Tetrachloro substituted disazo pigments
US4065449A · kind A · utility
3Cited by
1References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 10, 1975 |
| Grant date | Dec 27, 1977 |
| Priority date | — |
| Expiry date | Dec 10, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B33/153
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Disazo pigments of the formula ##STR1## WHEREIN A represents a carbocyclic or heterocyclic aromatic radical, in particular, those of the formula ##STR2## WHEREIN EACH OF X and Y represents a hydrogen or a halogen atom, an alkyl or alkoxy group of 1 to 6 carbon atoms, an aryloxy, trifluoromethyl, nitro, cyano, carboxylic ester or carboxy amide group, or wherein X and Y together represent a fused benzene ring are valuable pigments coloring plastics and lacquers in yellow to orange shades of excellent fastness properties.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.