ZA868031B - Semi-permeable membranes prepared via reaction of cationic groups with nucleophilic groups - Google Patents

Semi-permeable membranes prepared via reaction of cationic groups with nucleophilic groups

Info

Publication number
ZA868031B
ZA868031B ZA868031A ZA868031A ZA868031B ZA 868031 B ZA868031 B ZA 868031B ZA 868031 A ZA868031 A ZA 868031A ZA 868031 A ZA868031 A ZA 868031A ZA 868031 B ZA868031 B ZA 868031B
Authority
ZA
South Africa
Prior art keywords
groups
semi
prepared via
permeable membranes
via reaction
Prior art date
Application number
ZA868031A
Other languages
English (en)
Inventor
Thomas E Davis
Jee I Kau
Donald L Schmidt
Ritchie A Wessling
Sharon S Whipple
Dale M Pickelman
Richard F Fibiger
Original Assignee
Dow Chemical Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dow Chemical Co filed Critical Dow Chemical Co
Priority to ZA868031A priority Critical patent/ZA868031B/xx
Publication of ZA868031B publication Critical patent/ZA868031B/xx

Links

Classifications

    • 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
    • B01D67/0088—Physical treatment with compounds, e.g. swelling, coating or impregnation
    • 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
    • B01D67/00933—Chemical modification by addition of a layer chemically bonded to the membrane
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/08—Hollow fibre membranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/12—Composite membranes; Ultra-thin membranes
    • B01D69/125—In situ manufacturing by polymerisation, polycondensation, cross-linking or chemical reaction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/14—Dynamic membranes
    • 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
    • B01D71/40—Polymers of unsaturated acids or derivatives thereof, e.g. salts, amides, imides, nitriles, anhydrides, esters
    • B01D71/401—Polymers based on the polymerisation of acrylic acid, e.g. polyacrylate
    • 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
    • B01D71/44—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of groups B01D71/26-B01D71/42
    • 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
    • B01D71/46—Epoxy resins
    • 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
    • B01D71/52—Polyethers
    • B01D71/521—Aliphatic polyethers
    • B01D71/5211—Polyethylene glycol or polyethyleneoxide
    • 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
    • B01D71/66—Polymers having sulfur in the main chain, with or without nitrogen, oxygen or carbon only
    • B01D71/68—Polysulfones; Polyethersulfones
    • 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
    • B01D71/72—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of the groups B01D71/46 - B01D71/70 and B01D71/701 - B01D71/702
    • 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
    • B01D71/76—Macromolecular material not specifically provided for in a single one of groups B01D71/08 - B01D71/74
    • B01D71/80—Block polymers
    • 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
    • B01D71/76—Macromolecular material not specifically provided for in a single one of groups B01D71/08 - B01D71/74
    • B01D71/82—Macromolecular material not specifically provided for in a single one of groups B01D71/08 - B01D71/74 characterised by the presence of specified groups, e.g. introduced by chemical after-treatment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/30—Cross-linking
    • 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
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249955—Void-containing component partially impregnated with adjacent component
    • Y10T428/249958—Void-containing component is synthetic resin or natural rubbers
    • 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.]
    • Y10T428/249962—Void-containing component has a continuous matrix of fibers only [e.g., porous paper, etc.]
    • Y10T428/249964—Fibers of defined composition
    • Y10T428/249965—Cellulosic
    • 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.]
    • Y10T428/249971—Preformed hollow element-containing
    • Y10T428/249972—Resin or rubber element
    • 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.]
    • Y10T428/249978—Voids specified as micro

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
ZA868031A 1985-10-22 1986-10-22 Semi-permeable membranes prepared via reaction of cationic groups with nucleophilic groups ZA868031B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ZA868031A ZA868031B (en) 1985-10-22 1986-10-22 Semi-permeable membranes prepared via reaction of cationic groups with nucleophilic groups

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US06/790,287 US4704324A (en) 1985-04-03 1985-10-22 Semi-permeable membranes prepared via reaction of cationic groups with nucleophilic groups
ZA868031A ZA868031B (en) 1985-10-22 1986-10-22 Semi-permeable membranes prepared via reaction of cationic groups with nucleophilic groups

Publications (1)

Publication Number Publication Date
ZA868031B true ZA868031B (en) 1988-06-29

Family

ID=25150231

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA868031A ZA868031B (en) 1985-10-22 1986-10-22 Semi-permeable membranes prepared via reaction of cationic groups with nucleophilic groups

Country Status (9)

Country Link
US (2) US4704324A (cg-RX-API-DMAC7.html)
EP (1) EP0220660B1 (cg-RX-API-DMAC7.html)
JP (1) JPS62502320A (cg-RX-API-DMAC7.html)
AU (1) AU573465B2 (cg-RX-API-DMAC7.html)
CA (1) CA1298739C (cg-RX-API-DMAC7.html)
DE (1) DE3684227D1 (cg-RX-API-DMAC7.html)
IL (1) IL80395A0 (cg-RX-API-DMAC7.html)
WO (1) WO1987002682A1 (cg-RX-API-DMAC7.html)
ZA (1) ZA868031B (cg-RX-API-DMAC7.html)

Families Citing this family (171)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH656626A5 (fr) * 1982-02-05 1986-07-15 Pall Corp Membrane en polyamide, presentant des proprietes de surface controlees, son utilisation et son procede de preparation.
US4704324A (en) * 1985-04-03 1987-11-03 The Dow Chemical Company Semi-permeable membranes prepared via reaction of cationic groups with nucleophilic groups
US4929556A (en) * 1986-02-06 1990-05-29 The Dow Chemical Company Enzyme immobilization with polysulfonium salts
US4927540A (en) * 1986-09-04 1990-05-22 The Dow Chemical Company Ionic complex for enhancing performance of water treatment membranes
US4888116A (en) * 1987-01-15 1989-12-19 The Dow Chemical Company Method of improving membrane properties via reaction of diazonium compounds or precursors
US4812238A (en) * 1987-01-15 1989-03-14 The Dow Chemical Company Membranes prepared via reaction of diazonium compounds or precursors
US4871461A (en) * 1987-01-22 1989-10-03 The General Director Of The Agency Of Industrial Science And Technology Polymer composite membrane
DE3704307A1 (de) * 1987-02-12 1988-08-25 Dow Chemical Gmbh Komplexbildendes harz des geltyps und seine verwendung zur verringerung der konzentration mehrwertiger erdalkali- und/oder schwermetallionen in loesungen
US4894165A (en) * 1987-07-20 1990-01-16 The Dow Chemical Company Rejection enhancing coatings for reverse osmosis membranes
US4828700A (en) * 1987-07-20 1989-05-09 The Dow Chemical Company Rejection enhancing coatings for reverse osmosis membranes
US4909943A (en) * 1987-07-20 1990-03-20 The Dow Chemical Company Rejection enhancing coatings for reverse osmosis membranes
US5013448A (en) * 1989-04-11 1991-05-07 Allied-Signal Inc. Process for the preparation of chlorine-resistant polyester semipermeable membranes
US5024765A (en) * 1989-10-02 1991-06-18 Aligena Ag Composite membranes and processes using them
US5039421A (en) * 1989-10-02 1991-08-13 Aligena Ag Solvent stable membranes
US5580650A (en) * 1989-12-29 1996-12-03 The Dow Chemical Company Process of preparing a composite membrane
US5310581A (en) * 1989-12-29 1994-05-10 The Dow Chemical Company Photocurable compositions
US5238747A (en) * 1989-12-29 1993-08-24 The Dow Chemical Company Photocurable compositions
US5464538A (en) * 1989-12-29 1995-11-07 The Dow Chemical Company Reverse osmosis membrane
US5021160A (en) * 1990-01-09 1991-06-04 Gelman Sciences, Inc. Strongly acidic microporous membranes for cation exchange
NL9001273A (nl) * 1990-06-06 1992-01-02 Tno Semi-permeabel composietmembraan.
SE9004129D0 (sv) * 1990-12-21 1990-12-21 Pharmacia Lkb Biotech Anion exchanger
US5252212A (en) * 1991-08-21 1993-10-12 Fg&G Idaho Inc. Spray forming polymer membranes, coatings and films
US5151182A (en) * 1991-08-30 1992-09-29 Membrane Products Kiryat Weizmann Ltd. Polyphenylene oxide-derived membranes for separation in organic solvents
US5265734A (en) * 1991-08-30 1993-11-30 Membrane Products Kiryat Weitzman Ltd. Silicon-derived solvent stable membranes
US5205934A (en) * 1991-08-30 1993-04-27 Membrane Products Kiryat Weitzman Ltd. Silicone-derived solvent stable membranes
US5178765A (en) * 1991-09-18 1993-01-12 Gelman Sciences Inc. Hydrophilic membranes prepared from polyethersulfone/poly-2-oxazoline/polyvinylpyrrolidone blend
JPH08509820A (ja) * 1991-12-30 1996-10-15 ザ・ダウ・ケミカル・カンパニー 光硬化可能な組成物
AU5957094A (en) * 1993-01-15 1994-08-15 Allied-Signal Inc. Process for producing ion exchange membranes, and the ion exchange membranes produced thereby
DE4409906C1 (de) * 1994-03-23 1995-05-11 Metallgesellschaft Ag Komposit-Membran und ein Verfahren zu ihrer Herstellung
US5652013A (en) * 1994-10-17 1997-07-29 Thermo Power Corporation Chemical enhancement of surface deposition
US6126901A (en) * 1994-10-17 2000-10-03 Thermo Power Corporation Detecting low levels of radionuclides in fluids
US5598874A (en) * 1995-08-11 1997-02-04 Mg Generon, Inc. Loom processing of hollow fiber membranes
US5686024A (en) * 1995-12-18 1997-11-11 Rhone-Poulenc Surfactants & Specialties, L.P. Aqueous dispersion of a surface active polymer having enhanced performance properties
US5674934A (en) * 1996-02-23 1997-10-07 The Dow Chemical Company Reversible and irreversible water-based coatings
AU3653097A (en) * 1996-07-08 1998-02-02 Memtec America Corporation Cationically charge-modified membranes
US5932361A (en) * 1996-10-21 1999-08-03 Belyakov; Vladimir Nikolaevich Ceramic based membranes
GB9624130D0 (en) * 1996-11-20 1997-01-08 Biocompatibles Ltd Biocompatible compositions
KR20000069628A (ko) * 1996-12-20 2000-11-25 브라이언 디어 세척 방법
US5817159A (en) * 1996-12-31 1998-10-06 Cahill; Scott A. Filter with interpenetrating polymer network that biodegrades
WO1998047937A1 (en) * 1997-04-23 1998-10-29 Joseph Thomas Ippoliti Amphoteric polymer with ph-adjustable ionic characteristics
US5997952A (en) 1997-05-23 1999-12-07 The Dow Chemical Company Fast-setting latex coating and formulations
US5910532A (en) * 1997-05-29 1999-06-08 The Dow Chemical Company Multisolvent-based film-forming compositions
US5959016A (en) * 1997-07-31 1999-09-28 The Dow Chemical Company Composition for preparing a solvent-resistant coating
US6025404A (en) * 1998-02-20 2000-02-15 The Dow Chemical Company Rapid set latexes and foamed articles prepared therefrom
US6191211B1 (en) 1998-09-11 2001-02-20 The Dow Chemical Company Quick-set film-forming compositions
US6361921B1 (en) 1998-11-12 2002-03-26 Andrew Michael Thompson Priming composition for bonding photoresists on substrates
CA2300519C (en) * 1999-03-19 2008-02-12 Bend Research, Inc. Solvent-resistant microporous polybenzimidazole membranes
US6183640B1 (en) 1999-04-09 2001-02-06 Usf Filtration And Separations Group, Inc. Highly asymmetric anionic membranes
EP1198257A1 (en) 1999-07-21 2002-04-24 The Procter & Gamble Company Microorganism filter and method for removing microorganism from water
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
US6688477B2 (en) * 2001-05-03 2004-02-10 Air Products And Chemicals, Inc. Composite membranes
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
KR100777951B1 (ko) 2001-08-23 2007-11-28 더 프록터 앤드 갬블 캄파니 정수 필터 재료, 대응하는 정수 필터 및 그의 사용 방법
US7615152B2 (en) 2001-08-23 2009-11-10 Pur Water Purification Products, Inc. Water filter device
US7614508B2 (en) 2001-08-23 2009-11-10 Pur Water Purification Products Inc. Water filter materials, water filters and kits containing silver coated particles and processes for using the same
US7614507B2 (en) 2001-08-23 2009-11-10 Pur Water Purification Products Inc. Water filter materials, water filters and kits containing particles coated with cationic polymer and processes for using the same
US20050279696A1 (en) 2001-08-23 2005-12-22 Bahm Jeannine R Water filter materials and water filters containing a mixture of microporous and mesoporous carbon particles
US7247238B2 (en) * 2002-02-12 2007-07-24 Siemens Water Technologies Corp. Poly(ethylene chlorotrifluoroethylene) membranes
US7276624B2 (en) * 2002-05-14 2007-10-02 E. I. Du Pont De Nemours And Company Fluorosulfates of hexafluoroisobutylene and its higher homologs
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
US7235164B2 (en) 2002-10-18 2007-06-26 Eksigent Technologies, Llc Electrokinetic pump having capacitive electrodes
KR101002466B1 (ko) * 2002-10-10 2010-12-17 지멘스 워터 테크놀로지스 코포레이션 역세척 방법
US7087692B2 (en) * 2002-11-27 2006-08-08 Galaxy Surfactants Ltd Salt and heat sensitive, substantive UV-absorbing polymers
AU2002953111A0 (en) * 2002-12-05 2002-12-19 U. S. Filter Wastewater Group, Inc. Mixing chamber
US20040112741A1 (en) * 2002-12-17 2004-06-17 Murdoch Karen E. Method and system for producing dry gas
AU2003903507A0 (en) 2003-07-08 2003-07-24 U. S. Filter Wastewater Group, Inc. Membrane post-treatment
WO2005021140A1 (en) 2003-08-29 2005-03-10 U.S. Filter Wastewater Group, Inc. Backwash
WO2005046849A1 (en) 2003-11-14 2005-05-26 U.S. Filter Wastewater Group, Inc. Improved 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
CA2564007C (en) 2004-04-22 2011-05-31 Siemens Water Technologies Corp. Filtration apparatus comprising a membrane bioreactor and a treatment vessel for digesting organic materials
US7604746B2 (en) * 2004-04-27 2009-10-20 Mcmaster University Pervaporation composite membranes
WO2006002469A1 (en) * 2004-07-02 2006-01-12 U.S. Filter Wastewater Group, Inc Gas transfer membrane
ATE523240T1 (de) 2004-07-05 2011-09-15 Siemens Water Tech Corp Hydrophile membranen
US7862719B2 (en) * 2004-08-20 2011-01-04 Siemens Water Technologies Corp. Square membrane manifold system
CN101043933B (zh) * 2004-09-07 2012-09-05 西门子工业公司 反洗废液的减少
AU2005284677B2 (en) 2004-09-14 2010-12-23 Evoqua Water Technologies Llc Methods and apparatus for removing solids from a membrane module
NZ553771A (en) 2004-09-15 2010-11-26 Siemens Water Tech Corp Continuously variable aeration of membrane filtration system and flow control device when used in such application
JP4868108B2 (ja) 2004-10-18 2012-02-01 栗田工業株式会社 透過膜の阻止率向上剤、阻止率向上方法、透過膜及び水処理方法
US7591950B2 (en) * 2004-11-02 2009-09-22 Siemens Water Technologies Corp. Submerged cross-flow filtration
CN101065177B (zh) * 2004-11-02 2011-07-27 西门子水技术公司 浸没式横向流过滤
CA2588675A1 (en) * 2004-12-03 2006-06-08 Siemens Water Technologies Corp. Membrane post treatment
CN101623599B (zh) 2004-12-24 2013-01-16 西门子工业公司 膜过滤系统中的清洗
JP2008525167A (ja) 2004-12-24 2008-07-17 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 簡易ガス洗浄方法および当該技術分野の装置
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
NZ563980A (en) * 2005-06-20 2011-07-29 Siemens Water Tech Corp 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
KR100821486B1 (ko) * 2005-08-08 2008-04-10 주식회사 코오롱 나노 복합중공사막 및 그의 제조방법
NZ565795A (en) 2005-08-22 2011-03-31 Siemens Water Tech Corp An assembly for water filtration using a tube manifold to minimise backwash
WO2007044345A2 (en) * 2005-10-05 2007-04-19 Siemens Water Technologies Corp. Method and apparatus for treating wastewater
WO2007044415A2 (en) * 2005-10-05 2007-04-19 Siemens Water Technologies Corp. Method and apparatus for treating wastewater
US8152477B2 (en) * 2005-11-23 2012-04-10 Eksigent Technologies, Llc Electrokinetic pump designs and drug delivery systems
US20070187244A1 (en) * 2005-12-13 2007-08-16 Bio-Rad Laboratories, Inc. Composite Membrane To Capture Analyte Transfers From Gels
US7455765B2 (en) 2006-01-25 2008-11-25 Siemens Water Technologies Corp. Wastewater treatment system and method
EP2033324B1 (en) 2006-05-24 2016-04-13 Ben Gurion University of the Negev Research and Development Authority Membranes and methods for their preparation
MY145939A (en) * 2006-07-14 2012-05-31 Siemens Industry Inc Improved monopersulfate treatment of membranes
US20080245736A1 (en) 2006-08-11 2008-10-09 Millipore Corporation Crosslinked cellulosic nanofiltration membranes
US8293098B2 (en) 2006-10-24 2012-10-23 Siemens Industry, Inc. Infiltration/inflow control for membrane bioreactor
US7910237B2 (en) * 2006-11-13 2011-03-22 Canon Kabushiki Kaisha Polymer electrolyte membrane and method for producing polymer electrolyte membrane
WO2008097786A2 (en) * 2007-02-05 2008-08-14 Dow Global Technologies Inc. Modified polyamide membrane
CA2682707C (en) 2007-04-02 2014-07-15 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
JP4833353B2 (ja) 2007-05-29 2011-12-07 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 パルス化エアリフトポンプを備えた膜モジュール
US8251672B2 (en) 2007-12-11 2012-08-28 Eksigent Technologies, Llc Electrokinetic pump with fixed stroke volume
US8216473B2 (en) 2008-06-13 2012-07-10 Solution Dynamics, Llc Apparatus and methods for solution processing using reverse osmosis
KR101614520B1 (ko) 2008-07-24 2016-04-21 에보쿠아 워터 테크놀로지스 엘엘씨 막 여과 모듈용 프레임 시스템
US8652331B2 (en) 2008-08-20 2014-02-18 Siemens Water Technologies Llc Membrane system backwash energy efficiency
ES2877072T3 (es) 2009-01-13 2021-11-16 Ams Tech Int 2012 Ltd Membranas estables en disolventes y en ácidos y métodos de fabricación de las mismas
CN102405094A (zh) 2009-02-19 2012-04-04 内盖夫研究与发展部本-古里安大学 耐化学性膜、涂层和膜层及它们的制备方法
TWI398353B (zh) * 2009-03-02 2013-06-11 Ind Tech Res Inst 奈米纖維材料與脫鹽過濾材料
US8366811B2 (en) * 2009-03-03 2013-02-05 Oridion Medical (1987) Ltd. Drying substances, preparation and use thereof
US8747752B2 (en) 2009-03-03 2014-06-10 Oridion Medical (1987) Ltd. Drying substances, preparation and use thereof
US9067035B2 (en) * 2009-03-03 2015-06-30 Oridion Medical (1987) Ltd. Drying substances, preparation and use thereof
SG10201605780QA (en) 2009-03-19 2016-09-29 Emd Millipore Corp Removal of microorganisms from fluid samples using nanofiber filtration media
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
CN102481597B (zh) * 2009-08-24 2014-06-25 巴斯夫欧洲公司 聚电解质络合物用于制备具有隔氧特性的聚合物膜的用途
JP5948243B2 (ja) 2009-08-26 2016-07-06 エヴォクア ウォーター テクノロジーズ ピーティーイー リミテッド イオン交換膜
US20110147308A1 (en) * 2009-12-21 2011-06-23 Siemens Water Technologies Corp. Charged Porous Polymeric Membranes and Their Preparation
US9914097B2 (en) 2010-04-30 2018-03-13 Evoqua Water Technologies Llc Fluid flow distribution device
ES2774949T3 (es) 2010-08-10 2020-07-23 Emd Millipore Corp Método para la eliminación de retrovirus
WO2012040412A1 (en) 2010-09-24 2012-03-29 Siemens Industry, Inc. Fluid control manifold for membrane filtration system
SG189895A1 (en) 2010-10-15 2013-06-28 Siemens Industry Inc Anion exchange membranes and process for making
EA023933B1 (ru) * 2010-10-15 2016-07-29 ЭВОКУА УОТЕР ТЕКНОЛОДЖИЗ ЭлЭлСи Способ получения катионообменной мембраны
WO2012081026A2 (en) 2010-12-12 2012-06-21 Ben-Gurion University Of The Negev Research And Development Authority Anion exchange membranes, methods of preparation and uses
EP2654930B1 (en) * 2010-12-22 2020-06-03 Fresenius Medical Care Delamination free membrane
CN103459006B (zh) 2011-04-01 2016-01-06 Emd密理博公司 含有纳米纤维的复合材料结构
EP2704759A4 (en) 2011-05-05 2015-06-03 Eksigent Technologies Llc COUPLING GEL FOR ELECTROCINETIC FLUID DISTRIBUTION SYSTEMS
JP5689765B2 (ja) * 2011-07-29 2015-03-25 富士フイルム株式会社 二酸化炭素分離部材、その製造方法及び二酸化炭素分離モジュール
CN103958034B (zh) 2011-09-30 2017-03-22 伊沃夸水处理技术有限责任公司 隔离阀
AU2013200833B2 (en) 2011-09-30 2015-09-17 Evoqua Water Technologies Llc Improved manifold arrangement
KR101440971B1 (ko) * 2012-01-05 2014-09-17 주식회사 엘지화학 내오염성이 우수한 역삼투막 및 그 제조방법
WO2013180517A1 (ko) * 2012-05-31 2013-12-05 주식회사 엘지화학 카보디이미드계 화합물을 포함하는 고투과 역삼투막 및 이를 제조하는 방법
US9533261B2 (en) 2012-06-28 2017-01-03 Evoqua Water Technologies Llc Potting method
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
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
WO2014052139A1 (en) 2012-09-27 2014-04-03 Evoqua Water Technologies Llc Gas scouring apparatus for immersed membranes
WO2014055123A1 (en) 2012-10-04 2014-04-10 Evoqua Water Technologies Llc High-performance anion exchange membranes and methods of making same
US9540261B2 (en) * 2012-10-11 2017-01-10 Evoqua Water Technologies Llc Coated ion exchange membranes
WO2014058470A1 (en) * 2012-10-11 2014-04-17 Evoqua Water Technologies Llc Ion exchange membranes and methods of making the same
US12350627B2 (en) 2013-02-28 2025-07-08 Aqua Membranes, Inc. Permeate flow patterns
EP3052221B1 (en) 2013-10-02 2022-12-14 Rohm & Haas Electronic Materials Singapore Pte. Ltd Device for repairing a membrane filtration module
WO2015200239A1 (en) 2014-06-26 2015-12-30 Emd Millipore Corporation Filter structure with enhanced dirt holding capacity
US9782727B2 (en) 2014-07-14 2017-10-10 International Business Machines Corporation Filtration membranes with functionalized star polymers
EP3199520B1 (en) * 2014-09-26 2019-12-25 Tokyo Ohka Kogyo Co., Ltd. Sulfonium salt, photoacid generator, and photosensitive composition
US10005042B2 (en) 2015-02-16 2018-06-26 International Business Machines Corporation Thin film composite forward osmosis membranes with performance enhancing layers
US9931598B2 (en) 2015-02-16 2018-04-03 International Business Machines Corporation Anti-fouling coatings with star polymers for filtration membranes
WO2016167871A1 (en) 2015-04-17 2016-10-20 Emd Millipore Corporation Method of purifying a biological materia of interest in a sample using nanofiber ultrafiltration membranes operated in tangential flow filtration mode
CN104888606B (zh) * 2015-05-21 2017-03-01 浙江大学 基于聚丙烯酸钠‑阳离子表面活性剂复合物渗透汽化优先透醇膜的制备方法
CN107847869B (zh) 2015-07-14 2021-09-10 罗门哈斯电子材料新加坡私人有限公司 用于过滤系统的通气装置
CN108367244B (zh) 2015-07-29 2022-05-03 格雷迪安特公司 渗透脱盐方法和相关系统
JP2019529099A (ja) 2016-09-20 2019-10-17 アクア メンブレインズ エルエルシー 透過流パターン
WO2018094287A1 (en) 2016-11-19 2018-05-24 Aqua Membranes Llc Interfernce patterns for spiral-wound elements
EP3609607B1 (en) 2017-04-12 2024-05-22 Aqua Membranes, Inc. Graded spacers for filtration wound elements
US11745143B2 (en) 2017-04-20 2023-09-05 Aqua Membranes, Inc. Mixing-promoting spacer patterns for spiral-wound elements
US11083997B2 (en) 2017-04-20 2021-08-10 Aqua Membranes Inc. Non-nesting, non-deforming patterns for spiral-wound elements
WO2018208902A1 (en) * 2017-05-10 2018-11-15 Northwestern University Porous polyelectrolyte complex films and foams and related methods
EP3655142A1 (en) 2017-07-21 2020-05-27 Merck Millipore Ltd Non-woven fiber membranes
US11745144B2 (en) 2017-10-13 2023-09-05 Aqua Membranes Inc. Bridge support and reduced feed spacers for spiral-wound elements
CN108722208B (zh) * 2018-05-30 2020-09-15 哈尔滨工业大学（威海） 一种正电/负电Janus纳滤膜的制备方法
SG11202101293TA (en) 2018-08-22 2021-03-30 Gradiant Corp Liquid solution concentration system comprising isolated subsystem and related methods
KR102771421B1 (ko) 2018-09-25 2025-02-20 에보쿠아 워터 테크놀로지스 엘엘씨 Uv 개시 중합을 통한 이온 교환막
EP3680005A1 (en) * 2019-01-10 2020-07-15 Gambro Lundia AB Membrane with immobilized anticoagulant and process for producing same
WO2020154734A1 (en) 2019-01-27 2020-07-30 Aqua Membranes Inc. Composite membranes
KR20220055466A (ko) 2019-08-06 2022-05-03 아쿠아 멤브레인스 인코포레이티드 나선형-권취 요소를 위한 바람직한 유동 경로
US11241657B2 (en) 2019-11-22 2022-02-08 Pall Corporation Filter for removing silica from ultra pure water and method of use
WO2021207256A1 (en) 2020-04-07 2021-10-14 Aqua Membranes Inc. Independent spacers and methods
AU2021383601A1 (en) 2020-11-17 2023-06-08 Gradiant Corporaton Osmotic methods and systems involving energy recovery
CN112808034B (zh) * 2020-12-22 2022-07-29 浙江迪萧科技有限公司 一种复合疏松纳滤膜的制备方法
JP2025502785A (ja) 2021-12-28 2025-01-28 アクア メンブレインズ，インコーポレイテッド 容量が向上した渦巻型エレメント構造

Family Cites Families (81)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2676166A (en) * 1952-04-01 1954-04-20 Du Pont Polymeric quaternary ammonium compounds
US2891025A (en) * 1954-08-30 1959-06-16 American Cyanamid Co Copolymer of acrylonitrile and a quaternary imidazolium compound, method of making same, and a spinning solution thereof
US3094494A (en) * 1959-01-26 1963-06-18 Rohm & Haas Improved ion exchange cellular products
LU39199A1 (cg-RX-API-DMAC7.html) * 1959-10-02
US3544499A (en) * 1961-05-25 1970-12-01 Dow Chemical Co Sulfonium modified water soluble surface coatings
US3276598A (en) * 1961-10-24 1966-10-04 Dow Chemical Co Supported dialysis membrane
DE1214985B (de) 1961-11-29 1966-04-21 Basf Ag Verwendung von Dispersionen kationischer Copolymerisate zum Leimen von Papier
US3335100A (en) * 1963-07-05 1967-08-08 Dow Chemical Co Polymers of sulfonium and quaternary ammonium moieties
US3269991A (en) * 1963-11-29 1966-08-30 Union Carbide Corp Ethylenically unsaturated sulfines and polymers thereof
US3419431A (en) * 1964-01-27 1968-12-31 Amicon Corp Polyelectrolyte gel separator and battery therewith
US3429839A (en) * 1965-04-23 1969-02-25 Ferrania Spa Epoxy polymer derived polymers containing quaternary phosphonium groups
US3510418A (en) * 1966-02-24 1970-05-05 Tokuyama Soda Kk Ion selective membrane
US3419430A (en) * 1966-09-26 1968-12-31 Amicon Corp Electrical energy device containing polyelectrolyte gel separator
US3578458A (en) * 1966-10-05 1971-05-11 Polaroid Corp Ionically cross-linked photopolymerized addition polymers
US3494780A (en) * 1966-11-04 1970-02-10 Dow Chemical Co Method for enhancing permeability of separatory membranes
US3532527A (en) 1966-11-04 1970-10-06 Dow Chemical Co Permeable separatory membranes
US3546142A (en) * 1967-01-19 1970-12-08 Amicon Corp Polyelectrolyte structures
US3467604A (en) * 1967-07-13 1969-09-16 Amicon Corp Moisture permeable polyion complex-resinous composites
US3567613A (en) 1968-05-10 1971-03-02 Grace W R & Co Method for flameproofing combustible materials
US3615024A (en) 1968-08-26 1971-10-26 Amicon Corp High flow membrane
US3567632A (en) * 1968-09-04 1971-03-02 Du Pont Permselective,aromatic,nitrogen-containing polymeric membranes
US3551331A (en) * 1969-09-22 1970-12-29 Du Pont Reverse osmosis separations using a treated polyamide membrane
US3637432A (en) * 1969-10-02 1972-01-25 Dow Chemical Co Preparation of inherently colloidally stable interpolymer latexes by a continuous addition polymerization technique and articles coated therewith
US3636052A (en) * 1969-10-15 1972-01-18 Dow Chemical Co Hydroxyarylpolymethylenesulfonium zwitterions
JPS501707B1 (cg-RX-API-DMAC7.html) * 1969-12-20 1975-01-21
US3744642A (en) * 1970-12-30 1973-07-10 Westinghouse Electric Corp Interface condensation desalination membranes
US3723386A (en) * 1971-03-29 1973-03-27 Dow Chemical Co Polymers from hydroxyarylmethylenesulfonium zwitterions
US3962165A (en) * 1971-06-29 1976-06-08 Ppg Industries, Inc. Quaternary ammonium salt-containing resin compositions
US3775172A (en) * 1972-01-07 1973-11-27 Ncr Process for film-coating articles
US4096154A (en) * 1972-06-30 1978-06-20 Ciba-Geigy Corporation Process for the manufacture of compounds containing vinyl groups
US3804797A (en) * 1972-09-13 1974-04-16 Dow Chemical Co Coating compositions comprising cyclic sulfonium zwitterions with carboxy containing polymers
US3886066A (en) * 1972-11-06 1975-05-27 Du Pont Tannin treatment for non-porous semipermeable membranes
FR2221469B1 (cg-RX-API-DMAC7.html) * 1973-03-13 1977-06-17 Maruzen Oil Co Ltd
JPS572362B2 (cg-RX-API-DMAC7.html) * 1973-03-13 1982-01-16
US3965032A (en) * 1973-04-16 1976-06-22 The Dow Chemical Company Colloidally stable dispersions
US3998776A (en) * 1973-08-29 1976-12-21 The Dow Chemical Company Isothiouronium stabilized latexes
US4001154A (en) * 1973-09-04 1977-01-04 The Dow Chemical Company Primer adhesive composition
US3877978A (en) * 1974-03-27 1975-04-15 Us Interior Semipermeable membranes
US3926798A (en) * 1974-10-17 1975-12-16 Us Interior Reverse osmosis membrane
DE2651505A1 (de) * 1976-11-11 1978-05-24 Bayer Ag Kationische elektrolytstabile dispersionen
US4020030A (en) * 1975-02-24 1977-04-26 The Dow Chemical Company Reaction products of epoxy resins, organic sulfides and protic acids
US4017372A (en) * 1975-04-21 1977-04-12 The Dow Chemical Company Process for electrodeposition of cross-linked polymer coatings
US4056501A (en) 1975-04-21 1977-11-01 The Dow Chemical Company Cationic structured-particle latexes
US4002586A (en) 1975-04-21 1977-01-11 The Dow Chemical Company Method for preparing cationic latexes
US4005012A (en) * 1975-09-22 1977-01-25 The United States Of America As Represented By The Secretary Of The Interior Semipermeable membranes and the method for the preparation thereof
US4020230A (en) 1975-10-03 1977-04-26 The Dow Chemical Company Microporous polyethylene hollow fibers and process of preparing them
US4089877A (en) 1975-10-28 1978-05-16 The Dow Chemical Company Process for producing hydroxyarylpolymethylenesulfonium salts
US4038485A (en) * 1976-03-18 1977-07-26 Miles Laboratories, Inc. Test composition, device, and method
US4230463A (en) 1977-09-13 1980-10-28 Monsanto Company Multicomponent membranes for gas separations
US4111194A (en) * 1976-12-27 1978-09-05 Rollin Webb Cox Posterior knee immobilizing brace
DE2721985A1 (de) * 1977-05-14 1978-11-16 Bayer Ag Verfahren zur herstellung von urethan- und/oder harnstoffgruppen aufweisenden polyisocyanat polyadditionsprodukten
US4265745A (en) 1977-05-25 1981-05-05 Teijin Limited Permselective membrane
US4214020A (en) 1977-11-17 1980-07-22 Monsanto Company Processes for coating bundles of hollow fiber membranes
JPS54107882A (en) * 1978-02-13 1979-08-24 Toray Ind Inc Semipermeable membrane
US4277344A (en) * 1979-02-22 1981-07-07 Filmtec Corporation Interfacially synthesized reverse osmosis membrane
US4225407A (en) * 1979-04-04 1980-09-30 The Dow Chemical Company Cathodic electrodeposition of polymers onto a conductive surface
US4214096A (en) * 1979-06-15 1980-07-22 The Dow Chemical Company Novel isothiouronium salts
US4426489A (en) * 1980-02-21 1984-01-17 The Dow Chemical Company Surface active polymeric surfactants containing side chain hydrophobes
US4337185A (en) * 1980-06-23 1982-06-29 The Dow Chemical Company Process for making cationic structured particle latexes using reactive polymeric surfactants
US4477640A (en) 1980-06-30 1984-10-16 The Dow Chemical Company Addition polymerizable aromatic sulfonium salts and polymers thereof
US4360434A (en) * 1981-01-15 1982-11-23 Teijin Limited Amphoteric ion-permeable composite membrane
US4432875A (en) * 1981-05-29 1984-02-21 Brunswick Corporation Semi-permeable membranes and processes for making the same
US4383073A (en) * 1981-08-20 1983-05-10 The Dow Chemical Company Cationic resin curable with acid catalyzed cross-linkers
US4431768A (en) * 1982-05-04 1984-02-14 The Dow Chemical Company Aqueous compositions containing organic polymers curable at low temperatures in the wet state
US4430807A (en) 1982-05-17 1984-02-14 The Dow Chemical Company Process for drying water-wet membranes
US4539373A (en) * 1982-07-12 1985-09-03 The Dow Chemical Company Thermoplastic polyelectrolyte complexes
US4415455A (en) * 1982-11-09 1983-11-15 Rohm And Haas Company Reverse osmosis membranes based on hydroxyalkyl methacrylate and methacrylic acid copolymers
JPS59115704A (ja) * 1982-12-24 1984-07-04 Toray Ind Inc 半透膜の処理法
US4444977A (en) * 1983-03-07 1984-04-24 The Dow Chemical Company Curable oxirane formulations
US4606943A (en) * 1983-03-18 1986-08-19 Culligan International Company Method for preparation of semipermeable composite membrane
JPS59186605A (ja) * 1983-04-06 1984-10-23 Oosakashi 高分子電解質錯合体膜
EP0124676A1 (en) * 1983-05-04 1984-11-14 IRD-Biomaterial AB A surface modified solid substrate and a method for its preparation
JPS6035936A (ja) * 1983-08-08 1985-02-23 Hitachi Ltd 回転電機
GB8331860D0 (en) * 1983-11-29 1984-01-04 Ici Plc Exchange membrane
DE3380299D1 (en) * 1983-12-14 1989-09-07 Dow Chemical Co A process for separating mixtures of water and an organic compoundand a water-selective permeation membrane
US4520044A (en) * 1984-07-30 1985-05-28 E. I. Du Pont De Nemours And Company Production of composite membranes
US4806189A (en) * 1984-08-13 1989-02-21 Monsanto Company Composite fluid separation membranes
EP0179474A3 (en) * 1984-10-24 1988-07-13 E.I. Du Pont De Nemours And Company Gas separation membrane and process for preparing it
JPH0647058B2 (ja) * 1985-03-13 1994-06-22 旭化成工業株式会社 気体選択透過膜
US4704324A (en) * 1985-04-03 1987-11-03 The Dow Chemical Company Semi-permeable membranes prepared via reaction of cationic groups with nucleophilic groups
US4705636A (en) * 1985-07-19 1987-11-10 The Dow Chemical Company Method of making a coating and a permselective membrane, ionic polymer therefor, and products thereof

Also Published As

Publication number Publication date
US4797187A (en) 1989-01-10
EP0220660A3 (en) 1989-10-04
WO1987002682A1 (en) 1987-05-07
EP0220660A2 (en) 1987-05-06
AU6595786A (en) 1987-05-19
EP0220660B1 (en) 1992-03-11
JPH0474043B2 (cg-RX-API-DMAC7.html) 1992-11-25
DE3684227D1 (de) 1992-04-16
JPS62502320A (ja) 1987-09-10
CA1298739C (en) 1992-04-14
IL80395A0 (en) 1987-01-30
AU573465B2 (en) 1988-06-09
US4704324A (en) 1987-11-03

Similar Documents

Publication Publication Date Title
IL80395A0 (en) Semi-permeable membranes prepared via reaction of cationic groups with nucleophilic groups
ZA861054B (en) Semipermeable membrane support and process for preparation thereof
EP0211633A3 (en) Semipermeable composite membrane
EP0160268A3 (en) Blood oxygenator using a hollow-fiber membrane
EP0217212A3 (en) Semipermeable composite membrane and process for preparation thereof
EP0204468A3 (en) Membrane
EP0228885A3 (en) Porous membrane for use in reaction process
DK595486D0 (da) Fluorerede polymermembraner til gasseparationsprocesser
AU570132B2 (en) Hydrophilisation of hydrophobic polymers for use as semipermeable membranes
GB8614477D0 (en) Preparation of catalyst
GB8701193D0 (en) Polymeric microporous membranes
GB8610339D0 (en) Semipermeable filtration membrane
GB8620244D0 (en) Locating & purifying dna containing missmatches
GR861669B (en) Process for the preparation of silver containing catalyst
DE3660549D1 (en) Process for the preparation of bipolar membranes
GB2188275B (en) Polyamide membranes
EP0194546A3 (en) Membrane with pores
EP0223709A3 (en) Method for production of porous membrane
GB8522847D0 (en) Supported membrane
DE3667029D1 (en) Membrane filtration for analysis
PH21618A (en) Chemical purification process
GB2183539B (en) Hollow fibre membrane for dialysis
EG18243A (en) Osmosis membrane system
GB2096941B (en) Semi-permeable membrane
EP0214442A3 (en) Process for the preparation of resole-curable lacquer binders containing ureum groups