Benzinaldazolyl-, quinolonyl-, or phenmorpholonylazo-3-cyano-4-methyl-1,2-[1',2']-benz-[4',5']-imidazolo-6 -hydroxypyridine colorants
US4012371A · kind A · utility
7Cited by
2References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 10, 1975 |
| Grant date | Mar 15, 1977 |
| Priority date | — |
| Expiry date | Mar 10, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B29/3604
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Azo colorants of the formula ##STR1## wherein A denotes the radical of a heterocyclic diazo component, R.sub.1 denotes a hydroxyl, alkyl, phenyl or alkoxycarbonyl group, R.sub.2 denotes a H atom or an alkyl, phenyl, acyl, nitrile, alkoxycarbonyl or carbamoyl group, and X and Y denote substituents which do not confer solubility in water are prepared. The compounds are useful for pigmenting high molecular weight organic materials, such as polyesters, polyolefins and rubber. The compounds have excellent fastness to light, weathering and migration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.