Invention Grant
- Patent Title: Process for production of thermoplastic copolymer
- Patent Title (中): 热塑性共聚物生产工艺
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Application No.: US12442343Application Date: 2007-09-13
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Publication No.: US07888456B2Publication Date: 2011-02-15
- Inventor: Daisuke Yamamoto , Ken Sudo , Hajime Takamura , Taro Yamashita , Koji Yamauchi , Hideki Matsumoto , Kenichi Utazaki
- Applicant: Daisuke Yamamoto , Ken Sudo , Hajime Takamura , Taro Yamashita , Koji Yamauchi , Hideki Matsumoto , Kenichi Utazaki
- Applicant Address: JP Tokyo
- Assignee: Toray Industries, Inc.
- Current Assignee: Toray Industries, Inc.
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2006-254967 20060920; JP2006-260391 20060926
- International Application: PCT/JP2007/067785 WO 20070913
- International Announcement: WO2008/035601 WO 20080327
- Main IPC: C08F6/00
- IPC: C08F6/00 ; C08G63/02
Abstract:
A process for continuously producing a thermoplastic copolymer, in which a copolymer (A) containing unsaturated carboxylic acid alkyl ester units and unsaturated carboxylic acid units is produced and in succession heat-treated to perform intramolecular cyclization reaction by dehydration and/or dealcoholization reaction, for producing a thermoplastic copolymer (B) containing glutaric anhydride units and the unsaturated carboxylic acid alkyl ester units. The obtained copolymer is excellent in heat resistance and colorless transparency and very small in foreign matter content.
Public/Granted literature
- US20100087605A1 PROCESS FOR PRODUCTION OF THERMOPLASTIC COPOLYMER Public/Granted day:2010-04-08
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