WO2003090892A3 - Coform filter media having increased particle loading capacity - Google Patents

Coform filter media having increased particle loading capacity Download PDF

Info

Publication number
WO2003090892A3
WO2003090892A3 PCT/US2003/007650 US0307650W WO03090892A3 WO 2003090892 A3 WO2003090892 A3 WO 2003090892A3 US 0307650 W US0307650 W US 0307650W WO 03090892 A3 WO03090892 A3 WO 03090892A3
Authority
WO
WIPO (PCT)
Prior art keywords
layer
filter medium
coform
filter
filter media
Prior art date
Application number
PCT/US2003/007650
Other languages
French (fr)
Other versions
WO2003090892A2 (en
Inventor
Ganesh Chandra Deka
Ronald C Cox
Original Assignee
Kimberly Clark 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
Application filed by Kimberly Clark Co filed Critical Kimberly Clark Co
Priority to EP20030721362 priority Critical patent/EP1499407A2/en
Priority to CA 2482407 priority patent/CA2482407A1/en
Priority to AU2003224679A priority patent/AU2003224679A1/en
Priority to MXPA04010448A priority patent/MXPA04010448A/en
Publication of WO2003090892A2 publication Critical patent/WO2003090892A2/en
Publication of WO2003090892A3 publication Critical patent/WO2003090892A3/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
    • B01D39/18—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being cellulose or derivatives thereof
    • 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
    • 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.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/608—Including strand or fiber material which is of specific structural definition
    • Y10T442/627—Strand or fiber material is specified as non-linear [e.g., crimped, coiled, etc.]
    • Y10T442/635—Synthetic polymeric strand or fiber material
    • 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.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/659—Including an additional nonwoven fabric
    • 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.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/659—Including an additional nonwoven fabric
    • Y10T442/66—Additional nonwoven fabric is a spun-bonded fabric
    • 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.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/68—Melt-blown nonwoven fabric
    • 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.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/681—Spun-bonded nonwoven fabric
    • 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.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/682—Needled nonwoven fabric
    • Y10T442/684—Containing at least two chemically different strand or fiber materials
    • 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.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/693—Including a paper layer
    • 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.]
    • Y10T442/60—Nonwoven fabric [i.e., nonwoven strand or fiber material]
    • Y10T442/697—Containing at least two chemically different strand or fiber materials
    • Y10T442/698—Containing polymeric and natural strand or fiber materials

Landscapes

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

Abstract

Disclosed is a filter medium having at least a first layer containing a stabilized matrix of thermoplastic filaments and at least one secondary material; and a second layer having a stabilized matrix of thermoplastic filaments and optionally of at least one secondary material. Each of the layer of the filter medium has a different compositional ratio of the components to result in a gradient structure. The compositional gradient for the layers of the coform results in a filter having improved capacity, which extends the life of the filter medium, as compared to a filter without the compositional gradient. The present invention also provides a method of removing particles from a fluid containing particles. The method of the present invention includes contacting the fluid containing particles with the filter medium of having the two layers described above in a manner such that the fluid containing particles is passed through the first layer of the filter medium before the second layer.
PCT/US2003/007650 2002-04-26 2003-03-11 Coform filter media having increased particle loading capacity WO2003090892A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP20030721362 EP1499407A2 (en) 2002-04-26 2003-03-11 Coform filter media having increased particle loading capacity
CA 2482407 CA2482407A1 (en) 2002-04-26 2003-03-11 Coform filter media having increased particle loading capacity
AU2003224679A AU2003224679A1 (en) 2002-04-26 2003-03-11 Coform filter media having increased particle loading capacity
MXPA04010448A MXPA04010448A (en) 2002-04-26 2003-03-11 Coform filter media having increased particle loading capacity.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/133,599 2002-04-26
US10/133,599 US20030203694A1 (en) 2002-04-26 2002-04-26 Coform filter media having increased particle loading capacity

Publications (2)

Publication Number Publication Date
WO2003090892A2 WO2003090892A2 (en) 2003-11-06
WO2003090892A3 true WO2003090892A3 (en) 2003-12-04

Family

ID=29249004

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2003/007650 WO2003090892A2 (en) 2002-04-26 2003-03-11 Coform filter media having increased particle loading capacity

Country Status (6)

Country Link
US (1) US20030203694A1 (en)
EP (1) EP1499407A2 (en)
AU (1) AU2003224679A1 (en)
CA (1) CA2482407A1 (en)
MX (1) MXPA04010448A (en)
WO (1) WO2003090892A2 (en)

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JP5179384B2 (en) * 2006-02-21 2013-04-10 ファイバーウェブ・シンプソンヴィル，インコーポレイテッド Extensible absorbent composite
DE102006017553B3 (en) * 2006-04-13 2007-12-27 Eurofilters N.V. Filter bag for a vacuum cleaner
US20090288558A1 (en) * 2006-05-16 2009-11-26 Duello Leonard E Nonwovens of controlled stiffness and retained foldability
US20080120954A1 (en) * 2006-05-16 2008-05-29 Duello Leonard E Tackified And Non-Tackified Nonwovens Of Controlled Stiffness And Retained Foldability
EP2165747B8 (en) * 2008-09-19 2011-10-05 Pall Corporation Depth filter sheet material and method for manufacturing the same
US8236082B2 (en) * 2009-06-19 2012-08-07 Hollingsworth & Vose Company Flutable fiber webs with high dust holding capacity
CN101721856B (en) * 2009-12-17 2011-08-24 天津泰达洁净材料有限公司 Preparation method and product of PLA/PP double-component fiber filtering material
WO2012175656A1 (en) * 2011-06-24 2012-12-27 Brita Gmbh Method and apparatus for use in manufacturing a filter element
CN105274903B (en) * 2015-10-22 2018-02-23 南京航空航天大学 A kind of gradient distribution two-component glass fiber filter paper and preparation method thereof
US10543441B2 (en) * 2016-12-15 2020-01-28 Hollingsworth & Vose Company Filter media including adhesives and/or oleophobic properties
WO2019104240A1 (en) 2017-11-22 2019-05-31 Extrusion Group, LLC Meltblown die tip assembly and method
CN109745774A (en) * 2019-02-21 2019-05-14 江苏奥凯环境技术有限公司 The production method of needled filtering felt suitable for asphalt mixing
CN109772028A (en) * 2019-02-21 2019-05-21 江苏奥凯环境技术有限公司 The production method of asphalt mixing needled filtering felt
MX2022013286A (en) * 2020-04-23 2023-02-14 Kimberly Clark Co Nonwoven web containing a high strength spunblown layer.

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Also Published As

Publication number Publication date
AU2003224679A8 (en) 2003-11-10
CA2482407A1 (en) 2003-11-06
US20030203694A1 (en) 2003-10-30
AU2003224679A1 (en) 2003-11-10
EP1499407A2 (en) 2005-01-26
MXPA04010448A (en) 2004-12-13
WO2003090892A2 (en) 2003-11-06

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