Metaphenylenediamines and dyeing compositions containing the same
US4125367A · kind A · utility
32Cited by
1References
32Claims
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Assignee
Inventors
Key dates
| Filing date | Sep 13, 1976 |
| Grant date | Nov 14, 1978 |
| Priority date | — |
| Expiry date | Sep 13, 1996 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K8/466
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A coupler having the general formula (I): ##STR1## in which R is selected from the group consisting of hydrogen, alkyl or hydroxyalkyl having 1 to 3 carbon atoms, and in which Z is selected from the group consisting of hydroxyalkyl, alkoxyalkyl in which the alkoxy group comprises 1 to 2 carbon atoms, mesylaminoalkyl, acetylaminoalkyl, ureidoaminoalkyl or carbethoxyaminoalkyl, the alkyl groups constituting Z comprising from 2 to 3 carbon atoms, or the salts of the corresponding acids. This coupler forms a dyeing composition when mixed with an oxidation base consisting of a paraphenylenediamine having the general formula: ##STR2##
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.