发明名称 |
MULTILAYERED CHARGE-MOSAIC MEMBRANE AND MANUFACTURING METHOD THEREFOR |
摘要 |
There is provided a multilayered charge-mosaic membrane having a porous supporting layer (A), a porous intermediate layer (B) and a charge-mosaic layer (C), wherein the porous supporting layer (A), the porous intermediate layer (B) and the charge-mosaic layer (C) are located in this order; the porous supporting layer (A) and/or the porous intermediate layer (B) are made of a fiber layer containing hydrophilic fibers; a thickness of the porous intermediate layer (B) is 0.1 to 100 µm; a porosity of the porous supporting layer (A) is larger than a porosity of the porous intermediate layer (B); the cationic and/or the anionic polymers constituting the charge-mosaic layer (C) is a polyvinyl alcohol having an ionic group. Thus, there is provided a multilayered charge-mosaic membrane having a large salt permeation flux and excellent mechanical strength. |
申请公布号 |
EP2520357(A1) |
申请公布日期 |
2012.11.07 |
申请号 |
EP20100841001 |
申请日期 |
2010.12.27 |
申请人 |
KURARAY CO., LTD.;YAMAGUCHI UNIVERSITY |
发明人 |
JIKIHARA, ATSUSHI;KOBAYASHI, KENICHI;HIGA, MITSURU |
分类号 |
B01D69/12;B01D69/02;B01D69/10;B01D71/80;B01D71/82 |
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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