发明名称 |
PROCESS FOR PRODUCTION OF POLYTETRAFLUOROETHYLENE MOLDING USING LUBRICANT, BELT-PRESS DEHYDRATOR, PROCESS FOR DEHYDRATION OF SOLID WET MATTERS |
摘要 |
A process for production of a polytetrafluoroethylene (PTFE) molding comprising the step of adding a lubricant to an aqueous dispersion of PTFE to co-coagulate PTFE and a swelling agent and obtain a lubricant-containing wet PTFE powder, the step of molding the wet powder to obtain a molding, and the step of removing the lubricant from the molding. This process can reduce the number of the process steps. Further, the present invention provides a process and apparatus for dehydrating a solid wet matter characterized in that a difference is provided between the travelling speeds of a pair of filter cloth belts clamping the solid wet matter, and at least one of the belts is oscillated in the transverse direction of the belt.
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申请公布号 |
WO9523178(A1) |
申请公布日期 |
1995.08.31 |
申请号 |
WO1995JP00256 |
申请日期 |
1995.02.22 |
申请人 |
DAIKIN INDUSTRIES, LTD.;MURAKAMI, SHINJI;UCHIDA, TATSURO;KAWACHI, SHOJI |
发明人 |
MURAKAMI, SHINJI;UCHIDA, TATSURO;KAWACHI, SHOJI |
分类号 |
C08J5/00;B01D17/00;B01D33/03;B01D33/04;B29C43/22;B29C67/00;B30B9/24;C08J3/16;C08J3/21;(IPC1-7):C08J5/00;B01D35/20 |
主分类号 |
C08J5/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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