JPS54132480A - Production of acrylonitrile type separating membrane - Google Patents

Production of acrylonitrile type separating membrane

Info

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
Application number
JP4058278A
Other languages
Japanese (ja)
Other versions
JPS5616685B2 (en
Inventor
Seiji Takao
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.)
Japan Exlan Co Ltd
Original Assignee
Japan Exlan 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 Japan Exlan Co Ltd filed Critical Japan Exlan Co Ltd
Priority to JP4058278A priority Critical patent/JPS54132480A/en
Priority to FR7908258A priority patent/FR2421656A1/en
Publication of JPS54132480A publication Critical patent/JPS54132480A/en
Priority to US06/195,058 priority patent/US4409162A/en
Publication of JPS5616685B2 publication Critical patent/JPS5616685B2/ja
Granted legal-status Critical Current

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
JP4058278A 1978-04-03 1978-04-05 Production of acrylonitrile type separating membrane Granted JPS54132480A (en)

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)

Also Published As

Publication number Publication date
JPS5616685B2 (en) 1981-04-17

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