Compositions: coating or plastic – Materials or ingredients – Pigment – filler – or aggregate compositions – e.g. – stone,...
Patent
1998-06-08
1999-12-07
Green, Anthony
Compositions: coating or plastic
Materials or ingredients
Pigment, filler, or aggregate compositions, e.g., stone,...
106 315, 524 92, 524106, 524190, 534728, 534780, 534DIG4, C09B 6300, C09B 6720
Patent
active
059976284
ABSTRACT:
Disclosed are red shade yellow compositions characterized by the formula: ##STR1## wherein X is a lower alkyl or a --COOR.sub.1 group; wherein R.sub.1 is a hydrogen or lower alkyl group; each Y is independently a lower alkyl, lower alkyloxy or halogen group; a is 0, 1, or 2; and M is a divalent metal. Also disclosed is a process for preparing red shade yellow pigment compositions prepared by initially a diazonium component comprised of one or more aromatic amines wherein at least one of said amines is a 1-sulfo-2-naphthylamine; and thereafter coupling the diazonium component with a coupling component comprised of a pyrazolone coupler to form a dye, and metallizing said dye with at least one divalent metal.
REFERENCES:
patent: 4594411 (1986-06-01), Henning
patent: 5047517 (1991-09-01), Deucker
patent: 5084106 (1992-01-01), Kobayashi et al.
patent: 5457188 (1995-10-01), Zimmermann
patent: 5744590 (1998-04-01), Chorlton et al.
Engelhard Corporation
Green Anthony
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