Dicationic compounds for dyeing human keratin fibers, and compositions comprising them
US7261743B2 · kind B2 · utility
29Cited by
4References
29Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 7, 2002 |
| Grant date | Aug 28, 2007 |
| Priority date | — |
| Expiry date | Nov 20, 2022 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K2800/4322
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present disclosure relates to the process of dyeing human keratinous fibers, such as the hair, with at least one specific direct dye in cosmetic compositions. Also disclosed herein are the direct dyeing and lightening compositions comprising said compounds, and the corresponding dyeing kits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.