GB2037222B - Process for producing semipermeable membranes - Google Patents

Process for producing semipermeable membranes

Info

Publication number
GB2037222B
GB2037222B GB7943367A GB7943367A GB2037222B GB 2037222 B GB2037222 B GB 2037222B GB 7943367 A GB7943367 A GB 7943367A GB 7943367 A GB7943367 A GB 7943367A GB 2037222 B GB2037222 B GB 2037222B
Authority
GB
United Kingdom
Prior art keywords
semipermeable membranes
producing semipermeable
producing
membranes
semipermeable
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
GB7943367A
Other versions
GB2037222A (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.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo Chemical Co Ltd
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 Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Publication of GB2037222A publication Critical patent/GB2037222A/en
Application granted granted Critical
Publication of GB2037222B publication Critical patent/GB2037222B/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
    • B01D71/40—Polymers of unsaturated acids or derivatives thereof, e.g. salts, amides, imides, nitriles, anhydrides, esters
    • B01D71/42—Polymers of nitriles, e.g. polyacrylonitrile
    • B01D71/421—Polyacrylonitrile
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0081—After-treatment of organic or inorganic membranes
    • B01D67/009—After-treatment of organic or inorganic membranes with wave-energy, particle-radiation or plasma
    • 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
    • B01D71/40—Polymers of unsaturated acids or derivatives thereof, e.g. salts, amides, imides, nitriles, anhydrides, esters
    • B01D71/42—Polymers of nitriles, e.g. polyacrylonitrile

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Inorganic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
GB7943367A 1978-12-15 1979-12-17 Process for producing semipermeable membranes Expired GB2037222B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15591978A JPS5581706A (en) 1978-12-15 1978-12-15 Preparation of semi-permeable membrane

Publications (2)

Publication Number Publication Date
GB2037222A GB2037222A (en) 1980-07-09
GB2037222B true GB2037222B (en) 1983-01-19

Family

ID=15616371

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7943367A Expired GB2037222B (en) 1978-12-15 1979-12-17 Process for producing semipermeable membranes

Country Status (7)

Country Link
JP (1) JPS5581706A (en)
DE (1) DE2950236A1 (en)
DK (1) DK154750C (en)
FR (1) FR2443866B1 (en)
GB (1) GB2037222B (en)
IT (1) IT1164914B (en)
NL (1) NL7908970A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BG33312A1 (en) * 1981-04-20 1983-01-14 Dimov Method for obtaining of semi- transparent membrane
DE3509068A1 (en) * 1985-03-14 1986-09-18 Bayer Ag, 5090 Leverkusen Pore membranes
JP3171947B2 (en) * 1991-09-03 2001-06-04 ダイセル化学工業株式会社 Polyacrylonitrile copolymer selectively permeable membrane and method for producing the same
DE19811997C1 (en) * 1998-03-19 1999-07-15 Geesthacht Gkss Forschung Solvent- and acid-stable copolyacrylonitrile membrane suitable for autoclave sterilization
KR100454153B1 (en) * 2001-11-24 2004-10-26 태광산업주식회사 A hollow fiber membrane made of polyacrylonitrile and a preparation method thereof

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4025439A (en) * 1973-12-12 1977-05-24 Mitsubishi Rayon Co., Ltd. Dried semipermeable membrane and manufacture thereof
JPS5090579A (en) * 1973-12-12 1975-07-19
JPS568645B2 (en) * 1974-09-05 1981-02-25
JPS5226380A (en) * 1975-08-25 1977-02-26 Sumitomo Chem Co Ltd Method of making semipermeable membranes
US4061821A (en) * 1975-12-29 1977-12-06 Asahi Kasei Kogyo Kabushiki Kaisha Semipermeable composite membranes
US4268662A (en) * 1978-03-17 1981-05-19 Sumitomo Chemical Company, Limited Process for improving semipermeable membranes by treating with protic acids or inorganic salts

Also Published As

Publication number Publication date
DE2950236C2 (en) 1988-03-10
NL7908970A (en) 1980-06-17
DE2950236A1 (en) 1980-06-26
FR2443866A1 (en) 1980-07-11
DK154750C (en) 1989-05-08
GB2037222A (en) 1980-07-09
DK154750B (en) 1988-12-19
FR2443866B1 (en) 1986-02-14
IT1164914B (en) 1987-04-15
JPS5581706A (en) 1980-06-20
DK534679A (en) 1980-06-16
IT7951083A0 (en) 1979-12-13

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee