Iminoisoindolinone pigments containing phenylazoacetoacetyl-aminophenylene groups
US4314938A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jun 11, 1980 |
| Grant date | Feb 9, 1982 |
| Priority date | — |
| Expiry date | Jun 11, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09B56/00
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The invention relates to iminoisoindolinone pigments of the formula ##STR1## wherein X is halogen, Y and Z are halogen, C.sub.1 -C.sub.4 alkoxy, or aryloxy, R.sub.1 and R.sub.2 are hydrogen, halogen, C.sub.1 -C.sub.2 alkyl or C.sub.1 -C.sub.2 alkoxy, and A is phenyl which can be substituted by halogen, trifluoromethyl, C.sub.1- C.sub.2 alkyl, C.sub.1 -C.sub.2 alkoxy, or by a group of the formula --CONHR.sub.3 or --NHCOR.sub.4, wherein R.sub.3 is hydrogen, C.sub.1- C.sub.2 alkyl, or phenyl which can be substituted by halogen, methyl, methoxy or trifluoromethyl, and R.sub.4 is phenyl which can be substituted by halogen, methyl or methoxy, or is C.sub.1 -C.sub.2 alkyl, or A is a heterocyclic radical. These pigments are distinguished by particulary excellent color strength and fastness to migration and are suitable for pigmenting organic material of high molecular weight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.