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GB2139113B - Reverse osmosis membrane and method for the preparation thereof - Google Patents
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GB2139113B - Reverse osmosis membrane and method for the preparation thereof - Google Patents

Reverse osmosis membrane and method for the preparation thereof

Info

Publication number
GB2139113B
GB2139113B GB08404855A GB8404855A GB2139113B GB 2139113 B GB2139113 B GB 2139113B GB 08404855 A GB08404855 A GB 08404855A GB 8404855 A GB8404855 A GB 8404855A GB 2139113 B GB2139113 B GB 2139113B
Authority
GB
United Kingdom
Prior art keywords
preparation
reverse osmosis
osmosis membrane
membrane
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
Application number
GB08404855A
Other versions
GB8404855D0 (en
GB2139113A (en
Inventor
Stanley F Rak
Kenneth Ward
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.)
Culligan International Co
Original Assignee
Culligan International Co
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
Application filed by Culligan International Co filed Critical Culligan International Co
Publication of GB8404855D0 publication Critical patent/GB8404855D0/en
Publication of GB2139113A publication Critical patent/GB2139113A/en
Application granted granted Critical
Publication of GB2139113B publication Critical patent/GB2139113B/en
Expired 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
    • B01D69/1251—In situ manufacturing by polymerisation, polycondensation, cross-linking or chemical reaction by interfacial polymerisation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
GB08404855A 1983-03-18 1984-02-24 Reverse osmosis membrane and method for the preparation thereof Expired GB2139113B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US47672783A 1983-03-18 1983-03-18

Publications (3)

Publication Number Publication Date
GB8404855D0 GB8404855D0 (en) 1984-03-28
GB2139113A GB2139113A (en) 1984-11-07
GB2139113B true GB2139113B (en) 1987-02-18

Family

ID=23893004

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08404855A Expired GB2139113B (en) 1983-03-18 1984-02-24 Reverse osmosis membrane and method for the preparation thereof

Country Status (2)

Country Link
CA (1) CA1220990A (en)
GB (1) GB2139113B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR900701377A (en) * 1988-09-14 1990-12-01 제라드 피이. 루우니 Chlorine-resistant semipermeable membrane and its manufacturing method
CA2062638A1 (en) * 1991-03-12 1992-09-13 Seriya Takahashi Process for producing composite semipermeable membrane
ES2050606B1 (en) * 1992-09-02 1994-12-01 Toray Industries A PROCEDURE FOR THE PRODUCTION OF A SEMIPERMEABLE MEMBRANE.
EP2632577B1 (en) * 2011-01-24 2014-10-01 Dow Global Technologies LLC Method for making a composite polyamide membrane

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54151570A (en) * 1978-05-22 1979-11-28 Teijin Ltd Selectively permeable composite membrane and its manufacture
US4277344A (en) * 1979-02-22 1981-07-07 Filmtec Corporation Interfacially synthesized reverse osmosis membrane

Also Published As

Publication number Publication date
GB8404855D0 (en) 1984-03-28
CA1220990A (en) 1987-04-28
GB2139113A (en) 1984-11-07

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Legal Events

Date Code Title Description
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20020224