发明授权
- 专利标题： Method for the manufacture of an electret fibrous filter
- 专利标题（中）： 电子滤波器的制造方法
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申请号： US561872申请日： 1975-03-25
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公开(公告)号： US3998916A公开(公告)日： 1976-12-21
- 发明人: Jan van Turnhout
- 申请人： Jan van Turnhout
- 申请人地址： NL Rotterdam
- 专利权人： N.V. Verto
- 当前专利权人： N.V. Verto
- 当前专利权人地址： NL Rotterdam
- 优先权： NL7403975 19740325
- 主分类号： B01D39/14
- IPC分类号： B01D39/14 ; B01D39/08 ; B01D39/16 ; B29C71/00 ; D01D5/42 ; D04H13/02 ; D06M10/00 ; D06M10/02 ; D06M101/00 ; D06M101/16 ; D06M101/18 ; D06M101/20 ; D06M101/22 ; H01G7/02 ; B29D27/00
摘要：
A method for the manufacture of an electrically charged fibrous filter from a highly molecular non-polar fiber material wherein a web of the fiber material is continuously fed and stretched. At least one side of the stretched web is homopolarly charged by a plurality of corona charging elements. The charged web material is then fibrillated, collected and processed into a filter.
公开/授权文献
- US5657577A Process for growing tissue cultured plants 公开/授权日：1997-08-19
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