发明名称 |
CRYSTALLINE-POLYMER MICROPOROUS MEMBRANE, PROCESS FOR PRODUCING SAME, AND FILTER FOR FILTRATION |
摘要 |
<p>To provide a crystalline polymer microporous membrane, which contains a laminate containing two or more layers and a plurality of pores piercing through the laminate in a thickness direction thereof, where the two or more layers include a layer containing a first crystalline polymer, and a layer containing a second crystalline polymer stacked to form the laminate, wherein the first crystalline polymer has a higher melting point than a melting point of the second crystalline polymer, wherein at least the layer containing the second crystalline polymer in the laminate has a microstructure containing at least fibrils having an average long axial length of 1 µm or shorter, and wherein at least one of the layers constituting the laminate has a plurality of pores whose average pore diameter is constant without any variation at least at part along a thickness direction of the laminate.</p> |
申请公布号 |
EP2578302(A1) |
申请公布日期 |
2013.04.10 |
申请号 |
EP20110789554 |
申请日期 |
2011.04.20 |
申请人 |
FUJIFILM CORPORATION |
发明人 |
ISHIZUKA, KENICHI;NISHITA, NOBUHIRO |
分类号 |
B01D69/12;B01D71/32;B01D71/36 |
主分类号 |
B01D69/12 |
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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