发明申请
- 专利标题： Microporous composite membrane and its producing method and use
- 专利标题（中）： 微孔复合膜及其制备方法和用途
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申请号： US10596171申请日： 2004-12-02
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公开(公告)号： US20070128512A1公开(公告)日： 2007-06-07
- 发明人: Norimitsu Kaimai , Shigeaki Kobayashi , Kotaro Kimishima , Sadakatsu Suzuki , Satoshi Ueki , Kazuhiro Yamada
- 申请人： Norimitsu Kaimai , Shigeaki Kobayashi , Kotaro Kimishima , Sadakatsu Suzuki , Satoshi Ueki , Kazuhiro Yamada
- 优先权： JP2003-404996 20031203
- 国际申请： PCT/JP04/17935 WO 20041202
- 主分类号： H01M2/16
- IPC分类号： H01M2/16 ; H01M2/18 ; B32B27/08
摘要：
A microporous composite membrane comprising a microporous polyolefin membrane and a polypropylene-based coating layer formed on at least one surface of the microporous polyolefin membrane, the polypropylene having a mass-average molecular weight within a range of 5,000-500,000, and solubility of 0.5 g or more in 100 g of toluene at a temperature of 25° C., and the microporous composite membrane having air permeability (converted to the value at 25-μm thickness) of 50-10,000 seconds/100 cc.
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