CN113577910A - 过滤介质、过滤元件和过滤方法 - Google Patents

过滤介质、过滤元件和过滤方法 Download PDF

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Publication number
CN113577910A
CN113577910A CN202110716746.2A CN202110716746A CN113577910A CN 113577910 A CN113577910 A CN 113577910A CN 202110716746 A CN202110716746 A CN 202110716746A CN 113577910 A CN113577910 A CN 113577910A
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CN
China
Prior art keywords
layer
filter
filtration
filter media
fibers
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.)
Pending
Application number
CN202110716746.2A
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English (en)
Chinese (zh)
Inventor
高琼
R·P·德琼
G·S·托尼斯
G·M·伊兹
J·A·蒂芙尼
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.)
Donaldson Co Inc
Original Assignee
Donaldson Co Inc
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 Donaldson Co Inc filed Critical Donaldson Co Inc
Publication of CN113577910A publication Critical patent/CN113577910A/zh
Pending legal-status Critical Current

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    • 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
    • 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
    • B01D39/20—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
    • 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
    • B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
    • 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
    • B01D2239/06—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
    • 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
    • B01D2239/06—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
    • 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
    • B01D2239/0681—The layers being joined by gluing
    • 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
    • B01D2239/1258—Permeability
    • 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
    • B01D2239/1266—Solidity
    • 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
    • B01D2239/1275—Stiffness

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Filtering Materials (AREA)
  • Nonwoven Fabrics (AREA)
  • Glass Compositions (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
CN202110716746.2A 2016-05-13 2017-05-05 过滤介质、过滤元件和过滤方法 Pending CN113577910A (zh)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US201662336433P 2016-05-13 2016-05-13
US62/336,433 2016-05-13
US201662351401P 2016-06-17 2016-06-17
US62/351,401 2016-06-17
CN201780028739.5A CN109562311B (zh) 2016-05-13 2017-05-05 过滤介质、过滤元件和过滤方法

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CN201780028739.5A Division CN109562311B (zh) 2016-05-13 2017-05-05 过滤介质、过滤元件和过滤方法

Publications (1)

Publication Number Publication Date
CN113577910A true CN113577910A (zh) 2021-11-02

Family

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Family Applications (2)

Application Number Title Priority Date Filing Date
CN202110716746.2A Pending CN113577910A (zh) 2016-05-13 2017-05-05 过滤介质、过滤元件和过滤方法
CN201780028739.5A Active CN109562311B (zh) 2016-05-13 2017-05-05 过滤介质、过滤元件和过滤方法

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Application Number Title Priority Date Filing Date
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Country Status (13)

Country Link
US (4) US11161070B2 (enExample)
EP (2) EP3454967B1 (enExample)
JP (2) JP7313152B2 (enExample)
KR (2) KR20240005169A (enExample)
CN (2) CN113577910A (enExample)
AU (1) AU2017262577B2 (enExample)
BR (1) BR112018073436B1 (enExample)
CA (1) CA3023824C (enExample)
MX (2) MX2018013755A (enExample)
RU (1) RU2737910C2 (enExample)
SA (1) SA518400427B1 (enExample)
WO (1) WO2017196653A1 (enExample)
ZA (1) ZA201808230B (enExample)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3454967B1 (en) * 2016-05-13 2021-04-07 Donaldson Company, Inc. Filter media
EP3724381B1 (en) 2017-12-13 2024-11-06 Donaldson Company, Inc. Oleophobic polyamide fine fibers, methods, filter media, and filter elements
JP7112228B2 (ja) * 2018-03-30 2022-08-03 日本無機株式会社 エアフィルタ用濾材、及びエアフィルタ
WO2020033564A1 (en) 2018-08-10 2020-02-13 Bha Altair, Llc Filtration media with extended surface area
CN114040811A (zh) 2019-03-28 2022-02-11 唐纳森公司 具有改进的灰尘负载的过滤介质
CN109955548A (zh) * 2019-04-08 2019-07-02 安徽福仕达网带有限公司 一种高效高支撑结构多圆盘滤网
EP3721965A1 (de) * 2019-04-10 2020-10-14 Carl Freudenberg KG Filtermedium mit vliesstoff als einlagiger faserverbund und verfahren zur herstellung eines solchen filtermediums
EP4041432A1 (en) 2019-10-08 2022-08-17 Donaldson Company, Inc. Filter medium comprising a fine fiber layer
US11339750B2 (en) 2020-04-29 2022-05-24 Deere & Company Combustion air filtration apparatus
CN116528961A (zh) * 2020-09-28 2023-08-01 唐纳森公司 具有改进的灰尘负载的过滤器元件
US20220193588A1 (en) * 2020-12-18 2022-06-23 Hollingsworth & Vose Company Undulated filter media
US20230312394A1 (en) * 2020-12-23 2023-10-05 Nitto Boseki Co., Ltd. Glass composition for glass fiber, glass fiber, glass fiber woven fabric, and glass fiber reinforced resin composition
KR102270152B1 (ko) * 2020-12-28 2021-06-28 주식회사 한새 나노섬유를 이용한 세척가능한 미세먼지필터 모듈
WO2023025774A2 (en) * 2021-08-27 2023-03-02 Johns Manville Corrugated filter media
WO2023062964A1 (ja) * 2021-10-15 2023-04-20 北越コーポレーション株式会社 高性能エアフィルタ用濾材及びその製造方法
KR20230071096A (ko) 2021-11-15 2023-05-23 주식회사 마이크로원 Ptfe 멤브레인 다층구조를 갖는 캐빈필터 유닛
DE102021130827A1 (de) * 2021-11-24 2023-05-25 Eos Gmbh Electro Optical Systems Filtereinrichtung
DE102022134516A1 (de) 2022-12-22 2024-06-27 Neenah Gessner Gmbh Filtermedien und Verfahren zu deren Herstellung
CN120693204A (zh) * 2023-02-13 2025-09-23 高琼 复合过滤介质和方法
KR20240165111A (ko) 2023-05-15 2024-11-22 주식회사 마이크로원 Voc 차폐 기능을 갖는 ptfe 멤브레인 다층구조 캐빈필터
CN119793069B (zh) * 2025-03-11 2025-09-12 江苏奥凯环境技术有限公司 具有抗结露和自清洁性能的除尘过滤材料及其制备方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101939072A (zh) * 2007-11-09 2011-01-05 霍林斯沃思和沃斯有限公司 熔喷过滤介质
CN105209147A (zh) * 2013-03-15 2015-12-30 唐纳森公司 过滤介质和元件

Family Cites Families (55)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3341497A (en) 1966-01-21 1967-09-12 Minnesota Mining & Mfg Organic solvent soluble perfluorocarbon copolymers
JPS6012886B2 (ja) * 1974-07-05 1985-04-04 ダナルドソン、カムパニ、インコーパレイテイド 逆向き噴流清掃手段を備えた空気清掃装置
US4204846A (en) * 1978-05-26 1980-05-27 Donaldson Company, Inc. Self-cleaning air filter
JPS56129024U (enExample) 1980-03-03 1981-10-01
US5306321A (en) 1992-07-07 1994-04-26 Donaldson Company, Inc. Layered air filter medium having improved efficiency and pleatability
US6196708B1 (en) 1998-05-14 2001-03-06 Donaldson Company, Inc. Oleophobic laminated articles, assemblies of use, and methods
US6090173A (en) 1998-08-07 2000-07-18 Donaldson Company, Inc. Air filter assembly for filtering air with particulate matter
DE19919809C2 (de) * 1999-04-30 2003-02-06 Fibermark Gessner Gmbh & Co Staubfilterbeutel, enthaltend Nanofaservlies
US6800117B2 (en) 2000-09-05 2004-10-05 Donaldson Company, Inc. Filtration arrangement utilizing pleated construction and method
US6743273B2 (en) 2000-09-05 2004-06-01 Donaldson Company, Inc. Polymer, polymer microfiber, polymer nanofiber and applications including filter structures
US20020092423A1 (en) 2000-09-05 2002-07-18 Gillingham Gary R. Methods for filtering air for a gas turbine system
US6716274B2 (en) 2000-09-05 2004-04-06 Donaldson Company, Inc. Air filter assembly for filtering an air stream to remove particulate matter entrained in the stream
US6746517B2 (en) 2000-09-05 2004-06-08 Donaldson Company, Inc. Filter structure with two or more layers of fine fiber having extended useful service life
US6673136B2 (en) 2000-09-05 2004-01-06 Donaldson Company, Inc. Air filtration arrangements having fluted media constructions and methods
RU2188694C2 (ru) * 2000-11-23 2002-09-10 Научно-исследовательский физико-химический институт им. Л.Я.Карпова Фильтрующий материал
RU2300543C2 (ru) 2001-05-31 2007-06-10 Дональдсон Компани, Инк. Составы тонкого волокна, способы их получения, способ изготовления тонковолокнистого материала
US20050160711A1 (en) * 2004-01-28 2005-07-28 Alain Yang Air filtration media
US6872311B2 (en) 2002-01-31 2005-03-29 Koslow Technologies Corporation Nanofiber filter media
US20040038014A1 (en) 2002-08-20 2004-02-26 Donaldson Company, Inc. Fiber containing filter media
CN100484607C (zh) 2003-06-19 2009-05-06 唐纳森公司 可清洁的高效过滤介质结构及其应用
US7008465B2 (en) 2003-06-19 2006-03-07 Donaldson Company, Inc. Cleanable high efficiency filter media structure and applications for use
US8042694B2 (en) 2004-11-02 2011-10-25 Baldwin Filters, Inc. Gathered filter media for an air filter and method of making same
US8021457B2 (en) 2004-11-05 2011-09-20 Donaldson Company, Inc. Filter media and structure
US8057567B2 (en) 2004-11-05 2011-11-15 Donaldson Company, Inc. Filter medium and breather filter structure
WO2006052732A2 (en) * 2004-11-05 2006-05-18 Donaldson Company, Inc. Filter medium and structure
US8177875B2 (en) 2005-02-04 2012-05-15 Donaldson Company, Inc. Aerosol separator; and method
US20070220852A1 (en) 2006-03-27 2007-09-27 Hollingsworth And Vose Company High Capacity Filter Medium
US7754041B2 (en) 2006-07-31 2010-07-13 3M Innovative Properties Company Pleated filter with bimodal monolayer monocomponent media
JP5346301B2 (ja) 2007-02-28 2013-11-20 ホリングワース・アンド・ボーズ・カンパニー 波形フィルタ材およびフィルタ要素
JP2008221073A (ja) 2007-03-09 2008-09-25 Toyobo Co Ltd 極細繊維濾材およびその製造方法
US7837756B2 (en) * 2007-04-05 2010-11-23 Aaf-Mcquay Inc. Filter with ePTFE and method of forming
DE102007023806A1 (de) * 2007-05-21 2008-11-27 Carl Freudenberg Kg Lagenverbund zur Verwendung in einem Luftfilter
CN101820968A (zh) * 2007-07-26 2010-09-01 3M创新有限公司 高度带电且电荷稳定的纳米纤维网
DE202007013215U1 (de) 2007-09-19 2009-02-12 Mann+Hummel Gmbh Getriebeölfilter mit abströmseitiger Meltblownlage
US20110064928A1 (en) * 2008-05-05 2011-03-17 Avgol Industries 1953 Ltd Nonwoven material
US8673040B2 (en) 2008-06-13 2014-03-18 Donaldson Company, Inc. Filter construction for use with air in-take for gas turbine and methods
CN102458608B (zh) 2009-06-12 2016-08-31 克拉克空气过滤产品有限公司 无薄膜过滤器和/或用于过滤器的整体框架
US20110210061A1 (en) * 2010-02-26 2011-09-01 Clarcor Inc. Compressed nanofiber composite media
US8414676B2 (en) 2010-02-26 2013-04-09 General Electric Company Filter device for use with machine
JP5792545B2 (ja) * 2011-07-25 2015-10-14 国立大学法人信州大学 バグフィルター用濾材
KR102280136B1 (ko) 2011-08-12 2021-07-22 도널드선 컴파니 인코포레이티드 멜트-블로운 섬유를 포함하는 액체 여과 매질
US8887719B2 (en) * 2011-12-15 2014-11-18 3M Innovative Properties Company Air filtration device having tuned air distribution system
US9771904B2 (en) 2012-04-25 2017-09-26 Fibrway Materials Science & Technology Development Co., Ltd. Self-cleaning air filtering material and preparation method therefor
US9149749B2 (en) * 2012-11-13 2015-10-06 Hollingsworth & Vose Company Pre-coalescing multi-layered filter media
US11090590B2 (en) * 2012-11-13 2021-08-17 Hollingsworth & Vose Company Pre-coalescing multi-layered filter media
KR101484510B1 (ko) * 2013-08-01 2015-01-21 (주)에프티이앤이 내열성이 향상된 기재 양면 나노섬유 필터여재 및 이의 제조방법
EP2964363B1 (en) 2013-03-09 2018-10-10 Donaldson Company, Inc. Nonwoven filtration media including microfibrillated cellulose fibers
BR112015022800B1 (pt) 2013-03-15 2021-11-23 Donaldson Company, Inc Cartucho filtrante
US9492775B2 (en) 2013-03-15 2016-11-15 Donaldson Company, Inc. Air filtration media, media constructions and methods
DE102013008391A1 (de) 2013-04-23 2014-10-23 Mann + Hummel Gmbh Filtermedium, insbesondere Luftfiltermedium, sowie Filterelement, insbesondere Luftfilterelement, mit einem Filtermedium
CN104117288B (zh) 2013-04-25 2017-07-18 财团法人工业技术研究院 过滤材料及其制造方法
US9474994B2 (en) 2013-06-17 2016-10-25 Donaldson Company, Inc. Filter media and elements
KR20150122282A (ko) * 2014-04-22 2015-11-02 삼성전기주식회사 여과 필터 및 여과 필터 카트리지
US10828587B2 (en) * 2015-04-17 2020-11-10 Hollingsworth & Vose Company Stable filter media including nanofibers
EP3454967B1 (en) * 2016-05-13 2021-04-07 Donaldson Company, Inc. Filter media

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101939072A (zh) * 2007-11-09 2011-01-05 霍林斯沃思和沃斯有限公司 熔喷过滤介质
CN105209147A (zh) * 2013-03-15 2015-12-30 唐纳森公司 过滤介质和元件

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RU2018141964A3 (enExample) 2020-06-16
SA518400427B1 (ar) 2022-11-14
WO2017196653A1 (en) 2017-11-16
US20220118387A1 (en) 2022-04-21
US20250153079A1 (en) 2025-05-15
CA3023824A1 (en) 2017-11-16
JP2019516545A (ja) 2019-06-20
KR102618766B1 (ko) 2023-12-28
EP3854469A1 (en) 2021-07-28
AU2017262577A1 (en) 2018-11-29
MX2018013755A (es) 2019-03-28
US11161070B2 (en) 2021-11-02
US11845027B2 (en) 2023-12-19
KR20190008276A (ko) 2019-01-23
US12233367B2 (en) 2025-02-25
JP2022188110A (ja) 2022-12-20
US20190255473A1 (en) 2019-08-22
CN109562311B (zh) 2021-07-16
MX2022013881A (es) 2023-02-01
RU2018141964A (ru) 2020-06-15
US20240139662A1 (en) 2024-05-02
RU2737910C2 (ru) 2020-12-04
CN109562311A (zh) 2019-04-02
KR20240005169A (ko) 2024-01-11
EP3454967B1 (en) 2021-04-07
EP3454967A1 (en) 2019-03-20
BR112018073436B1 (pt) 2022-10-04
JP7591013B2 (ja) 2024-11-27
AU2017262577B2 (en) 2021-05-13
ZA201808230B (en) 2019-08-28
BR112018073436A2 (pt) 2019-03-26
JP7313152B2 (ja) 2023-07-24
CA3023824C (en) 2024-02-13

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