Diaminopyrazole derivatives and oxidation hair dyes containing pyrazolone derivatives
US6793687B2 · kind B2 · utility
10Cited by
1References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 8, 2002 |
| Grant date | Sep 21, 2004 |
| Priority date | — |
| Expiry date | Nov 22, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q5/10
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The object of the invention is an agent for oxidatively dyeing keratin fibers, wherein it contains (a) at least one 4,5-diaminopyrazole derivative of Formula (I), (II) or (III) or its salt with organic or inorganic acids, as well as(b) at least one pyrazol-5-one derivative of the general formula (IV), (V) or (VI), or its salt with organic or inorganic acids,
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.