发明授权
US07407702B2 Polymetaphenylene isophthalamide-based polymer porous film, process for its production and battery separator
失效
聚邻苯二甲酰间苯二胺基聚合物多孔膜，其生产工艺及电池隔膜
- 专利标题： Polymetaphenylene isophthalamide-based polymer porous film, process for its production and battery separator
- 专利标题（中）： 聚邻苯二甲酰间苯二胺基聚合物多孔膜，其生产工艺及电池隔膜
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申请号： US10776184申请日： 2004-02-12
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公开(公告)号： US07407702B2公开(公告)日： 2008-08-05
- 发明人: Takao Ohno , Jiro Sadanobu , Tsutomu Nakamura , Susumu Honda , Toyoaki Ishiwata
- 申请人： Takao Ohno , Jiro Sadanobu , Tsutomu Nakamura , Susumu Honda , Toyoaki Ishiwata
- 申请人地址： JP Osaka
- 专利权人： Teijin Limited
- 当前专利权人： Teijin Limited
- 当前专利权人地址： JP Osaka
- 代理机构： Sughrue Mion, PLLC
- 优先权： JP11-258734 19990913; JP11-258735 19990913; JP2000-33188 20000210; JP2000-140086 20000512; JP2000-182973 20000619
- 主分类号： B32B5/22
- IPC分类号： B32B5/22 ; B01D39/14 ; B05D1/22
摘要：
A polymetaphenylene isophthalamide-based polymer porous film having a satisfactory porous structure that exhibits excellent gas permeability and heat resistance. It is produced by a process which comprises casting a dope of the polymetaphenylene isophthalamide-based polymer and coagulating it in a coagulating bath. The porous film may also contain inorganic whiskers, and a composite porous film may be formed in combination with a separate thermoplastic polymer film.