发明名称 |
SEPARATION-MEMBRANE SUPPORT |
摘要 |
A separation membrane support substrate characterized by being composed of a laminated nonwoven fabric comprising a front layer as the resin coating layer, a middle layer and a back layer which are integrally formed by heat bonding, and by satisfying the following conditions (1) to (5): (1) The front layer has at least one layer comprising thermoplastic resin filaments with a single filament diameter of 7-30 µm ; (2) the middle layer has at least one layer comprising melt blown fibers with a single fiber diameter of no greater than 5 µm, and a fiber basis weight of at least 1 g/m 2 and comprising no more than 30 wt% of the total fiber basis weight; (3) the back layer has at least one layer comprising thermoplastic resin filaments with a single filament diameter of 7-20 µm, and has a fiber basis weight of 3-40 g/m 2 ; (4) the laminated nonwoven fabric has an apparent density of 0.67-0.91 g/cm 3 ; and (5) the laminated nonwoven fabric has a thickness of 45-110 µm. |
申请公布号 |
EP1829603(B1) |
申请公布日期 |
2010.06.16 |
申请号 |
EP20050816572 |
申请日期 |
2005.12.19 |
申请人 |
ASAHI KASEI FIBERS CORPORATION |
发明人 |
YOSHIDA, MINORU;SUZUKA, RYUJI |
分类号 |
B01D69/10;B01D71/48;B32B5/26;D04H1/54;D04H3/16;D06C15/00 |
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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