GB2352722B - Composite polyamide reverse osmosis membrane and method of producing the same - Google Patents
Composite polyamide reverse osmosis membrane and method of producing the sameInfo
- Publication number
- GB2352722B GB2352722B GB9918111A GB9918111A GB2352722B GB 2352722 B GB2352722 B GB 2352722B GB 9918111 A GB9918111 A GB 9918111A GB 9918111 A GB9918111 A GB 9918111A GB 2352722 B GB2352722 B GB 2352722B
- Authority
- GB
- United Kingdom
- Prior art keywords
- producing
- same
- reverse osmosis
- osmosis membrane
- polyamide reverse
- Prior art date
- 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.)
- Expired - Lifetime
Links
- 239000004952 Polyamide Substances 0.000 title 1
- 239000002131 composite material Substances 0.000 title 1
- 239000012528 membrane Substances 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 229920002647 polyamide Polymers 0.000 title 1
- 238000001223 reverse osmosis Methods 0.000 title 1
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
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19934737A DE19934737C2 (en) | 1999-07-23 | 1999-07-23 | Polyamide reverse osmosis membrane |
GB9918111A GB2352722B (en) | 1999-07-23 | 1999-08-03 | Composite polyamide reverse osmosis membrane and method of producing the same |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19934737A DE19934737C2 (en) | 1999-07-23 | 1999-07-23 | Polyamide reverse osmosis membrane |
GB9918111A GB2352722B (en) | 1999-07-23 | 1999-08-03 | Composite polyamide reverse osmosis membrane and method of producing the same |
Publications (3)
Publication Number | Publication Date |
---|---|
GB9918111D0 GB9918111D0 (en) | 1999-10-06 |
GB2352722A GB2352722A (en) | 2001-02-07 |
GB2352722B true GB2352722B (en) | 2004-01-07 |
Family
ID=26054324
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB9918111A Expired - Lifetime GB2352722B (en) | 1999-07-23 | 1999-08-03 | Composite polyamide reverse osmosis membrane and method of producing the same |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE19934737C2 (en) |
GB (1) | GB2352722B (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE60110738T2 (en) * | 2001-02-12 | 2006-04-27 | Saehan Industries Inc. | Novel composite reverse osmosis membrane and process for its preparation |
JP2003080042A (en) * | 2001-09-10 | 2003-03-18 | Nitto Denko Corp | Composite semipermeable membrane and method for manufacturing the same |
US7479300B2 (en) * | 2005-03-30 | 2009-01-20 | Woongjin Chemical Co., Ltd. | Composite polyamide reverse osmosis membrane and method of producing the same |
WO2010082710A1 (en) * | 2009-01-14 | 2010-07-22 | University-Industry Cooperation Group Of Kyung Hee University | Method for preparing a highly durable reverse osmosis membrane |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4872984A (en) * | 1988-09-28 | 1989-10-10 | Hydranautics Corporation | Interfacially synthesized reverse osmosis membrane containing an amine salt and processes for preparing the same |
US4948507A (en) * | 1988-09-28 | 1990-08-14 | Hydranautics Corporation | Interfacially synthesized reverse osmosis membrane containing an amine salt and processes for preparing the same |
US5160619A (en) * | 1990-09-14 | 1992-11-03 | Nitto Denko Corporation | Composite reverse osmosis membrane and production thereof |
JPH05146554A (en) * | 1991-11-26 | 1993-06-15 | Daiichi Shokai Co Ltd | Pachinko game machine |
US5576057A (en) * | 1993-06-24 | 1996-11-19 | Nitto Denko Corporation | Method of producing high permeable composite reverse osmosis membrane |
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 |
US5658460A (en) * | 1996-05-07 | 1997-08-19 | The Dow Chemical Company | Use of inorganic ammonium cation salts to maintain the flux and salt rejection characteristics of reverse osmosis and nanofiltration membranes during drying |
US6063278A (en) * | 1998-04-28 | 2000-05-16 | Saehan Industries Inc. | Composite polyamide reverse osmosis membrane and method of producing the same |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5328133B2 (en) * | 1974-05-17 | 1978-08-12 | ||
US4277344A (en) * | 1979-02-22 | 1981-07-07 | Filmtec Corporation | Interfacially synthesized reverse osmosis membrane |
US4983291A (en) * | 1989-12-14 | 1991-01-08 | Allied-Signal Inc. | Dry high flux semipermeable membranes |
-
1999
- 1999-07-23 DE DE19934737A patent/DE19934737C2/en not_active Expired - Lifetime
- 1999-08-03 GB GB9918111A patent/GB2352722B/en not_active Expired - Lifetime
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4872984A (en) * | 1988-09-28 | 1989-10-10 | Hydranautics Corporation | Interfacially synthesized reverse osmosis membrane containing an amine salt and processes for preparing the same |
US4948507A (en) * | 1988-09-28 | 1990-08-14 | Hydranautics Corporation | Interfacially synthesized reverse osmosis membrane containing an amine salt and processes for preparing the same |
US5160619A (en) * | 1990-09-14 | 1992-11-03 | Nitto Denko Corporation | Composite reverse osmosis membrane and production thereof |
JPH05146554A (en) * | 1991-11-26 | 1993-06-15 | Daiichi Shokai Co Ltd | Pachinko game machine |
US5576057A (en) * | 1993-06-24 | 1996-11-19 | Nitto Denko Corporation | Method of producing high permeable composite reverse osmosis membrane |
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 |
US5658460A (en) * | 1996-05-07 | 1997-08-19 | The Dow Chemical Company | Use of inorganic ammonium cation salts to maintain the flux and salt rejection characteristics of reverse osmosis and nanofiltration membranes during drying |
US6063278A (en) * | 1998-04-28 | 2000-05-16 | Saehan Industries Inc. | Composite polyamide reverse osmosis membrane and method of producing the same |
Also Published As
Publication number | Publication date |
---|---|
GB2352722A (en) | 2001-02-07 |
DE19934737C2 (en) | 2001-11-29 |
DE19934737A1 (en) | 2001-03-01 |
GB9918111D0 (en) | 1999-10-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PE20 | Patent expired after termination of 20 years |
Expiry date: 20190802 |