WO2008153878A3 - Multiple layer filter media - Google Patents

Multiple layer filter media Download PDF

Info

Publication number
WO2008153878A3
WO2008153878A3 PCT/US2008/007030 US2008007030W WO2008153878A3 WO 2008153878 A3 WO2008153878 A3 WO 2008153878A3 US 2008007030 W US2008007030 W US 2008007030W WO 2008153878 A3 WO2008153878 A3 WO 2008153878A3
Authority
WO
WIPO (PCT)
Prior art keywords
filter media
layer filter
multiple layer
layer
layers
Prior art date
Application number
PCT/US2008/007030
Other languages
French (fr)
Other versions
WO2008153878A2 (en
Inventor
Richard Gebert
Wai Sing Poon
Steve Stark
Original Assignee
Gore Enterprise Holdings Inc
Richard Gebert
Wai Sing Poon
Steve Stark
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
Application filed by Gore Enterprise Holdings Inc, Richard Gebert, Wai Sing Poon, Steve Stark filed Critical Gore Enterprise Holdings Inc
Priority to EP20080768115 priority Critical patent/EP2160230B1/en
Priority to JP2010511185A priority patent/JP2010528844A/en
Priority to AU2008262432A priority patent/AU2008262432B2/en
Priority to CN2008800256701A priority patent/CN101754792B/en
Priority to CA2690076A priority patent/CA2690076C/en
Priority to KR1020107000410A priority patent/KR101152511B1/en
Publication of WO2008153878A2 publication Critical patent/WO2008153878A2/en
Publication of WO2008153878A3 publication Critical patent/WO2008153878A3/en

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
    • B01D46/52—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material
    • B01D46/521—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material
    • 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
    • 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
    • B01D39/1692—Other shaped material, e.g. perforated or porous sheets
    • 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
    • B01D46/54—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms
    • B01D46/543—Particle separators, e.g. dust precipitators, using ultra-fine filter sheets or diaphragms using membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
    • B01D2239/065—More than one layer present in the filtering material
    • B01D2239/0668—The layers being joined by heat or melt-bonding
    • 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

Abstract

The invention provides a multiple layer filter media for removal of particles from a fluid stream. The multiple layer filter media may include a depth filtration layer, a membrane filtration layer and a support layer. Additional layers may be present. The membrane filtration layer may comprise expanded polytetrafluoroethylene (ePTFE). The various layers of the multiple layer filter media may be bonded together through a plurality of point bonds. The point bonding process may include simultaneously bonding multiple layers of the multiple layer filter media together in a single operation. The point bonds may be created using ultrasonic bonding.
PCT/US2008/007030 2007-06-08 2008-06-02 Multiple layer filter media WO2008153878A2 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP20080768115 EP2160230B1 (en) 2007-06-08 2008-06-02 Multiple layer filter media
JP2010511185A JP2010528844A (en) 2007-06-08 2008-06-02 Multilayer filter media
AU2008262432A AU2008262432B2 (en) 2007-06-08 2008-06-02 Multiple layer filter media
CN2008800256701A CN101754792B (en) 2007-06-08 2008-06-02 Multiple layer filter media
CA2690076A CA2690076C (en) 2007-06-08 2008-06-02 Multiple layer filter media
KR1020107000410A KR101152511B1 (en) 2007-06-08 2008-06-02 Multiple layer filter media

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/760,433 US8147583B2 (en) 2007-06-08 2007-06-08 Multiple layer filter media
US11/760,433 2007-06-08

Publications (2)

Publication Number Publication Date
WO2008153878A2 WO2008153878A2 (en) 2008-12-18
WO2008153878A3 true WO2008153878A3 (en) 2009-04-09

Family

ID=39941416

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2008/007030 WO2008153878A2 (en) 2007-06-08 2008-06-02 Multiple layer filter media

Country Status (8)

Country Link
US (1) US8147583B2 (en)
EP (1) EP2160230B1 (en)
JP (3) JP2010528844A (en)
KR (1) KR101152511B1 (en)
CN (1) CN101754792B (en)
AU (1) AU2008262432B2 (en)
CA (1) CA2690076C (en)
WO (1) WO2008153878A2 (en)

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EP3825104B1 (en) * 2015-02-13 2022-06-01 W.L. Gore & Associates, Inc. Venting apparatus
KR102206959B1 (en) 2015-04-17 2021-01-25 이엠디 밀리포어 코포레이션 Method of purifying a biological material of interest in a sample using nanofiber ultrafiltration membranes operated in tangential flow filtration mode
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DE102016209482A1 (en) * 2016-05-31 2017-11-30 Mahle International Gmbh Process for producing a filter medium and filter medium
US11117079B2 (en) * 2017-01-20 2021-09-14 Champion Laboratories, Inc. Filter packs, processes for making filter packs, and air filters comprising filter packs
WO2018152683A1 (en) * 2017-02-22 2018-08-30 W. L. Gore & Associates, Inc. Layered filter assembly for enclosure protection
CN107115730B (en) * 2017-06-29 2022-08-26 上海市建筑科学研究院(集团)有限公司 Can present air purifier who sets for pattern along with purifying process
KR102290858B1 (en) * 2019-08-02 2021-08-20 (주)크린앤사이언스 Composite filter material and manufacturing method thereof
US20210379518A1 (en) * 2020-06-08 2021-12-09 W. L. Gore & Associates, Inc. Filter media and methods of making and using
KR20220017163A (en) * 2020-08-04 2022-02-11 박이빛 Mask with ePTFE membrane
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JP2023025511A (en) * 2021-08-10 2023-02-22 帝人株式会社 laminated film

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Also Published As

Publication number Publication date
KR20100024480A (en) 2010-03-05
JP5856094B2 (en) 2016-02-09
EP2160230B1 (en) 2015-05-20
CN101754792B (en) 2012-11-28
WO2008153878A2 (en) 2008-12-18
US20080302074A1 (en) 2008-12-11
JP2013146730A (en) 2013-08-01
US8147583B2 (en) 2012-04-03
CA2690076A1 (en) 2008-12-18
CA2690076C (en) 2012-05-08
JP2015221438A (en) 2015-12-10
AU2008262432B2 (en) 2011-11-03
KR101152511B1 (en) 2012-07-03
EP2160230A2 (en) 2010-03-10
CN101754792A (en) 2010-06-23
AU2008262432A1 (en) 2008-12-18
JP2010528844A (en) 2010-08-26

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