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公开(公告)号：EP2798107B1
公开(公告)日：2018-01-24
申请号：EP12862417.8
申请日：2012-12-20
CPC分类号： D04H1/732 , D04H1/413 , D04H1/4382 , D04H1/541 , D04H1/736
摘要： Methods and apparatus including a chamber having a substantially open lower end positioned above a collector surface, at least one fiber inlet positioned above the lower end, a first multiplicity of rollers positioned within the chamber wherein each roller has a multiplicity of projections extending outwardly from a circumferential surface surrounding a center axis of rotation, a second multiplicity of rollers positioned within the chamber above the first multiplicity of rollers wherein each of the second multiplicity of rollers has a multiplicity of projections extending outwardly from a circumferential surface surrounding a center axis of rotation, the second multiplicity of rollers positioned so at least a portion of the projections extending outwardly from the circumferential surfaces of each of the second multiplicity of rollers vertically overlaps with at least a portion of the projections extending outwardly from the circumferential surface of at least one of the first multiplicity of rollers.
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公开(公告)号：EP1732664B1
公开(公告)日：2009-07-29
申请号：EP05724959.1
申请日：2005-03-08
IPC分类号： B01D39/16
CPC分类号： B01D39/1623 , Y10S55/05 , Y10T428/24628 , Y10T428/24686 , Y10T442/60 , Y10T442/643
摘要： A filter element that has rows of folded pleats and includes a nonwoven filtration web that contains thermoplastic fibers, a majority of which fibers are aligned at 90°±20° with respect to the row direction. The filter elements can be made by forming rows of pleats in such a nonwoven web and cutting the web to a desired size and shape. The filter elements can provide improved mechanical and filtration properties.
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公开(公告)号：EP1414578B1
公开(公告)日：2006-12-06
申请号：EP02739271.1
申请日：2002-05-13
发明人： ZHANG, Zhiqun , WU, Tien T. , TANG, Yuan-Ming , SPIEWAK, Brian E.
摘要： An electrostaticly charged filtration media is provided comprising a plurality of polymeric structured polymeric film layers having a structured surface defined on at least one face of each structured film layer forming at least in part flow channels, the plurality of structured film layers configured as a stack with the structured surfaces defining a plurality of ordered inlets open through a face of the stack that are in fluid communication with ordered fluid pathways each fluid pathway defined at least in part by at least one discrete flow channel such that fluid can flow substantially unimpeded from one of the inlets to an outlet opening at through another face of the stack wherein layer of fluid pathways is defined by two opposing charged film layers at least one of which is a structured film layer that has flow channels with an average height of from 0.1 mm to 5 mm and an average width of from 0.05 mm to 50 mm and an average aspect ratio of from 0.5 to 10.
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公开(公告)号：EP3867434A1
公开(公告)日：2021-08-25
申请号：EP19872860.2
申请日：2019-10-07
发明人： WU, Tien T. , WU, Pingfan , REN, Liyun
IPC分类号： D04H1/00 , D04H1/43 , D04H1/56 , D04H1/4291
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公开(公告)号：EP3768655A1
公开(公告)日：2021-01-27
申请号：EP19719366.7
申请日：2019-03-19
IPC分类号： C04B41/81 , C04B41/00 , C04B41/45 , C08F2/44 , C08F292/00
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公开(公告)号：EP2798108B1
公开(公告)日：2016-11-16
申请号：EP12863713.9
申请日：2012-12-21
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公开(公告)号：EP2798107A1
公开(公告)日：2014-11-05
申请号：EP12862417.8
申请日：2012-12-20
CPC分类号： D04H1/732 , D04H1/413 , D04H1/4382 , D04H1/541 , D04H1/736
摘要： Methods and apparatus including a chamber having a substantially open lower end positioned above a collector surface, at least one fiber inlet positioned above the lower end, a first multiplicity of rollers positioned within the chamber wherein each roller has a multiplicity of projections extending outwardly from a circumferential surface surrounding a center axis of rotation, a second multiplicity of rollers positioned within the chamber above the first multiplicity of rollers wherein each of the second multiplicity of rollers has a multiplicity of projections extending outwardly from a circumferential surface surrounding a center axis of rotation, the second multiplicity of rollers positioned so at least a portion of the projections extending outwardly from the circumferential surfaces of each of the second multiplicity of rollers vertically overlaps with at least a portion of the projections extending outwardly from the circumferential surface of at least one of the first multiplicity of rollers.
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