Compositions containing pyrazolin-3,5-dione couplers for use in keratin fiber dyeing methods and kits
US6210447A · kind A · utility
4Cited by
15References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 10, 1999 |
| Grant date | Apr 3, 2001 |
| Priority date | — |
| Expiry date | Feb 10, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K8/494
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to a composition for dyeing keratin fibers, in particular human hair, containing, in a medium which is suitable for dyeing: PA1 as coupler, at least one compound of formula: ##STR1## or one of the addition salts thereof with an acid; PA1 and at least one oxidation base.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.