PROCESS FOR PRODUCING AQUEOUS DISPERSION CONTAINING POLYTETRAFLUOROETHYLENE

申请公布号：WO9943723(A1)

申请号：WO1999JP00930

申请日期：1999.02.26

申请公布日期：1999.09.02

申请人：

ASAHI GLASS COMPANY LTD.;KAMIYA, HIROKI;KASHIWAGI, KIMIAKI

发明人：KAMIYA, HIROKI;KASHIWAGI, KIMIAKI

分类号：C08J3/03;B01D71/36;B29C47/00;B29C67/20;B29K27/18;B29K105/04;C08F2/24;C08F2/26;C08F14/26;C08F114/00;C08F114/26;C08J3/12;C08J3/16;C08J9/00;(IPC1-7):C08F14/26

主分类号：C08J3/03

摘要：A process for producing an aqueous dispersion of polytetrafluoroethylene (PTFE) in which C9F19COONH4 or the like is used as a surfactant. The dispersion is coagulated to obtain a fine PTFE powder, which is subjected to paste extrusion. The extrudate is stretched at 250 DEG C or higher to obtain a porous object.

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