发明名称 |
Liquid filtration media |
摘要 |
A liquid filter with a composite medium that has a nanoweb adjacent to and optionally bonded to a microporous membrane. The membrane is characterized by an LRV value of 3.7 at a rated particle size, and the nanoweb has a fractional filtration efficiency of greater than 0.95 at the rated particle size of the membrane. The nanoweb also has a thickness efficiency ratio of greater than 0.01 at that efficiency. The nanoweb acts to provide depth filtration to the membrane, prefilters particles and extends the lifetime of the membrane.
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申请公布号 |
US8038013(B2) |
申请公布日期 |
2011.10.18 |
申请号 |
US20080074164 |
申请日期 |
2008.02.29 |
申请人 |
E.I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
CHEN GUANGHUI;GOMMEREN HENRICUS JACOBUS CORNELIS;KNORR LAWRENCE MARK |
分类号 |
B01D29/00;B01D24/02;B01D27/00;B01D29/46 |
主分类号 |
B01D29/00 |
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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