发明授权
- 专利标题： Continuous process for preparing polytetrafluoroethylene wet powder
- 专利标题（中）： 连续制备聚四氟乙烯湿粉
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申请号： US134851申请日： 1993-10-12
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公开(公告)号： US5977295A公开(公告)日： 1999-11-02
- 发明人: Tetsuya Higuchi , Shunichi Nomura , Shigeru Ichiba , Hiroshi Yamaguchi , Masaomi Goromaru , Akira Watanabe , Kazuhiro Takeda , Mikio Morita , Kazuhisa Fujita , Yasuyuki Moriyama
- 申请人： Tetsuya Higuchi , Shunichi Nomura , Shigeru Ichiba , Hiroshi Yamaguchi , Masaomi Goromaru , Akira Watanabe , Kazuhiro Takeda , Mikio Morita , Kazuhisa Fujita , Yasuyuki Moriyama
- 申请人地址： JPX Osaka
- 专利权人： Daikin Industries, Ltd
- 当前专利权人： Daikin Industries, Ltd
- 当前专利权人地址： JPX Osaka
- 主分类号： C08J3/16
- IPC分类号： C08J3/16 ; C08F6/14 ; C08J3/05
摘要：
A process for continuously preparing a wet powder of PTFE, comprising the step of continuously slurrying a PTFE aqueous dispersion with a high shear machine having a rotating element, and the step of continuously granulating the slurry by using vertical agitator. The process can be carried out for a long time without trouble, and can continuously provide a dry powder having good powder properties. The powder properties can be controlled by regulating operation conditions.
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