Compositions: coating or plastic – Materials or ingredients – Pigment – filler – or aggregate compositions – e.g. – stone,...
Patent
1992-03-12
1993-10-12
Bell, Mark L.
Compositions: coating or plastic
Materials or ingredients
Pigment, filler, or aggregate compositions, e.g., stone,...
106454, 106456, 106457, 106480, 106903, C08K 310, C09C 134
Patent
active
052521257
ABSTRACT:
Inclusion pigments are disclosed based on zirconium silicate as a casing component and cobalt-free spinels as discrete, included colored compounds. The inclusion pigments are prepared by fusing a mixture of a zirconium dioxide source, a silicon dioxide source, one or more mineralizer and cobalt-free oxides in a ratio suitable for spinel-formation. The inclusion pigments have high enamel-fastness and high color-fastness. Further, the pigments are drain-resistant under usual decoration firing conditions.
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J. Rotsche, "Kermische Farkoerper auf der Basis von Zirkoniumsilikat," Silikattechnik, vol. 37 1986, pp. 350-352.
European Search Report dated Feb. 5, 1993.
Kiss Akos
Kleinschmit Peter
Speer Dietrich
Zell Christel
Bell Mark L.
Degussa - Aktiengesellschaft
Marcheschi Michael A.
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