发明授权
- 专利标题： Process for producing fatty acid-terminated polycarbonate resin
- 专利标题（中）： 生产脂肪酸封端聚碳酸酯树脂的方法
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申请号： US246574申请日： 1988-09-12
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公开(公告)号： US4939231A公开(公告)日： 1990-07-03
- 发明人: Mituhiko Masumoto , Toshiaki Takata , Satoshi Kanayama
- 申请人： Mituhiko Masumoto , Toshiaki Takata , Satoshi Kanayama
- 申请人地址： JPX Tokyo
- 专利权人： Mitsubishi Gas Chemical Company, Inc.
- 当前专利权人： Mitsubishi Gas Chemical Company, Inc.
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX62-226490 19870911
- 主分类号： C08G64/00
- IPC分类号： C08G64/00 ; C08G64/14 ; C08G64/16 ; C08G64/20 ; C08G64/22
摘要：
A process for producing a polycarbonate resin having excellent heat stability from a dihydric phenol compound represented by the formula (1) shown below by an interfacial polymerization method wherein fatty acid represented by the formula (2), (3), (4) or (5) shown below is used as a terminator and as a polymerization catalyst, a quaternary ammonium salt is used, and after 5 to 40 minutes from the addition and emulsification of the polymerization catalyst, tertiary amine is added to cause polymerization. ##STR1## wherein all the symbols are the same as defined before.