JPS5643414A - Production of hollow fiber - Google Patents

Production of hollow fiber

Info

Publication number
JPS5643414A
JPS5643414A JP11758179A JP11758179A JPS5643414A JP S5643414 A JPS5643414 A JP S5643414A JP 11758179 A JP11758179 A JP 11758179A JP 11758179 A JP11758179 A JP 11758179A JP S5643414 A JPS5643414 A JP S5643414A
Authority
JP
Japan
Prior art keywords
solution
component
swelling agent
filamentary material
core liquid
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
JP11758179A
Other languages
Japanese (ja)
Inventor
Noriyuki Ichige
Noriaki Kaneko
Toshio Nagase
Hisako Sonobe
Tetsuo Saito
Koji Ichikawa
Akihiko Niina
Yasushi Jo
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 JP11758179A priority Critical patent/JPS5643414A/en
Publication of JPS5643414A publication Critical patent/JPS5643414A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To obtain the titled fiber useful for a hemodialyzer etc., having improved dialyzing property without voids, by introducing a specific core liquid into the inner hollow part of a filamentary material in extruding a solution of a cellulose ester in an organic solvent of specific concentration containing a swelling agent through an annular slit.
CONSTITUTION: (A) A cellulose ester, e.g. cellulose acetate, is dissolved in (B) an organic solvent, e.g. acetone, and (C) a swelling agent, e.g. formamide, for the component (A) is added to prepare a solution containing 25wt% or more the component (A). The resultant solution is then extruded through an annular slit into a filamentary material. (D) One type selected from (i) a solvent for the component (A) and/or a swelling agent or a liquid containing at least one of them, (ii) an aqueous solution containing a water-soluble salt in an amount sufficient to cause the phase separation from the solution consisting of the components (A), (B) and (C) and (iii) a monoterpene or a solution containing it as a core liquid is introduced into the inner hollow part of the filamentary material as a core liquid to give the aimed hollow fiber.
COPYRIGHT: (C)1981,JPO&Japio
JP11758179A 1979-09-13 1979-09-13 Production of hollow fiber Pending JPS5643414A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11758179A JPS5643414A (en) 1979-09-13 1979-09-13 Production of hollow fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11758179A JPS5643414A (en) 1979-09-13 1979-09-13 Production of hollow fiber

Publications (1)

Publication Number Publication Date
JPS5643414A true JPS5643414A (en) 1981-04-22

Family

ID=14715357

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11758179A Pending JPS5643414A (en) 1979-09-13 1979-09-13 Production of hollow fiber

Country Status (1)

Country Link
JP (1) JPS5643414A (en)

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