Composition of 4-amino-4'-nitrostilbene-2,2'-disulphonic acid diazo compounds and coloring process
US4266939A · kind A · utility
2Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 4, 1979 |
| Grant date | May 12, 1981 |
| Priority date | — |
| Expiry date | Jun 4, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S534/01
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention provides dyestuffs of the general formula ##STR1## in which R is hydrogen or an alkyl group having 1 to 6 carbon atoms and R' is an alkyl group having 1 to 6 carbon atoms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.