DE69914346D1 - Hochwirksames künstliches filtermaterial - Google Patents

Hochwirksames künstliches filtermaterial

Info

Publication number
DE69914346D1
DE69914346D1 DE69914346T DE69914346T DE69914346D1 DE 69914346 D1 DE69914346 D1 DE 69914346D1 DE 69914346 T DE69914346 T DE 69914346T DE 69914346 T DE69914346 T DE 69914346T DE 69914346 D1 DE69914346 D1 DE 69914346D1
Authority
DE
Germany
Prior art keywords
filter material
highly effective
artificial filter
effective artificial
highly
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
DE69914346T
Other languages
English (en)
Other versions
DE69914346T2 (de
Inventor
T Wu
Richard Kinderman
Seyed Abolhassan
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=22518223&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69914346(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Publication of DE69914346D1 publication Critical patent/DE69914346D1/de
Application granted granted Critical
Publication of DE69914346T2 publication Critical patent/DE69914346T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
    • B01D39/1623—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
    • B01D39/163—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin sintered or bonded
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/02—Loose filtering material, e.g. loose fibres
    • B01D39/04—Organic material, e.g. cellulose, cotton
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/48—Processes of making filters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S55/00—Gas separation
    • Y10S55/05—Methods of making filter
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S55/00—Gas separation
    • Y10S55/39—Electrets separator
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T442/00—Fabric [woven, knitted, or nonwoven textile or cloth, etc.]
    • Y10T442/20—Coated or impregnated woven, knit, or nonwoven fabric which is not [a] associated with another preformed layer or fiber layer or, [b] with respect to woven and knit, characterized, respectively, by a particular or differential weave or knit, wherein the coating or impregnation is neither a foamed material nor a free metal or alloy layer
    • Y10T442/2221—Coating or impregnation is specified as water proof
    • Y10T442/2238—Fluorocarbon containing
DE69914346T 1998-09-03 1999-02-16 Hochwirksames künstliches filtermaterial Expired - Lifetime DE69914346T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US146627 1998-09-03
US09/146,627 US6123752A (en) 1998-09-03 1998-09-03 High efficiency synthetic filter medium
PCT/US1999/003188 WO2000013765A1 (en) 1998-09-03 1999-02-16 High efficiency synthetic filter medium

Publications (2)

Publication Number Publication Date
DE69914346D1 true DE69914346D1 (de) 2004-02-26
DE69914346T2 DE69914346T2 (de) 2004-11-11

Family

ID=22518223

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69914346T Expired - Lifetime DE69914346T2 (de) 1998-09-03 1999-02-16 Hochwirksames künstliches filtermaterial

Country Status (9)

Country Link
US (1) US6123752A (de)
EP (1) EP1117467B1 (de)
JP (1) JP2002524226A (de)
KR (1) KR20010073090A (de)
AU (1) AU3293399A (de)
CA (1) CA2340355C (de)
DE (1) DE69914346T2 (de)
TW (1) TW487595B (de)
WO (1) WO2000013765A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10273611B2 (en) 2006-03-28 2019-04-30 Irema-Filter Gmbh Pleatable nonwoven material and method and apparatus for production thereof

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US6630231B2 (en) * 1999-02-05 2003-10-07 3M Innovative Properties Company Composite articles reinforced with highly oriented microfibers
US6110588A (en) 1999-02-05 2000-08-29 3M Innovative Properties Company Microfibers and method of making
WO2001060496A1 (en) * 2000-02-15 2001-08-23 Hollingsworth & Vose Company Melt blown composite hepa filter media and vacuum bag
JP4581213B2 (ja) * 2000-10-11 2010-11-17 東レ株式会社 エレクトレット加工品の製造方法
JP4581212B2 (ja) * 2000-10-11 2010-11-17 東レ株式会社 エレクトレット加工品の製造方法
EP1339477A4 (de) 2000-11-14 2007-07-04 Lydall Inc Luftgelegte/nassgelegte glasfiltrationsmedien
JP3780916B2 (ja) * 2000-11-28 2006-05-31 東レ株式会社 エレクトレット加工品の製造方法
DE10059050C2 (de) * 2000-11-28 2003-02-27 Freudenberg Carl Kg Verfahren zur Herstellung eines triboelektrisch geladenen Vliesstoffs
JP4670144B2 (ja) * 2000-12-04 2011-04-13 東レ株式会社 エレクトレット加工品の製造方法
US6420024B1 (en) 2000-12-21 2002-07-16 3M Innovative Properties Company Charged microfibers, microfibrillated articles and use thereof
JP4747255B2 (ja) * 2000-12-27 2011-08-17 Ｊｎｃ株式会社 帯電性を有するトウおよびそれを用いた積層体
WO2002089956A1 (en) * 2001-05-02 2002-11-14 Hollingsworth & Vose Company Filter media with enhanced stiffness and increased dust holding capacity
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US20030054716A1 (en) * 2001-09-07 2003-03-20 3M Innovative Properties Company Method of making an electret
ATE503545T1 (de) * 2001-12-08 2011-04-15 Ibs Filtran Kunststoff Metall Mehrlagiges verbundfiltermedium zur serienfiltration
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US20100212272A1 (en) * 2009-02-24 2010-08-26 Hollingsworth & Vose Company Filter media suitable for ashrae applications
US8950587B2 (en) 2009-04-03 2015-02-10 Hollingsworth & Vose Company Filter media suitable for hydraulic applications
EP2414576B1 (de) * 2009-04-03 2016-11-09 3M Innovative Properties Company Verarbeitungshilfe für bahnmaterialien, einschliesslich elektret-bahnmaterial
US8790449B2 (en) 2009-04-03 2014-07-29 3M Innovative Properties Company Electret webs with charge-enhancing additives
US8679218B2 (en) 2010-04-27 2014-03-25 Hollingsworth & Vose Company Filter media with a multi-layer structure
CA2809200C (en) 2010-08-23 2019-09-17 Fiberweb Corovin Gmbh Nonwoven web and fibers with electret properties, manufacturing processes thereof and their use
DE102010052155A1 (de) 2010-11-22 2012-05-24 Irema-Filter Gmbh Luftfiltermedium mit zwei Wirkmechanismen
US20120152821A1 (en) 2010-12-17 2012-06-21 Hollingsworth & Vose Company Fine fiber filter media and processes
US10155186B2 (en) 2010-12-17 2018-12-18 Hollingsworth & Vose Company Fine fiber filter media and processes
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EP3159056A1 (de) * 2012-06-14 2017-04-26 Irema-Filter GmbH Filtermedium aus synthetischem polymer
US11090590B2 (en) 2012-11-13 2021-08-17 Hollingsworth & Vose Company Pre-coalescing multi-layered filter media
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US9149749B2 (en) 2012-11-13 2015-10-06 Hollingsworth & Vose Company Pre-coalescing multi-layered filter media
CN105188877A (zh) * 2013-02-06 2015-12-23 达斯帝私人有限公司达斯帝联合信托公司 过滤介质
DE102013008402A1 (de) 2013-05-16 2014-11-20 Irema-Filter Gmbh Faservlies und Verfahren zur Herstellung desselben
US9694306B2 (en) 2013-05-24 2017-07-04 Hollingsworth & Vose Company Filter media including polymer compositions and blends
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US10195542B2 (en) 2014-05-15 2019-02-05 Hollingsworth & Vose Company Surface modified filter media
US10399024B2 (en) 2014-05-15 2019-09-03 Hollingsworth & Vose Company Surface modified filter media
DE102014117506A1 (de) 2014-11-28 2016-06-02 Filta Co., Ltd Filtermedium mit großem Faltenabstand
US10343095B2 (en) 2014-12-19 2019-07-09 Hollingsworth & Vose Company Filter media comprising a pre-filter layer
US10828587B2 (en) 2015-04-17 2020-11-10 Hollingsworth & Vose Company Stable filter media including nanofibers
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10273611B2 (en) 2006-03-28 2019-04-30 Irema-Filter Gmbh Pleatable nonwoven material and method and apparatus for production thereof

Also Published As

Publication number Publication date
TW487595B (en) 2002-05-21
JP2002524226A (ja) 2002-08-06
DE69914346T2 (de) 2004-11-11
CA2340355A1 (en) 2000-03-16
WO2000013765A1 (en) 2000-03-16
EP1117467A1 (de) 2001-07-25
AU3293399A (en) 2000-03-27
US6123752A (en) 2000-09-26
CA2340355C (en) 2007-05-01
KR20010073090A (ko) 2001-07-31
EP1117467B1 (de) 2004-01-21

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8363 Opposition against the patent
8365 Fully valid after opposition proceedings
8328 Change in the person/name/address of the agent

Representative=s name: PAE REINHARD, SKUHRA, WEISE & PARTNER GBR, 80801 M