JPS5571811A - Production of hollow fiber - Google Patents

Production of hollow fiber

Info

Publication number
JPS5571811A
JPS5571811A JP14633178A JP14633178A JPS5571811A JP S5571811 A JPS5571811 A JP S5571811A JP 14633178 A JP14633178 A JP 14633178A JP 14633178 A JP14633178 A JP 14633178A JP S5571811 A JPS5571811 A JP S5571811A
Authority
JP
Japan
Prior art keywords
cellulose ester
solution
organic solvent
filamentary material
extruded
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
JP14633178A
Other languages
Japanese (ja)
Inventor
Yasushi Jo
Akihiko Niina
Noriaki Kaneko
Toshio Sano
Noriyuki Ichige
Koji Ichikawa
Akira Fukutome
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 JP14633178A priority Critical patent/JPS5571811A/en
Publication of JPS5571811A publication Critical patent/JPS5571811A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To obtain hollow fibers usable for blood purification and dialysis membranes, without forming huge voids, by introducing a specific core liquid into the hollow part of a filamentary material extruded from a cellulose ester solution in an organic solvent containing a specific additive.
CONSTITUTION: A cellulose ester is dissolved in an organic solvent, and 10W 200wt% based on the cellulose ester of (A) an additive consisting of the reaction product of (a) a dibasic acid anhydride, e.g. maleic anhydride, with (b) a lower alcohol, e.g. methanol, and (a) or (b) or both are added to the solution. The resulting spinning solution is extruded through an annular slit into a filamentary material, and (B) a core liquid consisting of (C) a solvent for the cellulose ester and/or a swelling agent, e.g. dimethyl sulfoxide, (or their mixture) or (d) an aqueous solution of a salt having the salting out effect to form the desired hollow fibers.
COPYRIGHT: (C)1980,JPO&Japio
JP14633178A 1978-11-27 1978-11-27 Production of hollow fiber Pending JPS5571811A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14633178A JPS5571811A (en) 1978-11-27 1978-11-27 Production of hollow fiber

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14633178A JPS5571811A (en) 1978-11-27 1978-11-27 Production of hollow fiber

Publications (1)

Publication Number Publication Date
JPS5571811A true JPS5571811A (en) 1980-05-30

Family

ID=15405260

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14633178A Pending JPS5571811A (en) 1978-11-27 1978-11-27 Production of hollow fiber

Country Status (1)

Country Link
JP (1) JPS5571811A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2318760B (en) * 1995-09-14 2000-05-17 Secr Defence Hollow fibres and method of manufacture therefor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2318760B (en) * 1995-09-14 2000-05-17 Secr Defence Hollow fibres and method of manufacture therefor

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