Mix-crystal pigments based on perylenetetracarbimides, process f

Details Mix-crystal pigments based on perylenetetracarbimides, process f Mix-crystal pigments based on perylenetetracarbimides, process f

1985-10-01

1988-05-03

Daus, Donald G.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

524 90, C09B 562, C07D49106

Patent

active

047421703

ABSTRACT:
Perylenetetracarbimide mix-crystal pigments in the crystal lattice of the .alpha.- Modification of N,N'-bis-3',5'-dimethylphenylperylenetetracarbimide of the formula (1) comprising 98-70 mole percent of the symmetrical diimide of the formula (1) and correspondingly 2-30 mole percent of at least one asymmetrical diimide of the formula (2) ##STR1## in which R denotes a hydrogen atom or a methyl group.

REFERENCES:
Nagao, et al., Chem. Abstracts, vol. 100, (1984), entry 211628g.
Nagao, et al., Chem. Abstracts, vol. 93, (1980), entry 241183n.

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