FR2156839A1 - - Google Patents
Info
- Publication number
- FR2156839A1 FR2156839A1 FR7237121A FR7237121A FR2156839A1 FR 2156839 A1 FR2156839 A1 FR 2156839A1 FR 7237121 A FR7237121 A FR 7237121A FR 7237121 A FR7237121 A FR 7237121A FR 2156839 A1 FR2156839 A1 FR 2156839A1
- Authority
- FR
- France
- 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.)
- Granted
Links
Classifications
-
- 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
- B01D71/56—Polyamides, e.g. polyester-amides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/60—Polyamides or polyester-amides
- C08G18/603—Polyamides
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US191818A US3904519A (en) | 1971-10-19 | 1971-10-19 | Reverse osmosis process using crosslinked aromatic polyamide membranes |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2156839A1 true FR2156839A1 (fr) | 1973-06-01 |
FR2156839B1 FR2156839B1 (fr) | 1979-04-13 |
Family
ID=22707053
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7237121A Expired FR2156839B1 (fr) | 1971-10-19 | 1972-10-19 |
Country Status (7)
Country | Link |
---|---|
US (1) | US3904519A (fr) |
AU (1) | AU473950B2 (fr) |
CA (1) | CA966067A (fr) |
DE (1) | DE2251348A1 (fr) |
FR (1) | FR2156839B1 (fr) |
GB (1) | GB1390418A (fr) |
IL (1) | IL40449A (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2297223A1 (fr) * | 1975-01-08 | 1976-08-06 | Toray Industries | Procede de preparation de membranes polymeres organiques a permeabilite selective, en polyamide ou en polyhydrazide, et nouveaux produits ainsi obtenus |
FR2333548A1 (fr) * | 1975-12-06 | 1977-07-01 | Bayer Ag | Nouvelles membranes semi-permeables en copolyamides, et leur utilisation pour l'osmose inverse |
FR2368290A1 (fr) * | 1976-10-21 | 1978-05-19 | Du Pont | Procede perfectionne de fabrication de membranes a permeabilite selective |
Families Citing this family (49)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5226380A (en) * | 1975-08-25 | 1977-02-26 | Sumitomo Chem Co Ltd | Method of making semipermeable membranes |
NZ184767A (en) * | 1976-08-05 | 1980-03-05 | Tecneco Spa | Assymetric membranes from fluorinated polymeric materials |
US4259183A (en) * | 1978-11-07 | 1981-03-31 | Midwest Research Institute | Reverse osmosis membrane |
US4277344A (en) * | 1979-02-22 | 1981-07-07 | Filmtec Corporation | Interfacially synthesized reverse osmosis membrane |
DE2940447C2 (de) * | 1979-10-05 | 1982-03-18 | Forschungsinstitut Berghof GmbH, 7400 Tübingen | Integralasymmetrische Ultrafiltrationsmembran |
JPS5824304A (ja) * | 1981-08-07 | 1983-02-14 | Toray Ind Inc | 高性能半透性複合膜 |
JPS58152498A (ja) * | 1982-03-06 | 1983-09-10 | Terumo Corp | 低分子ペプチド混合物の製造方法 |
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 |
AU571194B2 (en) * | 1983-02-02 | 1988-04-14 | Memtec Limited | Cross linked porous membranes |
WO1984003054A1 (fr) * | 1983-02-02 | 1984-08-16 | Memtec Ltd | Membranes poreuses reticulees |
US4606943A (en) * | 1983-03-18 | 1986-08-19 | Culligan International Company | Method for preparation of semipermeable composite membrane |
EP0160050B1 (fr) * | 1983-10-18 | 1990-03-21 | Memtec Limited | Membranes poreuses en polyamide aliphatique substitue |
US4659475A (en) * | 1984-03-19 | 1987-04-21 | Midwest Research Institute | Composite reverse osmosis membrane comprising crosslinked poly(amine-epihalohydrin adduct) |
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 |
US4919808A (en) * | 1985-10-21 | 1990-04-24 | Allied-Signal Inc. | Semipermeable membrane compositions |
US4814082A (en) * | 1986-10-20 | 1989-03-21 | Memtec North America Corporation | Ultrafiltration thin film membranes |
US5069945A (en) * | 1986-10-20 | 1991-12-03 | Memtec America Corporation | Ultrapous thin-film membranes |
US4830885A (en) * | 1987-06-08 | 1989-05-16 | Allied-Signal Inc. | Chlorine-resistant semipermeable membranes |
US4859384A (en) * | 1987-11-18 | 1989-08-22 | Filmtec Corp. | Novel polyamide reverse osmosis membranes |
US4769148A (en) * | 1987-11-18 | 1988-09-06 | The Dow Chemical Company | Novel polyamide reverse osmosis membranes |
US4792404A (en) * | 1988-03-28 | 1988-12-20 | Allied-Signal Inc. | Desalination of saline water |
US5254261A (en) * | 1991-08-12 | 1993-10-19 | Hydranautics | Interfacially synthesized reverse osmosis membranes and processes for preparing the same |
US5271843A (en) * | 1991-09-09 | 1993-12-21 | Allied-Signal Inc. | Chlorine-tolerant, thin-film composite membrane |
US5246587A (en) * | 1991-12-23 | 1993-09-21 | Hydranautics | Interfacially synthesized reverse osmosis membranes and processes for preparing the same |
KR0118208B1 (ko) * | 1992-07-20 | 1997-09-30 | 하기주 | 방향족 폴리아미드 및 그의 제조방법 |
KR0183370B1 (ko) * | 1995-07-07 | 1999-04-15 | 김은영 | 방향족 폴리에스테르 또는 방향족 폴리에스테르와 폴리아미드 공중합체의 활성층을 갖는 역삼투용 복합막 |
US5922203A (en) * | 1997-10-07 | 1999-07-13 | Hydranautics | Amine monomers and their use in preparing interfacially synthesized membranes for reverse osmosis and nanofiltration |
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 |
US6464873B1 (en) | 1999-06-15 | 2002-10-15 | Hydranautics | Interfacially polymerized, bipiperidine-polyamide membranes for reverse osmosis and/or nanofiltration and process for making the same |
ATE433342T1 (de) * | 1999-09-28 | 2009-06-15 | Toray Industries | Verfahren zur herstellung einer semipermeablen verbundmembran |
US6881209B2 (en) * | 2000-05-25 | 2005-04-19 | Cook Incorporated | Medical device including unitary, continuous portion of varying durometer |
US6921880B2 (en) * | 2003-04-04 | 2005-07-26 | Constance F. Berger | Apparatus for heating bottles and method of manufacturing same |
US8268937B2 (en) * | 2006-09-09 | 2012-09-18 | Teijin Aramid B.V. | Crosslinkable aramid copolymers |
WO2008100957A1 (fr) * | 2007-02-14 | 2008-08-21 | Dxv Water Technologies, Llc | Membrane exposée en profondeur pour extraction d'eau |
US7910012B2 (en) * | 2007-07-16 | 2011-03-22 | General Electric Company | Composition, membrane, and associated method |
US8177978B2 (en) * | 2008-04-15 | 2012-05-15 | Nanoh20, Inc. | Reverse osmosis membranes |
JP5745512B2 (ja) | 2009-06-29 | 2015-07-08 | ナノエイチツーオー・インコーポレーテッド | 窒素添加剤を含む改良された混成tfcro膜 |
US8685252B2 (en) * | 2010-02-04 | 2014-04-01 | Dxv Water Technologies, Llc | Water treatment systems and methods |
EP2637773B1 (fr) | 2010-11-10 | 2019-10-30 | NanoH2O Inc. | Membranes tfc hybrides pour osmose inverse améliorées contenant des additifs non métalliques |
US20130256215A1 (en) * | 2010-12-28 | 2013-10-03 | Toray Industries, Inc. | Composite semipermeable membrane |
CN102512982B (zh) * | 2012-01-11 | 2013-11-13 | 浙江理工大学 | 一种抗菌耐氧化复合反渗透膜 |
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 |
US10513446B2 (en) | 2014-10-10 | 2019-12-24 | EcoDesal, LLC | Depth exposed membrane for water extraction |
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 |
WO2018049013A1 (fr) * | 2016-09-07 | 2018-03-15 | Oasys Water, Inc. | Membranes à couches sélectives alternatives |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3497451A (en) * | 1967-10-11 | 1970-02-24 | Du Pont | Permeation separation with type-8 nylon membranes |
BE746629A (fr) * | 1970-02-27 | 1970-07-31 | Consiglio Nazionale Ricerche | Procede pour la formation de membranes semi-permeables pour dessalementd'eaux saumatres et marines, par hyperfiltration, et membranes produites par le susdit procede |
US3567632A (en) * | 1968-09-04 | 1971-03-02 | Du Pont | Permselective,aromatic,nitrogen-containing polymeric membranes |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3140256A (en) * | 1957-09-30 | 1964-07-07 | Standard Oil Co | Separation process |
US3276996A (en) * | 1963-07-15 | 1966-10-04 | Lazare Leon | Separating water from saline solutions |
US3423491A (en) * | 1964-09-02 | 1969-01-21 | Dow Chemical Co | Permselective hollow fibers and method of making |
US3524546A (en) * | 1967-10-11 | 1970-08-18 | Du Pont | Permeation separation with acidgrafted nylon membranes |
US3531525A (en) * | 1968-03-18 | 1970-09-29 | Lubrizol Corp | Preparation of n-3-hydroxyalkyl acrylamides by hydrolysis of vinyl oxazines |
US3554379A (en) * | 1969-06-10 | 1971-01-12 | Du Pont | Desalination apparatus and process of manufacture using improved, nitrogenous membranes |
-
1971
- 1971-10-19 US US191818A patent/US3904519A/en not_active Expired - Lifetime
-
1972
- 1972-09-18 CA CA151,944A patent/CA966067A/en not_active Expired
- 1972-09-18 GB GB4313172A patent/GB1390418A/en not_active Expired
- 1972-09-28 IL IL40449A patent/IL40449A/en unknown
- 1972-10-10 AU AU47569/72A patent/AU473950B2/en not_active Expired
- 1972-10-19 FR FR7237121A patent/FR2156839B1/fr not_active Expired
- 1972-10-19 DE DE2251348A patent/DE2251348A1/de not_active Withdrawn
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3497451A (en) * | 1967-10-11 | 1970-02-24 | Du Pont | Permeation separation with type-8 nylon membranes |
US3567632A (en) * | 1968-09-04 | 1971-03-02 | Du Pont | Permselective,aromatic,nitrogen-containing polymeric membranes |
BE746629A (fr) * | 1970-02-27 | 1970-07-31 | Consiglio Nazionale Ricerche | Procede pour la formation de membranes semi-permeables pour dessalementd'eaux saumatres et marines, par hyperfiltration, et membranes produites par le susdit procede |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2297223A1 (fr) * | 1975-01-08 | 1976-08-06 | Toray Industries | Procede de preparation de membranes polymeres organiques a permeabilite selective, en polyamide ou en polyhydrazide, et nouveaux produits ainsi obtenus |
FR2333548A1 (fr) * | 1975-12-06 | 1977-07-01 | Bayer Ag | Nouvelles membranes semi-permeables en copolyamides, et leur utilisation pour l'osmose inverse |
FR2368290A1 (fr) * | 1976-10-21 | 1978-05-19 | Du Pont | Procede perfectionne de fabrication de membranes a permeabilite selective |
Also Published As
Publication number | Publication date |
---|---|
GB1390418A (en) | 1975-04-09 |
AU473950B2 (en) | 1974-04-26 |
CA966067A (en) | 1975-04-15 |
FR2156839B1 (fr) | 1979-04-13 |
US3904519A (en) | 1975-09-09 |
IL40449A (en) | 1976-01-30 |
DE2251348A1 (de) | 1973-04-26 |
AU4756972A (en) | 1974-04-26 |
IL40449A0 (en) | 1972-11-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |