DE69007130D1 - Poröse Polyvinylidenfluorid-Membran und Verfahren zu ihrer Herstellung. - Google Patents

Poröse Polyvinylidenfluorid-Membran und Verfahren zu ihrer Herstellung.

Info

Publication number
DE69007130D1
DE69007130D1 DE90300384T DE69007130T DE69007130D1 DE 69007130 D1 DE69007130 D1 DE 69007130D1 DE 90300384 T DE90300384 T DE 90300384T DE 69007130 T DE69007130 T DE 69007130T DE 69007130 D1 DE69007130 D1 DE 69007130D1
Authority
DE
Germany
Prior art keywords
manufacture
polyvinylidene fluoride
fluoride membrane
porous polyvinylidene
porous
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 - Lifetime
Application number
DE90300384T
Other languages
English (en)
Other versions
DE69007130T2 (de
Inventor
Yoshinao Doi
Haruo Matsumura
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
Application filed by Asahi Chemical Industry Co Ltd, Asahi Kasei Kogyo KK filed Critical Asahi Chemical Industry Co Ltd
Application granted granted Critical
Publication of DE69007130D1 publication Critical patent/DE69007130D1/de
Publication of DE69007130T2 publication Critical patent/DE69007130T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B01D67/003—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
    • B01D71/34—Polyvinylidene fluoride
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/02—Hydrophilization
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/24—Mechanical properties, e.g. strength
    • 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
    • C08J2201/054—Precipitating the polymer by adding a non-solvent or a different solvent
    • C08J2201/0542—Precipitating the polymer by adding a non-solvent or a different solvent from an organic solvent-based polymer composition
    • C08J2201/0543—Precipitating the polymer by adding a non-solvent or a different solvent from an organic solvent-based polymer composition the non-solvent being organic
    • 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
    • C08J2201/054—Precipitating the polymer by adding a non-solvent or a different solvent
    • C08J2201/0545—Precipitating the polymer by adding a non-solvent or a different solvent from an aqueous solvent-based polymer composition
    • C08J2201/0546—Precipitating the polymer by adding a non-solvent or a different solvent from an aqueous solvent-based polymer composition the non-solvent being organic
    • 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
    • C08J2327/16—Homopolymers or copolymers of vinylidene fluoride

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)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
DE69007130T 1989-01-12 1990-01-12 Poröse Polyvinylidenfluorid-Membran und Verfahren zu ihrer Herstellung. Expired - Lifetime DE69007130T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP367589 1989-01-12

Publications (2)

Publication Number Publication Date
DE69007130D1 true DE69007130D1 (de) 1994-04-14
DE69007130T2 DE69007130T2 (de) 1994-10-13

Family

ID=11564000

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69007130T Expired - Lifetime DE69007130T2 (de) 1989-01-12 1990-01-12 Poröse Polyvinylidenfluorid-Membran und Verfahren zu ihrer Herstellung.

Country Status (4)

Country Link
US (1) US5022990A (de)
EP (1) EP0378441B1 (de)
DE (1) DE69007130T2 (de)
ES (1) ES2049919T3 (de)

Families Citing this family (71)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69130879T2 (de) * 1990-05-09 1999-07-29 Usf Filtration Ltd Polyvinylidenmembrane
US5489406A (en) * 1990-05-09 1996-02-06 Memtec Limited Method of making polyvinylidene fluoride membrane
US5183607A (en) * 1991-12-17 1993-02-02 Beall George H Polymer membranes for separation process
US5788862A (en) * 1992-05-13 1998-08-04 Pall Corporation Filtration medium
US5480554A (en) * 1992-05-13 1996-01-02 Pall Corporation Integrity-testable wet-dry-reversible ultrafiltration membranes and method for testing same
CA2100643A1 (en) * 1992-08-14 1994-02-15 Guido Sartori Fluorinated polyolefin membranes for aromatics/saturates separation
US5275766A (en) * 1992-10-30 1994-01-04 Corning Incorporate Method for making semi-permeable polymer membranes
US5438129A (en) * 1993-09-27 1995-08-01 Becton Dickinson And Company DNA purification by solid phase extraction using partially fluorinated aluminum hydroxide adsorbant
US5514461A (en) * 1993-10-05 1996-05-07 Kureha Chemical Industry Co., Ltd. Vinylidene fluoride porous membrane and method of preparing the same
CA2128296A1 (en) * 1993-12-22 1995-06-23 Peter John Degen Polyvinylidene fluoride membrane
JP4172819B2 (ja) * 1995-12-18 2008-10-29 旭化成ケミカルズ株式会社 中空糸状濾過膜
US6074718A (en) * 1996-02-06 2000-06-13 Koch Membrane Systems, Inc. Self supporting hollow fiber membrane and method of construction
US5728121A (en) * 1996-04-17 1998-03-17 Teleflex Medical, Inc. Surgical grasper devices
US6126671A (en) * 1996-10-07 2000-10-03 Tfx Medical, Incorporated Grasping devices and articles
CN1147352C (zh) * 1996-12-10 2004-04-28 旭化成株式会社 聚偏氟乙烯树脂多孔膜及其制备方法
WO1999067013A1 (fr) * 1996-12-10 1999-12-29 Asahi Kasei Kogyo Kabushiki Kaisha Film poreux d'une resine de fluorure de polyvinylidene et son procede de production
US20040135274A1 (en) * 1998-03-16 2004-07-15 Shigenobu Matsuda Microporous membrane
US6295986B1 (en) * 2000-01-12 2001-10-02 Aradigm Corporation Reactive ion etching method of fabricating nozzles for aerosolized delivery of therapeutic or diagnostic agents
EP1251102B1 (de) * 2000-01-18 2006-09-27 Asahi Kasei Kabushiki Kaisha Verfahren zur reinigung von wässrigen suspensionen durch membranfiltration
ES2177380B1 (es) * 2000-02-09 2004-08-16 Universidad De Granada Procedimiento para la eliminacion de contaminantes biologicos del agua.
US6582810B2 (en) 2000-12-22 2003-06-24 Kimberly-Clark Worldwide, Inc. One-step method of producing an elastic, breathable film structure
CA2407859C (en) * 2001-03-06 2006-04-11 Asahi Kasei Kabushiki Kaisha Method for producing hollow fiber membrane
US6596167B2 (en) 2001-03-26 2003-07-22 Koch Membrane Systems, Inc. Hydrophilic hollow fiber ultrafiltration membranes that include a hydrophobic polymer and a method of making these membranes
AU2002338039B2 (en) 2001-10-04 2007-08-16 Toray Industries, Inc. Hollow fiber film and method for production thereof
AU2003241797B2 (en) * 2002-06-14 2008-10-09 Toray Industries, Inc. Porous membrane and method of manufacturing the porous membrane
EP1550746A4 (de) * 2002-08-05 2010-08-04 Toray Industries Poröse faser
US7913611B2 (en) * 2002-09-03 2011-03-29 University Of Virginia Patent Foundation Blast and ballistic protection systems and method of making the same
ES2228241B1 (es) * 2003-02-20 2006-06-01 Tratasa 2000, S.L. Procedimiento para fabricar un filtro para agua y otros fluidos.
US7165682B1 (en) * 2003-07-16 2007-01-23 Accord Partner Limited Defect free composite membranes, method for producing said membranes and use of the same
US7172075B1 (en) * 2003-08-08 2007-02-06 Accord Partner Limited Defect free composite membranes, method for producing said membranes and use of the same
US7338692B2 (en) 2003-09-12 2008-03-04 3M Innovative Properties Company Microporous PVDF films
EP1702671A4 (de) * 2003-10-03 2008-08-06 Kureha Corp Poröses hohlgarn aus harz auf vinylidenfluoridbasis und herstellungsverfahren dafür
WO2005037917A1 (en) * 2003-10-20 2005-04-28 Zenon Environmental Inc. System and method for synthesizing a polymer membrane
US20050155926A1 (en) * 2003-10-20 2005-07-21 Kim Kwon I. System and method for synthesizing a polymer membrane
JP4931796B2 (ja) * 2005-02-15 2012-05-16 株式会社クレハ フッ化ビニリデン系樹脂中空糸多孔膜、それを用いる水の濾過方法およびその製造方法
AU2006300331C1 (en) * 2005-10-13 2011-01-27 Asahi Kasei Chemicals Corporation Porous multilayered hollow-fiber membrane and process for producing the same
JP5076320B2 (ja) * 2006-01-11 2012-11-21 東洋紡績株式会社 ポリフッ化ビニリデン系中空糸型微多孔膜の製造方法
KR101310815B1 (ko) * 2006-03-16 2013-09-27 에치투엘 주식회사 중공사막 및 그의 제조방법
CN101641148A (zh) * 2007-03-23 2010-02-03 株式会社吴羽 1,1-二氟乙烯系树脂中空丝多孔膜及其制造方法
CN101293185A (zh) * 2008-01-30 2008-10-29 清华大学 一种制备聚偏氟乙烯多孔膜的方法
ATE528066T1 (de) 2008-12-12 2011-10-15 Membrana Gmbh Hydrophobe ozonstabile pvdf-membran mit hoher mechanischer stabilität
JP2010188426A (ja) * 2009-01-26 2010-09-02 Emprie Technology Development LLC 清拭シート
JP2010167388A (ja) * 2009-01-26 2010-08-05 Emprie Technology Development LLC ナノポーラス表面を有する製品の製造方法
JP4526597B1 (ja) * 2009-01-26 2010-08-18 エンパイア テクノロジー ディベロップメント エルエルシー 細胞培養足場の製造方法
WO2010108285A1 (en) 2009-03-26 2010-09-30 Asteia Technology Inc. Non-braided reinforced hollow fibre membrane
CN104607053B (zh) 2009-06-26 2017-04-12 Bl 科技公司 非编织、织物增强的中空纤维膜
CN102085457B (zh) * 2009-12-07 2013-01-02 广州美能材料科技有限公司 一种制备复合多层多孔中空纤维膜的方法及其装置和产品
JP5612953B2 (ja) 2010-04-12 2014-10-22 日東電工株式会社 粒子、粒子分散液、粒子分散樹脂組成物および樹脂成形体
JP5879257B2 (ja) 2010-04-12 2016-03-08 日東電工株式会社 イオン伝導性有機無機複合粒子、粒子含有樹脂組成物およびイオン伝導性成形体
US9211506B2 (en) 2010-09-02 2015-12-15 The University Of Hong Kong Doping of inorganic minerals to hydrophobic membrane surface
CN102397759B (zh) * 2010-09-08 2014-05-14 绵阳美能材料科技有限公司 一种聚醚砜中空纤维滤膜及其制备方法
US9221020B2 (en) 2010-09-15 2015-12-29 Bl Technologies, Inc. Method to make yarn-reinforced hollow fiber membranes around a soluble core
US8529814B2 (en) 2010-12-15 2013-09-10 General Electric Company Supported hollow fiber membrane
CN103781537B (zh) 2011-08-22 2016-04-06 陶氏环球技术有限责任公司 由包含自组装嵌段共聚物的聚合物掺合物形成的复合膜
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
US9227362B2 (en) 2012-08-23 2016-01-05 General Electric Company Braid welding
CA2883789A1 (en) * 2012-09-11 2014-03-20 Universite Laval Microporous and hydrophobic polymeric hollow fiber membranes and methods for preparation thereof
KR101483740B1 (ko) * 2013-06-04 2015-01-16 주식회사 에코니티 비대칭성 폴리비닐리덴플루오라이드 중공사막의 제조방법 및 이로부터 제조된 중공사막
CN105980039A (zh) 2014-01-10 2016-09-28 旭化成株式会社 多孔性中空纤维膜及其制造方法、以及净水方法
US10702834B2 (en) 2014-07-07 2020-07-07 Toray Industries, Inc. Separation membrane and method for producing same
KR101784141B1 (ko) 2014-12-26 2017-10-10 도레이 카부시키가이샤 다공질 중공사막
WO2017038224A1 (ja) * 2015-08-31 2017-03-09 東レ株式会社 多孔質中空糸膜
CN105126648B (zh) * 2015-09-21 2018-03-09 江苏凯米膜科技股份有限公司 一种基于聚乙烯醇凝胶制备网络孔聚偏氟乙烯膜的方法
KR102524285B1 (ko) 2016-02-25 2023-04-24 도레이 카부시키가이샤 다공질 중공사막
CN108778473A (zh) * 2016-03-09 2018-11-09 旭化成株式会社 多孔性中空纤维膜及其制造方法、以及过滤方法
CN105797591B (zh) * 2016-03-28 2019-01-18 上海应用技术学院 一种超疏水性聚偏氟乙烯微孔膜的制备方法
KR102285048B1 (ko) 2017-03-24 2021-08-04 아사히 가세이 가부시키가이샤 막 증류용 다공질 막 및 막 증류용 모듈의 운전 방법
CN114632428B (zh) * 2020-12-15 2023-01-20 中化(宁波)润沃膜科技有限公司 聚偏氟乙烯基膜、聚偏氟乙烯复合纳滤膜及其制备方法

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3642668A (en) * 1969-01-03 1972-02-15 Polaroid Corp Microporous vinylidene fluoride polymer and process of making same
DE2165073A1 (de) * 1971-12-28 1973-07-12 Sartorius Membranfilter Gmbh Mehrschichten-filtermembrane, verfahren zu deren herstellung und deren verwendung
JPS4922472A (de) * 1972-06-22 1974-02-27
US3862030A (en) * 1972-12-13 1975-01-21 Amerace Esna Corp Microporous sub-micron filter media
US4203848A (en) * 1977-05-25 1980-05-20 Millipore Corporation Processes of making a porous membrane material from polyvinylidene fluoride, and products
US4203847A (en) * 1977-05-25 1980-05-20 Millipore Corporation Making porous membranes and the membrane products
CH625966A5 (de) * 1977-07-15 1981-10-30 Kilcher Chemie Ag
DE2816085B2 (de) * 1978-04-13 1981-04-23 Sartorius GmbH, 3400 Göttingen Asymmetrische Ultrafiltrationsmembrane auf der Basis von Zellulosehydrat
US4237083A (en) * 1979-02-13 1980-12-02 Evans Products Company Process of manufacturing a microporous sheet material
JPS5637836A (en) * 1979-08-31 1981-04-11 Pioneer Electronic Corp Replica making method for video disk
JPS5656202A (en) * 1979-10-15 1981-05-18 Asahi Chem Ind Co Ltd Hollow porous membrane yarn made of polyvinylidene fluoride type resin
DE3129745C2 (de) * 1981-07-28 1985-01-17 Hoechst Ag, 6230 Frankfurt Offenporig-mikroporös ausgebildeter Formkörper mit inhärenter latenter Strukturumwandelbarkeit
JPS5891732A (ja) * 1981-11-27 1983-05-31 Teijin Ltd ポリフツ化ビニリデン系樹脂多孔膜及びその製法
JPS5893734A (ja) * 1981-11-30 1983-06-03 Asahi Chem Ind Co Ltd 親水性ポリフツ化ビニリデン樹脂多孔膜の製造方法
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
GB8431549D0 (en) * 1984-12-13 1985-01-23 Weatherford Uk Ltd Rotating tubular member
GB2168981B (en) * 1984-12-27 1988-07-06 Asahi Chemical Ind Porous fluorine resin membrane and process for preparation thereof
NZ218971A (en) * 1986-01-21 1989-05-29 Mitsui Toatsu Chemicals Porous polyolefin films and their preparation
US4774132A (en) * 1986-05-01 1988-09-27 Pall Corporation Polyvinylidene difluoride structure
FR2600265B1 (fr) * 1986-06-20 1991-09-06 Rhone Poulenc Rech Membranes semi-permeables sechables et hydrophiles a base de polyfluorure de vinylidene
US4833172A (en) * 1987-04-24 1989-05-23 Ppg Industries, Inc. Stretched microporous material
US4806291A (en) * 1988-02-22 1989-02-21 Ionics, Incorporated Process for preparing microporous polyvinylidene fluoride membranes
IT1216467B (it) * 1988-02-26 1990-03-08 Separem Spa Membrana semipermeabile per la separazione di fluidi, procedimento per la sua preparazione e uso ditale membrana per microfiltrazione, distillazione, e tessuti speciali.
US4842741A (en) * 1988-03-25 1989-06-27 Du Pont Canada Inc. Heterogeneous membranes from highly filled thermoplastic orientable polymers

Also Published As

Publication number Publication date
EP0378441A2 (de) 1990-07-18
ES2049919T3 (es) 1994-05-01
DE69007130T2 (de) 1994-10-13
US5022990A (en) 1991-06-11
EP0378441A3 (en) 1990-11-14
EP0378441B1 (de) 1994-03-09

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