Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
David T. Williamson0
Date of Patent
March 17, 2009
0Patent Application Number
112924570
Date Filed
December 2, 2005
0Patent Citations Received
Patent Primary Examiner
Patent abstract
This invention concerns a process for the preparation of semicrystalline polycarbonate compositions by synthesizing the polycarbonate in the presence of a sepiolite-type clay as a nucleating agent. The semicrystalline compositions produced are useful as starting materials for the production of high molecular weight polycarbonate by solid state polymerization.
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