发明名称 |
POROUS COMPOSITE MEMBRANE MANUFACTURING METHOD USING FLOWING COAGULATING SOLUTION |
摘要 |
Disclosed is a method for manufacturing a composite porous film having a stable film quality and a desired hollow shape by controlling the entrance of a film-forming resin solution into a hollow part of a hollow reinforcement support. The method is provided with a step of adhering a film-forming resin solution to the outer peripheral surface of the hollow reinforcement support and thereby forming a film intermediate, a step of adhering a coagulating liquid to the outer peripheral surface of the film intermediate, and a step of flowing the coagulating liquid along the outer peripheral surface of the film intermediate so that at least a part of the outermost interface of the coagulating liquid in the circumferential direction is a free surface and thereby coagulating the film-forming resin solution adhering to the outer peripheral surface of the hollow reinforcement support. |
申请公布号 |
CA2759693(C) |
申请公布日期 |
2015.10.20 |
申请号 |
CA20102759693 |
申请日期 |
2010.04.23 |
申请人 |
MITSUBISHI RAYON CO., LTD. |
发明人 |
FUJIKI, HIROYUKI;SUMI, TOSHINORI;HIROMOTO, YASUO;KURASHINA, MASAKI |
分类号 |
B01D69/12;B01D69/08;B01D69/10 |
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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