| abstract |
Iminoisoindolinone dyestuffs of the formula WHEREIN R denotes an aromatic radical, R1 denotes a H or chlorine atom, an alkyl, alkoxy, hydroxyalkoxy or alkoxyalkoxy group containing 1 to 4 carbon atoms, or a phenoxy, phenalkoxy, phenalkoxyalkoxy or phenoxyalkoxy group and the X denote halogen atoms, are provided. The dyestuffs are valuable pigments which may be used for pigmenting high molecular organic materials such as cellulose, ethers, polyamides or polyesters. The pigments possess high fastness properties, especially excellent fastness to light, migration and weathering. |