发明名称 |
IMPROVED PLEATED NANOWEB STRUCTURES |
摘要 |
A filter including a filter medium with a pleated structure. The medium includes a nanoweb layer and a scrim, wherein the nanoweb layer contains fibers with a number average diameter less than 1 micron and layer thickness less than 50 microns. The ratio of total medium thickness-to-pleat spacing is less than 0.15 and the nanoweb layer has a basis weight of more than about 0.6 gsm. The nonwoven scrim can be a spunbond web, a dry-laid web, a wet-laid web, a cellulose fiber web, a melt blown web and a glass fiber web. |
申请公布号 |
EP2188031(A1) |
申请公布日期 |
2010.05.26 |
申请号 |
EP20080799300 |
申请日期 |
2008.09.08 |
申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
CHI, CHENG-HANG;LIM, HYUN, SUNG |
分类号 |
B01D39/16;B01D29/01;B01D29/07 |
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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