Preparation of linear, unsubstituted quinacridone pigments of th

Compositions: coating or plastic – Materials or ingredients – Pigment – filler – or aggregate compositions – e.g. – stone,...

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106493, 106494, 106495, 546 49, C09B 4800

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active

055912583

ABSTRACT:
Linear, unsubstituted quinacridone pigments of the .beta.-phase can be produced in an environmentally friendly manner by

REFERENCES:
patent: 2844485 (1958-07-01), Struve
patent: 3257405 (1966-06-01), Gerson et al.
patent: 4857646 (1989-08-01), Jaffe
patent: 5229515 (1993-07-01), Pfenninger
European Search Report No. 94118127, dated Jun. 6, 1995.

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