GB9918111D0 - Composite polyamide reverse osmosis membrane and method of producing the same - Google Patents

Composite polyamide reverse osmosis membrane and method of producing the same

Info

Publication number
GB9918111D0
GB9918111D0 GBGB9918111.7A GB9918111A GB9918111D0 GB 9918111 D0 GB9918111 D0 GB 9918111D0 GB 9918111 A GB9918111 A GB 9918111A GB 9918111 D0 GB9918111 D0 GB 9918111D0
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.)
Granted
Application number
GBGB9918111.7A
Other versions
GB2352722A (en
GB2352722B (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toray Chemical Korea Inc
Original Assignee
Saehan Industries 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.)
Filing date
Publication date
Priority to DE19934737A priority Critical patent/DE19934737C2/en
Application filed by Saehan Industries Inc filed Critical Saehan Industries Inc
Priority to GB9918111A priority patent/GB2352722B/en
Publication of GB9918111D0 publication Critical patent/GB9918111D0/en
Publication of GB2352722A publication Critical patent/GB2352722A/en
Application granted granted Critical
Publication of GB2352722B publication Critical patent/GB2352722B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • 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
GB9918111A 1999-07-23 1999-08-03 Composite polyamide reverse osmosis membrane and method of producing the same Expired - Lifetime GB2352722B (en)

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 true GB9918111D0 (en) 1999-10-06
GB2352722A GB2352722A (en) 2001-02-07
GB2352722B 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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1230971B1 (en) * 2001-02-12 2005-05-11 Saehan Industries, Inc. Composite polyamide reverse osmosis membrane and method for producing the same
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

Family Cites Families (11)

* Cited by examiner, † Cited by third party
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
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
US4983291A (en) * 1989-12-14 1991-01-08 Allied-Signal Inc. Dry high flux semipermeable membranes
JP3031763B2 (en) * 1990-09-14 2000-04-10 日東電工株式会社 Composite reverse osmosis membrane and method for producing the same
JP3045349B2 (en) * 1991-11-26 2000-05-29 株式会社大一商会 Pachinko machine
JP3006976B2 (en) * 1993-06-24 2000-02-07 日東電工株式会社 Method for producing highly 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
DE19934737A1 (en) 2001-03-01
GB2352722B (en) 2004-01-07
DE19934737C2 (en) 2001-11-29

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20190802