JPS54132480A - Production of acrylonitrile type separating membrane - Google Patents
Production of acrylonitrile type separating membraneInfo
- Publication number
- JPS54132480A JPS54132480A JP4058278A JP4058278A JPS54132480A JP S54132480 A JPS54132480 A JP S54132480A JP 4058278 A JP4058278 A JP 4058278A JP 4058278 A JP4058278 A JP 4058278A JP S54132480 A JPS54132480 A JP S54132480A
- Authority
- JP
- Japan
- Prior art keywords
- membrane
- contg
- soln
- solvent
- contacted
- 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
Links
Abstract
PURPOSE: To obtain the title membrane with superior mechanical strength, asymmetry of membrane structure and good membrane separability by specifying the temp. and solvent removing conditions of a membrane-forming soln. of an acrylonitrile (AN) type polymer in formamide-contg. dimethylamide.
CONSTITUTION: A membrane-forming 10W35, pref. 20W30% soln. of an AN type polymer is formamide-contg. dimethylamide is held at above the gelling temp. to form a membraneous substance of a desired shape. This substance is treated to remove the solvent as follows: one side of the sol membrane is immediately contacted to an aq. soln. of below 15°C contg. below 20% of a water sol. solvent compatible with the above mixed solvent optionally after being contacted to an inert atmosphere, and the other side is immediately contacted to an aq. soln. or an inert medium of above 0°C contg. below 50% of the above sol. solvent optionally after being contacted to an inert atmosphere. The resulting solidified membrane is drawn.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4058278A JPS54132480A (en) | 1978-04-05 | 1978-04-05 | Production of acrylonitrile type separating membrane |
FR7908258A FR2421656A1 (en) | 1978-04-03 | 1979-04-02 | PROCESS FOR THE PRODUCTION OF ACRYLONITRILIC SEPARATION MEMBRANES |
US06/195,058 US4409162A (en) | 1978-04-03 | 1980-10-07 | Process for producing acrylonitrile separation membranes in fibrous form |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4058278A JPS54132480A (en) | 1978-04-05 | 1978-04-05 | Production of acrylonitrile type separating membrane |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54132480A true JPS54132480A (en) | 1979-10-15 |
JPS5616685B2 JPS5616685B2 (en) | 1981-04-17 |
Family
ID=12584478
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4058278A Granted JPS54132480A (en) | 1978-04-03 | 1978-04-05 | Production of acrylonitrile type separating membrane |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54132480A (en) |
-
1978
- 1978-04-05 JP JP4058278A patent/JPS54132480A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5616685B2 (en) | 1981-04-17 |
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