发明申请
- 专利标题： Filter material for micro-filter
- 专利标题（中）： 微滤器用过滤材料
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申请号： US10515586申请日： 2003-05-14
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公开(公告)号： US20050202231A1公开(公告)日： 2005-09-15
- 发明人: Atsuhiro Takata , Ryuma Kuroda , Satoshi Hanada , Takeshi Yamada
- 申请人： Atsuhiro Takata , Ryuma Kuroda , Satoshi Hanada , Takeshi Yamada
- 申请人地址： JP Chuo-ku, Tokyo
- 专利权人： SUMITOMO CHEMICAL COMPANY, LIMITED
- 当前专利权人： SUMITOMO CHEMICAL COMPANY, LIMITED
- 当前专利权人地址： JP Chuo-ku, Tokyo
- 优先权： JP2002-153880 20020528
- 国际申请： PCT/JP03/05965 WO 20030514
- 主分类号： B01D39/16
- IPC分类号： B01D39/16 ; B01D69/02 ; B01D71/26 ; B32B3/26 ; B32B5/14
摘要：
A filter material for microfilters which is made of a micorporous film made of thermoplastic resin having micropores, the material being characterized in that the micropores are formed from a 3-dimensional network made of trunk fibrils extending in one direction of the film and branch fibrils through which the trunk fibrils are connected to one another, and the density of the branch fibrils is higher than the density of the trunk fibrils. This filter material is strength enough for practical use and also exhibits a high separation efficiency.
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