发明名称 |
MULTILAYER MICROPOROUS MEMBRANE, METHOD FOR PRODUCING SAME AND BATTERY SEPARATOR |
摘要 |
There is provided a laminated microporous film having an excellent balance between air permeability and film rupture temperature obtained by laminating a first microporous layer comprising a first resin composition and a second microporous layer comprising a second resin composition having a lower melting point than the first resin composition, wherein the first microporous layer has a melt viscosity · A of 10,000 Pa·s or higher, and a ratio · A /· B of the melt viscosity · A to a melt viscosity · B of the second microporous layer is 0.01 to 10. |
申请公布号 |
EP2308674(B1) |
申请公布日期 |
2013.09.11 |
申请号 |
EP20090803038 |
申请日期 |
2009.07.31 |
申请人 |
ASAHI KASEI E-MATERIALS CORPORATION |
发明人 |
MANAGO, TERUAKI;AZAMI, YOKO |
分类号 |
B32B5/32;H01M2/16 |
主分类号 |
B32B5/32 |
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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