| 发明名称 |
Filter media having an undulated surface |
| 摘要 |
Filter media is provided. The filter media comprises a web of melt blown microfibers having one surface substantially flat and the other surface having periodic wrinkle-like undulations. A method of making the filter media is also provided. The filter media is useful in electret filters when charged.
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| 申请公布号 |
US5643507(A) |
申请公布日期 |
1997.07.01 |
| 申请号 |
US19950452116 |
申请日期 |
1995.05.26 |
| 申请人 |
MINNESOTA MINING AND MANUFACTURING COMPANY |
发明人 |
BERRIGAN, MICHAEL R.;OLSON, DAVID A. |
| 分类号 |
A41D13/11;B01D39/08;B01D39/16;D04H1/42;D04H1/46;D04H1/56;D04H13/00;(IPC1-7):B27N3/00 |
主分类号 |
A41D13/11 |
| 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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