Hair dye and hair dye composition
US8118881B2 · kind B2 · utility
2Cited by
2References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2008 |
| Grant date | Feb 21, 2012 |
| Priority date | — |
| Expiry date | Apr 5, 2029 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B19/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A hair dye containing a compound represented by the following general formula (I):wherein R1 and R2 each independently represent a hydrogen atom or a straight chain or branched alkyl group having 1 to 5 carbon atoms, and An− represents an inorganic anion, an organic anion, or a complex salt anion, respectively.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.