Secondary para-phenylenediamines having a carboxyl group, dye compositions comprising the same, and dyeing processes using the compositions
US7384432B2 · kind B2 · utility
1Cited by
15References
30Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2005 |
| Grant date | Jun 10, 2008 |
| Priority date | — |
| Expiry date | May 20, 2025 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C229/18
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present disclosure relates to novel secondary para-phenylenediamines having a carboxyl group. The present disclosure further relates to a dye composition comprising at least one secondary para-phenylenediamine for dyeing keratin fibers, such as human hair, a process for preparing the composition, and a process and kit for dyeing keratin fibers using the composition.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.