Monophase solid solutions containing asymmetric pyrrolo [4,3-c] pyrroles as hosts

• Main Authors: HAO; ZHIMIN, IQBAL; ABUL
• Format: Patent
• Language: English
• Published: 26.05.1998
• Edition: 6
• Subjects: ADHESIVES; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DYES; HETEROCYCLIC COMPOUNDS; LAKES; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; MORDANTS; NATURAL RESINS; ORGANIC CHEMISTRY; ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; POLISHES; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

The present invention relates to a solid solution consisting of 60-90 mol-% of an asymmetric 2,5-dihydro-1,4-diketopyrrolo[3,4-c]pyrrole of the formula (I) (I) in which G1 and G2 independently of one another are different substituted or unsubstituted aromatic radicals or pyridyl, but the volume of all substituents on G1 and G2 is greater than that of two methyl groups; and 40-10 mol-% of a 2,5-dihydro-1,4-diketopyrrolo[3,4-c]pyrrole of the formula (IIa) (IIa) in which G3 and G4 independently of one another are different substituted or unsubstituted aromatic radicals or pyridyl, but the volume of all substituents on G3 and G4 is less than that of two butoxy groups; or 40-10 mol-% of a quinacridone of the formula (IIb) (IIb) in which R9 is hydrogen, halogen, C1-C4 alkyl or C1-C4 alkoxy; which is a single-phase solid solution having the crystal structure of the asymmetric 2,5-dihydro-1,4-diketopyrrolo[3,4-c]pyrrole of the formula (I).