发明名称 |
FILTER MEDIA WITH NANOWEB LAYER |
摘要 |
A filter media for filtering particulates from air or other gases contains a membrane, and a depth filtration layer upstream and in fluid contact with the membrane. The depth filtration layer contains a nanoweb layer and a prefiltration layer upstream of and in fluid communication with the nanoweb layer. The prefiltration layer may be a nonwoven, and in one embodiment, specifically a melt blown nonwoven which may also be charged. |
申请公布号 |
EP2364196(A1) |
申请公布日期 |
2011.09.14 |
申请号 |
EP20090764981 |
申请日期 |
2009.12.07 |
申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
LIM, HYUN, SUNG;CHI, CHENG-HANG |
分类号 |
B01D39/16;B01D46/54 |
主分类号 |
B01D39/16 |
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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