Compositions for oxidation dyeing keratin fibres comprising a cationic coupler novel cationic couplers their use for oxidation dyeing and dyeing methods
US6544298B1 · kind B1 · utility
2Cited by
14References
81Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 21, 2000 |
| Grant date | Apr 8, 2003 |
| Priority date | — |
| Expiry date | Nov 21, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D233/56
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The subject of the invention is a composition for the oxidation dyeing of keratinous fibers, and in particular human keratinous fibers such as hair, comprising at least one oxidation base and, as coupler, at least one 2-acylaminophenol of formula (I) comprising at least one cationic group Z of formula (II), their use as coupler for the oxidation dyeing of keratinous fibers, oxidation dyeing methods using them, as well as novel cationic 2-acylaminophenols of formula (I′).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.