Boron nitride particles of spherical geometry and process...

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Reexamination Certificate

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C424S489000, C424S490000, C424S496000, C424S497000, C424S500000, C424S657000, C428S323000, C428S402000, C264S013000, C423S278000, C423S290000, C516S033000, C516S078000, C524S404000

Reexamination Certificate

active

07976941

ABSTRACT:
A low viscosity filler boron nitride agglomerate particles having a generally spherical shape bound together by an organic binder and to a process for producing a BN powder composition of spherically shaped boron nitride agglomerated particles having a treated surface layer which controls its viscosity.

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