DE69512088T2 - Filter mit dichte gradient - Google Patents

Filter mit dichte gradient

Info

Publication number
DE69512088T2
DE69512088T2 DE69512088T DE69512088T DE69512088T2 DE 69512088 T2 DE69512088 T2 DE 69512088T2 DE 69512088 T DE69512088 T DE 69512088T DE 69512088 T DE69512088 T DE 69512088T DE 69512088 T2 DE69512088 T2 DE 69512088T2
Authority
DE
Germany
Prior art keywords
filter
density gradient
gradient
density
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.)
Expired - Fee Related
Application number
DE69512088T
Other languages
English (en)
Other versions
DE69512088D1 (de
Inventor
Peter Ellefson
David Wells
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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing 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 Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Application granted granted Critical
Publication of DE69512088D1 publication Critical patent/DE69512088D1/de
Publication of DE69512088T2 publication Critical patent/DE69512088T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • B01D39/08—Filter cloth, i.e. woven, knitted or interlaced material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/28016—Particle form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/08—Filter cloth, i.e. woven, knitted or interlaced material
    • B01D39/083—Filter cloth, i.e. woven, knitted or interlaced material of organic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/28023—Fibres or filaments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/28028—Particles immobilised within fibres or filaments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/28033—Membrane, sheet, cloth, pad, lamellar or mat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/28052—Several layers of identical or different sorbents stacked in a housing, e.g. in a column
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28054—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J20/28078—Pore diameter
    • B01J20/28085—Pore diameter being more than 50 nm, i.e. macropores
    • 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
    • B01D2239/0407—Additives and treatments of the filtering material comprising particulate additives, e.g. adsorbents
    • 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
    • B01D2239/0604—Arrangement of the fibres in the filtering material
    • B01D2239/0627—Spun-bonded
    • 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
    • B01D2239/12—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
DE69512088T 1995-02-01 1995-12-19 Filter mit dichte gradient Expired - Fee Related DE69512088T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/382,281 US5472600A (en) 1995-02-01 1995-02-01 Gradient density filter
PCT/US1995/016545 WO1996023572A1 (en) 1995-02-01 1995-12-19 Gradient density filter

Publications (2)

Publication Number Publication Date
DE69512088D1 DE69512088D1 (de) 1999-10-14
DE69512088T2 true DE69512088T2 (de) 2000-05-25

Family

ID=23508278

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69512088T Expired - Fee Related DE69512088T2 (de) 1995-02-01 1995-12-19 Filter mit dichte gradient

Country Status (8)

Country Link
US (1) US5472600A (de)
EP (1) EP0806979B1 (de)
JP (1) JP3670288B2 (de)
KR (1) KR100426526B1 (de)
AU (1) AU4524096A (de)
BR (1) BR9510447A (de)
DE (1) DE69512088T2 (de)
WO (1) WO1996023572A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011086104A1 (de) * 2011-11-10 2013-05-16 Mahle International Gmbh Filtermaterial

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US5911883A (en) * 1996-10-04 1999-06-15 Minnesota Mining And Manufacturing Company Flow-by solid phase extraction method
US20070017879A1 (en) * 1998-12-03 2007-01-25 Stephen Proulx Filtration cartridge and process for filtering a slurry
DE69907726T2 (de) * 1998-12-03 2004-02-26 Mykrolis Corp., Bedford Filterkartusche und verfahren zur filtration einer trübe
US6537614B1 (en) 1998-12-18 2003-03-25 Kimberly-Clark Worldwide, Inc. Cationically charged coating on hydrophobic polymer fibers with poly (vinyl alcohol) assist
US6274041B1 (en) 1998-12-18 2001-08-14 Kimberly-Clark Worldwide, Inc. Integrated filter combining physical adsorption and electrokinetic adsorption
DE60003202T2 (de) * 1999-09-17 2004-05-06 Mykrolis Corp., Bedford Verfahren und filter zur filtrierung eines schlammes
US6383783B1 (en) 1999-09-21 2002-05-07 3M Innovative Properties Company Nucleic acid isolation by adhering to hydrophobic solid phase and removing with nonionic surfactant
US7247245B1 (en) * 1999-12-02 2007-07-24 Entegris, Inc. Filtration cartridge and process for filtering a slurry
US6645388B2 (en) 1999-12-22 2003-11-11 Kimberly-Clark Corporation Leukocyte depletion filter media, filter produced therefrom, method of making same and method of using same
US20040191537A1 (en) * 2001-06-13 2004-09-30 Dieter Lubda Restricted access material for spme
US7892993B2 (en) 2003-06-19 2011-02-22 Eastman Chemical Company Water-dispersible and multicomponent fibers from sulfopolyesters
US8513147B2 (en) 2003-06-19 2013-08-20 Eastman Chemical Company Nonwovens produced from multicomponent fibers
US20040260034A1 (en) 2003-06-19 2004-12-23 Haile William Alston Water-dispersible fibers and fibrous articles
US7087437B2 (en) * 2003-09-16 2006-08-08 Vici Gig Harbor Group, Inc. Direct vial surface sorbent micro extraction device and method
US20060115383A1 (en) * 2003-09-16 2006-06-01 Vici Gig Harbor Group, Inc. Flow through well plate surface sorption extarction
US20060115384A1 (en) * 2003-09-16 2006-06-01 Vici Gig Harbor Group, Inc. Pipette tip surface sorption extraction
US20060110295A1 (en) * 2003-09-16 2006-05-25 Vici Gig Harbor Group, Inc. Closed well plate surface sorption extraction
KR20050046872A (ko) * 2003-11-14 2005-05-19 주식회사 중외엔비텍 집진장치용 멀티필터 및 그를 이용한 융모형 집진구조
US20050130177A1 (en) 2003-12-12 2005-06-16 3M Innovative Properties Company Variable valve apparatus and methods
US7939249B2 (en) 2003-12-24 2011-05-10 3M Innovative Properties Company Methods for nucleic acid isolation and kits using a microfluidic device and concentration step
US7727710B2 (en) 2003-12-24 2010-06-01 3M Innovative Properties Company Materials, methods, and kits for reducing nonspecific binding of molecules to a surface
US20050279695A1 (en) * 2004-06-17 2005-12-22 Millipore Corporation Disposable integral filter unit
US20050279694A1 (en) * 2004-06-17 2005-12-22 Gregory Straeffer Disposable integral filter unit
US8063264B2 (en) * 2005-08-26 2011-11-22 Michael Spearman Hemostatic media
FR2891747B1 (fr) * 2005-10-10 2007-12-14 Maco Pharma Sa Unite de filtration pour l'elimination selective d'une substance cible
AT502437B1 (de) * 2005-10-17 2007-09-15 Andritz Ag Maschf Filterelement
US20070123130A1 (en) * 2005-11-14 2007-05-31 L&P Property Management Company Multiple-layer, multiple-denier nonwoven fiber batt
ES2711543T3 (es) * 2009-02-10 2019-05-06 Horizon Tech Inc Disco de extracción de fase sólida y método de fabricación
US8512519B2 (en) 2009-04-24 2013-08-20 Eastman Chemical Company Sulfopolyesters for paper strength and process
GB0909732D0 (en) * 2009-06-05 2009-07-22 Hydrotechnik Uk Ltd Improvements in or relating to methods and apparatus for fluid filtration
DE102010011512A1 (de) * 2010-03-12 2011-09-15 Mann+Hummel Gmbh Filtermedium eines Filterelements, Filterelement und Verfahren zur Herstellung eines Filtermediums
US9273417B2 (en) 2010-10-21 2016-03-01 Eastman Chemical Company Wet-Laid process to produce a bound nonwoven article
US8808552B2 (en) * 2010-12-16 2014-08-19 Zenpure (Hangzhou) Co., Ltd. Stackable filter cup apparatus and method
CN103764250A (zh) * 2011-09-04 2014-04-30 安捷伦科技有限公司 用于流体测量的在流体流动方向上凹部尺寸减小的碎屑过滤器
US8871052B2 (en) 2012-01-31 2014-10-28 Eastman Chemical Company Processes to produce short cut microfibers
EP2969097A4 (de) * 2013-03-15 2016-11-09 Idex Health And Science Llc Verbessertes biokompatibles filter
JP6467589B2 (ja) * 2013-03-25 2019-02-13 パナソニックＩｐマネジメント株式会社 繊維構造体およびそれを用いたバイオチップ、細胞培養用基板、およびフィルター
US9617685B2 (en) 2013-04-19 2017-04-11 Eastman Chemical Company Process for making paper and nonwoven articles comprising synthetic microfiber binders
KR20160013173A (ko) 2013-08-30 2016-02-03 이엠디 밀리포어 코포레이션 추출가능물이 적은 대용량 복합 심층 필터 매질
US9605126B2 (en) 2013-12-17 2017-03-28 Eastman Chemical Company Ultrafiltration process for the recovery of concentrated sulfopolyester dispersion
US9598802B2 (en) 2013-12-17 2017-03-21 Eastman Chemical Company Ultrafiltration process for producing a sulfopolyester concentrate
US9829140B2 (en) 2015-01-08 2017-11-28 Idex Health & Science Llc Pulse dampener with automatic pressure-compensation
US9764290B2 (en) 2015-04-10 2017-09-19 Idex Health & Science Llc Degassing and de-bubbling pulse dampener
US10828587B2 (en) * 2015-04-17 2020-11-10 Hollingsworth & Vose Company Stable filter media including nanofibers
US10252200B2 (en) 2016-02-17 2019-04-09 Hollingsworth & Vose Company Filter media including a filtration layer comprising synthetic fibers
US11014030B2 (en) 2016-02-17 2021-05-25 Hollingsworth & Vose Company Filter media including flame retardant fibers
WO2018078106A1 (en) * 2016-10-28 2018-05-03 Preomics Gmbh Hydrophobicity-based flow prevention in sample preparation
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US11452959B2 (en) 2018-11-30 2022-09-27 Hollingsworth & Vose Company Filter media having a fine pore size distribution
CN112807848B (zh) * 2020-12-31 2022-04-08 泉州师范学院(石狮)生态智能织物工程技术研究院 一体式梯度过滤材料及其制备方法

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102011086104A1 (de) * 2011-11-10 2013-05-16 Mahle International Gmbh Filtermaterial
US9592465B2 (en) 2011-11-10 2017-03-14 Mahle International Gmbh Filter material

Also Published As

Publication number Publication date
BR9510447A (pt) 1998-05-19
AU4524096A (en) 1996-08-21
JPH10513113A (ja) 1998-12-15
EP0806979B1 (de) 1999-09-08
KR19980701834A (ko) 1998-06-25
MX9705645A (es) 1997-10-31
WO1996023572A1 (en) 1996-08-08
JP3670288B2 (ja) 2005-07-13
EP0806979A1 (de) 1997-11-19
US5472600A (en) 1995-12-05
KR100426526B1 (ko) 2004-07-23
DE69512088D1 (de) 1999-10-14

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