Composition for dyeing keratin fibers, comprising a diamino-N,N-dihydropyrazolone compound, a coupler, and a polyol
US7488355B2 · kind B2 · utility
5Cited by
34References
29Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 31, 2006 |
| Grant date | Feb 10, 2009 |
| Priority date | — |
| Expiry date | Jun 30, 2026 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K8/494
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present disclosure relates to a composition for dyeing keratin fibers, for instance human keratin fibers such as the hair, comprising at least one oxidation base chosen from diamino-N,N-dihydropyrazolone compounds and addition salts thereof, at least one coupler and at least one C4-C30 polyol. The present disclosure also relates to the dyeing process and kit using the composition as presently disclosed. Use of the present disclosure makes it, for example, possible to obtain fast coloration of keratin fibers that is resistant to light and to washing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.