Diaminopyrazole compounds and the use thereof in the oxidation dyeing of keratinous fibres
US7300469B2 · kind B2 · utility
11Cited by
5References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2002 |
| Grant date | Nov 27, 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 having formula (I), wherein: R1, R2, identical or different, represent a C3 C5 mono- or polyhydroxyalkyl, isopropyl, n-propyl or ethyl group, said groups being linear or branched, and their physiologically acceptable salts. The invention also relates to a composition for dyeing keratinous fibres containing a compound having formula (I) and the method for using same.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.