Oxidation dyeing composition for keratinous fibres containing a 3-aminopyridine azo derivative and dyeing method using said composition
US6797013B1 · kind B1 · utility
30Cited by
3References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 5, 2000 |
| Grant date | Sep 28, 2004 |
| Priority date | — |
| Expiry date | Jan 5, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K8/494
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention relates to a composition for the oxidation dyeing of keratin fibres, and in particular human keratin fibres such as the hair, comprising, in a medium which is suitable for dyeing, at least one heterocyclic oxidation base and at least one 3-aminopyridine derivative as direct dye, as well as to the dyeing process using this composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.