Method for Forming a Liquid Crystalline Thermoplastic Composition
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United States of America Patent
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Issued Date -
May 16, 2013
app pub date -
Nov 13, 2012
filing date -
Nov 15, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method for forming a liquid crystalline thermoplastic composition is provided. The method comprises blending at least one thermotropic liquid crystalline polymer and a plurality of fibers within an extruder. The extruder contains at least one rotatable screw received within a barrel (e.g., cylindrical barrel) and defines a feed section and a melting section located downstream from the feed section along the length of the screw. Relatively long fibers are initially supplied to the feed section of the extruder, but at a location downstream from the liquid crystalline polymer so that the polymer is still in a solid state when it initially contacts the fibers. In this manner, the present inventors have discovered that the polymer can act as an abrasive agent for reducing the length of the fibers.
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