- 专利标题： FILTER MEDIA COMPRISING A NON-WETLAID BACKER
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申请号： US16721788申请日： 2019-12-19
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公开(公告)号： US20210187421A1公开(公告)日： 2021-06-24
- 发明人: David T, Healey , Bruce Smith , Jennifer Dana Leary , Greg Wagner Farell
- 申请人： Hollingsworth & Vose Company
- 申请人地址： US MA East Walpole
- 专利权人： Hollingsworth & Vose Company
- 当前专利权人： Hollingsworth & Vose Company
- 当前专利权人地址： US MA East Walpole
- 主分类号： B01D39/16
- IPC分类号： B01D39/16 ; D04H1/4374 ; D04H1/4391 ; D04H1/58 ; D04H1/732 ; D04H1/435
摘要：
Filter media comprising a non-wetlaid backer are generally provided. In some embodiments, a filter media comprises a non-wetlaid fiber web and further comprises one or more further fiber webs. The further fiber web(s) may include an efficiency layer and/or a prefilter.
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