发明名称 |
Porous membrane. |
摘要 |
<p>Disclosed is a porous membrane consisting of a film-forming polymer characterized in that: (a) in at least one surface thereof, pores extending in a direction substantially perpendicular to the membrane surface are present at a surface pore density of 20 to 80%, said pores having an average pore diameter within the range of 0.01 to 100 mu m, a ratio of major to minor axis within the range of 1.0 to 2.0, and a coefficient of variation of pore diameter within the range of 0 to 50%; and (b) the overall porosity of said porous membrane is within the range of 20 to 90%.</p> |
申请公布号 |
EP0247596(A2) |
申请公布日期 |
1987.12.02 |
申请号 |
EP19870107735 |
申请日期 |
1987.05.27 |
申请人 |
MITSUBISHI RAYON CO. LTD. |
发明人 |
ITOH, HAJIME;TAKAHASHI, HIROSHI;OHBORI, KOUJI;HABARA, HIDEAKI |
分类号 |
B01D53/22;B01D67/00;B01D69/02;B01D69/06;B01D71/28;B01D71/40;B01D71/42;B01D71/52;C08J9/00;C08J9/36 |
主分类号 |
B01D53/22 |
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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