Original document(12 pages) Authorized document(12 pages) 中文版
    A process for production of polycarbonate improved in heat resistance, characterized by removing an aqueous phase from a polymerization fluid obtained by interfacial polymerization of a raw material comprising phosgene and a dihydric phenol as the main components and then adding a specified amount of an aryl chloroformate having a phosgene content of 150 ppm or below to the resulting organic phase to convert the terminal phenolic hydroxyl groups into aryl carbonate groups.
Application Number
申请号		 01802600 Application Date
申请日		 2001.09.03
Title 名称 Process for production of polycarbonate
Publication Number
公开号		 1388812 Publication Date
公开日		 2003.01.01
Approval Pub. Date 2005.03.02 Granted Pub. Date 2005.03.02
International Classification 分类号 C08G64/42
Applicant(s) Name
申请人		 Idemitsu Petrochemical Co., Ltd.
Address 地址
Inventor(s) Name 发明人 Ishikawa Yasuhiro;Yasuda Toshiyuki
Attorney & Agent 代理人 wei jinxi tai gong
More information 更  多  信  息


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