发明名称 |
Fibrous webs having enhanced electret properties |
摘要 |
The present invention relates to a method of making a fibrous electret material which includes the steps of (1) forming a fibrous web of nonconductive thermoplastic fibers from a blend of nonconductive thermoplastic resin and an additive which is (a) a thermally stable organic compound or oligomer containing at least one perfluorinated moiety or (b) a thermally stable organic triazine compound or oligomer containing at least one nitrogen atom in addition to those in the triazine group or (c) a combination thereof; (2) impinging jets of water or a stream of water droplets onto the web at a pressure sufficient to provide the web with filtration enhancing electret charge; and (3) drying the web.
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申请公布号 |
US5908598(A) |
申请公布日期 |
1999.06.01 |
申请号 |
US19950514866 |
申请日期 |
1995.08.14 |
申请人 |
MINNESOTA MINING AND MANUFACTURING COMPANY |
发明人 |
ROUSSEAU, ALAN D.;JONES, MARVIN E.;ANGADJIVAND, SEYED A. |
分类号 |
B01D39/14;B01D39/08;B01D39/16;D01F1/10;D04H1/40;D04H1/42;D04H1/46;(IPC1-7):B29B17/00 |
主分类号 |
B01D39/14 |
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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