发明授权
- 专利标题： Method for producing polytetrafluoroethylene fine powder
- 专利标题（中）： 生产聚四氟乙烯细粉的方法
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申请号： US12891867申请日： 2010-09-28
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公开(公告)号： US07973127B2公开(公告)日： 2011-07-05
- 发明人: Shinya Higuchi , Yasuhiko Matsuoka , Shigeki Kobayashi
- 申请人： Shinya Higuchi , Yasuhiko Matsuoka , Shigeki Kobayashi
- 申请人地址： JP Tokyo
- 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： JP Tokyo
- 代理机构： Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 优先权： JP2008-104307 20080414
- 主分类号： C08G63/02
- IPC分类号： C08G63/02 ; C08G63/00
摘要：
The present invention provides a method for producing a polytetrafluoroethylene fine powder, which comprises emulsion polymerizing tetrafluoroethylene in the presence of an aqueous medium, a fluorinated surfactant and a radical polymerization initiator to produce an aqueous polytetrafluoroethylene emulsion, mixing and coagulating the aqueous emulsion to separate a polytetrafluoroethylene fine powder, and then drying the polytetrafluoroethylene fine powder in a wet state in an atmosphere containing ammonia.
公开/授权文献
- US20110021728A1 METHOD FOR PRODUCING POLYTETRAFLUOROETHYLENE FINE POWDER 公开/授权日：2011-01-27
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