BR8702172A - Processo para preparacao de estrutura de difluoreto de polivinilideno,estrutura de difluoreto de polivinilideno e membrana microporosa de difluoreto de polivinilideno - Google Patents

Processo para preparacao de estrutura de difluoreto de polivinilideno,estrutura de difluoreto de polivinilideno e membrana microporosa de difluoreto de polivinilideno

Info

Publication number
BR8702172A
BR8702172A BR8702172A BR8702172A BR8702172A BR 8702172 A BR8702172 A BR 8702172A BR 8702172 A BR8702172 A BR 8702172A BR 8702172 A BR8702172 A BR 8702172A BR 8702172 A BR8702172 A BR 8702172A
Authority
BR
Brazil
Prior art keywords
polyvinylidide
difluoride
preparing
microporous membrane
microporous
Prior art date
Application number
BR8702172A
Other languages
English (en)
Inventor
Irving B Joffee
Peter John Degen
Frederick Anthony Baltusis
Original Assignee
Pall 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 Pall Corp filed Critical Pall Corp
Publication of BR8702172A publication Critical patent/BR8702172A/pt

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
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1607—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous
    • B01D39/1623—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres the material being fibrous of synthetic origin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0081—After-treatment of organic or inorganic membranes
    • B01D67/0093—Chemical modification
    • B01D67/00931—Chemical modification by introduction of specific groups after membrane formation, e.g. by grafting
    • 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
    • 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
    • C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
    • C08J7/12—Chemical modification
    • C08J7/16—Chemical modification with polymerisable compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/38—Graft polymerization
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/3154—Of fluorinated addition polymer from unsaturated monomers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Transplantation (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Graft Or Block Polymers (AREA)
BR8702172A 1986-05-01 1987-04-30 Processo para preparacao de estrutura de difluoreto de polivinilideno,estrutura de difluoreto de polivinilideno e membrana microporosa de difluoreto de polivinilideno BR8702172A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/857,945 US4774132A (en) 1986-05-01 1986-05-01 Polyvinylidene difluoride structure

Publications (1)

Publication Number Publication Date
BR8702172A true BR8702172A (pt) 1988-02-17

Family

ID=25327086

Family Applications (1)

Application Number Title Priority Date Filing Date
BR8702172A BR8702172A (pt) 1986-05-01 1987-04-30 Processo para preparacao de estrutura de difluoreto de polivinilideno,estrutura de difluoreto de polivinilideno e membrana microporosa de difluoreto de polivinilideno

Country Status (11)

Country Link
US (2) US4774132A (pt)
EP (1) EP0245000B1 (pt)
JP (1) JP2502309B2 (pt)
KR (1) KR920001307B1 (pt)
AU (1) AU596840B2 (pt)
BR (1) BR8702172A (pt)
CA (1) CA1302177C (pt)
DE (2) DE3774323D1 (pt)
FI (1) FI871934A (pt)
GB (1) GB2190039B (pt)
ZA (1) ZA872846B (pt)

Families Citing this family (86)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4906374A (en) * 1986-12-23 1990-03-06 Pall Corporation Filtration media with low protein adsorbability
US5019260A (en) * 1986-12-23 1991-05-28 Pall Corporation Filtration media with low protein adsorbability
JPH0621181B2 (ja) * 1987-01-12 1994-03-23 テルモ株式会社 親水性ポリフッ化ビニリデン多孔質膜の製造方法
IL88081A0 (en) * 1987-10-20 1989-06-30 Pall Corp Device and method for depletion of the leucocyte content of blood and blood components
US4959150A (en) * 1988-09-26 1990-09-25 Pall Corporation Fluid treatment system having low affinity for proteinaceous materials
US5022990A (en) * 1989-01-12 1991-06-11 Asahi Kasei Kogyo Kabushiki Kaisha Polyvinylidene fluoride porous membrane and a method for producing the same
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
US5536413A (en) * 1990-12-03 1996-07-16 Pall Corporation Method for treating a parenteral emulsion-containing medicament fluid
US5275738A (en) * 1992-06-10 1994-01-04 Pall Corporation Filter device for acids and process for filtering inorganic acids
US5230921A (en) * 1992-08-04 1993-07-27 Blacktoe Medical, Inc. Flexible piezo-electric membrane
DE4243995C2 (de) * 1992-12-23 1996-07-25 Gore W L & Ass Gmbh Permanente hydrophile Modifizierung für Fluorpolymere und Verfahren zur Erzeugung der Modifizierung
US5458719A (en) * 1993-03-24 1995-10-17 Pall Corporation Method for bonding a porous medium to a substrate
US5282971A (en) * 1993-05-11 1994-02-01 Pall Corporation Positively charged polyvinylidene fluoride membrane
CA2128296A1 (en) * 1993-12-22 1995-06-23 Peter John Degen Polyvinylidene fluoride membrane
CA2138056A1 (en) * 1994-05-20 1995-11-21 Peter John Degen Hydrophilic ptfe membrane
EP0888211B1 (en) * 1996-01-22 2004-11-03 Pall Corporation Highly porous polyvinylidene difluoride membranes
GB2309701B (en) * 1996-01-31 1999-06-16 Aea Technology Plc Organic electrolyte composition
EP0793287B1 (en) * 1996-01-31 1999-03-17 AEA Technology plc Polyvinylidene fluoride (PVdF) homopolymer as a solid polymer electrolyte in Lithium ion cells
WO1997037745A1 (en) * 1996-04-08 1997-10-16 Shell Oil Company Foam filter material and process to prepare foam filter material
US5798417A (en) * 1996-10-15 1998-08-25 E. I. Du Pont De Nemours And Company (Fluorovinyl ether)-grafted high-surface-area polyolefins and preparation thereof
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
US6146747A (en) * 1997-01-22 2000-11-14 Usf Filtration And Separations Group Inc. Highly porous polyvinylidene difluoride membranes
US5914039A (en) * 1997-07-01 1999-06-22 Zenon Environmental Inc. Filtration membrane with calcined α-alumina particles therein
AUPR143400A0 (en) * 2000-11-13 2000-12-07 Usf Filtration And Separations Group Inc. Modified membranes
JP2002233739A (ja) * 2001-02-09 2002-08-20 Asahi Kasei Corp 多孔性中空糸複合膜
AUPR421501A0 (en) 2001-04-04 2001-05-03 U.S. Filter Wastewater Group, Inc. Potting method
AUPR692401A0 (en) 2001-08-09 2001-08-30 U.S. Filter Wastewater Group, Inc. Method of cleaning membrane modules
TWI230878B (en) * 2001-08-24 2005-04-11 Via Tech Inc Method for remitting payment due
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
AU2002953111A0 (en) 2002-12-05 2002-12-19 U. S. Filter Wastewater Group, Inc. Mixing chamber
US7067058B2 (en) * 2003-04-01 2006-06-27 3M Innovative Properties Company Hydrophilic membrane and process for making the same
AU2004230360B2 (en) * 2003-04-16 2010-08-05 Kureha Corporation Porous film of vinylidene fluoride resin and method for producing same
AU2003903507A0 (en) 2003-07-08 2003-07-24 U. S. Filter Wastewater Group, Inc. Membrane post-treatment
NZ545206A (en) 2003-08-29 2009-03-31 Siemens Water Tech Corp Backwash
US7517581B2 (en) * 2003-09-26 2009-04-14 Parker-Hannifin Corporation Semipermeable hydrophilic membrane
US8808540B2 (en) 2003-11-14 2014-08-19 Evoqua Water Technologies Llc Module cleaning method
WO2005092799A1 (en) 2004-03-26 2005-10-06 U.S. Filter Wastewater Group, Inc. Process and apparatus for purifying impure water using microfiltration or ultrafiltration in combination with reverse osmosis
WO2005107929A2 (en) 2004-04-22 2005-11-17 Siemens Water Technologies Corp. Filtration apparatus comprising a membrane bioreactor and a treatment vessel for digesting organic materials
WO2005112150A1 (ja) * 2004-05-14 2005-11-24 Matsushita Electric Industrial Co., Ltd. リチウムイオン二次電池とその製造法
JP2008504122A (ja) 2004-07-02 2008-02-14 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 気体輸送膜
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
AU2005259840B2 (en) * 2004-07-05 2010-12-16 Evoqua Water Technologies Llc Hydrophilic membranes
JP4958779B2 (ja) 2004-08-20 2012-06-20 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 正方形のｍｂｒマニホールド・システム
CN101043933B (zh) 2004-09-07 2012-09-05 西门子工业公司 反洗废液的减少
CA2579857A1 (en) 2004-09-14 2006-03-23 Siemens Water Technologies Corp. Membrane filtration module and cleaning process
CA2579894A1 (en) 2004-09-15 2006-03-23 Siemens Water Technologies Corp. Continuously variable aeration
ATE511915T1 (de) 2004-12-03 2011-06-15 Siemens Industry Inc Membrannachbehandlung
CA2591408C (en) 2004-12-24 2015-07-21 Siemens Water Technologies Corp. Cleaning in membrane filtration systems
WO2006066350A1 (en) 2004-12-24 2006-06-29 Siemens Water Technologies Corp. Simple gas scouring method and apparatus
JP2008539054A (ja) 2005-04-29 2008-11-13 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 膜フィルターのための化学洗浄
SG164499A1 (en) 2005-08-22 2010-09-29 Siemens Water Tech Corp An assembly for water filtration using a tube manifold to minimise backwash
US20070138090A1 (en) 2005-10-05 2007-06-21 Jordan Edward J Method and apparatus for treating wastewater
US8293098B2 (en) 2006-10-24 2012-10-23 Siemens Industry, Inc. Infiltration/inflow control for membrane bioreactor
JP5228474B2 (ja) * 2007-02-22 2013-07-03 東レ株式会社 細胞浮遊液濾過用多孔質膜
US8318028B2 (en) 2007-04-02 2012-11-27 Siemens Industry, Inc. Infiltration/inflow control for membrane bioreactor
US9764288B2 (en) 2007-04-04 2017-09-19 Evoqua Water Technologies Llc Membrane module protection
KR20170092708A (ko) 2007-05-29 2017-08-11 에보쿠아 워터 테크놀로지스 엘엘씨 수처리 시스템
US20090042395A1 (en) * 2007-07-13 2009-02-12 Chien-Ling Chan Spacer process for CMOS fabrication with bipolar transistor leakage prevention
EP2060315A3 (en) 2007-11-15 2009-08-12 DSMIP Assets B.V. High performance membrane
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
AU2009282912B2 (en) 2008-08-20 2014-11-27 Evoqua Water Technologies Llc Improved membrane system backwash energy efficiency
US20100056652A1 (en) * 2008-08-28 2010-03-04 General Electric Company Processes for forming hydrophilic membranes and porous membranes thereof
AU2009309069B2 (en) * 2008-10-28 2014-01-09 Arkema Inc. Water flux polymer membranes
AU2010101488B4 (en) 2009-06-11 2013-05-02 Evoqua Water Technologies Llc Methods for cleaning a porous polymeric membrane and a kit for cleaning a porous polymeric membrane
US9914097B2 (en) 2010-04-30 2018-03-13 Evoqua Water Technologies Llc Fluid flow distribution device
CN103118766B (zh) 2010-09-24 2016-04-13 伊沃夸水处理技术有限责任公司 膜过滤系统的流体控制歧管
US8337701B2 (en) 2011-03-14 2012-12-25 Pall Corporation Intravenous filter
US8440085B2 (en) 2011-06-06 2013-05-14 Pall Corporation Plasma separation
CN109836735A (zh) 2011-06-23 2019-06-04 索尔维特殊聚合物意大利有限公司 用于制造多孔膜的方法
CA2850522C (en) 2011-09-30 2021-03-16 Evoqua Water Technologies Llc Shut-off valve for isolation of hollow fiber membrane filtration module
SG11201401089PA (en) 2011-09-30 2014-04-28 Evoqua Water Technologies Llc Improved manifold arrangement
US20130264277A1 (en) 2012-04-04 2013-10-10 Pall Corporation Antimicrobial filter
DE102012008471B4 (de) 2012-04-27 2018-05-24 Sartorius Stedim Biotech Gmbh Filterelement mit verbesserter Prüfbarkeit nach trockenem Bedampfen, Verfahren zu dessen Herstellung und dessen Verwendung
KR102108593B1 (ko) 2012-06-28 2020-05-29 에보쿠아 워터 테크놀로지스 엘엘씨 포팅 방법
EP2895257A1 (en) 2012-09-14 2015-07-22 Evoqua Water Technologies LLC A polymer blend for membranes
DE112013004713T5 (de) 2012-09-26 2015-07-23 Evoqua Water Technologies Llc Membransicherungsvorrichtung
US9962865B2 (en) 2012-09-26 2018-05-08 Evoqua Water Technologies Llc Membrane potting methods
EP2900356A1 (en) 2012-09-27 2015-08-05 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
EP3322511B1 (en) 2015-07-14 2022-09-07 Rohm & Haas Electronic Materials Singapore Pte. Ltd Aeration device for filtration system
JP6835848B2 (ja) * 2016-08-03 2021-02-24 東京応化工業株式会社 液体の精製方法、及び多孔質膜の製造方法
CN113924346B (zh) * 2019-06-06 2022-12-27 W.L.戈尔及同仁股份有限公司 润湿低表面能基材的方法以及用于该方法的系统
US11319434B2 (en) 2019-12-31 2022-05-03 Industrial Technology Research Institute Block copolymer, preparation method thereof, and thin film structure comprising the same
CN113644378B (zh) * 2021-08-10 2023-05-09 深圳市鼎泰祥新能源科技有限公司 一种功能涂层隔膜及其制备方法和应用

Family Cites Families (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2606177A (en) * 1946-10-09 1952-08-05 Celanese Corp Dehydrohalogenation of polyvinylchloride
US2788306A (en) * 1953-03-24 1957-04-09 Pittsburgh Plate Glass Co Surface treatment of halogenated fluoroethylenes and laminates thereof
US2972586A (en) * 1954-04-21 1961-02-21 Nl Organisatie Vour Toegepast Process for the preparation of permselective membranes from vinyl chloride polymers
US3247133A (en) * 1956-06-18 1966-04-19 American Mach & Foundry Method of forming graft copolymer ion exchange membranes
US3227510A (en) * 1958-03-04 1966-01-04 Tee Pak Inc Dyeing substrates ionically binding in localized areas catalysts for the predyeing olefin polymerization thereon
US3041316A (en) * 1959-10-09 1962-06-26 Warren R Griffin Room temperature vulcanization of fluorinated hydrocarbon elastomers
NL271330A (pt) * 1960-11-15 1900-01-01
NL278034A (pt) * 1961-05-06
US3257334A (en) * 1963-01-21 1966-06-21 American Mach & Foundry Electrodialysis membrane from perhalogenated fluorocarbons
FR1371843A (fr) * 1963-06-25 1964-09-11 Centre Nat Rech Scient Perfectionnements apportés aux membranes semi-perméables
US3551246A (en) * 1967-07-10 1970-12-29 Sun Chemical Corp Radiation curable compositions
US3621085A (en) * 1968-03-28 1971-11-16 Toyo Boseki Production of light-polarizing film
US3759807A (en) * 1969-01-28 1973-09-18 Union Carbide Corp Photopolymerization process using combination of organic carbonyls and amines
US3632387A (en) * 1969-01-30 1972-01-04 American Cyanamid Co Porous teflon having grafted polymer layers on the walls of the pores and on other surfaces
US3676192A (en) * 1970-04-06 1972-07-11 Ppg Industries Inc Crosslinked polyvinyl chloride or polyvinylidene fluoride film
US3684747A (en) * 1970-04-22 1972-08-15 Du Pont Method for increasing the liquid absorptive capacity of linear fluorocarbon sulfonic acid polymer
US3750735A (en) * 1970-06-16 1973-08-07 Monsanto Co Removal of water from liquid mixtures containing formaldehyde using a porous polymeric membrane
JPS4838229B1 (pt) * 1970-08-20 1973-11-16
US4164463A (en) * 1975-05-20 1979-08-14 E. I. Du Pont De Nemours And Company Hydrophilic fluoropolymers
US4189369A (en) * 1975-05-20 1980-02-19 E. I. Du Pont De Nemours And Company Diaphragm of hydrophilic fluoropolymers
DE2559260C3 (de) * 1975-12-31 1982-04-01 Dynamit Nobel Ag, 5210 Troisdorf Verfahren zur Modifizierung von Polyvinylidenfluorid
FR2348227A1 (fr) * 1976-04-14 1977-11-10 Rhone Poulenc Ind Perfectionnement aux procedes de preparation de polymeres acryliques hydrosolubles par photopolymerisation
JPS5858365B2 (ja) * 1976-07-02 1983-12-24 東ソー株式会社 陽イオン交換膜の製法
JPS538692A (en) * 1976-07-14 1978-01-26 Japan Atom Energy Res Inst Preparation of graft copolymer for ion-exchange membrane
GB1581641A (en) * 1976-09-14 1980-12-17 Secr Defence Methods of heat treatment of graft copolymer films
JPS53110680A (en) * 1977-03-08 1978-09-27 Sumitomo Electric Ind Ltd Affording hydrophillic nature to molded product
GB2014184B (en) * 1978-01-10 1982-05-19 Asahi Chemical Ind Method of separating oil from oil-containing liquid
US4262041A (en) * 1978-02-02 1981-04-14 Kanegafuchi Kagaku Kogyo Kabushiki Kaisha Process for preparing a composite amphoteric ion exchange membrane
US4340482A (en) * 1978-02-21 1982-07-20 Millipore Corporation Process for grafting amino acid molecules onto preformed polymer surfaces and products prepared thereby
JPS55106239A (en) * 1979-02-05 1980-08-14 Japan Atom Energy Res Inst Preparation of hydrophilic membrane based on polyethylene membrane
JPS5822046B2 (ja) * 1979-02-05 1983-05-06 日本原子力研究所 グラフト重合体膜の製造方法
US4316772A (en) * 1979-02-14 1982-02-23 Cheng Dah Y Composite membrane for a membrane distillation system
JPS5644098A (en) * 1979-09-18 1981-04-23 Ebara Infilco Co Ltd Treating method of hydrazine content waste water
US4419242A (en) * 1980-02-04 1983-12-06 International Power Technology, Inc. Composite membrane for a membrane distillation system
US4278777A (en) * 1980-03-27 1981-07-14 Abcor, Inc. Grafted polymers and method of preparing and using same
US4412922A (en) * 1980-07-02 1983-11-01 Abcor, Inc. Positive-charged ultrafiltration membrane for the separation of cathodic/electrodeposition-paint compositions
US4414280A (en) * 1980-08-08 1983-11-08 E. I. Du Pont De Nemours And Company Membranes and composites from fluoropolymer solutions
US4311573A (en) * 1980-10-08 1982-01-19 American Hospital Supply Corporation Process for graft copolymerization of a pre-formed substrate
US4377481A (en) * 1980-11-14 1983-03-22 Abcor, Inc. Blended, polymeric, matrix membrane and process of making and using same
JPS5785826A (en) * 1980-11-17 1982-05-28 Japan Atom Energy Res Inst Cation exchange membrane
US4470859A (en) * 1981-06-26 1984-09-11 Diamond Shamrock Chemicals Company Coated porous substrate formation by solution coating
ZA824471B (en) * 1981-06-26 1983-04-27 Ici Australia Ltd Polymers
US4423193A (en) * 1981-07-27 1983-12-27 The General Tire & Rubber Company Dehydrochlorination of vinyl chloride resins followed by graft copolymerization with copolymerizable monomers
DE3129745C2 (de) * 1981-07-28 1985-01-17 Hoechst Ag, 6230 Frankfurt Offenporig-mikroporös ausgebildeter Formkörper mit inhärenter latenter Strukturumwandelbarkeit
US4468441A (en) * 1981-10-01 1984-08-28 Rai Research Corp. Separator membranes for redox-type electrochemical cells
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
JPS5924732A (ja) * 1982-08-02 1984-02-08 Mitsubishi Rayon Co Ltd 親水化多孔質膜およびその製造方法
WO1985001222A1 (en) * 1983-09-12 1985-03-28 Memtec Limited Treatment of porous membranes
US4618533A (en) * 1984-11-30 1986-10-21 Millipore Corporation Porous membrane having hydrophilic surface and process

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AU596840B2 (en) 1990-05-17
KR870011176A (ko) 1987-12-21
JPS62267340A (ja) 1987-11-20
ZA872846B (en) 1988-01-27
DE245000T1 (de) 1989-10-26
GB2190039B (en) 1989-11-29
AU7188087A (en) 1987-11-05
EP0245000A2 (en) 1987-11-11
US4855163A (en) 1989-08-08
JP2502309B2 (ja) 1996-05-29
EP0245000A3 (en) 1988-08-10
CA1302177C (en) 1992-06-02
FI871934A (fi) 1987-11-02
GB8709930D0 (en) 1987-06-03
FI871934A0 (fi) 1987-04-30
US4774132A (en) 1988-09-27
KR920001307B1 (ko) 1992-02-10
EP0245000B1 (en) 1991-11-06
DE3774323D1 (de) 1991-12-12
GB2190039A (en) 1987-11-11

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