Cationic diazo compounds, compositions comprising them as direct dye, process for dyeing keratin fibers and device therefor
US7208586B2 · kind B2 · utility
1Cited by
17References
50Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 23, 2005 |
| Grant date | Apr 24, 2007 |
| Priority date | — |
| Expiry date | Aug 26, 2025 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/4324
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Disclosed are cationic diazo compounds of the following formulaDye1-LK-Dye2 (I)in which Dye1 and Dye2 represent:Also herein disclosed are dye compositions comprising the cationic diazo compounds as direct dye, 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.