IL34861A - Polyamide films,membranes and other formed articles for use in reverse osmosis - Google Patents
Polyamide films,membranes and other formed articles for use in reverse osmosisInfo
- Publication number
- IL34861A IL34861A IL34861A IL3486170A IL34861A IL 34861 A IL34861 A IL 34861A IL 34861 A IL34861 A IL 34861A IL 3486170 A IL3486170 A IL 3486170A IL 34861 A IL34861 A IL 34861A
- Authority
- IL
- Israel
- Prior art keywords
- membranes
- reverse osmosis
- formed articles
- polyamide films
- polyamide
- Prior art date
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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT1931869 | 1969-07-08 |
Publications (2)
Publication Number | Publication Date |
---|---|
IL34861A0 IL34861A0 (en) | 1970-09-17 |
IL34861A true IL34861A (en) | 1973-04-30 |
Family
ID=11156682
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IL34861A IL34861A (en) | 1969-07-08 | 1970-07-07 | Polyamide films,membranes and other formed articles for use in reverse osmosis |
Country Status (11)
Country | Link |
---|---|
US (2) | US3696031A (xx) |
JP (1) | JPS4822899B1 (xx) |
BE (1) | BE753089A (xx) |
CA (1) | CA948117A (xx) |
DE (1) | DE2033526C3 (xx) |
ES (1) | ES381521A1 (xx) |
FR (1) | FR2054257A5 (xx) |
GB (1) | GB1276594A (xx) |
IL (1) | IL34861A (xx) |
NL (1) | NL171019C (xx) |
ZA (1) | ZA704672B (xx) |
Families Citing this family (30)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE793504A (fr) * | 1971-12-30 | 1973-06-29 | Montedison Spa | Membranes anisotropes de retro-osmose et leur procede de preparation |
US3817386A (en) * | 1972-05-03 | 1974-06-18 | Westinghouse Electric Corp | Reverse osmosis membranes from pyrrone polymer precursors |
US3853754A (en) * | 1972-07-20 | 1974-12-10 | Du Pont | Membrane separation of homogeneous catalysts from nitrile solutions |
US3886066A (en) * | 1972-11-06 | 1975-05-27 | Du Pont | Tannin treatment for non-porous semipermeable membranes |
ZA74296B (en) * | 1973-01-16 | 1974-11-27 | Montedison Spa | Reverse osmosis anisotropic membranes with great water flow and strong saline rejection,based on polypiperazine amides,and process for preparing such membranes |
US4129559A (en) * | 1973-01-16 | 1978-12-12 | Montedison S.P.A. | Reverse osmosis anisotropic membranes based on polypiperazine amides |
GB1484860A (en) * | 1973-11-22 | 1977-09-08 | United States Borax Chem | Manufacture of boric acid |
DE2554922A1 (de) * | 1975-12-06 | 1977-06-16 | Bayer Ag | Semipermeable membranen aus copolyamiden |
ES462585A1 (es) * | 1976-09-24 | 1978-07-16 | Bauer Ag | Procedimiento para la obtencion de membranas semipermeables. |
JPS5417196Y2 (xx) * | 1976-10-21 | 1979-07-03 | ||
US4259183A (en) * | 1978-11-07 | 1981-03-31 | Midwest Research Institute | Reverse osmosis membrane |
DE2855529A1 (de) * | 1978-12-22 | 1980-06-26 | Babcock Brown Boveri Reaktor | Verfahren und einrichtung zum deborieren von primaerkuehlmittel einer wassergekuehlten kernreaktoranlage |
US4277344A (en) * | 1979-02-22 | 1981-07-07 | Filmtec Corporation | Interfacially synthesized reverse osmosis membrane |
US4337154A (en) * | 1979-04-04 | 1982-06-29 | Nippon Shokubai Kagaku Kogyo Co., Ltd. | Crosslinked composite semipermeable membrane |
US4387024A (en) * | 1979-12-13 | 1983-06-07 | Toray Industries, Inc. | High performance semipermeable composite membrane and process for producing the same |
DE3028213C2 (de) * | 1980-07-25 | 1990-12-06 | Akzo Gmbh, 5600 Wuppertal | Verfahren zur Herstellung einer Ultrafiltrationsmembran aus Polyamid und daraus hergestellte Membran |
US4663050A (en) * | 1982-01-18 | 1987-05-05 | Standard Oil Company | Semipermeable membranes prepared from polymers containing adjacent, pendent carboxy groups |
US4659475A (en) * | 1984-03-19 | 1987-04-21 | Midwest Research Institute | Composite reverse osmosis membrane comprising crosslinked poly(amine-epihalohydrin adduct) |
IT1222627B (it) * | 1987-09-09 | 1990-09-05 | Separem Spa | Procedimento per la preparazione di membrane per osmosi inversa e membrane ottenute con tale procedimento |
US4769148A (en) * | 1987-11-18 | 1988-09-06 | The Dow Chemical Company | Novel polyamide reverse osmosis membranes |
US4859384A (en) * | 1987-11-18 | 1989-08-22 | Filmtec Corp. | Novel polyamide reverse osmosis membranes |
WO1990008807A1 (en) * | 1989-01-31 | 1990-08-09 | E.I. Du Pont De Nemours And Company | Porous substrates with a high concentration of amine groups |
US7156997B2 (en) * | 2001-10-05 | 2007-01-02 | Dow Global Technologies Inc. | Package assembly for piperazine-based membranes |
US8177978B2 (en) * | 2008-04-15 | 2012-05-15 | Nanoh20, Inc. | Reverse osmosis membranes |
AU2010273709B2 (en) | 2009-06-29 | 2015-08-20 | Nanoh2O, Inc. | Improved hybrid TFC RO membranes with nitrogen additives |
EP2637773B1 (en) | 2010-11-10 | 2019-10-30 | NanoH2O Inc. | Improved hybrid tfc ro membranes with non-metallic additives |
US9370747B2 (en) | 2011-09-01 | 2016-06-21 | New Mexico Tech Research Foundation | Method and apparatus for reducing the total dissolved solids of a solution |
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 |
-
1970
- 1970-07-06 US US52748A patent/US3696031A/en not_active Expired - Lifetime
- 1970-07-06 NL NLAANVRAGE7009956,A patent/NL171019C/xx not_active IP Right Cessation
- 1970-07-07 DE DE2033526A patent/DE2033526C3/de not_active Expired
- 1970-07-07 JP JP45058793A patent/JPS4822899B1/ja active Pending
- 1970-07-07 FR FR7025125A patent/FR2054257A5/fr not_active Expired
- 1970-07-07 IL IL34861A patent/IL34861A/xx unknown
- 1970-07-07 ES ES381521A patent/ES381521A1/es not_active Expired
- 1970-07-07 CA CA087,571A patent/CA948117A/en not_active Expired
- 1970-07-07 ZA ZA704672A patent/ZA704672B/xx unknown
- 1970-07-07 BE BE753089D patent/BE753089A/xx unknown
- 1970-07-08 GB GB33043/70A patent/GB1276594A/en not_active Expired
-
1972
- 1972-06-26 US US00266461A patent/US3743597A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
FR2054257A5 (xx) | 1971-04-16 |
DE2033526B2 (de) | 1980-04-17 |
NL171019C (nl) | 1983-02-01 |
BE753089A (fr) | 1971-01-07 |
GB1276594A (en) | 1972-06-01 |
DE2033526A1 (de) | 1971-01-28 |
ES381521A1 (es) | 1973-04-16 |
IL34861A0 (en) | 1970-09-17 |
US3743597A (en) | 1973-07-03 |
JPS4822899B1 (xx) | 1973-07-10 |
DE2033526C3 (de) | 1980-12-11 |
ZA704672B (en) | 1971-03-31 |
CA948117A (en) | 1974-05-28 |
US3696031A (en) | 1972-10-03 |
NL7009956A (xx) | 1971-01-12 |
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