Cationic oxidation bases, their use of dyeing keratin fibres, dyeing compositions and dyeing methods
US6660046B1 · kind B1 · utility
26Cited by
8References
36Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2001 |
| Grant date | Dec 9, 2003 |
| Priority date | — |
| Expiry date | Aug 30, 2021 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D403/12
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The invention concerns novel pyrazole derivatives comprising at least a cationic group Z, Z being selected among the quaternized aliphatic chains, aliphatic chains comprising at least a saturated quaternized cycle, and aliphatic chains comprising at least an unsaturated quaternized cycle, their use as oxidation base for dyeing keratin fibres, dyeing compositions containing them, and dyeing methods using them.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.