered rings have one to three nitrogen atoms and an N-hydroxy or N-amino group and derivatives thereof, according to the following formulas: wherein B 1 and B 2 are independently selected from CH or N; wherein the corresponding R 1 and R 2 is absent when B is N; wherein R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , and R 8 are the same or different and are selected from the group consisting of: (a) C-linked monovalent substituents selected from the group consisting of: (b) S-linked monovalent substituents selected from the group consisting of SA (c) O-linked monovalent substituents selected from the group consisting of OA (d) N-linked monovalent substituents selected from the group consisting of NA (e) monovalent substituents selected from the group consisting of COOA (f) fluoroalkyl monovalent substituents selected from the group consisting of mono-, poly-, and per-fluoro alkyl systems comprising from about 1 to about 12 carbon atoms and from about 0 to about 4 heteroatoms; (g) hydrogen; wherein at least one of said R wherein A wherein X is a halogen selected from the group consisting of F, Cl, Br, and I.