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US 4,302,413 AGranted
Process for preparing extrudable polyimide granules
AssigneeRogers Corporation
InventorsDavid M. Howe, Jeffrey B. Otto, Richard T. Traskos
Life of this patent
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Abstract
A process for the preparation of extrudable polyimide granules comprising heating and compacting a powder containing polyimide particles to form a partially densified porous mass and crushing the mass to form granules which may be ram extruded to give uniform articles of high strength.
Claims14
A method of making aromatic heterocyclic polymer granules particularly useful in continuous processes such as extrusion, the method comprising:
- heating and compacting a powder comprising aromatic heterocyclic polymer particles to form a mass;
- and
- dividing said mass to form granules of polymer.
Dependencies are inferred from the claim text.