JPS55148211A - Production of asymmetric hollow ethylene-vinyl alcohol membrane - Google Patents

Production of asymmetric hollow ethylene-vinyl alcohol membrane

Info

Publication number
JPS55148211A
JPS55148211A JP5373079A JP5373079A JPS55148211A JP S55148211 A JPS55148211 A JP S55148211A JP 5373079 A JP5373079 A JP 5373079A JP 5373079 A JP5373079 A JP 5373079A JP S55148211 A JPS55148211 A JP S55148211A
Authority
JP
Japan
Prior art keywords
spinneret
solvent
fiber
vinyl alcohol
solution
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
JP5373079A
Other languages
Japanese (ja)
Other versions
JPS6227163B2 (en
Inventor
Shuzo Yamashita
Shuji Kawai
Hirokuni Tanii
Koichi Takakura
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.)
Kuraray Co Ltd
Original Assignee
Kuraray 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 Kuraray Co Ltd filed Critical Kuraray Co Ltd
Priority to JP5373079A priority Critical patent/JPS55148211A/en
Priority to DE19792935097 priority patent/DE2935097A1/en
Priority to US06/071,671 priority patent/US4269713A/en
Priority to FR7922340A priority patent/FR2435276A1/en
Priority to GB7931000A priority patent/GB2031792B/en
Publication of JPS55148211A publication Critical patent/JPS55148211A/en
Publication of JPS6227163B2 publication Critical patent/JPS6227163B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To obtain the title membrane usable as filtration membranes for filtration type artificial kidneys, having a small diameter and thickness, by extruding a solution of the polymer in a solvent, e.g. DNSO, through a spinneret, and by coagulating the fiber drawn in a gas at a specific ratio in a coagulation bath at a specified temperature.
CONSTITUTION: Ethylene-vinyl alcohol copolymer is dissolved in a solvent (S), e.g. dimethyl sulfoxide, dimethylacetamide, pyrrolidone, or N-methylpyrrolidone, to form a spinning solution, which is extruded through a spinneret into a fiber while introducing a coagulating liquid (L) from the center of the spinneret. The fiber is then passed through the atmosphere of a gas at a draft ratio of 0.5W20:1, and coagulated in a coagulation bath at a temperature range expressed by the formula [C is the polymer concentration (wt%); T is the coagulation temperature (°C)]. The liquid (L) is preferably a solution of the solvent in S, with a moisture content of 20W100wt%.
COPYRIGHT: (C)1980,JPO&Japio
JP5373079A 1978-09-07 1979-04-30 Production of asymmetric hollow ethylene-vinyl alcohol membrane Granted JPS55148211A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP5373079A JPS55148211A (en) 1979-04-30 1979-04-30 Production of asymmetric hollow ethylene-vinyl alcohol membrane
DE19792935097 DE2935097A1 (en) 1978-09-07 1979-08-30 AETHYLENE / VINYL ALCOHOL COPOLYMER MEMBRANE
US06/071,671 US4269713A (en) 1978-09-07 1979-08-31 Ethylene-vinyl alcohol copolymer membrane and a method for producing the same
FR7922340A FR2435276A1 (en) 1978-09-07 1979-09-06 COPOLYMER MEMBRANES OF ETHYLENE AND VINYL ALCOHOL AND PROCESS FOR THEIR PREPARATION
GB7931000A GB2031792B (en) 1978-09-07 1979-09-06 Ethylene-vinyl alcohol copolymer membranes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5373079A JPS55148211A (en) 1979-04-30 1979-04-30 Production of asymmetric hollow ethylene-vinyl alcohol membrane

Publications (2)

Publication Number Publication Date
JPS55148211A true JPS55148211A (en) 1980-11-18
JPS6227163B2 JPS6227163B2 (en) 1987-06-12

Family

ID=12950937

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5373079A Granted JPS55148211A (en) 1978-09-07 1979-04-30 Production of asymmetric hollow ethylene-vinyl alcohol membrane

Country Status (1)

Country Link
JP (1) JPS55148211A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63175116A (en) * 1987-01-08 1988-07-19 Mitsubishi Kasei Corp Copolyamide-imide hollow yarn and production thereof
JP2002143654A (en) * 2000-11-08 2002-05-21 Kuraray Co Ltd Hollow fiber membrane and its manufacturing method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53126319A (en) * 1977-04-06 1978-11-04 Kuraray Co Ltd Production of dried hollow fiber with selective permeability
JPS55122010A (en) * 1979-03-12 1980-09-19 Kuraray Co Ltd Preparation of hollow ethylene-vinyl alcohol compolymer membrane

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53126319A (en) * 1977-04-06 1978-11-04 Kuraray Co Ltd Production of dried hollow fiber with selective permeability
JPS55122010A (en) * 1979-03-12 1980-09-19 Kuraray Co Ltd Preparation of hollow ethylene-vinyl alcohol compolymer membrane

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63175116A (en) * 1987-01-08 1988-07-19 Mitsubishi Kasei Corp Copolyamide-imide hollow yarn and production thereof
JP2002143654A (en) * 2000-11-08 2002-05-21 Kuraray Co Ltd Hollow fiber membrane and its manufacturing method

Also Published As

Publication number Publication date
JPS6227163B2 (en) 1987-06-12

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