Mixed crystals and solid solution of 1,4-diketopyrrolopyrroles

Details Mixed crystals and solid solution of 1,4-diketopyrrolopyrroles Mixed crystals and solid solution of 1,4-diketopyrrolopyrroles

1995-09-28

1998-01-13

Richter, Johann

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

5483051, 5483117, 5483647, 548255, 5482664, 548224, 548217, 548235, 548159, 544373, 544333, 544144, 546199, 5462767, 106494, 534752, C07D48704

Patent

active

057081883

ABSTRACT:
The invention relates to mixed crystals of different compounds of formulae ##STR1## as well as single-phase solid solutions of two different compounds of formulae I and II, wherein the diketopyrrolopyrrole having the smaller geometrical constitution is present in an amount of 53 to 70 mol %. A and B are as defined in claim 1. The novel mixed crystals as well as the novel solid solutions are admirably suited for pigmenting organic material of high molecular weight.

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