发明公开
EP2272877A1 METHOD FOR PRODUCING FLUORINE-CONTAINING POLYMER AND FLUORINE-CONTAINING ION EXCHANGE MEMBRANE
有权
VERFAHREN ZUR HERSTELLUNG EINES荧光聚合物SOWIE FLUORHALTIGE IONENAUSTAUSCHMEMBRAN
- 专利标题： METHOD FOR PRODUCING FLUORINE-CONTAINING POLYMER AND FLUORINE-CONTAINING ION EXCHANGE MEMBRANE
- 专利标题（中）： VERFAHREN ZUR HERSTELLUNG EINES荧光聚合物SOWIE FLUORHALTIGE IONENAUSTAUSCHMEMBRAN
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申请号： EP09738839.1申请日： 2009-04-28
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公开(公告)号： EP2272877A1公开(公告)日： 2011-01-12
- 发明人: TOMITA, Toshinori , NOMURA, Jumpei , SAITO, Junji , MATSUOKA, Yasuhiko , UMEMURA, Kazuo
- 申请人： Asahi Glass Company, Limited
- 申请人地址： 12-1 Yurakucho 1-chome Chiyoda-ku Tokyo 100-8405 JP
- 专利权人： Asahi Glass Company, Limited
- 当前专利权人： Asahi Glass Company, Limited
- 当前专利权人地址： 12-1 Yurakucho 1-chome Chiyoda-ku Tokyo 100-8405 JP
- 代理机构： Hock, Joachim
- 优先权： JP2008117372 20080428
- 国际公布： WO2009133902 20091105
- 主分类号： C08F2/14
- IPC分类号： C08F2/14 ; C08F214/18
摘要：
A polymerization medium having small ozone depletion potential and small global warming potential and having a small chain transfer constant is used, to efficiently produce a fluoropolymer having a high molecular weight and having excellent heat resistance, solvent resistance, chemical resistance, etc.
A process for producing a fluoropolymer, which comprises polymerizing a fluoromonomer having a carboxylic acid type functional group and a fluoroolefin using a hydrofluorocarbon as a medium, wherein the hydrofluorocarbon as the medium has 4 to 10 carbon atoms and has a ratio (molar basis) of the number of hydrogen atoms/the number of fluorine atoms (H/F ratio) of from 0.05 to 20.
A process for producing a fluoropolymer, which comprises polymerizing a fluoromonomer having a carboxylic acid type functional group and a fluoroolefin using a hydrofluorocarbon as a medium, wherein the hydrofluorocarbon as the medium has 4 to 10 carbon atoms and has a ratio (molar basis) of the number of hydrogen atoms/the number of fluorine atoms (H/F ratio) of from 0.05 to 20.
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