Invention Grant
- Patent Title: Air filtration medium with improved dust loading capacity and improved resistance to high humidity environment
- Patent Title (中): 空气过滤介质具有改善的粉尘负荷能力和改善的耐高湿环境
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Application No.: US12418928Application Date: 2009-04-06
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Publication No.: US08282712B2Publication Date: 2012-10-09
- Inventor: Cheng-Hang Chi , Hyun Sung Lim , Lu Zhang
- Applicant: Cheng-Hang Chi , Hyun Sung Lim , Lu Zhang
- Applicant Address: US DE Wilmington
- Assignee: E I du Pont de Nemours and Company
- Current Assignee: E I du Pont de Nemours and Company
- Current Assignee Address: US DE Wilmington
- Main IPC: B01D46/00
- IPC: B01D46/00
Abstract:
A filtration medium is disclosed for use in air filters used in heating, ventilating and air conditioning systems. The medium contains at least one nanofiber layer of fibers having diameters less than 1 μm and at least one upstream layer, the medium having sufficient holding capacity for dust particles that efficiency loss and pressure loss across the medium are minimized during use.
Public/Granted literature
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