Cationic diazo compounds, compositions comprising them as direct dye, process for dyeing keratin fibers and device therefor
US7282069B2 · kind B2 · utility
0Cited by
17References
27Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 23, 2005 |
| Grant date | Oct 16, 2007 |
| Priority date | — |
| Expiry date | Apr 21, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B44/16
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present disclosure relates to cationic diazo compounds chosen from those of formula (I) and the acid addition salts thereof: Dye1-LK-Dye2 (I); and to dye compositions comprising the the compounds as direct dye, and also to a process for dyeing keratin fibers using this composition and a multi-compartment device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.