ATE82703T1 - Chlorbestaendige halbdurchlaessige membranen. - Google Patents

Chlorbestaendige halbdurchlaessige membranen.

Info

Publication number: ATE82703T1
Authority: AT; Austria
Prior art keywords: composite; support material; chlorine; reaction product; aqueous solution
Prior art date: 1987-06-08

Application number

AT89908103T

Other languages

English (en)

Inventor

Chin N Tran

Hong C Chu

William G Light

Original Assignee

Allied Signal Inc

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.)

1987-06-08

Filing date

1989-03-16

Publication date

1992-12-15

1989-03-16 Application filed by Allied Signal Inc filed Critical Allied Signal Inc

1992-12-15 Application granted granted Critical

1992-12-15 Publication of ATE82703T1 publication Critical patent/ATE82703T1/de

Links

239000012528 membrane Substances 0.000 title abstract 4
239000000460 chlorine Substances 0.000 title abstract 3
229910052801 chlorine Inorganic materials 0.000 title abstract 3
KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 title 1
239000002131 composite material Substances 0.000 abstract 4
239000000463 material Substances 0.000 abstract 4
150000001875 compounds Chemical class 0.000 abstract 3
ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 abstract 2
239000002253 acid Substances 0.000 abstract 2
239000007864 aqueous solution Substances 0.000 abstract 2
125000003118 aryl group Chemical group 0.000 abstract 2
239000007795 chemical reaction product Substances 0.000 abstract 2
DWAQJAXMDSEUJJ-UHFFFAOYSA-M Sodium bisulfite Chemical compound [Na+].OS([O-])=O DWAQJAXMDSEUJJ-UHFFFAOYSA-M 0.000 abstract 1
238000010612 desalination reaction Methods 0.000 abstract 1
150000004820 halides Chemical class 0.000 abstract 1
238000002386 leaching Methods 0.000 abstract 1
239000003960 organic solvent Substances 0.000 abstract 1
229920002492 poly(sulfone) Polymers 0.000 abstract 1
229920000768 polyamine Polymers 0.000 abstract 1
239000013535 sea water Substances 0.000 abstract 1
238000000926 separation method Methods 0.000 abstract 1
235000010267 sodium hydrogen sulphite Nutrition 0.000 abstract 1
239000000243 solution Substances 0.000 abstract 1
238000005406 washing Methods 0.000 abstract 1
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1

Classifications

- 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
- B01D69/1213—Laminated layers
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B5/00—Anti-hunting arrangements
- G05B5/01—Anti-hunting arrangements electric
- 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
- B01D67/0006—Organic membrane manufacture by chemical reactions
- 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
- 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
- B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
- B01D69/10—Supported membranes; Membrane supports
- B01D69/107—Organic support material
- 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
- B01D69/1251—In situ manufacturing by polymerisation, polycondensation, cross-linking or chemical reaction by interfacial polymerisation
- 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
- B01D71/58—Other polymers having nitrogen in the main chain, with or without oxygen or carbon only
- B01D71/60—Polyamines
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2323/00—Details relating to membrane preparation
- B01D2323/08—Specific temperatures applied
- B01D2323/081—Heating
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2323/00—Details relating to membrane preparation
- B01D2323/219—Specific solvent system
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2323/00—Details relating to membrane preparation
- B01D2323/48—Influencing the pH
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2325/00—Details relating to properties of membranes
- B01D2325/30—Chemical resistance
- 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]
- Y10T428/31536—Including interfacial reaction product of adjacent layers

Landscapes

Chemical & Material Sciences (AREA)
Chemical Kinetics & Catalysis (AREA)
Engineering & Computer Science (AREA)
Manufacturing & Machinery (AREA)
Physics & Mathematics (AREA)
General Physics & Mathematics (AREA)
Automation & Control Theory (AREA)
Inorganic Chemistry (AREA)
Separation Using Semi-Permeable Membranes (AREA)

AT89908103T 1987-06-08 1989-03-16 Chlorbestaendige halbdurchlaessige membranen. ATE82703T1 (de)

Applications Claiming Priority (3)

Application Number	Priority Date	Filing Date	Title
US07/059,295 US4830885A (en)	1987-06-08	1987-06-08	Chlorine-resistant semipermeable membranes
ZA892353A ZA892353B (en)	1987-06-08	1989-03-30	Chlorine-resistant semipermeable membranes
CN89102360A CN1029824C (zh)	1987-06-08	1989-04-17	耐氯半透膜

Publications (1)

Publication Number	Publication Date
ATE82703T1 true ATE82703T1 (de)	1992-12-15

Family

ID=36721083

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AT89908103T ATE82703T1 (de)	1987-06-08	1989-03-16	Chlorbestaendige halbdurchlaessige membranen.

Country Status (8)

Country	Link
US (1)	US4830885A (de)
EP (1)	EP0462967B1 (de)
KR (1)	KR970006838B1 (de)
CN (1)	CN1029824C (de)
AT (1)	ATE82703T1 (de)
AU (1)	AU634717B2 (de)
WO (1)	WO1990010494A1 (de)
ZA (1)	ZA892353B (de)

Families Citing this family (83)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4830885A (en) *	1987-06-08	1989-05-16	Allied-Signal Inc.	Chlorine-resistant semipermeable membranes
US4938872A (en) *	1989-06-07	1990-07-03	E. I. Du Pont De Nemours And Company	Treatment for reverse osmosis membranes
US4983291A (en) *	1989-12-14	1991-01-08	Allied-Signal Inc.	Dry high flux semipermeable membranes
US5194159A (en) *	1989-12-27	1993-03-16	Union Carbide Chemicals & Plastics Technology Corporation	Treatment of lower glycol-containing operative fluids
US5102549A (en)	1989-12-27	1992-04-07	Union Carbide Chemicals & Plastics Technology Corporation	Treatment of lower glycol-containing operative fluids
US5034134A (en) *	1989-12-27	1991-07-23	Union Carbide Chemicals And Plastics Technology Corporation	Treatment of impurity-containing liquid streams in ethylene oxide/glycol processes with semi-permeable membranes
DK0503596T3 (da) *	1991-03-12	1996-07-29	Toray Industries	Fremgangsmåde til fremstilling af en semipermeabel kompositmembran
US5271843A (en) *	1991-09-09	1993-12-21	Allied-Signal Inc.	Chlorine-tolerant, thin-film composite membrane
US5234598A (en) *	1992-05-13	1993-08-10	Allied-Signal Inc.	Thin-film composite membrane
US5368889A (en) *	1993-04-16	1994-11-29	The Dow Chemical Company	Method of making thin film composite membranes
EP0636403A3 (de) *	1993-07-28	1996-03-27	Toyo Boseki	Hämodialysemembran aus Celluloseacetat.
SE503195C2 (sv) *	1994-08-31	1996-04-15	Electrolux Ab	Morfolindiamin, interfaspolymer baserad på denna amin, membran med osmotiska egenskaper innefattande denna polymer, sätt att framställa membranet samt användning av detta vid vattenrening.
US5693227A (en) *	1994-11-17	1997-12-02	Ionics, Incorporated	Catalyst mediated method of interfacial polymerization on a microporous support, and polymers, fibers, films and membranes made by such method
JP3489922B2 (ja) *	1994-12-22	2004-01-26	日東電工株式会社	高透過性複合逆浸透膜の製造方法
US5614099A (en) *	1994-12-22	1997-03-25	Nitto Denko Corporation	Highly permeable composite reverse osmosis membrane, method of producing the same, and method of using the same
US5989426A (en) *	1995-07-05	1999-11-23	Nitto Denko Corp.	Osmosis membrane
US6171497B1 (en)	1996-01-24	2001-01-09	Nitto Denko Corporation	Highly permeable composite reverse osmosis membrane
JP3681214B2 (ja) *	1996-03-21	2005-08-10	日東電工株式会社	高透過性複合逆浸透膜
FR2761617A1 (fr) *	1997-04-04	1998-10-09	Fluid Sys Corp	Membranes de separation selective
US6015495A (en) *	1998-02-18	2000-01-18	Saehan Industries Incorporation	Composite polyamide reverse osmosis membrane and method of producing the same
US6063278A (en) *	1998-04-28	2000-05-16	Saehan Industries Inc.	Composite polyamide reverse osmosis membrane and method of producing the same
EP0992277B1 (de) *	1998-10-09	2004-04-07	Saehan Industries, Inc.	Trockene halbdurchlässige Umkehrosmosemembran und Verfahren zu ihrer Herstellung unter Verwendung von Sacchariden
US6368507B1 (en)	1998-10-14	2002-04-09	Saekan Industries Incorporation	Composite polyamide reverse osmosis membrane and method of producing the same
US6245234B1 (en)	1999-06-03	2001-06-12	Saehan Industries Incorporation	Composite polyamide reverse osmosis membrane and method of producing the same
US6833073B2 (en) *	2001-10-09	2004-12-21	Pti Advanced Filtration, Inc.	Composite nanofiltration and reverse osmosis membranes and method for producing the same
WO2003074152A1 (en) *	2002-03-01	2003-09-12	Ge Osmonics, Inc.	A process for preparing semipermeable membranes having improved permeability
WO2004078328A1 (en) *	2003-03-03	2004-09-16	General Electric Company	Process for preparing semipermeable membranes
JP4656502B2 (ja) *	2004-10-01	2011-03-23	日東電工株式会社	複合半透膜及びその製造方法
JP4656503B2 (ja) *	2004-10-01	2011-03-23	日東電工株式会社	複合半透膜及びその製造方法
JP4656511B2 (ja) *	2004-10-04	2011-03-23	日東電工株式会社	複合逆浸透膜の製造方法
NL1030288C2 (nl) *	2004-10-29	2006-10-09	Toray Industries	Semipermeabel composietmembraan, productiewerkwijze daarvan, en element, fluïdumscheidingsinstallatie en werkwijze voor behandeling van water onder toepassing van hetzelfde.
US20060207930A1 (en) *	2005-03-15	2006-09-21	Yeager Gary W	Interfacial composite structure and method of making them
US20060249446A1 (en) *	2005-05-04	2006-11-09	Gary Yeager	Solvent-resistant composite membrane composition
US7913857B2 (en) *	2006-02-01	2011-03-29	Woongjin Chemical Co., Ltd.	Selective membrane having a high fouling resistance
US7537697B2 (en) *	2006-02-01	2009-05-26	Woongjin Chemical Co., Ltd.	Selective membrane having a high fouling resistance
US20070227966A1 (en)	2006-03-31	2007-10-04	Koo Ja-Young	Composite polyamide reverse osmosis membrane showing high boron rejection and method of producing the same
JP2008093544A (ja) *	2006-10-10	2008-04-24	Nitto Denko Corp	複合半透膜及びその製造方法
JP4936438B2 (ja) *	2006-10-10	2012-05-23	日東電工株式会社	乾燥複合半透膜の製造方法
JP2008246419A (ja) *	2007-03-30	2008-10-16	Nitto Denko Corp	複合半透膜の製造方法
US7806275B2 (en) *	2007-05-09	2010-10-05	The United States Of America As Represented By The Secretary Of The Interior, The Bureau Of Reclamation	Chlorine resistant polyamides and membranes made from the same
US20090242831A1 (en) *	2008-03-27	2009-10-01	General Electric Company	Aromatic halosulfonyl isocyanate compositions
US20090242479A1 (en) *	2008-03-27	2009-10-01	General Electric Company	Aromatic halosulfonyl isocyanate compositions
US8177978B2 (en)	2008-04-15	2012-05-15	Nanoh20, Inc.	Reverse osmosis membranes
KR20100003799A (ko)	2008-07-02	2010-01-12	웅진케미칼 주식회사	높은 안티파울링성을 가지는 선택적 분리막 및 그의제조방법
WO2011008549A2 (en) *	2009-06-29	2011-01-20	NanoH2O Inc.	Improved hybrid tfc ro membranes with nitrogen additives
CN107641151B (zh)	2010-05-14	2021-10-01	百深公司	Ospa嵌合体及其在疫苗中的用途
GB201012083D0 (en)	2010-07-19	2010-09-01	Imp Innovations Ltd	Thin film composite membranes for separation
JP5968328B2 (ja)	2010-11-10	2016-08-10	ナノエイチツーオー・インコーポレーテッド	非金属添加剤を含む改良された混成ｔｆｃｒｏ膜
JP5912133B2 (ja)	2011-01-24	2016-04-27	ダウグローバルテクノロジーズエルエルシー	複合ポリアミド膜
US8820540B2 (en)	2011-01-28	2014-09-02	Woongjin Chemical Co., Ltd.	Method for preparing a filtration membrane and filtration membrane prepared by said method
KR101240956B1 (ko)	2011-02-18	2013-03-11	웅진케미칼 주식회사	내오염성능이 우수한 역삼투 복합막 및 그의 제조방법
CN103764264B (zh)	2011-08-31	2016-11-16	陶氏环球技术有限责任公司	源自包含胺反应性官能团和含磷官能团的单体的复合聚酰胺膜
US9029600B2 (en)	2011-09-29	2015-05-12	Dow Global Technologies Llc	Method for preparing high purity mono-hydrolyzed acyl halide compound
GB201117950D0 (en)	2011-10-18	2011-11-30	Imp Innovations Ltd	Membranes for separation
JP6018222B2 (ja)	2012-01-06	2016-11-02	ダウグローバルテクノロジーズエルエルシー	複合ポリアミド膜
US9662615B2 (en)	2012-07-19	2017-05-30	Dow Global Technologies Llc	Composite polyamide membrane
US9056284B2 (en)	2012-08-10	2015-06-16	The United States Of America, As Represented By The Secretary Of The Interior	Chlorine resistant amides, polyamides, and membranes made from the same
CN104918687A (zh)	2013-01-14	2015-09-16	陶氏环球技术有限责任公司	使用非极性溶剂的掺合物经由界面聚合制造复合聚酰胺膜
US9895666B2 (en)	2013-01-14	2018-02-20	Dow Global Technologies Llc	Composite polyamide membrane made using substituted benzamide monomer
US9533262B2 (en)	2013-03-14	2017-01-03	Dow Global Technologies Llc	Composite polyamide membrane including dissolvable polymer coating
US9289729B2 (en)	2013-03-16	2016-03-22	Dow Global Technologies Llc	Composite polyamide membrane derived from carboxylic acid containing acyl halide monomer
US9051227B2 (en)	2013-03-16	2015-06-09	Dow Global Technologies Llc	In-situ method for preparing hydrolyzed acyl halide compound
US9051417B2 (en)	2013-03-16	2015-06-09	Dow Global Technologies Llc	Method for solubilizing carboxylic acid-containing compound in hydrocarbon solvent
CN105163837B (zh)	2013-05-03	2017-05-10	陶氏环球技术有限责任公司	衍生自脂肪族非环状叔胺化合物的复合聚酰胺膜
CN106170333B (zh)	2013-12-02	2019-02-15	陶氏环球技术有限责任公司	用二羟基芳基化合物和亚硝酸处理的复合聚酰胺膜
EP3077088B1 (de)	2013-12-02	2017-12-27	Dow Global Technologies LLC	Methode zur herstellung einer mit salpetriger säure nachbehandelten polyamid-kompositmembran
US10155204B2 (en)	2013-12-26	2018-12-18	Lg Chem, Ltd.	High-functional polyamide-based dry water treatment separator and method for manufacturing same
JP6535010B2 (ja)	2014-01-09	2019-06-26	ダウグローバルテクノロジーズエルエルシー	好ましいアゾ含有量を有する複合ポリアミド皮膜
CN105873666B (zh)	2014-01-09	2019-11-01	陶氏环球技术有限责任公司	具有高酸含量和低偶氮含量的复合聚酰胺膜
WO2015105636A1 (en)	2014-01-09	2015-07-16	Dow Global Technologies Llc	Composite polyamide membrane having azo content and high acid content
JP2015147194A (ja) *	2014-02-07	2015-08-20	日東電工株式会社	複合半透膜の製造方法
GB201403432D0 (en)	2014-02-27	2014-04-16	Univ Leuven Kath	Improved method for synthesis of composite membranes
JP2017513703A (ja)	2014-04-28	2017-06-01	ダウグローバルテクノロジーズエルエルシー	亜硝酸で後処理される複合ポリアミド膜
KR102359211B1 (ko)	2014-05-14	2022-02-07	다우 글로벌 테크놀로지스 엘엘씨	아질산으로 후처리된 복합 폴리아미드 막
US9795928B2 (en)	2014-06-24	2017-10-24	Nano And Advanced Materials Institute Limited	Stepwise interfacial polymerization technique with different reagent solution designs to prepare hollow fiber nanofiltration membrane composites
CN105771700A (zh) *	2014-12-15	2016-07-20	华东理工大学	采用混合二胺单体的耐氯纳滤膜及其制备方法
US9861940B2 (en)	2015-08-31	2018-01-09	Lg Baboh2O, Inc.	Additives for salt rejection enhancement of a membrane
US9737859B2 (en)	2016-01-11	2017-08-22	Lg Nanoh2O, Inc.	Process for improved water flux through a TFC membrane
US10155203B2 (en)	2016-03-03	2018-12-18	Lg Nanoh2O, Inc.	Methods of enhancing water flux of a TFC membrane using oxidizing and reducing agents
ES2858432T3 (es) *	2016-10-26	2021-09-30	Emd Millipore Corp	Reducción de los niveles de beta-glucano lixiviable de los materiales de filtro que contienen celulosa
US10646829B2 (en)	2017-06-22	2020-05-12	Teledyne Scientific & Imaging, Llc	High flux, chlorine resistant coating for sulfate removal membranes
CN109603587A (zh) *	2018-11-16	2019-04-12	蓝星（杭州）膜工业有限公司	一种抗氧化不变色复合反渗透膜的制备方法
CN118987994B (zh) *	2024-10-24	2025-02-18	浙江浙能技术研究院有限公司	一种抗氧化型聚酰胺反渗透复合膜及其制备方法

Family Cites Families (26)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3920612A (en) *	1963-01-21	1975-11-18	Standard Oil Co	Preparation of film forming polymer from carbocyclic aromatic diamine and acyl halide of trimellitic acid anhydride
US3260691A (en) *	1963-05-20	1966-07-12	Monsanto Co	Coating compositions prepared from condensation products of aromatic primary diamines and aromatic tricarboxylic compounds
US3480588A (en) *	1963-08-20	1969-11-25	Monsanto Co	Stable coating composition of a tricarboxylic acid or its partial or full ester and a diamine
US4048144A (en) *	1966-11-25	1977-09-13	Standard Oil Company (Indiana)	Preparation of solid polymers from aromatic primary diamine and acyl halide of trimellitic anhydride
US3567632A (en) *	1968-09-04	1971-03-02	Du Pont	Permselective,aromatic,nitrogen-containing polymeric membranes
US3710945A (en) *	1969-11-26	1973-01-16	Du Pont	Preservation of polyamidic membranes
US3600350A (en) *	1970-04-20	1971-08-17	Du Pont	Poly(p-benzamide) composition,process and product
US3904519A (en) *	1971-10-19	1975-09-09	Us Interior	Reverse osmosis process using crosslinked aromatic polyamide membranes
JPS5223346B2 (de) *	1972-08-30	1977-06-23
US3993625A (en) *	1973-05-28	1976-11-23	Toray Industries, Inc.	Permselective polymeric membranes of organic polyamide or polyhydrazide
US3951815A (en) *	1974-09-05	1976-04-20	Universal Oil Products Company	Composite semipermeable membranes made from polyethylenimine
US4265745A (en) *	1977-05-25	1981-05-05	Teijin Limited	Permselective membrane
US4286537A (en) *	1979-01-10	1981-09-01	Hvide J Erik	Seagoing separable tug and barge construction
US4277344A (en) *	1979-02-22	1981-07-07	Filmtec Corporation	Interfacially synthesized reverse osmosis membrane
IL64967A0 (en) *	1981-03-17	1982-04-30	Aligena Ag	Semipermeable membranes containing modified polysulfones,their manufacture and their use
DE3220376A1 (de) *	1982-05-29	1983-12-01	Seitz-Filter-Werke Theo & Geo Seitz GmbH und Co, 6550 Bad Kreuznach	Membranfilter fuer mikrofiltration und verfahren zu seiner herstellung
JPS59115704A (ja) *	1982-12-24	1984-07-04	Toray Ind Inc	半透膜の処理法
US4606943A (en) *	1983-03-18	1986-08-19	Culligan International Company	Method for preparation of semipermeable composite membrane
US4772394A (en) *	1984-12-26	1988-09-20	Uop Inc.	Chlorine-resistant semipermeable membranes
US4661254A (en) *	1985-05-23	1987-04-28	Uop Inc.	Chlorine-resistant semipermeable membranes
US4761234A (en) *	1985-08-05	1988-08-02	Toray Industries, Inc.	Interfacially synthesized reverse osmosis membrane
JPS62140608A (ja) *	1985-12-17	1987-06-24	Nitto Electric Ind Co Ltd	複合半透膜、その製造方法及び水溶液の処理方法
EP0227043A3 (de) *	1985-12-19	1988-01-27	Sumitomo Chemical Company, Limited	Halbdurchlässige zusammengesetzte Membran und Verfahren zu ihrer Herstellung
US4626468A (en) *	1986-04-23	1986-12-02	E. I. Du Pont De Nemours And Company	Microporous support layer with interfacially polymerized copolyamide thereon
US4830885A (en) *	1987-06-08	1989-05-16	Allied-Signal Inc.	Chlorine-resistant semipermeable membranes
US4792404A (en) *	1988-03-28	1988-12-20	Allied-Signal Inc.	Desalination of saline water

1987
- 1987-06-08 US US07/059,295 patent/US4830885A/en not_active Expired - Fee Related
1989
- 1989-03-16 KR KR1019910701096A patent/KR970006838B1/ko not_active Expired - Fee Related
- 1989-03-16 AU AU39661/89A patent/AU634717B2/en not_active Ceased
- 1989-03-16 WO PCT/US1989/001087 patent/WO1990010494A1/en not_active Ceased
- 1989-03-16 EP EP19890908103 patent/EP0462967B1/de not_active Expired - Lifetime
- 1989-03-16 AT AT89908103T patent/ATE82703T1/de not_active IP Right Cessation
- 1989-03-30 ZA ZA892353A patent/ZA892353B/xx unknown
- 1989-04-17 CN CN89102360A patent/CN1029824C/zh not_active Expired - Fee Related

Also Published As

Publication number	Publication date
EP0462967B1 (de)	1992-11-25
AU3966189A (en)	1990-10-09
CN1046472A (zh)	1990-10-31
CN1029824C (zh)	1995-09-27
KR920702824A (ko)	1992-10-28
AU634717B2 (en)	1993-03-04
KR970006838B1 (ko)	1997-04-30
ZA892353B (en)	1989-12-27
US4830885A (en)	1989-05-16
WO1990010494A1 (en)	1990-09-20
EP0462967A1 (de)	1992-01-02

Legal Events

Date	Code	Title	Description
1993-05-15	RER	Ceased as to paragraph 5 lit. 3 law introducing patent treaties

Publication	Publication Date	Title
ATE82703T1 (de)	1992-12-15	Chlorbestaendige halbdurchlaessige membranen.
US4950404B1 (de)	1991-10-01
CA2069510A1 (en)	1991-06-15	Dry high flux semipermeable membranes
US4606943A (en)	1986-08-19	Method for preparation of semipermeable composite membrane
US3686116A (en)	1972-08-22	Semi-permeable membranes and their use
US4012324A (en)	1977-03-15	Crosslinked, interpolymer fixed-charge membranes
JPS6322163B2 (de)	1988-05-11
Cadotte	1977	Reverse osmosis membrane
IL43201A (en)	1976-11-30	Reverse osmosis membrane and its preparation
EP0308153B1 (de)	1991-12-04	Verbundmembranen aus p-Xylylendiamid oder- Diimid zur Umkehrosmose
FR2419742A1 (fr)	1979-10-12	Procede pour ameliorer les performances de membranes semipermeables
GB1224157A (en)	1971-03-03	Itaconic acid purification process using reverse osmosis
JPS5621605A (en)	1981-02-28	Separation of liquid by semipermeable composite membrane consisting of furufryl alcohol polymer
ATE83944T1 (de)	1993-01-15	Verfahren zur herstellung von chlorbestaendigen halbdurchlaessigen polyestermembranen.
JPH0584490A (ja)	1993-04-06	有機酸含有発酵廃液の膜処理方法
JPS6418406A (en)	1989-01-23	Permselective hollow yarn composite membrane and production thereof
BG52069B2 (en)	1996-04-30	Method for the preparation of asymmetrical membranes
GB2139113A (en)	1984-11-07	Reverse osmosis membrane and method for the preparation thereof
JPS5955311A (ja)	1984-03-30	選択性透過膜の再生方法
KR900701377A (ko)	1990-12-01	내염소성 반투막 및 그 제조방법
JPS6216122B2 (de)	1987-04-10
JPS5549106A (en)	1980-04-09	Selective permeable composite membrane and production thereof
ATE66829T1 (de)	1991-09-15	Asymmetrische polyesteramid-membran und verfahren zu ihrer herstellung.
ES351354A1 (es)	1969-12-01	Un procedimiento para la fabricacion de membranas semipermeables para osmosis inversa.
EP0046813A1 (de)	1982-03-10	Semipermeable Membrane