JPS56123408A - Porous hollow fiber of acrylonitrile copolymer for medical treatment and its preparation - Google Patents

Porous hollow fiber of acrylonitrile copolymer for medical treatment and its preparation

Info

Publication number
JPS56123408A
JPS56123408A JP2277880A JP2277880A JPS56123408A JP S56123408 A JPS56123408 A JP S56123408A JP 2277880 A JP2277880 A JP 2277880A JP 2277880 A JP2277880 A JP 2277880A JP S56123408 A JPS56123408 A JP S56123408A
Authority
JP
Japan
Prior art keywords
hollow
solution
hollow fiber
stock solution
coagulating
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
JP2277880A
Other languages
Japanese (ja)
Other versions
JPS5753448B2 (en
Inventor
Hiroyuki Watanabe
Yoshihiro Nagano
Masahiro Miki
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.)
National Institute of Advanced Industrial Science and Technology AIST
Original Assignee
Agency of Industrial Science and Technology
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 Agency of Industrial Science and Technology filed Critical Agency of Industrial Science and Technology
Priority to JP2277880A priority Critical patent/JPS56123408A/en
Publication of JPS56123408A publication Critical patent/JPS56123408A/en
Publication of JPS5753448B2 publication Critical patent/JPS5753448B2/ja
Granted legal-status Critical Current

Links

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

Abstract

PURPOSE: To obtain the titled hollow fiber for ultrafiltration having high water permeability, suitable for removing water from the blood, having radiate huge hollow, by spinning a spinning stock solution from a ring spinning nozzle by using a core solution having high coagulating ability, coagulating a thread in a liquid bath immiscible with the stock solution.
CONSTITUTION: A spinning stock solution of 10W35wt% acrylonitrile copolymer in an inorganic solvent (e.g., nitric acid, etc.) dissolving the copolymer in any concentration is spun through a ring spinning nozzle using a coagulating solution (e.g., aqueous solution of nitric acid, etc.) having high coagulating ability as an internal core solution. The thread is introduced to a liquid bath (e.g., liquid paraffin, etc.) immiscible with the spinning stock solution and coagulated in it so that network porous layers comprising 0.1W5μ thick minute layer having micropores with pore diameter not more than 100Å at the most internal layer of the hollow fiber, and the middle outer layer and most outer layer having many huge hollow groups which continuously expands from the inside to outside of the fiber and are arranged radiately, having hollow pores with pore diameter 100Å to 10μ at the surroundings of the huge hollow, are formed, to give the desired hollow fiber.
COPYRIGHT: (C)1981,JPO&Japio
JP2277880A 1980-02-27 1980-02-27 Porous hollow fiber of acrylonitrile copolymer for medical treatment and its preparation Granted JPS56123408A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2277880A JPS56123408A (en) 1980-02-27 1980-02-27 Porous hollow fiber of acrylonitrile copolymer for medical treatment and its preparation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2277880A JPS56123408A (en) 1980-02-27 1980-02-27 Porous hollow fiber of acrylonitrile copolymer for medical treatment and its preparation

Publications (2)

Publication Number Publication Date
JPS56123408A true JPS56123408A (en) 1981-09-28
JPS5753448B2 JPS5753448B2 (en) 1982-11-12

Family

ID=12092118

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2277880A Granted JPS56123408A (en) 1980-02-27 1980-02-27 Porous hollow fiber of acrylonitrile copolymer for medical treatment and its preparation

Country Status (1)

Country Link
JP (1) JPS56123408A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0194901A (en) * 1987-08-31 1989-04-13 Gambro Dialysatoren Gmbh & Co Kg Permiation-selective unsymmetrical membrane suitable for blood dialysis

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6061439A (en) * 1983-09-16 1985-04-09 Sato Yoshihisa Printed book nipping-out device for rotary collator

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS536627A (en) * 1976-07-08 1978-01-21 Nippon Zeon Co Ltd Hollow fibers

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS536627A (en) * 1976-07-08 1978-01-21 Nippon Zeon Co Ltd Hollow fibers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0194901A (en) * 1987-08-31 1989-04-13 Gambro Dialysatoren Gmbh & Co Kg Permiation-selective unsymmetrical membrane suitable for blood dialysis

Also Published As

Publication number Publication date
JPS5753448B2 (en) 1982-11-12

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