Cationic diazo compounds, compositions comprising them as direct dye, process for dyeing keratin fibers and device therefor
US7288122B2 · kind B2 · utility
0Cited by
18References
24Claims
0Family size
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Key dates
| Filing date | Jun 23, 2005 |
| Grant date | Oct 30, 2007 |
| Priority date | — |
| Expiry date | Mar 16, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B43/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present disclosure relates to cationic diazo dye compounds of formula (I):Dye1-LK-Dye2, (I)dye compositions comprising the direct dye compounds, and also to a process for dyeing keratin fibers using this composition and a multi-compartment kit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.