| 发明名称 |
Process of making a fibrous electret web |
| 摘要 |
A method for imparting an electrostatic charge to a nonwoven fibrous web 20. The fibrous web 20 is contacted with a liquid solution that includes water and a non-aqueous water soluble component, followed by drying 31. The resulting dried product is an electret article 43 that could be used as an air filter in, for example, a respirator 50.
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| 申请公布号 |
US6824718(B2) |
申请公布日期 |
2004.11.30 |
| 申请号 |
US20020162753 |
申请日期 |
2002.06.04 |
| 申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
EITZMAN PHILIP D.;ROUSSEAU ALAN D. |
| 分类号 |
A62B18/02;B01D39/14;B01D39/16;B03C3/28;D01F1/10;D01F6/06;D04H1/42;D06M11/00;D06M11/05;D06M13/127;D06M13/144;D06M13/148;D06M13/352;D06M13/358;D06M23/10;D06M101/20;(IPC1-7):D06M13/127;D06M13/248;D06M13/345;D06M13/402 |
主分类号 |
A62B18/02 |
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