Cationic a -acylaminophenols, their use as coupler for oxidation dyeing, compositions containing them, and dyeing methods
US6455737B1 · kind B1 · utility
2Cited by
14References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2000 |
| Grant date | Sep 24, 2002 |
| Priority date | — |
| Expiry date | Nov 22, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C233/24
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention relates to novel cationic 2-acylaminophenols of formula (I) comprising at least one cationic group, to their use as couplers for the oxidation dyeing of keratin fibers, and in particular of human keratin fibers such as the hair, to oxidation dye compositions containing them in combination with at least one oxidation base, and to oxidation dyeing processes using them.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.