Dyeing keratin fibers with 2-substituted m-toluenediamines
US4196145A · kind A · utility
6Cited by
7References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 9, 1978 |
| Grant date | Apr 1, 1980 |
| Priority date | — |
| Expiry date | Jan 9, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C255/00
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Oxidation dye compositions particularly useful for dyeing human hair containing as the meta component compounds of the formula: ##STR1## or their non-toxic salts, wherein R is alkyl, hydroxyalkyl, phenylalkyl, phenylsulfonyls, alkylsulfonyls or cyanoalkyl.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.