Agents for coloring keratin fibers
US7393366B2 · kind B2 · utility
0Cited by
1References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 27, 2006 |
| Grant date | Jul 1, 2008 |
| Priority date | — |
| Expiry date | Aug 9, 2026 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD06P3/30
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention relates to agents for coloring keratin fibers which comprise at least one zwitterionic azo dye of the general formula (I)where R1 is an alkylsulfonate radical of the formula (II),
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.