Phenyl-azo-hydroxynaphthoic acid amide pigments containing at least one carbonamide group
US4737581A · kind A · utility
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4References
4Claims
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Key dates
| Filing date | Apr 18, 1985 |
| Grant date | Apr 12, 1988 |
| Priority date | — |
| Expiry date | Apr 18, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08K5/23
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Azo compounds of the formula I ##STR1## wherein X is --H, --CH.sub.3, --CF.sub.3, --NO.sub.2, --COOR.sub.1, --NHCOR.sub.2 or --COHN.sub.2, and R.sub.1 and R.sub.2 are as defined in claim 1, are suitable for pigmenting high-molecular organic material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.