Quaternized azo dyestuffs
US4113717A · kind A · utility
4Cited by
2References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 12, 1976 |
| Grant date | Sep 12, 1978 |
| Priority date | — |
| Expiry date | Jan 12, 1996 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B44/103
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Azo dyestuffs devoid of carboxylic acid and sulphonic acid groups and of the formula I: ##STR1## wherein A.sym. is a positively-charged aromatic or heterocyclic group, X.crclbar. is an anion; R is hydrogen or an optionally-substituted alkyl, aryl, aralkyl or cycloalkyl group, R.sup.1 is hydrogen, or an optionally-substituted alkyl or aralkyl group and the quinoline ring may be further substituted, and processes for the manufacture of such dyestuffs which are useful for the coloration of synthetic polymeric materials such as acrylonitrile polymers and copolymers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.