Disazo pigments containing ether substituted alkoxy carbonyl groups
US4053464A · kind A · utility
3Cited by
4References
1Claims
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Key dates
| Filing date | Jun 17, 1974 |
| Grant date | Oct 11, 1977 |
| Priority date | — |
| Expiry date | Jun 17, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B33/147
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
New disazo pigments of the formula ##STR1## wherein R.sub.1 denotes a benzene radical, R.sub.2 denotes an aromatic radical, X and X' denote hydrogen or chlorine atoms, alkyl or alkoxy groups containing 1-6 carbon atoms, or aryloxy groups, R.sub.3 denotes an alkyl group containing 1-6 carbon atoms, or an aryl radical, and Z denotes a hydrogen or halogen atom, an alkoxy group containing 1-4 carbon atoms, or a nitro or nitrile group which are useful for pigmenting high molecular organic material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.