Disazo pigments containing tetracarboxylic acid ester groups
US4051122A · kind A · utility
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7Claims
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Key dates
| Filing date | Sep 23, 1975 |
| Grant date | Sep 27, 1977 |
| Priority date | — |
| Expiry date | Sep 23, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B33/147
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Disazo pigments of the formula ##STR1## wherein R represents alkyl containing 1 to 6 carbon atoms, cyclohexyl or phenyl, and X and Y represent hydrogen, halogen, alkyl or alkoxy groups containing 1 to 4 carbon atoms which are useful for pigmenting high molecular organic material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.