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JPS55122010A - Preparation of hollow ethylene-vinyl alcohol compolymer membrane - Google Patents

Preparation of hollow ethylene-vinyl alcohol compolymer membrane

Info

Publication number
JPS55122010A
JPS55122010A JP2902079A JP2902079A JPS55122010A JP S55122010 A JPS55122010 A JP S55122010A JP 2902079 A JP2902079 A JP 2902079A JP 2902079 A JP2902079 A JP 2902079A JP S55122010 A JPS55122010 A JP S55122010A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
fiber
hollow
drafted
spinning
spinneret
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.)
Pending
Application number
JP2902079A
Inventor
Shuji Kawai
Akira Kubotsu
Taku Tanaka
Hirokuni Tanii
Shuzo Yamashita
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

Links

Abstract

PURPOSE: To obtain the title hollow fiber useful for homodialysis, having improved permeability of water and middle molecular weight substances, by extruding a spinning solution from a hollow fiber spinneret with a coagulating liquid into the atmosphere of a gas, and by coaqulating the drafted fiber at a specific ratio in a bath.
CONSTITUTION: A spinning solution of ethylene-vinyl alcohol copolymer in a solvent, e.g. dimethyl sulfoxide (DMSO), is extruded from a hollow fiber spinneret into the atmosphere of a gas while introducing a coagulating liquid, e.g. a mixture of DMSO with water, or a non-coaqulating liquid, e.g. n-hexane, from the center of the spinneret, and drafted at a ratio of 1:1.5W30, preferably 1:2W15. The drafted fiber is then coagulated in a bath, e.g. a DMSO-water solution, to give the objective hollow fiber by the dry jet-wet spinning method.
COPYRIGHT: (C)1980,JPO&Japio
JP2902079A 1979-03-12 1979-03-12 Preparation of hollow ethylene-vinyl alcohol compolymer membrane Pending JPS55122010A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2902079A JPS55122010A (en) 1979-03-12 1979-03-12 Preparation of hollow ethylene-vinyl alcohol compolymer membrane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2902079A JPS55122010A (en) 1979-03-12 1979-03-12 Preparation of hollow ethylene-vinyl alcohol compolymer membrane

Publications (1)

Publication Number Publication Date
JPS55122010A true true JPS55122010A (en) 1980-09-19

Family

ID=12264722

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2902079A Pending JPS55122010A (en) 1979-03-12 1979-03-12 Preparation of hollow ethylene-vinyl alcohol compolymer membrane

Country Status (1)

Country Link
JP (1) JPS55122010A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55148209A (en) * 1979-04-27 1980-11-18 Kuraray Co Ltd Hollow ethylene-vinyl alcohol membrane and its production
JPS55148211A (en) * 1979-04-30 1980-11-18 Kuraray Co Ltd Production of asymmetric hollow ethylene-vinyl alcohol membrane
JPS55148210A (en) * 1979-04-30 1980-11-18 Kuraray Co Ltd Preparation of hollow ethylene-vinyl alcohol membrane
WO2000043115A1 (en) * 1999-01-21 2000-07-27 Ebara Corporation Ethylene-vinyl alcohol hollow fiber membranes

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55148209A (en) * 1979-04-27 1980-11-18 Kuraray Co Ltd Hollow ethylene-vinyl alcohol membrane and its production
JPS6214642B2 (en) * 1979-04-27 1987-04-03 Kuraray Co
JPS55148211A (en) * 1979-04-30 1980-11-18 Kuraray Co Ltd Production of asymmetric hollow ethylene-vinyl alcohol membrane
JPS55148210A (en) * 1979-04-30 1980-11-18 Kuraray Co Ltd Preparation of hollow ethylene-vinyl alcohol membrane
JPS6227163B2 (en) * 1979-04-30 1987-06-12 Kuraray Co
JPS6227162B2 (en) * 1979-04-30 1987-06-12 Kuraray Co
WO2000043115A1 (en) * 1999-01-21 2000-07-27 Ebara Corporation Ethylene-vinyl alcohol hollow fiber membranes

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