Compositions: coating or plastic – Materials or ingredients – Pigment – filler – or aggregate compositions – e.g. – stone,...
Patent
1997-02-14
1998-02-10
Bell, Mark L.
Compositions: coating or plastic
Materials or ingredients
Pigment, filler, or aggregate compositions, e.g., stone,...
106493, C09B 2700
Patent
active
057164452
ABSTRACT:
The present invention provides a novel polymorphic form of Colour Index Pigment Yellow 12 in a crystalline form which exhibits an X-ray diffraction pattern having three prominent X-ray diffraction lines corresponding to "d" spacings of 11.82, 7.71 and 3.32.times.10.sup.-10 meters.
REFERENCES:
patent: 4515639 (1985-05-01), Dopfer et al.
patent: 5062894 (1991-11-01), Schwartz et al.
patent: 5382288 (1995-01-01), Schenk et al.
patent: 5575843 (1996-11-01), Krishnan et al.
Derwent Abst. 87-230845/33 (Jul. 1987) of JP62-153353.
Farnocchi Carol Jean
McKay Robert Bruce
Stirling John Andrew
Tuck Brian
Bell Mark L.
Ciba Specialty Chemicals Corporation
Hertzog Scott L.
Mansfield Kevin T.
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