WO2002062449A3 - Oleophobic membrane materials by oligomer polymerization for filter venting applications - Google Patents

Oleophobic membrane materials by oligomer polymerization for filter venting applications Download PDF

Info

Publication number
WO2002062449A3
WO2002062449A3 PCT/US2002/002872 US0202872W WO02062449A3 WO 2002062449 A3 WO2002062449 A3 WO 2002062449A3 US 0202872 W US0202872 W US 0202872W WO 02062449 A3 WO02062449 A3 WO 02062449A3
Authority
WO
WIPO (PCT)
Prior art keywords
membrane materials
venting applications
oleophobic membrane
filter venting
oligomer polymerization
Prior art date
Application number
PCT/US2002/002872
Other languages
French (fr)
Other versions
WO2002062449A2 (en
WO2002062449A8 (en
Inventor
I-Fan Wang
Jeff Palpallatoc
Original Assignee
Usf Filtration & Separations
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 Usf Filtration & Separations filed Critical Usf Filtration & Separations
Priority to EP02707648A priority Critical patent/EP1381443A2/en
Priority to JP2002562452A priority patent/JP2004530536A/en
Priority to CA002434651A priority patent/CA2434651A1/en
Priority to AU2002242044A priority patent/AU2002242044A1/en
Publication of WO2002062449A2 publication Critical patent/WO2002062449A2/en
Publication of WO2002062449A3 publication Critical patent/WO2002062449A3/en
Publication of WO2002062449A8 publication Critical patent/WO2002062449A8/en

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
    • B01D39/1692—Other shaped material, e.g. perforated or porous sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/04—Additives and treatments of the filtering material
    • B01D2239/0471—Surface coating material
    • B01D2239/0478—Surface coating material on a layer of the filter
    • 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
    • B01D2239/0604—Arrangement of the fibres in the filtering material
    • B01D2239/0613—Woven
    • 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
    • B01D2239/0604—Arrangement of the fibres in the filtering material
    • B01D2239/0618—Non-woven
    • 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
    • B01D2239/0604—Arrangement of the fibres in the filtering material
    • B01D2239/0622—Melt-blown
    • 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
    • B01D2239/0654—Support layers
    • 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
    • B01D2239/12—Special parameters characterising the filtering material
    • B01D2239/1216—Pore size
    • 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
    • B01D2239/12—Special parameters characterising the filtering material
    • B01D2239/125—Size distribution
    • 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

Abstract

Oleophobic and hydrophobic filters for filter venting applications are made by forming a fluorosulfone coating on the surface of a filtration substrate. The filters have high water penetration pressures and high air permeabilities. The coatings are formed by grafting a fluorosulfone oligomer to a polymeric substrate.
PCT/US2002/002872 2001-02-07 2002-01-31 Oleophobic membrane materials by oligomer polymerization for filter venting applications WO2002062449A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP02707648A EP1381443A2 (en) 2001-02-07 2002-01-31 Oleophobic membrane materials by oligomer polymerization for filter venting applications
JP2002562452A JP2004530536A (en) 2001-02-07 2002-01-31 Oleophobic membrane material by oligomer polymerization for filter vent applications
CA002434651A CA2434651A1 (en) 2001-02-07 2002-01-31 Oleophobic membrane materials by oligomer polymerization for filter venting applications
AU2002242044A AU2002242044A1 (en) 2001-02-07 2002-01-31 Oleophobic membrane materials by oligomer polymerization for filter venting applications

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/778,630 US6579342B2 (en) 2001-02-07 2001-02-07 Oleophobic membrane materials by oligomer polymerization for filter venting applications
US09/778,630 2001-02-07

Publications (3)

Publication Number Publication Date
WO2002062449A2 WO2002062449A2 (en) 2002-08-15
WO2002062449A3 true WO2002062449A3 (en) 2003-11-20
WO2002062449A8 WO2002062449A8 (en) 2004-08-19

Family

ID=25113961

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/002872 WO2002062449A2 (en) 2001-02-07 2002-01-31 Oleophobic membrane materials by oligomer polymerization for filter venting applications

Country Status (6)

Country Link
US (1) US6579342B2 (en)
EP (1) EP1381443A2 (en)
JP (1) JP2004530536A (en)
AU (1) AU2002242044A1 (en)
CA (1) CA2434651A1 (en)
WO (1) WO2002062449A2 (en)

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DE102010044648B4 (en) 2010-09-07 2017-01-05 Sartorius Stedim Biotech Gmbh Radiation-resistant microporous membrane with hydrophobicity gradient and their use
US8808848B2 (en) 2010-09-10 2014-08-19 W. L. Gore & Associates, Inc. Porous article
JP2012096217A (en) * 2010-10-07 2012-05-24 Toyota Boshoku Corp Filter medium for mist separator
US20130020024A1 (en) * 2011-07-21 2013-01-24 Columbia Sportswear North America, Inc. Apparatus and method for oil repellent microporous film
DE102011121018A1 (en) 2011-12-13 2013-06-13 Sartorius Stedim Biotech Gmbh Hydrophobic or oleophobic microporous polymer membrane with structurally induced Abperl effect
US9365109B2 (en) 2012-06-22 2016-06-14 Bemis Manufacturing Company Cap with adsorption media
US9517952B2 (en) 2013-11-15 2016-12-13 General Electric Company Hydrophilic-oleophobic copolymer composition and uses thereof
JP6816938B2 (en) * 2015-07-27 2021-01-20 日東電工株式会社 Ventilation filter with oil repellency
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Also Published As

Publication number Publication date
WO2002062449A2 (en) 2002-08-15
EP1381443A2 (en) 2004-01-21
AU2002242044A1 (en) 2002-08-19
CA2434651A1 (en) 2002-08-15
US6579342B2 (en) 2003-06-17
US20020144595A1 (en) 2002-10-10
WO2002062449A8 (en) 2004-08-19
JP2004530536A (en) 2004-10-07

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Free format text: IN PCT GAZETTE 33/2002 DUE TO A TECHNICAL PROBLEMAT THE TIME OF INTERNATIONAL PUBLICATION, SOME INFORMATION WAS MISSING UNDER (81). THE MISSING INFORMATION NOW APPEARS IN THE CORRECTED VERSION.