发明名称 |
Polymetaphenylene isophthalamide-based polymer porous film, process for its production and battery separator |
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.
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申请公布号 |
US7407702(B2) |
申请公布日期 |
2008.08.05 |
申请号 |
US20040776184 |
申请日期 |
2004.02.12 |
申请人 |
TEIJIN LIMITED |
发明人 |
OHNO TAKAO;SADANOBU JIRO;NAKAMURA TSUTOMU;HONDA SUSUMU;ISHIWATA TOYOAKI |
分类号 |
B32B5/22;B01D39/14;B01D67/00;B01D69/02;B01D69/14;B01D71/56;B05D1/22;B32B27/08;C08J5/18;C08J9/28;H01M2/16 |
主分类号 |
B32B5/22 |
代理机构 |
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代理人 |
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主权项 |
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