发明名称 |
Charge stabilized electret filter media |
摘要 |
An electret filter media includes an additive or mixtures thereof that enhance the charge stability of the media. The filter media achieves acceptable alpha values for a range of filtration challenges without significant decay in alpha values over time. Preferred charge additives include fatty acid amides, oleophobic fluorochemical surfactants, and mixtures thereof.
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申请公布号 |
US5645627(A) |
申请公布日期 |
1997.07.08 |
申请号 |
US19950395661 |
申请日期 |
1995.02.28 |
申请人 |
HOLLINGSWORTH & VOSE COMPANY |
发明人 |
LIFSHUTZ, NORMAN;GAHAN, RICHARD E.;STEVENS, GRAHAM C. |
分类号 |
B01D39/08;B03C3/28;D01F1/10;D04H1/42;(IPC1-7):B03C3/28 |
主分类号 |
B01D39/08 |
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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