FR2391836A1 - Procede de preparation d'une membrane poreuse en fluorure de polyvinylidene - Google Patents

Procede de preparation d'une membrane poreuse en fluorure de polyvinylidene

Info

Publication number
FR2391836A1
FR2391836A1 FR7815593A FR7815593A FR2391836A1 FR 2391836 A1 FR2391836 A1 FR 2391836A1 FR 7815593 A FR7815593 A FR 7815593A FR 7815593 A FR7815593 A FR 7815593A FR 2391836 A1 FR2391836 A1 FR 2391836A1
Authority
FR
France
Prior art keywords
solvent
polymer
forming bath
membrane
degrees
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.)
Granted
Application number
FR7815593A
Other languages
English (en)
Other versions
FR2391836B1 (fr
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.)
EMD Millipore Corp
Original Assignee
Millipore Corp
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 Millipore Corp filed Critical Millipore Corp
Publication of FR2391836A1 publication Critical patent/FR2391836A1/fr
Application granted granted Critical
Publication of FR2391836B1 publication Critical patent/FR2391836B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/30—Polyalkenyl halides
    • B01D71/32—Polyalkenyl halides containing fluorine atoms
    • B01D71/34—Polyvinylidene fluoride
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0002—Organic membrane manufacture
    • B01D67/0009—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching
    • B01D67/0011—Casting solutions therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/20—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Dispersion Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

L'invention a pour objet un procédé continu pour la préparation de membranes microporeuses et de membranes pour filtration moléculaire, consistant à appliquer une couche d'une solution d'un polymère de fluorure de polyvinylidène sur une face d'une bande d'appui supportée rigidement afin d'obtenir une pellicule, puis à faire passer la bande dans un bain de formation dans lequel la membrane est formée. Pour préparer la solution de polymère, on dissout le polymère dans un véhicule liquide qui dissout jusqu'à 25 % du poids du polymère à au moins 50 degrés C, mais qui dissout sensiblement moins du polymère à 20 degrés C environ. On prépare la solution à 50 degrés C ou plus et on maintient le bain de formation à peu près à la température ambiante. Le bain de formation est un mélange du véhicule liquide solvant avec un second liquide miscible avec le solvant mais qui n'est pas un solvant pour le polymère. On maintient la pellicule plongée dans le bain de formation jusqu'à sa transformation en une membrane poreuse dont la structure poreuse est essentiellement complètement formée, on élimine le solvant de la pellicule par lavage et on le remplace par le liquide non-solvant. Après quoi on extrait le solvant résiduel de la membrane poreuse et, après séparation de la membrane d'avec la bande d'appui, on sèche la membrane. Le système solvant-non-solvant préféré pour le bain de formation est un système acétone-eau. Il est préférable que le bain de formation contienne d'environ 70 à 80 % d'acétone, en volume.
FR7815593A 1977-05-25 1978-05-25 Procede de preparation d'une membrane poreuse en fluorure de polyvinylidene Granted FR2391836A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/800,574 US4203848A (en) 1977-05-25 1977-05-25 Processes of making a porous membrane material from polyvinylidene fluoride, and products

Publications (2)

Publication Number Publication Date
FR2391836A1 true FR2391836A1 (fr) 1978-12-22
FR2391836B1 FR2391836B1 (fr) 1983-10-07

Family

ID=25178764

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7815593A Granted FR2391836A1 (fr) 1977-05-25 1978-05-25 Procede de preparation d'une membrane poreuse en fluorure de polyvinylidene

Country Status (6)

Country Link
US (1) US4203848A (fr)
JP (1) JPS5416382A (fr)
CA (1) CA1118560A (fr)
DE (1) DE2822266A1 (fr)
FR (1) FR2391836A1 (fr)
GB (1) GB1594640A (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2391837A1 (fr) * 1977-05-25 1978-12-22 Millipore Corp Procede de preparation d'une membrane poreuse en matiere polymere
EP0012557A1 (fr) * 1978-12-06 1980-06-25 Abcor, Inc. Membranes hydrophiles polymères, procédé pour leur préparation, leur application en tant que membranes ultrafiltrantes et membranes précurseurs susceptibles d'y être converties
EP0037836A1 (fr) * 1979-10-15 1981-10-21 Asahi Kasei Kogyo Kabushiki Kaisha Microfiltre a filament creux en resine de fluorure de polyvinylidene et son procede de production
EP0040670A2 (fr) * 1980-03-28 1981-12-02 Pennwalt Corporation Membrane poreuse en polymère de fluorure de vinylidène et procédé pour sa fabrication
FR2528361A1 (fr) * 1982-03-16 1983-12-16 Parker Pen Co Instrument d'ecriture et son procede de fabrication
EP0100552A2 (fr) * 1982-08-02 1984-02-15 Mitsubishi Rayon Co., Ltd. Membrane à base d'un matériau poreux hydrophobe rendue hydrophile et son procédé de fabrication
EP0175322A2 (fr) * 1984-09-17 1986-03-26 Mitsubishi Rayon Co., Ltd. Membrane rendue hydrophile à base d'un matériau poreux hydrophobe et son procédé de fabrication
EP0264333A2 (fr) * 1986-10-17 1988-04-20 Cytogen Corporation Méthode de préparation de compositions de protéine, chélateur et ion métallique, convenant à l'injection
EP0330072A2 (fr) * 1988-02-26 1989-08-30 SEPAREM S.p.A. Membrane semi-perméable de séparation de fluides, son procédé de fabrication et son utilisation en microfiltration, distillation et pour des tissus spéciaux
EP0335805A2 (fr) * 1988-04-01 1989-10-04 Terumo Kabushiki Kaisha Procédé de préparation de membrane poreuse et membrane poreuse préparée par un tel procédé

Families Citing this family (140)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU529368B2 (en) * 1978-05-15 1983-06-02 Pall Corporation Preparing polyamide membrane filter media and product
US4473473A (en) * 1979-02-14 1984-09-25 International Microporous Technology, Inc. Method and apparatus for distillation
US4419187A (en) * 1979-02-14 1983-12-06 International Power Technology, Inc. Apparatus and method for thermal membrane distillation
US4419242A (en) * 1980-02-04 1983-12-06 International Power Technology, Inc. Composite membrane for a membrane distillation system
US4384047A (en) * 1980-03-28 1983-05-17 Pennwalt Corporation Porous vinylidene fluoride polymer membrane and process for its preparation
US4353853A (en) * 1980-07-23 1982-10-12 Xerox Corporation Method for making reticulated foam structures
US4711793A (en) * 1980-10-27 1987-12-08 Cuno Incorporated Process for charge modifying a microphorous membrane
US4473474A (en) * 1980-10-27 1984-09-25 Amf Inc. Charge modified microporous membrane, process for charge modifying said membrane and process for filtration of fluid
US4673504A (en) * 1980-10-27 1987-06-16 Cuno Inc. Charge modified microporous membrane
US4708803A (en) * 1980-10-27 1987-11-24 Cuno Incorporated Liquid filtration using hydrophilic cationic isotropic microporous nylon membrane
US4737291A (en) * 1981-05-29 1988-04-12 Cuno Incorporated Charge modified microporous membrane
US4743418A (en) * 1981-05-29 1988-05-10 Cuno Incorporated Process for charge modifying a microporous membrane
US4434116A (en) 1981-06-26 1984-02-28 Diamond Shamrock Corporation Method for making a porous fluorinated polymer structure
US4645602A (en) * 1981-12-18 1987-02-24 Barnes Jr Robert G Process for producing reinforced microporous membrane
US4413074A (en) * 1982-01-25 1983-11-01 Brunswick Corporation Hydrophilic surfaces and process for making the same
EP0111499A1 (fr) * 1982-06-14 1984-06-27 Baxter Travenol Laboratories, Inc. Fibres creuses hydrophobes mouillables
US4598662A (en) * 1983-02-11 1986-07-08 International Microporous Technology, Inc. Drum coagulator for preparing microporous membranes
JPS6097001A (ja) * 1983-11-02 1985-05-30 Teijin Ltd ポリフツ化ビニリデン多孔性膜およびその製造方法
US4604208A (en) * 1983-12-29 1986-08-05 Chaokang Chu Liquid filtration using an anionic microporous membrane
JPS60232085A (ja) * 1984-04-28 1985-11-18 Kanegafuchi Chem Ind Co Ltd 無菌的濾過方法
US4717480A (en) * 1985-05-31 1988-01-05 Agency Of Industrial Science And Technology Method for separation of liquid mixture
US4980067A (en) * 1985-07-23 1990-12-25 Cuno, Inc. Polyionene-transformed microporous membrane
JPS62115043A (ja) * 1985-11-14 1987-05-26 Terumo Corp 多孔質膜の製造方法
DE3743440A1 (de) * 1987-12-21 1989-06-29 Gauri Kailash Kumar Verfahren zum trennen der geloesten und ungeloesten bestandteile von milch
US4863788A (en) * 1988-02-16 1989-09-05 Micropore Waterproof breathable microporous membrane with cellular foam adhesive
US5004543A (en) * 1988-06-21 1991-04-02 Millipore Corporation Charge-modified hydrophobic membrane materials and method for making the same
US5022990A (en) * 1989-01-12 1991-06-11 Asahi Kasei Kogyo Kabushiki Kaisha Polyvinylidene fluoride porous membrane and a method for producing the same
US5219101A (en) * 1989-06-01 1993-06-15 Pall Corporation Contamination-resistant dispensing and metering drop forming device
US5265770A (en) * 1989-06-01 1993-11-30 Pall Corporation Contamination-resistant dispensing and metering device
GB9011455D0 (en) * 1989-06-01 1990-07-11 Pall Corp Contamination-resistant dispensing and metering device
DE3923128A1 (de) * 1989-07-13 1991-01-24 Akzo Gmbh Flach- oder kapillarmembran auf der basis eines homogenen gemisches aus polyvinylidenfluorid und eines zweiten, durch chemische umsetzung hydrophilierbaren polymeren
US5013339A (en) * 1989-12-05 1991-05-07 The Dow Chemical Company Compositions useful for making microporous polyvinylidene fluoride membranes, and process
NL9000329A (nl) * 1990-02-12 1991-09-02 Stork Friesland Bv Hydrofiel membraan, werkwijze ter vervaardiging van een hydrofiel membraan.
US5489406A (en) * 1990-05-09 1996-02-06 Memtec Limited Method of making polyvinylidene fluoride membrane
US5252222A (en) * 1990-12-03 1993-10-12 Pall Corporation Filter for parenteral systems and method of using thereof
US5536413A (en) * 1990-12-03 1996-07-16 Pall Corporation Method for treating a parenteral emulsion-containing medicament fluid
US5637343A (en) * 1991-01-17 1997-06-10 Ryan, Jr.; Gregory B. Process for making coffee concentrate
US5198505A (en) * 1991-04-11 1993-03-30 Pall Corporation Uniform polyvinylidene difluoride membranes
US5143616A (en) * 1991-05-15 1992-09-01 Pall Corporation Composite structure and method of making
US5312576B1 (en) * 1991-05-24 2000-04-18 World Properties Inc Method for making particulate filled composite film
US5506049C1 (en) * 1991-05-24 2001-05-29 World Properties Inc Particulate filled composite film and method of making same
US5374453A (en) * 1991-05-24 1994-12-20 Rogers Corporation Particulate filled composite film and method of making same
US5207917A (en) * 1991-10-08 1993-05-04 Weaver Thomas J M Recycling and recovery of aqueous cleaner solutions
US5366631A (en) * 1992-02-10 1994-11-22 Pall Corporation Composite, supported fluorocarbon media
US6126826A (en) * 1992-05-06 2000-10-03 Whatman Inc. PVDF microporous membrane and method
EP0641249A1 (fr) * 1992-05-18 1995-03-08 Costar Corporation Membranes microporeuses soutenues
US5275738A (en) * 1992-06-10 1994-01-04 Pall Corporation Filter device for acids and process for filtering inorganic acids
CA2100643A1 (fr) * 1992-08-14 1994-02-15 Guido Sartori Membranes de polyolefines fluorees servant a la separation de composes aromatiques et de produits de saturation
US5565153A (en) * 1995-03-14 1996-10-15 Sartorius Ag Process of making polyvinylidene fluoride membranes
WO1997026134A1 (fr) * 1996-01-22 1997-07-24 Memtec America Corporation Membranes de difluorure de polyvinylidene hautement poreuses
US6074718A (en) * 1996-02-06 2000-06-13 Koch Membrane Systems, Inc. Self supporting hollow fiber membrane and method of construction
US5705344A (en) * 1996-03-14 1998-01-06 Tularik, Inc. High-throughput screening assay for inhibitors of nucleic acid helicases
CA2639642C (fr) 1996-12-20 2013-01-15 Siemens Water Technologies Corp. Procede de decapage
US6146747A (en) * 1997-01-22 2000-11-14 Usf Filtration And Separations Group Inc. Highly porous polyvinylidene difluoride membranes
AU736329B2 (en) * 1998-06-22 2001-07-26 Asahi Kasei Kabushiki Kaisha Porous polyvinylidene fluoride resin membrane and process for preparing the same
US6569619B1 (en) 1998-07-29 2003-05-27 Tularik, Inc. High-throughput in vitro screening assays for modulators of nucleic acid helicases
EP1282463B1 (fr) 2000-05-10 2010-10-27 Millipore Corporation Module d'electrodesionisation ameliore
US7229665B2 (en) * 2001-05-22 2007-06-12 Millipore Corporation Process of forming multilayered structures
EP2813278B1 (fr) 2000-05-24 2019-01-09 EMD Millipore Corporation Procede pour former des membranes multicouches
US7942274B2 (en) * 2000-05-24 2011-05-17 Millipore Corporation High-throughput asymmetric membrane
US6994789B2 (en) * 2000-08-07 2006-02-07 Cuno Incorporated Pre-metered, unsupported multilayer microporous membrane
US6736971B2 (en) * 2000-08-07 2004-05-18 Cuno Incorporated Pre-metered, unsupported multilayer microporous membrane
BR0113256A (pt) * 2000-08-07 2003-07-01 Cuno Inc Processo para formar uma membrana microporosa e membrana microporosa com múltiplas zonas e sem suporte
CN1095391C (zh) * 2000-10-27 2002-12-04 清华大学 聚合物共混超滤膜及其制备方法
AUPR143400A0 (en) * 2000-11-13 2000-12-07 Usf Filtration And Separations Group Inc. Modified membranes
AUPR421501A0 (en) 2001-04-04 2001-05-03 U.S. Filter Wastewater Group, Inc. Potting method
AUPR584301A0 (en) * 2001-06-20 2001-07-12 U.S. Filter Wastewater Group, Inc. Membrane polymer compositions
AUPR692401A0 (en) * 2001-08-09 2001-08-30 U.S. Filter Wastewater Group, Inc. Method of cleaning membrane modules
US7247238B2 (en) 2002-02-12 2007-07-24 Siemens Water Technologies Corp. Poly(ethylene chlorotrifluoroethylene) membranes
AUPS300602A0 (en) 2002-06-18 2002-07-11 U.S. Filter Wastewater Group, Inc. Methods of minimising the effect of integrity loss in hollow fibre membrane modules
US20040043224A1 (en) * 2002-08-30 2004-03-04 Shmuel Sternberg Enhanced hydrophobic membranes and methods for making such membranes
TW590982B (en) * 2002-09-27 2004-06-11 Agnitio Science & Technology I Micro-fluid driving device
CA2501628C (fr) 2002-10-10 2012-12-04 U.S. Filter Wastewater Group, Inc. Agencement de filtration et de lavage a contre-courant pour modules de membranes
AU2002953111A0 (en) 2002-12-05 2002-12-19 U. S. Filter Wastewater Group, Inc. Mixing chamber
AU2003903507A0 (en) * 2003-07-08 2003-07-24 U. S. Filter Wastewater Group, Inc. Membrane post-treatment
JP4611982B2 (ja) * 2003-08-29 2011-01-12 シーメンス・ウォーター・テクノロジーズ・コーポレーション 逆洗方法
EP1687078B1 (fr) * 2003-11-14 2012-03-14 Siemens Industry, Inc. Procede ameliore de nettoyage de module de filtre
US20100166961A1 (en) * 2004-01-20 2010-07-01 Beard Kirby W Production of high porosity open-cell membranes
JP2007518867A (ja) * 2004-01-20 2007-07-12 バウンドレス・コーポレーシヨン 高度に微孔質なポリマー及びそれらの製法及び使用法
WO2005092799A1 (fr) * 2004-03-26 2005-10-06 U.S. Filter Wastewater Group, Inc. Processus et appareil de purification d'eau impure au moyen d'une microfiltration ou d'une ultrafiltration associee a une osmose inversee
EP1747058A4 (fr) * 2004-04-22 2009-09-30 Siemens Water Tech Corp Appareil de filtration comprenant un bioreacteur a membrane et une cuve de traitement pour la digestion de matieres organiques
CA2571498A1 (fr) * 2004-07-02 2006-01-12 U.S. Filter Wastewater Group, Inc. Membrane de transfert de gaz
CA2571502A1 (fr) 2004-07-05 2006-01-12 U.S. Filter Wastewater Group, Inc. Membranes hydrophiliques
NZ588094A (en) 2004-08-20 2012-04-27 Siemens Water Tech Corp Potting head for hollow fibre filter module
WO2006026814A1 (fr) 2004-09-07 2006-03-16 Siemens Water Technologies Corp. Reduction des rejets liquides de decolmatage
EP1799334B1 (fr) * 2004-09-14 2013-12-11 Siemens Water Technologies LLC Procedes et appareil permettant d'eliminer des solides d'un module membranaire
JP4954880B2 (ja) 2004-09-15 2012-06-20 シーメンス・ウォーター・テクノロジーズ・コーポレーション 連続的に変化する通気
US7591950B2 (en) 2004-11-02 2009-09-22 Siemens Water Technologies Corp. Submerged cross-flow filtration
ES2365928T3 (es) * 2004-12-03 2011-10-13 Siemens Industry, Inc. Post-tratamiento de membranas.
NZ555987A (en) * 2004-12-24 2009-08-28 Siemens Water Tech Corp Simple gas scouring method and apparatus
SG150505A1 (en) * 2004-12-24 2009-03-30 Siemens Water Tech Corp Cleaning in membrane filtration systems
WO2006116797A1 (fr) 2005-04-29 2006-11-09 Siemens Water Technologies Corp. Systeme de nettoyage chimique pour filtre a membrane
US20080214687A1 (en) * 2005-06-20 2008-09-04 Heinz-Joachim Muller Cross Linking Treatment of Polymer Membranes
JP2009500169A (ja) 2005-07-14 2009-01-08 シーメンス・ウォーター・テクノロジーズ・コーポレーション 膜のモノ過硫酸塩処理
CN101287538B (zh) 2005-08-22 2013-03-06 西门子工业公司 使用歧管以减少回洗的水过滤装置
US20070138090A1 (en) 2005-10-05 2007-06-21 Jordan Edward J Method and apparatus for treating wastewater
WO2007044345A2 (fr) 2005-10-05 2007-04-19 Siemens Water Technologies Corp. Procede et appareil permettant de traiter des eaux usees
EP2700441A1 (fr) * 2005-12-09 2014-02-26 Siemens Industry, Inc. Processus de volume de lavage à contre-courant réduit
CN101370568A (zh) * 2006-01-12 2009-02-18 西门子水技术公司 过滤工艺中改进的运行方法
US7455765B2 (en) 2006-01-25 2008-11-25 Siemens Water Technologies Corp. Wastewater treatment system and method
US8323815B2 (en) * 2006-06-16 2012-12-04 Porous Power Technology, LLC Optimized microporous structure of electrochemical cells
WO2008006173A1 (fr) * 2006-07-14 2008-01-17 Siemens Water Technologies Corp. Traitement de membranes au monopersulfate amélioré
AU2007291946B2 (en) * 2006-08-31 2012-04-12 Evoqua Water Technologies Llc Low pressure backwash
US8293098B2 (en) * 2006-10-24 2012-10-23 Siemens Industry, Inc. Infiltration/inflow control for membrane bioreactor
AU2008215180A1 (en) * 2007-02-16 2008-08-21 Siemens Industry, Inc. Membrane filtration process and design
EP2129629A1 (fr) 2007-04-02 2009-12-09 Siemens Water Technologies Corp. Commande d'infiltration/afflux améliorée pour bioréacteur à membranes
US9764288B2 (en) 2007-04-04 2017-09-19 Evoqua Water Technologies Llc Membrane module protection
JP2010523302A (ja) * 2007-04-04 2010-07-15 シーメンス ウォーター テクノロジース コーポレイション 膜モジュール保護物
CA2686937A1 (fr) * 2007-05-29 2008-12-04 Siemens Water Technologies Corp. Nettoyage de membrane utilisant une pompe a emulsion d'air
ES2384694T3 (es) 2007-05-29 2012-07-11 Siemens Industry, Inc. Limpieza de membranas con bomba impulsada por aire
EP2158026A4 (fr) * 2007-06-28 2011-06-29 Siemens Industry Inc Procédé de nettoyage pour des systèmes de filtration simples
WO2009103082A2 (fr) * 2008-02-17 2009-08-20 Porous Power Technologies, Llc Configuration multicouche pour applications de type batterie utilisant un film en pvdf hautement poreux
US20090227163A1 (en) * 2008-03-05 2009-09-10 Bernard Perry Protective Apparel with Porous Material Layer
US20090226683A1 (en) * 2008-03-05 2009-09-10 Bernard Perry Porous Material Uses in Furniture
US20090223155A1 (en) * 2008-03-05 2009-09-10 Bernard Perry Building Construction Applications for Porous Material
US20090222995A1 (en) * 2008-03-05 2009-09-10 Bernard Perry Bedding Applications for Porous Material
CN102112213B (zh) * 2008-07-24 2016-08-03 伊沃夸水处理技术有限责任公司 用于膜过滤模块的框架系统
US20110132826A1 (en) * 2008-08-14 2011-06-09 Siemens Water Technologies Corp. Block Configuration for Large Scale Membrane Distillation
AU2009282912B2 (en) * 2008-08-20 2014-11-27 Evoqua Water Technologies Llc Improved membrane system backwash energy efficiency
KR101908907B1 (ko) * 2008-10-28 2018-10-17 알케마 인코포레이티드 물 투과 폴리머 멤브레인
US20100178567A1 (en) * 2008-12-24 2010-07-15 Porous Power Technologies, Llc Mat Forming Spacers in Microporous Membrane Matrix
CN102804297A (zh) 2009-05-20 2012-11-28 多孔渗透电力技术公司 用于微孔膜的处理和胶粘剂
WO2010141560A1 (fr) * 2009-06-02 2010-12-09 Siemens Water Technologies Corp. Nettoyage des membranes par bouchons de gaz pulsés et aération globale
AU2010257526A1 (en) 2009-06-11 2012-01-12 Siemens Industry, Inc Methods for cleaning a porous polymeric membrane and a kit for cleaning a porous polymeric membrane
WO2011079062A1 (fr) * 2009-12-21 2011-06-30 Siemens Industry, Inc. Membranes polymères poreuses chargées et leur préparation
WO2011136888A1 (fr) 2010-04-30 2011-11-03 Siemens Industry, Inc Dispositif de distribution d'un écoulement de fluide
AU2011305377B2 (en) 2010-09-24 2014-11-20 Evoqua Water Technologies Llc Fluid control manifold for membrane filtration system
SG192081A1 (en) * 2011-01-25 2013-08-30 Univ Nanyang Tech A forward osmosis membrane and method of forming a forward osmosis membrane
US8337701B2 (en) 2011-03-14 2012-12-25 Pall Corporation Intravenous filter
US8440085B2 (en) 2011-06-06 2013-05-14 Pall Corporation Plasma separation
WO2013049109A1 (fr) 2011-09-30 2013-04-04 Siemens Industry, Inc. Vanne d'isolation
AU2013200833B2 (en) 2011-09-30 2015-09-17 Evoqua Water Technologies Llc Improved manifold arrangement
US20130264277A1 (en) 2012-04-04 2013-10-10 Pall Corporation Antimicrobial filter
EP2866922B1 (fr) 2012-06-28 2018-03-07 Evoqua Water Technologies LLC Procédé d'empotage
CN104684632A (zh) 2012-09-14 2015-06-03 伊沃夸水处理技术有限责任公司 用于膜的聚合物共混物
WO2014052071A1 (fr) 2012-09-26 2014-04-03 Evoqua Water Technologies Llc Dispositif de sécurisation de membrane
AU2013231145B2 (en) 2012-09-26 2017-08-17 Evoqua Water Technologies Llc Membrane potting methods
AU2013101765A4 (en) 2012-09-27 2016-10-13 Evoqua Water Technologies Llc Gas Scouring Apparatus for Immersed Membranes
US10427102B2 (en) 2013-10-02 2019-10-01 Evoqua Water Technologies Llc Method and device for repairing a membrane filtration module
WO2017011068A1 (fr) 2015-07-14 2017-01-19 Evoqua Water Technologies Llc Dispositif d'aération pour système de filtration

Family Cites Families (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE329117C (de) * 1916-08-21 1920-11-15 Richard Zsigmondy Dr Membranfilter und Verfahren zu deren Herstellung
FR629415A (fr) * 1926-04-29 1927-11-09 Pathe Cinema Perfectionnements aux procédés de fabrication de fils, filaments, bandes ou films polis et transparents en matières plastiques
US2037292A (en) * 1932-04-20 1936-04-14 Deutsche Celluloid Fabrik Manufacture of films
US2245429A (en) * 1937-05-18 1941-06-10 Eastman Kodak Co Manufacture of photographic film base
US2242372A (en) * 1938-07-26 1941-05-20 Celanese Corp Method of making porous articles
US2282009A (en) * 1939-12-09 1942-05-05 Eastman Kodak Co Manufacture of vinyl resin film and sheeting
US2301368A (en) * 1939-12-09 1942-11-10 Eastman Kodak Co Manufacture of vinyl resin film and sheeting
US2383047A (en) * 1940-05-22 1945-08-21 Celanese Corp Process and apparatus for the production of plastic sheet material
GB565343A (en) * 1942-12-14 1944-11-07 John Guilfoyle Williams Improvements relating to the production of cellular materials from cellulose derivatives
US2824816A (en) * 1954-05-13 1958-02-25 Rohm & Haas Method for treating leather
US2783894A (en) * 1955-03-24 1957-03-05 Millipore Filter Corp Microporous nylon film
US2884387A (en) * 1956-10-02 1959-04-28 Polytechnic Inst Brooklyn Porous membrane materials and process for producing the same
US3000757A (en) * 1957-01-28 1961-09-19 Du Pont Process for coating substrates with a vapor permeable polymeric coating
US3100721A (en) * 1961-02-21 1963-08-13 Du Pont Process for producing microporous films and coatings
US3067482A (en) * 1958-07-03 1962-12-11 Du Pont Sheet material and process of making same
US2997448A (en) * 1958-09-24 1961-08-22 Du Pont Molded fluorocarbon polymer product and method of preparing same
NL260734A (fr) * 1960-02-05
US3216882A (en) * 1960-12-05 1965-11-09 Nalco Chemical Co Porous plastic film
US3190765A (en) * 1961-06-26 1965-06-22 Du Pont Vapor permeable sheet material and method of making same
US3129159A (en) * 1961-09-29 1964-04-14 Membranfiltergesellschaft G M Process for manufacturing membranes
BE626816A (fr) * 1962-01-05
GB1042305A (en) * 1963-03-14 1966-09-14 Pennsalt Chemicals Corp Vinylidene fluoride yarns and process for producing them
US3450650A (en) * 1963-06-13 1969-06-17 Yuasa Battery Co Ltd Method of making porous bodies
GB1054206A (fr) * 1963-12-06
US3348963A (en) * 1964-11-14 1967-10-24 Kurashiki Rayon Co Method of producing gas-permeable elastic polyurethane films
US3406096A (en) * 1965-11-26 1968-10-15 Pactide Corp Distillation under hydrostatic pressure with vapor permeable membrane
US3429957A (en) * 1965-07-06 1969-02-25 Gulf General Atomic Inc Process for continuously casting a semi-permeable membrane
US3439074A (en) * 1965-10-01 1969-04-15 Little Inc A Method for preparing desalination membranes
US3427179A (en) * 1965-10-23 1969-02-11 Polymer Corp Method of making a porous polyamide fabric
US3484273A (en) * 1966-01-14 1969-12-16 Kanebo Ltd Method for making porous sheet material
US3412184A (en) * 1966-02-17 1968-11-19 Arthur D Little Res Inst Process for the preparation of cellulosic ester reverse osmosis membranes
US3432584A (en) * 1966-02-17 1969-03-11 Aerojet General Co Process for the manufacture of a reverse osmosis membrane having a nonheating annealing step
GB1187040A (en) * 1966-03-07 1970-04-08 Porvair Ltd Improvements relating to Water Vapour Permeable Flexible Sheet Materials.
US3432585A (en) * 1966-04-18 1969-03-11 Aerojet General Co Method and apparatus for continuous fabrication of desalination membrane
US3567809A (en) * 1966-10-07 1971-03-02 Fuji Photo Film Co Ltd Method of varying the pore diameters of fine pores in cellulose acetate film
JPS5235721B1 (fr) * 1966-11-12 1977-09-10
US3507683A (en) * 1967-06-22 1970-04-21 Du Pont Method for applying heat-sealable polyamic acid,polyamide-imide and aromatic polyamide compositions to a synthetic polymer fibrid paper substrate
US3567810A (en) * 1968-04-01 1971-03-02 Amicon Corp Process for making high-flow anisotropic membranes
US3551244A (en) * 1968-04-03 1970-12-29 North Star Research & Dev Inst Method of producing an ultrathin polymer film laminate
DE1817542A1 (de) * 1968-12-31 1970-07-09 Kalle Ag Verfahren zum Herstellen einer semipermeablen Membran
US3620895A (en) * 1969-01-03 1971-11-16 Polaroid Corp Corrugated micropermeable membrane
US3642668A (en) * 1969-01-03 1972-02-15 Polaroid Corp Microporous vinylidene fluoride polymer and process of making same
US3744642A (en) * 1970-12-30 1973-07-10 Westinghouse Electric Corp Interface condensation desalination membranes
US3767737A (en) * 1971-09-07 1973-10-23 Gen Electric Method for production casting of ultrathin polymer membranes
DE2217375A1 (de) 1972-04-11 1973-11-08 Sueddeutsche Kalkstickstoff Polyvinylidenfluorid-loesungen und deren verwendung zur herstellung von ueberzuegen
US3810814A (en) * 1972-12-18 1974-05-14 Gen Electric Asymmetric polymer membranes of reduced elastic modulus
FR2232621B1 (fr) 1973-06-06 1976-04-23 Rhone Poulenc Textile
US3876738A (en) * 1973-07-18 1975-04-08 Amf Inc Process for producing microporous films and products
GB1507921A (en) * 1974-04-01 1978-04-19 Gen Electric Membranes

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2391837A1 (fr) * 1977-05-25 1978-12-22 Millipore Corp Procede de preparation d'une membrane poreuse en matiere polymere
EP0012557A1 (fr) * 1978-12-06 1980-06-25 Abcor, Inc. Membranes hydrophiles polymères, procédé pour leur préparation, leur application en tant que membranes ultrafiltrantes et membranes précurseurs susceptibles d'y être converties
EP0037836A1 (fr) * 1979-10-15 1981-10-21 Asahi Kasei Kogyo Kabushiki Kaisha Microfiltre a filament creux en resine de fluorure de polyvinylidene et son procede de production
EP0037836A4 (fr) * 1979-10-15 1982-01-26 Asahi Chemical Ind Microfiltre a filament creux en resine de fluorure de polyvinylidene et son procede de production.
EP0040670A2 (fr) * 1980-03-28 1981-12-02 Pennwalt Corporation Membrane poreuse en polymère de fluorure de vinylidène et procédé pour sa fabrication
EP0040670A3 (en) * 1980-03-28 1982-02-10 Pennwalt Corporation Porous vinylidene fluoride polymer membrane and process for its preparation
FR2528361A1 (fr) * 1982-03-16 1983-12-16 Parker Pen Co Instrument d'ecriture et son procede de fabrication
EP0100552A3 (en) * 1982-08-02 1985-05-02 Mitsubishi Rayon Co. Ltd. Hydrophilized membrane of porous hydrophobic material and process of producing same
EP0100552A2 (fr) * 1982-08-02 1984-02-15 Mitsubishi Rayon Co., Ltd. Membrane à base d'un matériau poreux hydrophobe rendue hydrophile et son procédé de fabrication
EP0175322A2 (fr) * 1984-09-17 1986-03-26 Mitsubishi Rayon Co., Ltd. Membrane rendue hydrophile à base d'un matériau poreux hydrophobe et son procédé de fabrication
EP0175322A3 (en) * 1984-09-17 1987-01-28 Mitsubishi Rayon Co. Ltd. Hydrophilized membrane of porous hydrophobic material and process for preparing the same
EP0264333A2 (fr) * 1986-10-17 1988-04-20 Cytogen Corporation Méthode de préparation de compositions de protéine, chélateur et ion métallique, convenant à l'injection
EP0264333A3 (fr) * 1986-10-17 1988-07-06 Cytogen Corporation Méthode de préparation de compositions de protéine, chélateur et ion métallique, convenant à l'injection
EP0330072A2 (fr) * 1988-02-26 1989-08-30 SEPAREM S.p.A. Membrane semi-perméable de séparation de fluides, son procédé de fabrication et son utilisation en microfiltration, distillation et pour des tissus spéciaux
EP0330072A3 (fr) * 1988-02-26 1990-03-14 SEPAREM S.p.A. Membrane semi-perméable de séparation de fluides, son procédé de fabrication et son utilisation en microfiltration, distillation et pour des tissus spéciaux
EP0335805A2 (fr) * 1988-04-01 1989-10-04 Terumo Kabushiki Kaisha Procédé de préparation de membrane poreuse et membrane poreuse préparée par un tel procédé
EP0335805A3 (fr) * 1988-04-01 1990-04-25 Terumo Kabushiki Kaisha Procédé de préparation de membrane poreuse et membrane poreuse préparée par un tel procédé
US4965291A (en) * 1988-04-01 1990-10-23 Terumo Kabushiki Kaisha Method of manufacturing porous membrane and porous membrane manufactured by the same method

Also Published As

Publication number Publication date
US4203848A (en) 1980-05-20
CA1118560A (fr) 1982-02-23
GB1594640A (en) 1981-08-05
FR2391836B1 (fr) 1983-10-07
JPS5416382A (en) 1979-02-06
DE2822266C2 (fr) 1987-05-07
DE2822266A1 (de) 1978-12-07

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