Compositions: coating or plastic – Materials or ingredients – Pigment – filler – or aggregate compositions – e.g. – stone,...
Patent
1994-11-21
1997-01-07
Bell, Mark L.
Compositions: coating or plastic
Materials or ingredients
Pigment, filler, or aggregate compositions, e.g., stone,...
106493, 106494, 106495, 546 49, C09B 4800
Patent
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.
Dietz Erwin
Urban Manfred
Bell Mark L.
Hertzog Scott L.
Hoechst Aktiengesellschaft
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