JPS5477715A - Production of polycarbonate hollow fiber - Google Patents

Production of polycarbonate hollow fiber

Info

Publication number
JPS5477715A
JPS5477715A JP14259577A JP14259577A JPS5477715A JP S5477715 A JPS5477715 A JP S5477715A JP 14259577 A JP14259577 A JP 14259577A JP 14259577 A JP14259577 A JP 14259577A JP S5477715 A JPS5477715 A JP S5477715A
Authority
JP
Japan
Prior art keywords
coagulation
hollow fibers
fibers
polyether
solvent
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
JP14259577A
Other languages
Japanese (ja)
Other versions
JPS572809B2 (en
Inventor
Fusakazu Hayano
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.)
Asahi Chemical Industry Co Ltd
Original Assignee
Asahi Chemical Industry 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 Asahi Chemical Industry Co Ltd filed Critical Asahi Chemical Industry Co Ltd
Priority to JP14259577A priority Critical patent/JPS5477715A/en
Publication of JPS5477715A publication Critical patent/JPS5477715A/en
Publication of JPS572809B2 publication Critical patent/JPS572809B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Separation Using Semi-Permeable Membranes (AREA)
  • Artificial Filaments (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Abstract

PURPOSE: Outer and inner surfaces of hollow fibers made of a polyether-polycarbonate block copolymer are treated with specific coagulation solutions to impart properties of dialyzing substances of medium-size molecular weight and an adequate extent of ultrafiltration.
CONSTITUTION: A polyether-polycarbonate block copolymer containing 10W35 wt% of polyether component is dissolved in a mixture consisting of a solvent as 1,3-dioxorane and a swelling agent as dimethyl sulforide to form a solution preferably of 5W35 wt% concentration. The solution is extruded from ring orifices to form hollow fibers. A coagulation liquid with a coagulation value of more than 30 is poured into the inner parts of the hollow fibers to effect the coagulation of the inner surfaces and at the same time a part of the solvent is evapolated from the outside surfaces of the fibers by drying. Then the fibers are dipped into a coagulation path with a coagulation value of less than 20 as water to coagulate from the outside surfaces to produce the objective hollow fibers.
USE: Blood dialysis.
COPYRIGHT: (C)1979,JPO&Japio
JP14259577A 1977-11-30 1977-11-30 Production of polycarbonate hollow fiber Granted JPS5477715A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14259577A JPS5477715A (en) 1977-11-30 1977-11-30 Production of polycarbonate hollow fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14259577A JPS5477715A (en) 1977-11-30 1977-11-30 Production of polycarbonate hollow fiber

Publications (2)

Publication Number Publication Date
JPS5477715A true JPS5477715A (en) 1979-06-21
JPS572809B2 JPS572809B2 (en) 1982-01-19

Family

ID=15318949

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14259577A Granted JPS5477715A (en) 1977-11-30 1977-11-30 Production of polycarbonate hollow fiber

Country Status (1)

Country Link
JP (1) JPS5477715A (en)

Also Published As

Publication number Publication date
JPS572809B2 (en) 1982-01-19

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