Dyeing compositions for keratinous fibers containing paraphenylenediamine derivatives with pyrrolidinyl group
US7179301B2 · kind B2 · utility
1Cited by
81References
94Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 13, 2001 |
| Grant date | Feb 20, 2007 |
| Priority date | — |
| Expiry date | Mar 13, 2021 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K8/4913
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The invention concerns novel dyeing compositions for keratinous fibers comprising at least a paraphenylenediamine derivative with pyrrolidinyl group as oxidation base, a dyeing method and a dyeing kit using said composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.