发明名称 |
SEMIPERMEABLE MEMBRANE SUPPORTING BODY, SPIRAL-WOUND SEMIPERMEABLE MEMBRANE ELEMENT, AND METHOD FOR PRODUCING SEMIPERMEABLE MEMBRANE SUPPORTING BODY |
摘要 |
A semipermeable membrane supporting material formed of a non-woven fabric comprising two or more main synthetic fibers having different fiber diameters and a binder synthetic fiber and having a semipermeable membrane application surface and a non-application surface having a semipermeable membrane application surface:non-application surface smoothness ratio of from 5.0:1.0 to 1.1:1.0, a semipermeable membrane supporting material formed of a non-woven fabric comprising a main synthetic fiber and a binder synthetic fiber, having an average breaking length of less than 4.0 km in the machine direction (MD) and the cross direction (CD) at an elongation by 5 % and having a dimensional change ratio, measured under heat in the cross direction (CD), of -0.3 to +1.0 %, a spiral-type semipermeable membrane element including the above semipermeable membrane supporting material, and a process for producing a semipermeable membrane supporting material. |
申请公布号 |
EP2492001(A4) |
申请公布日期 |
2014.07.09 |
申请号 |
EP20100825079 |
申请日期 |
2010.10.18 |
申请人 |
MITSUBISHI PAPER MILLS LIMITED |
发明人 |
YOSHIDA, MITSUO;TAKAYAMA, KAZUHIKO;KIMURA, KAORU;TAKEUCHI, TSUNEKATSU;FUJIKI, HITOSHI;FUKUDA, MOTOMICHI |
分类号 |
B01D69/10;D21H13/10;D21H15/02 |
主分类号 |
B01D69/10 |
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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