发明申请
- 专利标题： METHOD FOR PRODUCING MICROPOROUS POLYOLEFIN MEMBRANE AND MICROPOROUS MEMBRANE
- 专利标题（中）： 生产微孔多孔膜和微孔膜的方法
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申请号： US11909936申请日： 2006-03-28
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公开(公告)号： US20090008816A1公开(公告)日： 2009-01-08
- 发明人: Kotaro Takita , Kazuhiro Yamada , Norimitsu Kaimai , Teiji Nakamura , Koichi Kono
- 申请人： Kotaro Takita , Kazuhiro Yamada , Norimitsu Kaimai , Teiji Nakamura , Koichi Kono
- 申请人地址： JP Tokyo
- 专利权人： TONEN CHEMICAL CORPORATION
- 当前专利权人： TONEN CHEMICAL CORPORATION
- 当前专利权人地址： JP Tokyo
- 优先权： JP2005-095649 20050329
- 国际申请： PCT/JP2006/306345 WO 20060328
- 主分类号： C08J9/00
- IPC分类号： C08J9/00 ; B29C55/02
摘要：
A microporous polyolefin membrane having excellent compression resistance is obtained by stretching a gel molding comprising a polyolefin and a membrane-forming solvent, removing the membrane-forming solvent, and stretching the resultant membrane again at least uniaxially at a speed of 3%/second or more at a temperature equal to or lower than the crystal dispersion temperature +20° C.
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