Diaminopyrazole compounds and the use thereof in the oxidation dyeing of keratinous fibres
US7285136B2 · kind B2 · utility
10Cited by
5References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2002 |
| Grant date | Oct 23, 2007 |
| Priority date | — |
| Expiry date | Feb 14, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q5/10
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention relates to novel diaminopyrazole compounds having formula (I): wherein R1 represents a linear or branched C4-C5 alkyl or n-propyl group, or a linear or branched C3-C5 mono or polyhydroxy alkyl group, and the addition salts thereof with a physiologically acceptable acid. The invention also relates to the compositions containing such a compound for the dyeing of keratinous fibres and the method for using said compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.