Keratin dyeing compounds, keratin dyeing compositions containing them, and use thereof
US7491245B2 · kind B2 · utility
28Cited by
23References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2007 |
| Grant date | Feb 17, 2009 |
| Priority date | — |
| Expiry date | Dec 19, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q5/10
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Compositions for the oxidative dyeing of keratin fibers, comprising a medium suitable for dyeing and one or more tricyclic fused 6-5-6 heteroaromatic keratin dyeing compounds having one heteroatom. 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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.