FR2575480B1 - Membrane poreuse en resine fluoree et son procede de preparation - Google Patents

Membrane poreuse en resine fluoree et son procede de preparation

Info

Publication number
FR2575480B1
FR2575480B1 FR858518516A FR8518516A FR2575480B1 FR 2575480 B1 FR2575480 B1 FR 2575480B1 FR 858518516 A FR858518516 A FR 858518516A FR 8518516 A FR8518516 A FR 8518516A FR 2575480 B1 FR2575480 B1 FR 2575480B1
Authority
FR
France
Prior art keywords
preparation
relates
porous membrane
resin membrane
fluorinated resin
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
Application number
FR858518516A
Other languages
English (en)
French (fr)
Other versions
FR2575480A1 (fr
Inventor
Yoshihiko Mutoh
Morikazu Miura
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.)
Asahi Kasei Corp
Asahi Chemical Industry Co Ltd
Original Assignee
Asahi Chemical Industry Co Ltd
Asahi Kasei Kogyo KK
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
Priority claimed from JP27392084A external-priority patent/JPS61152739A/ja
Priority claimed from JP7347185A external-priority patent/JPS61233026A/ja
Application filed by Asahi Chemical Industry Co Ltd, Asahi Kasei Kogyo KK filed Critical Asahi Chemical Industry Co Ltd
Publication of FR2575480A1 publication Critical patent/FR2575480A1/fr
Application granted granted Critical
Publication of FR2575480B1 publication Critical patent/FR2575480B1/fr
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/26—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by elimination of a solid phase from a macromolecular composition or article, e.g. leaching out
    • 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
    • B01D67/0023—Organic membrane manufacture by inducing porosity into non porous precursor membranes
    • B01D67/0025—Organic membrane manufacture by inducing porosity into non porous precursor membranes by mechanical treatment, e.g. pore-stretching
    • B01D67/0027—Organic membrane manufacture by inducing porosity into non porous precursor membranes by mechanical treatment, e.g. pore-stretching by stretching
    • 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
    • B01D67/0023—Organic membrane manufacture by inducing porosity into non porous precursor membranes
    • B01D67/003—Organic membrane manufacture by inducing porosity into non porous precursor membranes by selective elimination of components, e.g. by leaching
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2201/00—Foams characterised by the foaming process
    • C08J2201/04—Foams characterised by the foaming process characterised by the elimination of a liquid or solid component, e.g. precipitation, leaching out, evaporation
    • C08J2201/044—Elimination of an inorganic solid phase
    • C08J2201/0442—Elimination of an inorganic solid phase the inorganic phase being a metal, its oxide or hydroxide
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2323/00—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers
    • C08J2323/02—Characterised by the use of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Derivatives of such polymers not modified by chemical after treatment
    • C08J2323/04—Homopolymers or copolymers of ethene
    • C08J2323/08—Copolymers of ethene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2327/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
FR858518516A 1984-12-27 1985-12-13 Membrane poreuse en resine fluoree et son procede de preparation Expired FR2575480B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP27392084A JPS61152739A (ja) 1984-12-27 1984-12-27 エチレン−テトラフルオロエチレン共重合体多孔膜の製造方法
JP7347185A JPS61233026A (ja) 1985-04-09 1985-04-09 多孔膜の製造方法

Publications (2)

Publication Number Publication Date
FR2575480A1 FR2575480A1 (fr) 1986-07-04
FR2575480B1 true FR2575480B1 (fr) 1989-12-22

Family

ID=26414619

Family Applications (1)

Application Number Title Priority Date Filing Date
FR858518516A Expired FR2575480B1 (fr) 1984-12-27 1985-12-13 Membrane poreuse en resine fluoree et son procede de preparation

Country Status (4)

Country Link
US (2) US4623670A (OSRAM)
DE (1) DE3544206A1 (OSRAM)
FR (1) FR2575480B1 (OSRAM)
GB (1) GB2168981B (OSRAM)

Families Citing this family (114)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2219589A (en) * 1988-06-13 1989-12-13 Scimat Ltd Microporous halopolymer films
US5198162A (en) * 1984-12-19 1993-03-30 Scimat Limited Microporous films
GB2168981B (en) * 1984-12-27 1988-07-06 Asahi Chemical Ind Porous fluorine resin membrane and process for preparation thereof
US4980060A (en) * 1987-07-13 1990-12-25 Asahi Kasei Kogyo Kabushiki Kaisha Hollow fiber membranes with fusion-bonded end portions
US4906377A (en) * 1988-05-04 1990-03-06 Millipore Corporation Fluorocarbon membranes and process for making fluorocarbon membranes
US5032274A (en) * 1988-05-04 1991-07-16 Millipore Corporation Process for producing fluorocarbon membranes and membrane product
US4902456A (en) * 1988-05-04 1990-02-20 Millipore Corporation Fluorocarbon membranes and process for making fluorocarbon membranes
US4997603A (en) * 1988-08-05 1991-03-05 Hoechst Celanese Corp. Process for formation of halogenated polymeric microporous membranes having improved strength properties
US5043113A (en) * 1988-08-05 1991-08-27 Hoechst Celanese Corp. Process for formation of halogenated polymeric microporous membranes having improved strength properties
US4873037A (en) * 1988-10-05 1989-10-10 The Dow Chemical Company Method for preparing an asymmetric semi-permeable membrane
US5022990A (en) * 1989-01-12 1991-06-11 Asahi Kasei Kogyo Kabushiki Kaisha Polyvinylidene fluoride porous membrane and a method for producing the same
GB2232982A (en) * 1989-06-13 1991-01-02 Scimat Ltd Microporous films
DE3928934C2 (de) * 1989-08-31 1999-04-29 Sartorius Gmbh Textilverstärktes mikroporöses Membranfilter, Verfahren zu seiner Herstellung und seine Verwendung
US5156656A (en) * 1991-09-13 1992-10-20 The Dow Chemical Company Semi-permeable membranes derived from reactive oligomers
FR2682613B1 (fr) * 1991-10-22 1994-06-03 Cogia Procede de deshydratation au moins partielle d'une composition aqueuse et dispositifs pour mettre en óoeuvre le procede.
US5358780A (en) * 1992-04-01 1994-10-25 Hoechst Celanese Corp. Breathable water-resistant fabrics
DE4424466A1 (de) * 1994-07-12 1996-01-18 Hoechst Ag Copolymeres vom Typ Tetrafluorethylen-Ethylen mit einer Kern-Hülle-Teilchenstruktur
US5614319A (en) * 1995-05-04 1997-03-25 Commscope, Inc. Insulating composition, insulated plenum cable and methods for making same
EP0750006B1 (en) * 1995-06-23 2002-03-27 Technische Universiteit Delft Method of making a foamable film
JP4804599B2 (ja) 1996-12-20 2011-11-02 シーメンス・ウォーター・テクノロジーズ・コーポレイション 洗浄方法
FR2759087B1 (fr) * 1997-02-06 1999-07-30 Electricite De France Produit composite poreux de haute surface specifique, procede de preparation et electrode pour ensemble electrochimique formee d'un film composite poreux
BR0110895A (pt) * 2000-05-16 2003-03-11 Watervision International Inc Dispositivos de filtração e métodos de uso
AUPR143400A0 (en) 2000-11-13 2000-12-07 Usf Filtration And Separations Group Inc. Modified membranes
ITMI20010421A1 (it) * 2001-03-01 2002-09-02 Ausimont Spa Membrane porose semipermeabili di fluoropolimeri semicristallini
US7128861B2 (en) * 2001-03-06 2006-10-31 Asahi Kasei Chemicals Corporation Method for producing hollow yarn film
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
AUPS046602A0 (en) * 2002-02-12 2002-03-07 U.S. Filter Wastewater Group, Inc. Halar membranes
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
ATE542593T1 (de) 2002-10-10 2012-02-15 Siemens Industry Inc Membranfilter und rückspülverfahren dafür
DE10257093B4 (de) * 2002-12-05 2005-02-24 Basf Ag Aerosolabscheider und Verfahren zur Reinigung von gasförmigem Schwefeltrioxid durch Abscheidung darin dispergierter Flüssigkeiten
AU2002953111A0 (en) 2002-12-05 2002-12-19 U. S. Filter Wastewater Group, Inc. Mixing chamber
US7081208B2 (en) * 2002-12-16 2006-07-25 International Business Machines Corporation Method to build a microfilter
US7201841B2 (en) 2003-02-05 2007-04-10 Water Visions International, Inc. Composite materials for fluid treatment
AU2003903507A0 (en) * 2003-07-08 2003-07-24 U. S. Filter Wastewater Group, Inc. Membrane post-treatment
CN103285737B (zh) 2003-08-29 2016-01-13 伊沃夸水处理技术有限责任公司 反洗
EP1702671A4 (en) * 2003-10-03 2008-08-06 Kureha Corp POROUS HOLLOW WIRE COMPOSED OF RESIN BASED ON VINYLIDENE FLUORIDE
US20050142280A1 (en) * 2003-10-20 2005-06-30 Kim Kwon I. System and method for synthesizing a polymer membrane
AU2004289373B2 (en) 2003-11-14 2010-07-29 Evoqua Water Technologies Llc Improved module cleaning method
US7383946B2 (en) 2004-03-26 2008-06-10 Hughes Kenneth D Materials for storing and releasing reactive gases
US8758621B2 (en) 2004-03-26 2014-06-24 Evoqua Water Technologies Llc Process and apparatus for purifying impure water using microfiltration or ultrafiltration in combination with reverse osmosis
US8636919B1 (en) 2004-03-26 2014-01-28 Kenneth D. Hughes Reactive solutions
EP2380854A3 (en) 2004-04-22 2012-07-04 Siemens Industry, Inc. Filtration apparatus comprising a membrane bioreactor and a treatment vessel for digesting organic materials
CA2571498A1 (en) 2004-07-02 2006-01-12 U.S. Filter Wastewater Group, Inc. Gas transfer membrane
JP2008505197A (ja) 2004-07-05 2008-02-21 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 親水性膜
CN101052457B (zh) 2004-08-20 2012-07-04 西门子工业公司 正方形mbr歧管系统
AU2005282211B2 (en) 2004-09-07 2011-04-21 Evoqua Water Technologies Llc Reduction of backwash liquid waste
NZ553742A (en) 2004-09-14 2010-09-30 Siemens Water Tech Corp Methods and apparatus for removing solids from a membrane module
CN100548452C (zh) 2004-09-15 2009-10-14 西门子水技术公司 一种薄膜过滤系统以及控制薄膜过滤系统中积垢的方法
US7591950B2 (en) 2004-11-02 2009-09-22 Siemens Water Technologies Corp. Submerged cross-flow filtration
WO2006058384A1 (en) 2004-12-03 2006-06-08 Siemens Water Technologies Corp. Membrane post treatment
NZ555987A (en) 2004-12-24 2009-08-28 Siemens Water Tech Corp Simple gas scouring method and apparatus
JP4763718B2 (ja) 2004-12-24 2011-08-31 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 膜濾過システムの洗浄
ITMI20050474A1 (it) * 2005-03-22 2006-09-23 Solvay Solexis Spa Polveri o manufatti aventi una idrofilicita'superficiale
US7247419B2 (en) * 2005-04-11 2007-07-24 Az Electronic Materials Usa Corp. Nanocomposite photosensitive composition and use thereof
US7524606B2 (en) 2005-04-11 2009-04-28 Az Electronic Materials Usa Corp. Nanocomposite photoresist composition for imaging thick films
CA2605757A1 (en) 2005-04-29 2006-11-09 Siemens Water Technologies Corp. Chemical clean for membrane filter
KR20080031956A (ko) 2005-07-14 2008-04-11 지멘스 워터 테크놀로지스 코포레이션 막의 모노퍼술페이트 처리 방법
MY146286A (en) 2005-08-22 2012-07-31 Siemens Industry Inc An assembly for water filtration using a tube manifold to minimise backwash
US7563363B2 (en) 2005-10-05 2009-07-21 Siemens Water Technologies Corp. System for treating wastewater
US20070138090A1 (en) 2005-10-05 2007-06-21 Jordan Edward J Method and apparatus for treating wastewater
EP2260931B1 (en) 2005-10-13 2018-12-26 Asahi Kasei Kabushiki Kaisha Porous multilayered hollow-fiber membrane
US7455765B2 (en) 2006-01-25 2008-11-25 Siemens Water Technologies Corp. Wastewater treatment system and method
AU2007272318B2 (en) * 2006-07-14 2011-06-09 Evoqua Water Technologies Llc Improved monopersulfate treatment of membranes
US8293098B2 (en) 2006-10-24 2012-10-23 Siemens Industry, Inc. Infiltration/inflow control for membrane bioreactor
WO2008123972A1 (en) 2007-04-02 2008-10-16 Siemens Water Technologies Corp. Improved infiltration/inflow control for membrane bioreactor
US9764288B2 (en) 2007-04-04 2017-09-19 Evoqua Water Technologies Llc Membrane module protection
EP2152390B1 (en) 2007-05-29 2012-05-23 Siemens Industry, Inc. Membrane cleaning with pulsed airlift pump
US9650479B2 (en) 2007-10-04 2017-05-16 W. L. Gore & Associates, Inc. Dense articles formed from tetrafluoroethylene core shell copolymers and methods of making the same
US9040646B2 (en) 2007-10-04 2015-05-26 W. L. Gore & Associates, Inc. Expandable TFE copolymers, methods of making, and porous, expanded articles thereof
JP2013500144A (ja) 2008-07-24 2013-01-07 シーメンス インダストリー インコーポレイテッド 濾過システムにおける濾過膜モジュールアレイに対して構造的支持を施すための方法および濾過システム
NZ591259A (en) 2008-08-20 2013-02-22 Siemens Industry Inc A hollow membrane filter backwash system using gas pressurised at at least two pressures feed from the down stream side to push water through the filter to clean it
JPWO2010044425A1 (ja) * 2008-10-16 2012-03-15 旭硝子株式会社 エチレン／テトラフルオロエチレン共重合体多孔体の製造方法およびエチレン／テトラフルオロエチレン共重合体多孔体
JP5603349B2 (ja) 2008-12-19 2014-10-08 スリーエム イノベイティブ プロパティズ カンパニー エチレン−クロロトリフルオロエチレンコポリマーからの微小多孔性材料とその製造方法
US20100210160A1 (en) 2009-02-18 2010-08-19 3M Innovative Properties Company Hydrophilic porous substrates
CN104941459B (zh) 2009-03-26 2017-09-22 Bl 科技公司 非编织的增强中空纤维膜
WO2010142673A1 (en) 2009-06-11 2010-12-16 Siemens Water Technologies Corp. Methods for cleaning a porous polymeric membrane and a kit for cleaning a porous polymeric membrane
US9061250B2 (en) 2009-06-26 2015-06-23 Bl Technologies, Inc. Non-braided, textile-reinforced hollow fiber membrane
CN102762285B (zh) 2009-08-03 2016-06-08 索尔维特殊聚合物意大利有限公司 用于制备乙烯/三氟氯乙烯聚合物薄膜的方法
WO2011079062A1 (en) * 2009-12-21 2011-06-30 Siemens Industry, Inc. Charged porous polymeric membranes and their preparation
AU2011245709B2 (en) 2010-04-30 2015-06-11 Evoqua Water Technologies Llc Fluid flow distribution device
AU2011302393B2 (en) 2010-09-15 2016-09-08 Bl Technologies, Inc. Method to make a yarn-reinforced hollow fibre membranes around a soluble core
WO2012040412A1 (en) 2010-09-24 2012-03-29 Siemens Industry, Inc. Fluid control manifold for membrane filtration system
US8529814B2 (en) 2010-12-15 2013-09-10 General Electric Company Supported hollow fiber membrane
AU2012274402B2 (en) 2011-06-22 2014-08-14 Daikin Industries, Ltd. Porous polymer film and production method for porous polymer film
EP2723479B1 (en) 2011-06-23 2021-08-11 Solvay Specialty Polymers Italy S.p.A. Process for manufacturing porous membranes
CA2850309C (en) 2011-09-30 2020-01-07 Evoqua Water Technologies Llc Improved manifold arrangement
EP3473320A1 (en) 2011-09-30 2019-04-24 Evoqua Water Technologies LLC Isolation valve
US9321014B2 (en) 2011-12-16 2016-04-26 Bl Technologies, Inc. Hollow fiber membrane with compatible reinforcements
US9643129B2 (en) 2011-12-22 2017-05-09 Bl Technologies, Inc. Non-braided, textile-reinforced hollow fiber membrane
US9022229B2 (en) 2012-03-09 2015-05-05 General Electric Company Composite membrane with compatible support filaments
US8999454B2 (en) 2012-03-22 2015-04-07 General Electric Company Device and process for producing a reinforced hollow fibre membrane
KR102108593B1 (ko) 2012-06-28 2020-05-29 에보쿠아 워터 테크놀로지스 엘엘씨 포팅 방법
US9227362B2 (en) 2012-08-23 2016-01-05 General Electric Company Braid welding
EP2895257A1 (en) 2012-09-14 2015-07-22 Evoqua Water Technologies LLC A polymer blend for membranes
AU2013324056B2 (en) 2012-09-26 2017-11-16 Evoqua Water Technologies Llc Membrane securement device
US9962865B2 (en) 2012-09-26 2018-05-08 Evoqua Water Technologies Llc Membrane potting methods
AU2013323934A1 (en) 2012-09-27 2015-02-26 Evoqua Water Technologies Llc Gas scouring apparatus for immersed membranes
EP3010965B1 (en) 2013-06-18 2018-12-05 3M Innovative Properties Company Hydrophilic fluoroplastic substrates
EP3052221B1 (en) 2013-10-02 2022-12-14 Rohm & Haas Electronic Materials Singapore Pte. Ltd Device for repairing a membrane filtration module
WO2015157119A1 (en) 2014-04-11 2015-10-15 3M Innovative Properties Company Microporous articles with a three-dimensional porous network of acid-sintered interconnected silica nanoparticles and methods of making the same
US10807046B2 (en) 2014-06-30 2020-10-20 3M Innovative Properties Company Asymmetric articles with a porous substrate and a polymeric coating extending into the substrate and methods of making the same
US9932429B2 (en) 2014-07-29 2018-04-03 W. L. Gore & Associates, Inc. Method for producing porous articles from alternating poly(ethylene tetrafluoroethylene) and articles produced therefrom
US9644054B2 (en) 2014-12-19 2017-05-09 W. L. Gore & Associates, Inc. Dense articles formed from tetrafluoroethylene core shell copolymers and methods of making the same
WO2017007607A1 (en) 2015-07-08 2017-01-12 3M Innovative Properties Company Photochromic articles containing a polyoxometalate and methods of making and using same
US10322375B2 (en) 2015-07-14 2019-06-18 Evoqua Water Technologies Llc Aeration device for filtration system
EP3147024A1 (en) 2015-09-25 2017-03-29 Helmholtz-Zentrum Geesthacht Zentrum für Material- und Küstenforschung GmbH Hollow-fibre polymer membrane
WO2018102266A1 (en) 2016-12-02 2018-06-07 3M Innovative Properties Company Photochromic articles containing a porous material with a photochromic dye and fluid, methods of making and using
EP3398675A1 (en) 2017-05-02 2018-11-07 Helmholtz-Zentrum Geesthacht Zentrum für Material- und Küstenforschung GmbH Macroporous or mesoporous polymer films in hollow fiber or flat sheet geometry
CN109420434A (zh) * 2017-09-01 2019-03-05 浙江省化工研究院有限公司 一种制备乙烯-三氟氯乙烯共聚物中空纤维微孔膜的方法
CN111068405A (zh) * 2019-12-09 2020-04-28 常州凯丽特装饰材料有限公司 一种复合空气过滤材料的制备方法
US20220401863A1 (en) * 2020-02-14 2022-12-22 Topsoe A/S Process for the removal of particulate matter from an aqueous stream

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2915483A (en) 1953-12-30 1959-12-01 Minnesota Mining & Mfg Plasticized perfluorochloroethylene polymer and process for preparing porous articles therefrom
US3379658A (en) 1964-05-25 1968-04-23 Charles R. Kemper Porous film and method of making
US3536796A (en) * 1967-11-29 1970-10-27 Grace W R & Co Process for reducing shrinkage in preparing porous plastic sheet
DE1769595C3 (de) * 1968-06-12 1975-07-17 Robert Bosch Gmbh, 7000 Stuttgart Verfahren zur Herstellung von gasdurchlässigen, hydrophoben Folien aus fluorhaltigen Polymeren für elektrochemische Zellen, insbesondere Brennstoffzellen
US4181983A (en) 1977-08-29 1980-01-08 Kulkarni R K Assimilable hydrophilic prosthesis
US4629563B1 (en) * 1980-03-14 1997-06-03 Memtec North America Asymmetric membranes
JPS56159128A (en) * 1980-05-15 1981-12-08 Asahi Chem Ind Co Ltd Thermoplastic resin porous film and production thereof
JPS6017478B2 (ja) * 1982-04-09 1985-05-02 旭化成株式会社 植物油の処理法
JPS614504A (ja) * 1984-06-15 1986-01-10 Asahi Chem Ind Co Ltd ポリクロロトリフルオロエチレン多孔膜及びその製造方法
GB8432048D0 (en) * 1984-12-19 1985-01-30 Raychem Ltd Electrochemical cells
GB2168981B (en) * 1984-12-27 1988-07-06 Asahi Chemical Ind Porous fluorine resin membrane and process for preparation thereof

Also Published As

Publication number Publication date
FR2575480A1 (fr) 1986-07-04
US4623670A (en) 1986-11-18
GB2168981A (en) 1986-07-02
DE3544206C2 (OSRAM) 1988-10-20
GB8530028D0 (en) 1986-01-15
GB2168981B (en) 1988-07-06
US4702836A (en) 1987-10-27
DE3544206A1 (de) 1986-07-10

Similar Documents

Publication Publication Date Title
FR2575480B1 (fr) Membrane poreuse en resine fluoree et son procede de preparation
DE3584562D1 (de) Verfahren zur herstellung von hohlfasern und ihre verwendung in membrantrennverfahren.
DE68919324D1 (de) Verfahren zur Herstellung von isotropen mikroporösen Polysulfonmembranen.
BR8702172A (pt) Processo para preparacao de estrutura de difluoreto de polivinilideno,estrutura de difluoreto de polivinilideno e membrana microporosa de difluoreto de polivinilideno
DE3274951D1 (en) Composite semipermeable membrane, process for its production, and method of its use
DK0489746T3 (da) Semipermeabel membran med høj flux
DE3772941D1 (de) Herstellung mikroporoeser asymetrischer membrane durch zweifache bestrahlung.
IL62729A (en) Method of reverse osmosis using porous glass membrane
NO155350C (no) Keramisk filter med skumlignende struktur for filtrering av metallsmelter.
DE69534096D1 (de) Hochpermeable Umkehrosmose-Verbundmembran, Verfahren zu deren Herstellung und Verfahren zu deren Verwendung
DE3684227D1 (de) Herstellung semipermeabler membranen durch reaktion kationischer gruppen mit nukleophilen gruppen.
JPS6475542A (en) Hydrophilic porous membrane of polyvinylidene fluoride and production thereof
DE3886822D1 (de) Verfahren zur Herstellung von hochdurchlässigen zusammengesetzten beschichteten Hohlfasermembranen.
DE3485013D1 (de) Bipolare membrane.
US5476590A (en) Hydrophilic polyvinylidene fluoride membranes
DE69630270D1 (de) Verfahren zur Herstellung von durch poröses Glas gestützten Zeolithmembranen
DE3381918D1 (de) Biologisch-kuenstlicher pankreas unter verwendung von ultrafiltration.
ATE7397T1 (de) Verfahren zur herstellung von polycarbonatpoly[ther-blockcopolymeren und ihre verwendung.
JPS5631405A (en) Selective perameable membrane
IL52271A (en) Method of preparing reverse osmosis membranes of high urea rejection properties
BR9507310A (pt) Processo para a fabricação de uma célula eletroquimica
DE2321784C2 (de) Verfahren zur Herstellung von vernetzten Gelose- oder Agarose-Gelen sowie deren Verwendung
JPS5599934A (en) Preparation of porous vinylidene fluoride resin membrane
US3600147A (en) Method of making a glass semipermeable membrane
DK0502301T3 (da) Materiale og fremgangsmåde til fremstilling af materialer med høj porøsitet og høj styrke

Legal Events

Date Code Title Description
ST Notification of lapse