发明授权
- 专利标题： Process for preparing modified porous membrane
- 专利标题（中）： 制备改性多孔膜的方法
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申请号： US623650申请日： 1990-12-11
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公开(公告)号： US5273657A公开(公告)日： 1993-12-28
- 发明人: Naoki Nakashima , Tadaaki Miyano , Motoshi Ishikura , Yoshihide Ozawa
- 申请人： Naoki Nakashima , Tadaaki Miyano , Motoshi Ishikura , Yoshihide Ozawa
- 申请人地址： JPX
- 专利权人： Daicel Chemical Industries, Ltd.
- 当前专利权人： Daicel Chemical Industries, Ltd.
- 当前专利权人地址： JPX
- 优先权： JPX1-98551 19890418; JPX1-112437 19890501; JPX1-116817 19890510; JPX1-116818 19890510; JPX1-169190 19890630; JPX1-169191 19890630; JPX1-310344 19891129; JPX1-310345 19891129
- 主分类号： B01D71/66
- IPC分类号： B01D71/66 ; C08J7/12 ; B01D71/68
摘要：
A modified porous membrane can be prepared by dissolving an aromatic polymer having a thioether group in an organic solvent, forming membrane of the aromatic polymer from the resultant solution by phase conversion and oxidizing the formed membrane. This modified porous membrane can effectively be utilized in a filtration method wherein ultrafiltration, reverse osmosis, fine filtration, gas separation, vapor permeation or pervaporation is conducted.
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