Process for conditioning isoindoline pigments

Details Process for conditioning isoindoline pigments Process for conditioning isoindoline pigments

1986-07-07

1989-07-04

Daus, Donald G.

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

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

106401, 544252, 544296, 544300, C09B 5704

Patent

active

048452149

ABSTRACT:
Isoindoline pigments are conditioned by means of a heat treatment of the pigment in a mixture of water and benzenemonocarboxylic and/or benzenedicarboxylic acids.
Well crystallized, very weatherfast pigmentary forms which give colorations possessing improved purity of shade are obtained.

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Sumitomo Chemical Co. Ltd. Chemical Abstract 95-171106R.
Kranz; CA 19997j, eq. DE3442118.
Lerner et al., CA96-87026s (1982).
Lotsch et al., CA102-168366x.

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