Compositions: coating or plastic – Materials or ingredients – Pigment – filler – or aggregate compositions – e.g. – stone,...
Patent
1992-08-07
1993-04-20
Bell, Mark L.
Compositions: coating or plastic
Materials or ingredients
Pigment, filler, or aggregate compositions, e.g., stone,...
1621818, C04B 1404
Patent
active
052039188
ABSTRACT:
A method for forming an aggregated kaolin clay pigment, comprising: preparing an aqueous 6-30% solids slurry of a fine particle size feed kaolin; intermixing with said slurry from about 10 to 20% of alum, by weight of the dry kaolin; adding to the mix of step (b) from about 15 to 30% of sodium silicate, by weight of the dry kaolin; mixing the reactants of step (c); and filtering and drying the slurry to recover aggregates of adherent platelets.
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Sax, N. Irving et al. "Hawley's Condensed Chemical Dictionary" 1987, p. 49.
Bell Mark L.
ECC America Inc.
Marcantoni Paul
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