[go: up one dir, main page]

JPS54116422A - Production of hollow fibers - Google Patents

Production of hollow fibers

Info

Publication number
JPS54116422A
JPS54116422A JP2262778A JP2262778A JPS54116422A JP S54116422 A JPS54116422 A JP S54116422A JP 2262778 A JP2262778 A JP 2262778A JP 2262778 A JP2262778 A JP 2262778A JP S54116422 A JPS54116422 A JP S54116422A
Authority
JP
Japan
Prior art keywords
water
hollow fibers
organic solvent
cellulose ester
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
JP2262778A
Other languages
Japanese (ja)
Inventor
Yasushi Jo
Noriaki Kaneko
Akira Fukutome
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 JP2262778A priority Critical patent/JPS54116422A/en
Publication of JPS54116422A publication Critical patent/JPS54116422A/en
Pending legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To obtain uniform thin-walled hollow fibers having improved selective permeability, by dry jet-wet spinning of a cellulose ester solution in an organic solvent from an annular slit under specific conditions.
CONSTITUTION: A cellulose ester is dissolved in an organic solvent to form a solution, which is extruded through an annular slit almost perpendicularly downward in the form of filaments, and dimethyl sulfoxide or a liquid containing it is fed to the interior of the extruded filament material. The filament material is then passed through a space, at least 5 cm, and coagulated in a coagulation bath of water or a liquid consisting of 40 wt.% or more of water, and preferably washed with water.
COPYRIGHT: (C)1979,JPO&Japio
JP2262778A 1978-02-27 1978-02-27 Production of hollow fibers Pending JPS54116422A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2262778A JPS54116422A (en) 1978-02-27 1978-02-27 Production of hollow fibers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2262778A JPS54116422A (en) 1978-02-27 1978-02-27 Production of hollow fibers

Publications (1)

Publication Number Publication Date
JPS54116422A true JPS54116422A (en) 1979-09-10

Family

ID=12088056

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2262778A Pending JPS54116422A (en) 1978-02-27 1978-02-27 Production of hollow fibers

Country Status (1)

Country Link
JP (1) JPS54116422A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6013182A (en) * 1996-04-19 2000-01-11 Teijin Limited Selectively permeable hollow fiber membrane and process for producing same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6013182A (en) * 1996-04-19 2000-01-11 Teijin Limited Selectively permeable hollow fiber membrane and process for producing same

Similar Documents

Publication Publication Date Title
JPS5584412A (en) Production of hollow fiber
JPS54116422A (en) Production of hollow fibers
ES267109U (en) Plasmaphoresis membrane
JPS55112310A (en) Production of acrylonitrile hollow fiber
JPS54151615A (en) Production of hollow fibers
JPS5653208A (en) Composite acrylic fiber and its production
JPS5442419A (en) Production of hollow fiber
JPS54147220A (en) Acrylonitrile fiber containing copper compound
JPS5571808A (en) Production of cellulose hollow
IE44525L (en) Hydrophilic filaments
JPS55107505A (en) Production of hollow fiber
JPS5576106A (en) Hollow fiber with capillary void and its manufacture
JPS5427025A (en) Improved production of hollow fiber memranes
JPS5771409A (en) Preparation of hollow fiber
JPS5620609A (en) Production of hollow cellulose derivative fiber
ES432369A1 (en) Process for spinning acrylic polymers
JPS5536362A (en) Production of hollow fiber
JPS569424A (en) Hollow acrylonitrile fiber and its production
JPS54131026A (en) Production of hollow cellulose acetate fibers
JPS54134116A (en) Production of selective permeable hollow cellulose acetate fibers
JPS54131025A (en) Production of hollow cellulose derivative fibers
JPS569421A (en) Cellulose ester hollow fiber and its production
JPS5390367A (en) Preparation of hollow fiber membrane
GB2011831A (en) Method of Producing Hydrophilic Threads or Fibres
JPS54151574A (en) Manufacture of acrylonitrile hollow fiber