Quinacridone mixtures, process for their manufacture and their u

Details Quinacridone mixtures, process for their manufacture and their u Quinacridone mixtures, process for their manufacture and their u

1981-02-23

1983-08-23

Daus, Donald G.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

106288Q, C09B 4800

Patent

active

044005156

ABSTRACT:
Compositions of linear trans-quinacridones containing at least one component (I) selected from unsubstituted, chloro- and methyl-substituted quinacridone and at least one component (II) selected from bis-(carbamoyl)-quinacridones, the carbamoyl groups of which are unsubstituted, N-mono-alkyl substituted or N,N-dialkyl-substituted, are pigments useful for coloring plastics and especially lacquers. These compositions are preferably prepared by joint ring closure of the corresponding 2,5-dianilino-terephthalic acids or esters.

REFERENCES:
patent: 3741970 (1973-06-01), Fuchs
patent: 3749726 (1973-07-01), Fuchs et al.
patent: 3836379 (1974-09-01), Kirsch et al.

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