发明授权
- 专利标题： Method for spherizing granular polyetrafluoroethylene powder
- 专利标题（中）： 球状聚四氟乙烯粉末的方法
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申请号： US09509875申请日： 2000-04-03
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公开(公告)号： US06413451B1公开(公告)日： 2002-07-02
- 发明人: Kazuya Kawahara , Michio Asano
- 申请人： Kazuya Kawahara , Michio Asano
- 优先权： JP9-271634 19971003
- 主分类号： B29C6700
- IPC分类号： B29C6700
摘要：
To provide a method of shaping a granular polytetrafluoroethylene powder, in which a powder flowability can be enhanced and an apparent density can be increased without substantially changing an average particle size and particle size distribution of the powder. The granular polytetrafluoroethylene powder having an average particle size of 100 to 800 &mgr;m is subjected to shaping by using a rotating-type stirring vessel with two cross axes.
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