N-alkylpolyhydroxylated secondary para-phenylenediamines, dye compositions comprising them, processes, and uses thereof
US7591860B2 · kind B2 · utility
10Cited by
23References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2005 |
| Grant date | Sep 22, 2009 |
| Priority date | — |
| Expiry date | Sep 22, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C215/16
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present disclosure relates to novel N-alkylpolyhydroxylated secondary para-phenylenediamines, to processes for preparing them, to compositions for dyeing keratin fibers, for example keratin fibers such as the hair, comprising, in a medium that is suitable for dyeing, at least one such secondary para-phenylenediamine. The present disclosure also relates to processes for dyeing keratin fibers with the compositions according to the present disclosure, and to dyeing kits containing such compositions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.