Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
September 29, 2009
Patent Application Number
11845823
Date Filed
August 28, 2007
Patent Primary Examiner
Patent abstract
Capped poly(arylene ether)s are prepared by a method that includes reacting a poly(arylene ether) with a capping agent to form a capping reaction mixture, washing the capping reaction mixture with a concentrated basic aqueous solution, and isolating the capped poly(arylene ether) by a total isolation method. The washing method is effective for removal of capping-related impurities, and surprisingly does not result in decomposition of the capped poly(arylene ether).
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