Nano-sized dispersible powders and method of making
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United States of America Patent
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Mar 25, 2003
Grant Date -
Nov 21, 2002
app pub date -
Apr 11, 2001
filing date -
Apr 11, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A hydrophilic powder such as silica, adapted for dispersion in organic solvents and polymers, is provided with a coating over the outer surface of the powder particles to modify the surface characteristic from polar to non-polar or organophilic, whereby the thus coated powder is readily dispersible without agglomeration or enlargement of the powder particles. Preferred are nano-sized powders.
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