Compositions for dyeing keratinous fibers comprising indazoleamine derivatives and dyeing process
US6027538A · kind A · utility
22Cited by
8References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 24, 1998 |
| Grant date | Feb 22, 2000 |
| Priority date | — |
| Expiry date | Aug 24, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K8/494
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A composition for the oxidation dyeing of keratinous fibers containing at least one coupler selected from indazoleamine derivatives and acid addition salts thereof and at least one oxidation base. Another aspect of the invention is the use of indazoleamine derivatives as coupler for the oxidation dyeing of keratinous fibers, in combination with at least one oxidation base, and the dyeing processes employing them.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.