发明授权
- 专利标题: Method for preparation of tetrafluoroethylene/hexafluoropropylene copolymer
- 专利标题(中): 制备四氟乙烯/六氟丙烯共聚物的方法
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申请号: US211022申请日: 1994-03-17
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公开(公告)号: US5399643A公开(公告)日: 1995-03-21
- 发明人: Tomohisa Noda , Hiroyuki Honda , Chuzo Okuno
- 申请人: Tomohisa Noda , Hiroyuki Honda , Chuzo Okuno
- 申请人地址: JPX Osaka
- 专利权人: Diakin Industries Ltd.
- 当前专利权人: Diakin Industries Ltd.
- 当前专利权人地址: JPX Osaka
- 优先权: JPX4-195147 19920422
- 主分类号: C08F2/44
- IPC分类号: C08F2/44 ; C08F2/16 ; C08F4/28 ; C08F4/34 ; C08F214/18 ; C08F214/26 ; C08F4/32
摘要:
A method for preparing a tetrafluoroethylene/hexafluoropropylene copolymer by polymerizing tetrafluoroethylene and hexafluoropropylene in an aqueous medium using a di(fluoroacyl) peroxide as a polymerization initiator characterized in that a fluoroalkylcarboxylic acid is added gives a stable molecular weight of the tetrafluoroethylene/hexafluoropropylene copolymer and an increased utilization efficiency of the polymerization initiator.
公开/授权文献
- US4930836A Door assembly for pick-up trucks 公开/授权日:1990-06-05
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