发明名称 |
POLYTETRAFLUOROETHYLENE POROUS FILM |
摘要 |
<p>A polytetrafluoroethylene porous film, which is prepared by stretching a semisintered polytetrafluoroethylene material and heating the stretched material at a temperature higher than the melting point of sintered polytetrafluoroethylene, has an area ratio of fibrils to nodes of from 99:1 to 75:25, an average fibril diameter of from 0.05 to 0.2 mu m, a largest node area of not larger than 2 mu m<2> and an average pore size of from 0.2 to 0.5 mu m and achieves low pressure loss.</p> |
申请公布号 |
KR100258485(B1) |
申请公布日期 |
2000.06.15 |
申请号 |
KR19920013185 |
申请日期 |
1992.07.23 |
申请人 |
DAIKIN INDUSTRIES, LTD. |
发明人 |
TAMARU, SHINJI;TANAKA, OSAMU;NISHIBAYASHI, HIROFUMI;INOUE, OSAMU;YAMAMOTO, KATSUTOSHI;KUSUMI, TOSHIO |
分类号 |
C08J9/24;B01D39/16;B01D50/00;B01D67/00;B01D71/36;B29C55/00;C08J5/18;(IPC1-7):C08J5/18 |
主分类号 |
C08J9/24 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|