4, 5-diaminopyrazole derivatives in dimer form, and use thereof in the oxidation dyeing of keratin fibres
US6939382B2 · kind B2 · utility
11Cited by
5References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 6, 2003 |
| Grant date | Sep 6, 2005 |
| Priority date | — |
| Expiry date | May 31, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D231/38
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present, invention relates to novel 4,5-diaminopyrazole derivatives, to a composition for the oxidation dyeing of keratin fibers, and in particular of human keratin fibers, comprising, as oxidation base, at least one such derivative, and also to an oxidation dyeing process using this composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.