WO2004069378A3 - Filterelement und verfahren zu seiner herstellung - Google Patents

Filterelement und verfahren zu seiner herstellung Download PDF

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Publication number
WO2004069378A3
WO2004069378A3 PCT/DE2004/000163 DE2004000163W WO2004069378A3 WO 2004069378 A3 WO2004069378 A3 WO 2004069378A3 DE 2004000163 W DE2004000163 W DE 2004000163W WO 2004069378 A3 WO2004069378 A3 WO 2004069378A3
Authority
WO
WIPO (PCT)
Prior art keywords
filter element
solution
microfibres
nanofibres
production
Prior art date
Application number
PCT/DE2004/000163
Other languages
English (en)
French (fr)
Other versions
WO2004069378A2 (de
Inventor
Wolfgang Czado
Original Assignee
Sandler Helmut Helsa Werke
Wolfgang Czado
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE10310435A external-priority patent/DE10310435B3/de
Application filed by Sandler Helmut Helsa Werke, Wolfgang Czado filed Critical Sandler Helmut Helsa Werke
Priority to EP04707482A priority Critical patent/EP1590066A2/de
Publication of WO2004069378A2 publication Critical patent/WO2004069378A2/de
Publication of WO2004069378A3 publication Critical patent/WO2004069378A3/de

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
    • B01D46/0028—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions provided with antibacterial or antifungal means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0001—Making filtering elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
    • B01D46/0032—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions using electrostatic forces to remove particles, e.g. electret filters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2275/00—Filter media structures for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2275/10—Multiple layers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Materials (AREA)

Abstract

Es wird ein hocheffizientes Filterelement mit verbesserter Abscheidungsleistung bei relativ geringem Luftwiderstand und ein Verfahren zur Herstellung eines solchen Filterelementes beschrieben, das mindestens zwei Lagen aus einem luftdurchlässigen Trägmaterial aufweist, die an beiden sich gegenüberliegenden Seiten mit einer Faserschicht aus Nano- und/oder Mikrofasern einer bestimmten elektrischen Polarität beschichtet sind. Das Filterelement wird durch ein Verfah ren hergestellt, bei dem die Nano- und / oder Mikrofasern aus einer Lösung gebildet werden, indem in einem Hochspannungsfeld auf die Lösung eine elektrostatische Kraft wirkt, die Lösung zu den Nano- und/ oder Mikrofasern auseinanderzieht, wobei die Oberflächenspannung, die Viskosität, die Leitfähigkeit und/ oder die Ladung der Lösung durch Zusätze eingestellt wird.
PCT/DE2004/000163 2003-02-05 2004-02-03 Filterelement und verfahren zu seiner herstellung WO2004069378A2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP04707482A EP1590066A2 (de) 2003-02-05 2004-02-03 Filterelement und verfahren zu seiner herstellung

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE10305284 2003-02-05
DE10305284.4 2003-02-05
DE10310435.6 2003-03-11
DE10310435A DE10310435B3 (de) 2003-02-05 2003-03-11 Filterelement und Verfahren zu seiner Herstellung

Publications (2)

Publication Number Publication Date
WO2004069378A2 WO2004069378A2 (de) 2004-08-19
WO2004069378A3 true WO2004069378A3 (de) 2004-11-04

Family

ID=32851845

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2004/000163 WO2004069378A2 (de) 2003-02-05 2004-02-03 Filterelement und verfahren zu seiner herstellung

Country Status (2)

Country Link
EP (1) EP1590066A2 (de)
WO (1) WO2004069378A2 (de)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6743273B2 (en) 2000-09-05 2004-06-01 Donaldson Company, Inc. Polymer, polymer microfiber, polymer nanofiber and applications including filter structures
US8308834B2 (en) 2007-03-05 2012-11-13 Bha Group, Inc. Composite filter media
US7927540B2 (en) 2007-03-05 2011-04-19 Bha Group, Inc. Method of manufacturing a composite filter media
US8986432B2 (en) 2007-11-09 2015-03-24 Hollingsworth & Vose Company Meltblown filter medium, related applications and uses
US8512432B2 (en) * 2008-08-01 2013-08-20 David Charles Jones Composite filter media
US8950587B2 (en) 2009-04-03 2015-02-10 Hollingsworth & Vose Company Filter media suitable for hydraulic applications
US8679218B2 (en) 2010-04-27 2014-03-25 Hollingsworth & Vose Company Filter media with a multi-layer structure
US10155186B2 (en) 2010-12-17 2018-12-18 Hollingsworth & Vose Company Fine fiber filter media and processes
US20120152821A1 (en) 2010-12-17 2012-06-21 Hollingsworth & Vose Company Fine fiber filter media and processes
CN105209147B (zh) 2013-03-15 2020-07-03 唐纳森公司 过滤介质和元件
US9694306B2 (en) 2013-05-24 2017-07-04 Hollingsworth & Vose Company Filter media including polymer compositions and blends
US9474994B2 (en) 2013-06-17 2016-10-25 Donaldson Company, Inc. Filter media and elements
EP3038732B1 (de) 2013-08-29 2018-02-28 Mahle International GmbH Filtermaterial, filterelement und verfahren zum herstellen eines filtermaterials
US10343095B2 (en) 2014-12-19 2019-07-09 Hollingsworth & Vose Company Filter media comprising a pre-filter layer
WO2017120398A1 (en) 2016-01-07 2017-07-13 Donaldson Company, Inc. Styrene-acrylonitrile fine fibers, filter media, recirculation filters, and methods
DE102018103682A1 (de) 2018-02-19 2019-08-22 Twe Gmbh & Co. Kg Filtermedium

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4069026A (en) * 1970-06-29 1978-01-17 Bayer Aktiengesellschaft Filter made of electrostatically spun fibres
EP0829293A1 (de) * 1996-09-04 1998-03-18 Esfil Limited Filtermaterial und dessen Herstellungsverfahren
EP1059106A2 (de) * 1999-06-07 2000-12-13 Nicast Ltd. Filtermaterial und Vorrichtung und Verfahren zur Herstellung
WO2002020668A2 (en) * 2000-09-05 2002-03-14 Donaldson Company, Inc. Polymer compositions, polymer microfibers, polymer nanofibers and applications including filter structure
DE10109474C1 (de) * 2001-02-28 2002-06-20 Sandler Helmut Helsa Werke Filtermaterialien mit bipolarer Beschichtung
EP1283283A1 (de) * 2001-07-30 2003-02-12 HELSA-WERKE HELMUT SANDLER GmbH & CO. KG Verfahren zur Herstellung eines Faserprodukts
WO2003014430A1 (de) * 2001-07-30 2003-02-20 Helsa-Werke Helmut Sandler Gmbh & Co. Kg Verfahren zur herstellung von fasern oder eines faserprodukts in einem elektrostatischen spinnverfahren

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4069026A (en) * 1970-06-29 1978-01-17 Bayer Aktiengesellschaft Filter made of electrostatically spun fibres
EP0829293A1 (de) * 1996-09-04 1998-03-18 Esfil Limited Filtermaterial und dessen Herstellungsverfahren
EP1059106A2 (de) * 1999-06-07 2000-12-13 Nicast Ltd. Filtermaterial und Vorrichtung und Verfahren zur Herstellung
WO2002020668A2 (en) * 2000-09-05 2002-03-14 Donaldson Company, Inc. Polymer compositions, polymer microfibers, polymer nanofibers and applications including filter structure
DE10109474C1 (de) * 2001-02-28 2002-06-20 Sandler Helmut Helsa Werke Filtermaterialien mit bipolarer Beschichtung
EP1283283A1 (de) * 2001-07-30 2003-02-12 HELSA-WERKE HELMUT SANDLER GmbH & CO. KG Verfahren zur Herstellung eines Faserprodukts
WO2003014430A1 (de) * 2001-07-30 2003-02-20 Helsa-Werke Helmut Sandler Gmbh & Co. Kg Verfahren zur herstellung von fasern oder eines faserprodukts in einem elektrostatischen spinnverfahren

Also Published As

Publication number Publication date
WO2004069378A2 (de) 2004-08-19
EP1590066A2 (de) 2005-11-02

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