JPS5643413A - Production of hollow fiber - Google Patents

Production of hollow fiber

Info

Publication number
JPS5643413A
JPS5643413A JP11758079A JP11758079A JPS5643413A JP S5643413 A JPS5643413 A JP S5643413A JP 11758079 A JP11758079 A JP 11758079A JP 11758079 A JP11758079 A JP 11758079A JP S5643413 A JPS5643413 A JP S5643413A
Authority
JP
Japan
Prior art keywords
solution
filamentary material
hollow fiber
cellulose ester
liquid containing
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
JP11758079A
Other languages
Japanese (ja)
Inventor
Yasushi Jo
Noriyuki Ichige
Hisako Sonobe
Toshio Nagase
Noriaki Kaneko
Akihiko Niina
Koji Ichikawa
Tetsuo Saito
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 JP11758079A priority Critical patent/JPS5643413A/en
Publication of JPS5643413A publication Critical patent/JPS5643413A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To obtain a hollow fiber for an atrificial kidney, by extruding a cellulose ester solution into a filamentary form, extruding a solvent, an aqueous solution of a water-soluble salt or monoterpene or a liquid containing it into the inside of the filamentary material, and introducing the filamentary material into a coagulating solution.
CONSTITUTION: A cellulose ester is dissolved in an organic solvent, e.g. dimethylformamide, and the resultant solution is extruded through an annular slit into a filamentary material. Any one type selected from (A) a solvent for the cellulose ester and/or a swelling agent or a liquid containing at least one of them, (B) an aqueous solution containing a water-soluble salt in an amount sufficient to cause the phase separation from the solution and (C) a monoterpene (or a liquid containing it) is extruded into the inside of the filamentary material simultaneously with the extrusion. The filamentary material is then introduced into a coagulating solution of an alkaline liquid to give the aimed fiber.
EFFECT: The hollow fiber having a membrane thickness ≥10μ, an ultrafiltration ratio ≥5ml/hr.m2.mmHg and a permeability coefficient (K) to vitamin B12≥ 40×10-4cm/min can be obtained.
COPYRIGHT: (C)1981,JPO&Japio
JP11758079A 1979-09-13 1979-09-13 Production of hollow fiber Pending JPS5643413A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11758079A JPS5643413A (en) 1979-09-13 1979-09-13 Production of hollow fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11758079A JPS5643413A (en) 1979-09-13 1979-09-13 Production of hollow fiber

Publications (1)

Publication Number Publication Date
JPS5643413A true JPS5643413A (en) 1981-04-22

Family

ID=14715331

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11758079A Pending JPS5643413A (en) 1979-09-13 1979-09-13 Production of hollow fiber

Country Status (1)

Country Link
JP (1) JPS5643413A (en)

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