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US20170312672A1 - Self-supporting pleatable fibrous web especially useful as oil filter media and oil filter comprising the same - Google Patents

Self-supporting pleatable fibrous web especially useful as oil filter media and oil filter comprising the same Download PDF

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Publication number
US20170312672A1
US20170312672A1 US15/523,541 US201515523541A US2017312672A1 US 20170312672 A1 US20170312672 A1 US 20170312672A1 US 201515523541 A US201515523541 A US 201515523541A US 2017312672 A1 US2017312672 A1 US 2017312672A1
Authority
US
United States
Prior art keywords
fibers
fibrous
fibrous web
filtration media
oil
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.)
Abandoned
Application number
US15/523,541
Other languages
English (en)
Inventor
David Alan TOPOLENSKI
Crawford Garland ARRINGTON, IV
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.)
Ahlstrom Corp
Original Assignee
Ahlstrom Munksjo Oyj
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 Ahlstrom Munksjo Oyj filed Critical Ahlstrom Munksjo Oyj
Priority to US15/523,541 priority Critical patent/US20170312672A1/en
Publication of US20170312672A1 publication Critical patent/US20170312672A1/en
Assigned to AHLSTROM-MUNKSJÖ OYJ reassignment AHLSTROM-MUNKSJÖ OYJ ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ARRINGTON, CRAWFORD GARLAND, TOPOLENSKI, DAVID ALAN
Assigned to AHLSTROM OYJ reassignment AHLSTROM OYJ CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: AHLSTROM-MUNKSJO OYJ
Assigned to AHLSTROM OYJ reassignment AHLSTROM OYJ CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: AHLSTROM-MUNKSJÖ OYJ
Abandoned legal-status Critical Current

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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
    • B01D39/14—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
    • B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
    • B01D2239/02—Types of fibres, filaments or particles, self-supporting or supported materials
    • B01D2239/025—Types of fibres, filaments or particles, self-supporting or supported materials comprising nanofibres
    • 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
    • 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
    • B01D2239/08—Special characteristics of binders
    • B01D2239/086—Binders between particles or fibres
    • 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
    • B01D2239/10—Filtering material manufacturing
    • 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
    • B01D2239/1233—Fibre diameter
    • 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
    • B01D2239/1291—Other parameters
    • 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
    • B01D39/20—Other self-supporting filtering material ; Other filtering material of inorganic material, e.g. asbestos paper, metallic filtering material of non-woven wires
    • B01D39/2003—Glass or glassy material
    • B01D39/2017—Glass or glassy material the material being filamentary or fibrous
    • B01D39/2024—Glass or glassy material the material being filamentary or fibrous otherwise bonded, e.g. by resins

Definitions

  • Conventional oil filter are typically comprised of a pleated sheet of filtration media and a backing structure.
  • Conventional filtration media exhibit relatively low stiffness and has poor mechanical strength in terms of tensile strength and burst strength.
  • the filtration media sheet of a conventional oil filter are therefore used together with a metal mesh or other type of support structure, which forms a backing for the filtration media sheet and assists in maintaining the pleat shape when used in the end application.
  • the filtration media sheet tends to burst over time on exposure to engine oil at the temperatures typically encountered in a combustion engine, e.g., temperatures of about 125° C. to about 135° C.
  • the fibrous webs of the embodiments disclosed herein may be made by conventional wet-laid sheet techniques whereby a fibrous slurry comprised of synthetic fibers having from about 2 wt. % to about 65 wt. %, e.g., from about 10 to about 50 wt. %, based on total weight of fibers in the sheet, of thermoplastic synthetic microfibers having an average diameter of less than 5 ⁇ m are dewatered.
  • thermoplastic microfiber that may be employed in the fibrous webs disclosed herein is commercially available from Eastman Chemical Company of Kingsport, Tenn. under the tradename CYPHREXTM 10001 PET microfiber. Such a preferred thermoplastic microfiber will have a substantially round 2.5 ⁇ m diameter cross-section and a 1.5 mm length.
  • the slurry is then transferred to a moving wire screen where water is removed by means of gravity and suction.
  • the fibers form into a fibrous nonwoven web or sheet having characteristics determined by a number of process variables, including for example, the slurry flow rate, machine speed, and drainage parameters.
  • the formed sheet may optionally be compressed while still wet so as to compact the paper and/or modify its surface characteristics.
  • the wet paper mat is then moved through a drying section comprised of heated rollers (or “cans” in art parlance) where most of the remaining entrained water is removed.
  • the dried web may then have a binder resin applied by any conventional means, such as dipping, spray coating, roller (gravure) application and the like. Heat may then subsequently be applied to dry the web.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Filtering Materials (AREA)
  • Nonwoven Fabrics (AREA)
US15/523,541 2014-10-31 2015-10-30 Self-supporting pleatable fibrous web especially useful as oil filter media and oil filter comprising the same Abandoned US20170312672A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US15/523,541 US20170312672A1 (en) 2014-10-31 2015-10-30 Self-supporting pleatable fibrous web especially useful as oil filter media and oil filter comprising the same

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US201462073066P 2014-10-31 2014-10-31
FI20146043 2014-11-28
FI20146043 2014-11-28
PCT/US2015/058306 WO2016070039A1 (en) 2014-10-31 2015-10-30 Self-supporting pleatable fibrous web especially useful as oil filter media and oil filter comprising the same
US15/523,541 US20170312672A1 (en) 2014-10-31 2015-10-30 Self-supporting pleatable fibrous web especially useful as oil filter media and oil filter comprising the same

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2015/075318 A-371-Of-International WO2016066825A1 (en) 2014-10-31 2015-10-30 Self supporting pleatable web and an oil filter including the same

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US18/055,641 Continuation US12030006B2 (en) 2014-10-31 2022-11-15 Self-supporting pleatable fibrous web especially useful as oil filter media and oil filter comprising the same

Publications (1)

Publication Number Publication Date
US20170312672A1 true US20170312672A1 (en) 2017-11-02

Family

ID=55856648

Family Applications (4)

Application Number Title Priority Date Filing Date
US15/523,541 Abandoned US20170312672A1 (en) 2014-10-31 2015-10-30 Self-supporting pleatable fibrous web especially useful as oil filter media and oil filter comprising the same
US15/523,480 Active 2036-10-14 US10765979B2 (en) 2014-10-31 2015-10-30 Self supporting pleatable web and an oil filter including the same
US16/945,663 Active 2036-02-25 US11684880B2 (en) 2014-10-31 2020-07-31 Self supporting pleatable web and an oil filter including the same
US18/055,641 Active US12030006B2 (en) 2014-10-31 2022-11-15 Self-supporting pleatable fibrous web especially useful as oil filter media and oil filter comprising the same

Family Applications After (3)

Application Number Title Priority Date Filing Date
US15/523,480 Active 2036-10-14 US10765979B2 (en) 2014-10-31 2015-10-30 Self supporting pleatable web and an oil filter including the same
US16/945,663 Active 2036-02-25 US11684880B2 (en) 2014-10-31 2020-07-31 Self supporting pleatable web and an oil filter including the same
US18/055,641 Active US12030006B2 (en) 2014-10-31 2022-11-15 Self-supporting pleatable fibrous web especially useful as oil filter media and oil filter comprising the same

Country Status (7)

Country Link
US (4) US20170312672A1 (ko)
EP (2) EP3212303B1 (ko)
KR (2) KR102298572B1 (ko)
CN (4) CN112774315B (ko)
BR (2) BR112017008698B1 (ko)
MX (2) MX2017005585A (ko)
WO (2) WO2016066825A1 (ko)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10913022B2 (en) 2017-03-29 2021-02-09 Knowlton Technologies, Llc Process for utilizing a high efficiency synthetic filter media
US20210238032A1 (en) * 2018-09-07 2021-08-05 3M Innovative Properties Company Filter assembly

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112774315B (zh) * 2014-10-31 2022-10-18 奥斯龙-明士克公司 特别可用作滤油器介质的自支撑可起褶纤维性幅材和包含其的滤油器
WO2018184045A1 (en) * 2017-04-03 2018-10-11 Lenzing Ag A nonwoven web designed for use as a hot cooking oil filter media
US11207624B2 (en) * 2017-07-31 2021-12-28 Qiong Gao High performance media for filtration and others applications
US20210086116A1 (en) * 2018-04-16 2021-03-25 Ahlstrom-Munksjö Oyj High burst strength wet-laid nonwoven filtration media and process for producing same
DE102019100468A1 (de) * 2019-01-10 2020-07-16 Neenah Gessner Gmbh Filtermedium für Motorluftfilter
CN110523141B (zh) * 2019-07-26 2021-08-17 杭州特种纸业有限公司 一种空气滤材用骨架
CN110448973B (zh) * 2019-08-07 2021-09-17 九江七所精密机电科技有限公司 一种锥形筒式空气滤芯及其制作工艺
CN111254753B (zh) * 2020-03-17 2022-05-31 珠海菲伯过滤材料有限公司 一种高效抗水空气过滤材料及其制备方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090324926A1 (en) * 2008-06-30 2009-12-31 Weyerhaeuser Co. Nonwoven lyocell fiber webs for filtration
US20100187171A1 (en) * 2009-01-28 2010-07-29 Donaldson Company, Inc. Fibrous Media
US20140130469A1 (en) * 2012-11-13 2014-05-15 Hollingsworth & Vose Company Multi-layered filter media

Family Cites Families (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3288299A (en) 1963-07-05 1966-11-29 Fram Corp Oil filter cartridge
BE795372A (fr) * 1972-03-01 1973-05-29 Knecht Filterwerke Gmbh Cartouche filtrante a element filtrant plie en etoile pour filtre a air de moteurs a combustion interne et moteurs analogues
US3912631A (en) 1972-06-09 1975-10-14 William C Turman Oil filter and adapter
JPS60179307U (ja) * 1984-05-11 1985-11-28 東京濾器株式会社 フイルタエレメント
US6254653B1 (en) * 1999-10-08 2001-07-03 Aaf International Pleated fluid filter medium blend
JP2001129327A (ja) * 1999-11-05 2001-05-15 Osaka Gas Co Ltd 耐熱フィルター
US20020092423A1 (en) * 2000-09-05 2002-07-18 Gillingham Gary R. Methods for filtering air for a gas turbine system
US20020148776A1 (en) 2001-01-30 2002-10-17 Frank Cousart Water filtration media and methods of making same
US7438812B2 (en) * 2001-04-10 2008-10-21 Parker-Hannifin Corporation Filter element and method of making
JP4388375B2 (ja) 2001-12-03 2009-12-24 ドナルドソン カンパニー，インコーポレイティド 波形の媒体シートを使用するフィルタエレメント
US6986799B2 (en) * 2002-08-21 2006-01-17 Romanow Enterprises, Inc. Recyclable air filter
US8057567B2 (en) 2004-11-05 2011-11-15 Donaldson Company, Inc. Filter medium and breather filter structure
BRPI0606842A2 (pt) * 2005-02-04 2009-07-21 Donaldson Co Inc separador de aerossol
JP2008538532A (ja) * 2005-04-22 2008-10-30 スリーエム イノベイティブ プロパティズ カンパニー 車両客室エアフィルター装置
DE102005058612B4 (de) * 2005-12-07 2008-07-31 Carl Freudenberg Kg Filterelement und Anordnung
US7582132B2 (en) * 2006-05-24 2009-09-01 Johns Manville Nonwoven fibrous mat for MERV filter and method
US7608125B2 (en) 2006-05-24 2009-10-27 Johns Manville Nonwoven fibrous mat for MERV filter and method of making
US20100000693A1 (en) * 2006-10-31 2010-01-07 Basf Se Method for producing a multi layer fiber web from cellulose fibers
US8236082B2 (en) 2009-06-19 2012-08-07 Hollingsworth & Vose Company Flutable fiber webs with high dust holding capacity
US20120175298A1 (en) * 2010-10-21 2012-07-12 Eastman Chemical Company High efficiency filter
US9662600B2 (en) * 2012-03-09 2017-05-30 Ahlstrom Corporation High efficiency and high capacity glass-free fuel filtration media and fuel filters and methods employing the same
CN112774315B (zh) * 2014-10-31 2022-10-18 奥斯龙-明士克公司 特别可用作滤油器介质的自支撑可起褶纤维性幅材和包含其的滤油器

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090324926A1 (en) * 2008-06-30 2009-12-31 Weyerhaeuser Co. Nonwoven lyocell fiber webs for filtration
US20100187171A1 (en) * 2009-01-28 2010-07-29 Donaldson Company, Inc. Fibrous Media
US20140130469A1 (en) * 2012-11-13 2014-05-15 Hollingsworth & Vose Company Multi-layered filter media

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10913022B2 (en) 2017-03-29 2021-02-09 Knowlton Technologies, Llc Process for utilizing a high efficiency synthetic filter media
US10981096B2 (en) 2017-03-29 2021-04-20 Knowlton Technologies, Llc Process for making high efficiency synthetic filter media
US11547963B2 (en) 2017-03-29 2023-01-10 Knowlton Technologies, Llc High efficiency synthetic filter media
US20210238032A1 (en) * 2018-09-07 2021-08-05 3M Innovative Properties Company Filter assembly

Also Published As

Publication number Publication date
US11684880B2 (en) 2023-06-27
BR112017008698A2 (pt) 2017-12-26
US20170312671A1 (en) 2017-11-02
CN107106952B (zh) 2020-07-28
EP3212303A1 (en) 2017-09-06
US20230081040A1 (en) 2023-03-16
CN111905453A (zh) 2020-11-10
EP3212304A1 (en) 2017-09-06
CN106999817B (zh) 2021-01-12
CN112774315A (zh) 2021-05-11
WO2016070039A1 (en) 2016-05-06
CN112774315B (zh) 2022-10-18
US20210283540A1 (en) 2021-09-16
KR20170104444A (ko) 2017-09-15
KR102653334B1 (ko) 2024-03-29
KR20170106954A (ko) 2017-09-22
BR112017008520A2 (pt) 2018-01-09
KR102298572B1 (ko) 2021-09-06
WO2016066825A9 (en) 2017-05-26
BR112017008520B1 (pt) 2022-08-09
WO2016066825A1 (en) 2016-05-06
US10765979B2 (en) 2020-09-08
CN106999817A (zh) 2017-08-01
MX2017005585A (es) 2017-10-31
CN107106952A (zh) 2017-08-29
US12030006B2 (en) 2024-07-09
BR112017008698B1 (pt) 2022-08-16
EP3212303B1 (en) 2021-09-15
MX2017005584A (es) 2017-10-31

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