Naphthalene cationic coupler for oxidation dyeing of keratin fiber
US6475247B1 · kind B1 · utility
2Cited by
7References
73Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 22, 2000 |
| Grant date | Nov 5, 2002 |
| Priority date | — |
| Expiry date | Nov 22, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61Q5/10
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention relates to a composition for the oxidation dyeing of keratin fibers, and in particular of human keratin fibers such as the hair, comprising at least one oxidation base and, as coupler, at least one 2-hydroxynaphthalene of formula (I) comprising at least one cationic group Z of formula (II), to their use as couplers for the oxidation dyeing of keratin fibers, to oxidation dyeing processes using them and to novel cationic 2-hydroxynaphthalenes of formula (I′).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.