发明名称 |
MICROPOROUS MEMBRANES AND METHODS FOR PRODUCING AND USING SUCH MEMBRANES |
摘要 |
A method of producing microporous membranes includes stretching a multi-layer layer extrudate having first and second layers, the first layer including a first polyolefin and a first diluent, and the second layer including a second polyolefin and a second diluent, the second polyolefin including polypropylene in an amount of 1.0 wt. % to 40.0 wt. %, the polypropylene having an Mw>0.9×106 and a &Dgr;Hm≧100.0 J/g; removing at least a portion of the diluents to produce a dried membrane having a first length and a first width; stretching the membrane by a first magnification factor of 1.1 to 1.5 and stretching the membrane by a second magnification factor of 1.1 to 1.3; and reducing the width. |
申请公布号 |
KR20110095268(A) |
申请公布日期 |
2011.08.24 |
申请号 |
KR20117011248 |
申请日期 |
2009.11.04 |
申请人 |
TORAY TONEN SPECIALTY SEPARATOR GODO KAISHA |
发明人 |
TAKITA KOTARO;MATSUDA YOICHI;SUZUKI SADAKATSU |
分类号 |
B01D69/02;B01D67/00;B01D71/26;H01M2/16 |
主分类号 |
B01D69/02 |
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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