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US 7,306,631 B2Granted
Keratin dyeing compounds, keratin dyeing compositions containing them, and use thereof
AssigneeThe Procter & Gamble Company
InventorsRobert Wayne Glenn, Jr., Muill Lim, John Michael Gardlik, Bryan Patrick Murphy, Charles Wayne Rees
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Abstract
Compositions for the oxidative dyeing of keratin fibers, comprising a medium suitable for dyeing and one or more bicyclic 5-6 heteroaromatic keratin dyeing compounds with one ring junction nitrogen one or two extra heteroatoms. A method for oxidative dyeing of keratin fibers, comprising applying such compositions in the presence of an oxidizing agent, for a period sufficient to develop the desired coloration.
Claims16
A keratin dyeing composition comprising:
- (A) a medium suitable for dyeing;
- and
- (B) one or more bicyclic 5-6 heteroaromatic keratin dyeing compounds with one ring junction nitrogen and one or two extra heteroatoms
- wherein said bicyclic 5-6 heteroaromatic keratin dyeing compound with one ring junction nitrogen and one or two extra heteroatoms is an unsubstituted or substituted member selected from the group consisting of H-pyrrolo[1,2-b]pyridazine, H-pyrrolo[1,2-f]pyrimidine, H-pyrrolo[1,2-a]pyrazine, H-pyrrolo[1,2-a]pyrimidine, H-imidazo[1,5-a]pyridine, pyrazolo[1,5-b]pyridazine, pyrazolo[1,5-f]pyrimidine, pyrazolo[1,5-a]pyrazine, imidazo[1,5-b]pyridazine, imidazo[1,5-f]pyrimidine, imidazo[1,5-a]pyrazine, imidazo[1,5-a]pyrimidine, imidazo[1,2-b]pyridazine, imidazo[1,2-f]pyrimidine, imidazo[1,2-a]pyrazine, and imidazo [1,2-a]pyrimidine.
1 more element
A keratin dyeing composition comprising:
- (A) a medium suitable for dyeing;
- and
- (B) one or more bicyclic 5-6 heteroaromatic keratin dyeing compounds with one ring junction nitrogen and one or two extra heteroatoms according to the following formulas:
Dependencies are inferred from the claim text.