Composition for the oxidation dyeing of keratin fibers, comprising an oxidation base, an indole coupler and an additional heterocyclic coupler, and dyeing process
US5769903A · kind A · utility
24Cited by
10References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 17, 1997 |
| Grant date | Jun 23, 1998 |
| Priority date | — |
| Expiry date | Apr 17, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K8/492
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to a composition for the oxidation dyeing of keratin fibers, in particular human keratin fibers such as the hair, comprising an oxidation base in combination with at least one suitably selected indole coupler and at least one additional heterocyclic coupler which is also suitably selected, as well as to the dyeing process using this composition with an oxidizing agent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.