Dye compositions for keratinic fibers containing paraphenylenediamines
US4277244A · kind A · utility
23Cited by
4References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 6, 1979 |
| Grant date | Jul 7, 1981 |
| Priority date | — |
| Expiry date | Feb 6, 1999 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K8/411
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A dyeing composition for keratinic fibers, especially human hair, comprising an aqueous solution containing a dyeing amount of at least one dye compound having the formula: ##STR1## in which R.sub.1 is --(CH.sub.2).sub.n --OR, R is methyl or ethyl, n is 2 or 3, or one of the corresponding acid salts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.