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.: US12878084Application Date: 2010-09-09
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Publication No.: US08636833B2Publication Date: 2014-01-28
- Inventor: David Charles Jones , Hyun Sung Lim , Cheng-Hang Chi , Lu Zhang
- Applicant: David Charles Jones , Hyun Sung Lim , Cheng-Hang Chi , 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
- Agent Simon L. Xu
- Main IPC: B01D46/00
- IPC: B01D46/00
Abstract:
A method for filtering particles from water mist laden air involves passing the air through a medium that has a nanoweb layer in fluid contact with a hydrophobic nonwoven web. The hydrophobic web can be made of an intrinsically hydrophobic material, or can be coated with a hydrophobic coating. The medium does not undergo the large pressure drops normally associated with filtration of water mists and retains its efficiency well.
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