发明名称 |
Porous material of polytetrafluoroethylene and process for producing the same. |
摘要 |
<p>A porous material of polytetrafluoroethylene consisting essentially of fibers of polytetrafluoroethylene. The porous material of PTFE is produced by heat-treating a molded article prepared by paste extruding of PTFE fine powder under such a condition that the heat-treated molded article shows at least one endothermic peak which appears between an endothermic peak position of the fine powder and an endothermic peak position of a sintered product thereof on a differential scanning calorimeter chart and then is stretched along at least one direction.</p> |
申请公布号 |
EP0418155(A2) |
申请公布日期 |
1991.03.20 |
申请号 |
EP19900402512 |
申请日期 |
1990.09.12 |
申请人 |
SUMITOMO ELECTRIC INDUSTRIES, LTD. |
发明人 |
HARADA, AKIRA, C/O KUMATORI WORKS OF;MANO, HIROSHI, C/O OSAKA WORKS OF |
分类号 |
B01D71/36;B29C55/00;C08J5/18 |
主分类号 |
B01D71/36 |
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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