Para-phenylenediamine derivatives containing a pyrrolidyl group, and use of these derivatives for coloring keratin fibers
US7132534B2 · kind B2 · utility
1Cited by
79References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 7, 2003 |
| Grant date | Nov 7, 2006 |
| Priority date | — |
| Expiry date | Apr 20, 2024 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D403/12
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention relates to novel pyrrolidyl-substituted para-phenylenediamine derivatives, to dye compositions containing them and to the process for dyeing keratin fibers using these compositions.The present invention makes it possible in particular to obtain a chromatic, strong, relatively unselective and resistant coloration of keratin fibers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.