Solid state shear extrusion pulverization
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United States of America Patent
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Mar 14, 1995
Issued Date -
N/A
app pub date -
Oct 28, 1993
filing date -
Nov 3, 1992
priority date (Note) -
Expired
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Abstract
A process and apparatus for pulverization of natural and synthetic polymeric material by heating to a pre-melt or softening temperature below its melting point, cooling and applying normal and shear stresses sufficient to form fine powder, and fluidizing the powder in a gas stream preventing its agglomeration. The same process and apparatus is suitable for enhancement of reactivity of polymeric and solid monomeric material to form homopolymers, copolymers, and new polymeric materials.
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