Hetero-aryl azo acylamino substituted aceto-acetarylide pigments
US4220586A · kind A · utility
7Cited by
7References
5Claims
0Family size
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Key dates
| Filing date | Oct 31, 1977 |
| Grant date | Sep 2, 1980 |
| Priority date | — |
| Expiry date | Oct 31, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B29/0025
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A monoazo pigment of the formula ##STR1## in which A is an aromatic radical containing a 5-membered or 6-membered hetero-ring which has a -CONH group bonded as part of the ring, R is an aromatic radical and B is a H atom, an alkoxy group having 1-4 C atoms, an aliphatic radical containing at most 6 C atoms, an aryl radical, an aralkyl group having 1-4 C atoms, an amino group, an alkylamino group or an arylamino group, which shows high tinctorial strength and good fastness to light, over-lacquering, migration, weathering and heat.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.