Compositions: coating or plastic – Materials or ingredients – Pigment – filler – or aggregate compositions – e.g. – stone,...
Patent
1990-10-22
1992-10-06
Group, Karl
Compositions: coating or plastic
Materials or ingredients
Pigment, filler, or aggregate compositions, e.g., stone,...
106400, 106401, C09C 104, C04B 1436
Patent
active
051522292
ABSTRACT:
A pigment comprises a material comprising crystalline zinc selenide or selenosulphide below 40% of whose zinc atoms and optionally some of whose selenium and sulphur atoms are substituted to lower the band gap energy but retain the essential crystal lattice of the zinc selenide or silenosulphide, the resulting lattice containing a greater percentage of zinc atoms than of sulphur atoms. The material wherein at least 0.1% of the zinc atoms are substituted is a new composition of matter.
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Group Karl
Hertzog Scott L.
Johnson Matthey Public Limited Company
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