发明授权
US08206481B2 HEPA (H-10) performance synthetic nonwoven and nanofiber composite filter media
失效
HEPA（H-10）性能合成非织造布和纳米纤维复合过滤介质
- 专利标题： HEPA (H-10) performance synthetic nonwoven and nanofiber composite filter media
- 专利标题（中）： HEPA（H-10）性能合成非织造布和纳米纤维复合过滤介质
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申请号： US12394320申请日： 2009-02-27
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公开(公告)号： US08206481B2公开(公告)日： 2012-06-26
- 发明人: Alan Smithies , Robert Henry Devine, II , Jack T. Clements
- 申请人： Alan Smithies , Robert Henry Devine, II , Jack T. Clements
- 申请人地址： US MO Kansas City
- 专利权人： BHA Group, Inc.
- 当前专利权人： BHA Group, Inc.
- 当前专利权人地址： US MO Kansas City
- 代理机构： Pearne & Gordon LLP
- 主分类号： B01D50/00
- IPC分类号： B01D50/00
摘要：
A composite filter media structure and an associated method of making are provided. The structure includes a base substrate that includes a nonwoven fabric substrate formed from a plurality of bicomponent synthetic fibers using a spunbond process. The composite filter media structure includes a nanofiber layer deposited on one side of the base substrate by an electro-blown spinning process. In one aspect, the base substrate and the nanofiber layer are configured to provide at least an 85% filtration efficiency measured in accordance with an ASHRAE 52.2-1999 test method. In another aspect, the nanofiber layer has a basis weight of about 2.0 g/m2 to about 3.0 g/m2.