Coating processes – Particles – flakes – or granules coated or encapsulated – Inorganic base
Patent
1995-12-27
1997-02-11
Beck, Shrive
Coating processes
Particles, flakes, or granules coated or encapsulated
Inorganic base
427212, 427226, 4273977, B05D 700
Patent
active
056018746
ABSTRACT:
A method for making a moisture-resistant aluminum nitride-containing powder which includes (a) coating a layer of silicate onto aluminum nitride-containing powder having aluminum nitride on at least a portion of its surface and (b) heat-treating the coated aluminum nitride-containing powder at a temperature of from 350.degree. to 1000.degree. C. for a period of time sufficient to cause the silicate to react with the surface aluminum nitride thereby forming a layer of Si--Al--O--N bonded to the surface aluminum nitride. The silicate has alkyl or alkoxyalkyl radicals attached thereto. The method yields a moisture-resistant aluminum nitride-containing powder having a layer of Si--Al--O--N reaction-bonded to the surface aluminum nitride.
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Biskupski Scott J.
Carroll Daniel F.
Howard Kevin E.
Beck Shrive
Maiorana David M.
The Dow Chemical Company
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