Surface treated ceramic powders
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United States of America Patent
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Sep 20, 1994
Grant Date -
N/A
app pub date -
Oct 12, 1993
filing date -
Oct 12, 1993
priority date (Note) -
Expired
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Abstract
A method of reducing the agglomeration of ceramic powder materials, the method comprising: (a) providing a ceramic powder comprising ceramic particles; (b) coating the ceramic particles with a solution containing from 0.05-0.5 wt. % of a polysiloxanol oligomer of a trialkoxysiloxane monomer having the structure Si(OR').sub.3 wherein R' represents a lower C.sub.1 -C.sub.4 alkoxy group selected from the group consisting of methoxy, ethoxy, isopropoxy and n-butoxy and wherein the oligomer has chains having a number average distribution with a number average degree of polymerization X.sub.n in the range above 2 but below that near the gel point; and (c) drying the ceramic powder.
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