Patent ID: 7341606
Filing Date: 2008-03-11
Classification: A61K,A61Q

Abstract:
1. A keratin dyeing composition comprising: (A) a medium suitable for dyeing; and (B) at least one bicyclic fused 5-5-membered aza heteroaromatic keratin dyeing compounds having a ring junction nitrogen and an N-hydroxy or N-amino group and derivatives thereof, according to the following formulas: wherein B 1 , B 2 , B 3 , B 4 , and B 5 are selected from the group consisting of CH and N; wherein the corresponding R1, R2, R3, R4, and R5 is absent when B is N; wherein R1, R2, R3, R4, R5, R6, R7, and R8 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 A wherein X is a halogen selected from the group consisting of F, Cl, Br, and I.