Cationic compounds, their use for the oxidation dyeing of keratin fibres, dye compositions and dyeing processes
US6379398B1 · kind B1 · utility
15Cited by
6References
31Claims
0Family size
Assignee
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Key dates
| Filing date | Sep 1, 1999 |
| Grant date | Apr 30, 2002 |
| Priority date | — |
| Expiry date | Sep 1, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D249/08
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Dibenzenic ortho-phenylenediamines comprising at least one cationic group Z, Z being chosen from quaternized aliphatic chains, aliphatic chains comprising at least one quaternized saturated ring, and aliphatic chains comprising at least one quaternized unsaturated ring, to their use as oxidation base, coupler or autooxidizable dye for the oxidation dyeing of keratin fibers, to dye compositions containing them, and to oxidation dyeing processes using them.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.