Compositions: coating or plastic – Materials or ingredients – Pigment – filler – or aggregate compositions – e.g. – stone,...
Patent
1997-06-06
1999-10-19
Green, Anthony
Compositions: coating or plastic
Materials or ingredients
Pigment, filler, or aggregate compositions, e.g., stone,...
106484, 204490, 204499, 205 50, 205320, 205323, 205333, 428457, 428454, 428689, C09D 544, C09C 142
Patent
active
059682507
ABSTRACT:
Disclosed are kaolin compositions of at least one hydrous kaolin characterized by a particle size distribution where 98% of the particles are less than about 2.mu., 90% are less than about 0.5.mu. and the median particle size is less than about 0.3.mu.. Also disclosed is a process which involves the steps (i) preparing an aqueous slurry of at least one hydrous kaolin; (ii) separating the particles from said slurry so that the particle size distribution is such that 98% of the particles are less than about 2.mu., 90% are less than about 0.5.mu. and a median particle size is less than about 0.3.mu.; and (iii) drying said separated particles. Pigment pastes and electrodeposition paints containing said compositions as well as cationic electrodeposition of said paint on a substrate and the article of manufacture prepared thereby are disclosed.
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International Search Report for PCT Application No. PCT/US98/08966 mailed Aug. 20, 1998.
Gruber Karen Ann
Sheppard, Jr. Robert Reynolds
Engelhard Corporation
Green Anthony
Keller Raymond F.
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