JPS55112309A - Production of hollow fiber - Google Patents

Production of hollow fiber

Info

Publication number
JPS55112309A
JPS55112309A JP1807179A JP1807179A JPS55112309A JP S55112309 A JPS55112309 A JP S55112309A JP 1807179 A JP1807179 A JP 1807179A JP 1807179 A JP1807179 A JP 1807179A JP S55112309 A JPS55112309 A JP S55112309A
Authority
JP
Japan
Prior art keywords
solution
hollow fiber
cellulose ester
acetone
cyclic ether
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
JP1807179A
Other languages
Japanese (ja)
Inventor
Yasushi Jo
Akihiko Niina
Noriaki Kaneko
Noriyuki Ichige
Toshio Nagase
Koji Ichikawa
Hisako Sonobe
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.)
Zeon Corp
Original Assignee
Nippon Zeon 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 Nippon Zeon Co Ltd filed Critical Nippon Zeon Co Ltd
Priority to JP1807179A priority Critical patent/JPS55112309A/en
Publication of JPS55112309A publication Critical patent/JPS55112309A/en
Pending legal-status Critical Current

Links

Landscapes

  • Separation Using Semi-Permeable Membranes (AREA)
  • Artificial Filaments (AREA)

Abstract

PURPOSE: To produce a uniform hollow fiber for hemodialysis free from huge voids, by extruding a solution of a cellulose ester in acetone/a cyclic ether mixture through an annular orifice, and by introducing a specific core liquid into the hollow part.
CONSTITUTION: A cellulose ester, e.g. cellulose acetate, is dissolved in a mixture of acetone and a cyclic ether, breferably 1,4-dioxane or tetrahydrofuran, to form a 15W28wt% solution. The solution is then extruded through an annular orifice into a filamentary material, and at least one of (A) a cellulose ester solution and/or swelling agent, (B) an aqeous solution of a salt to separate or salt out the solvent and water into different phases, or (C) a monoterpene is introduced into the hollow part to give the desired hollow fiber.
USE: Selective permeation membranes, e.g. ultrafiltration, reverse osmosis, and gas separation.
COPYRIGHT: (C)1980,JPO&Japio
JP1807179A 1979-02-19 1979-02-19 Production of hollow fiber Pending JPS55112309A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1807179A JPS55112309A (en) 1979-02-19 1979-02-19 Production of hollow fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1807179A JPS55112309A (en) 1979-02-19 1979-02-19 Production of hollow fiber

Publications (1)

Publication Number Publication Date
JPS55112309A true JPS55112309A (en) 1980-08-29

Family

ID=11961425

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1807179A Pending JPS55112309A (en) 1979-02-19 1979-02-19 Production of hollow fiber

Country Status (1)

Country Link
JP (1) JPS55112309A (en)

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