Compositions: coating or plastic – Materials or ingredients – Pigment – filler – or aggregate compositions – e.g. – stone,...
Patent
1993-06-18
1994-03-22
Bell, Mark L.
Compositions: coating or plastic
Materials or ingredients
Pigment, filler, or aggregate compositions, e.g., stone,...
106410, 106411, 106413, 540122, 540139, 540144, C09B 6750
Patent
active
052960340
ABSTRACT:
Copper phthalocyanine pigments and pigment preparations in the .alpha. phase are prepared with phase conversion from copper phthalocyanine crude pigments of the .beta. phase in an environmentally safe and economical manner by
REFERENCES:
patent: 2284685 (1942-06-01), Detrick et al.
patent: 4056534 (1977-11-01), Schiessler et al.
patent: 5062577 (1991-11-01), Schmitt et al.
Dietz Erwin
Urban Manfred
Bell Mark L.
Hertzog Scott L.
Hoechst Aktiengesellschaft
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