JPS54151614A - Production of hollow fibers - Google Patents

Production of hollow fibers

Info

Publication number
JPS54151614A
JPS54151614A JP6049078A JP6049078A JPS54151614A JP S54151614 A JPS54151614 A JP S54151614A JP 6049078 A JP6049078 A JP 6049078A JP 6049078 A JP6049078 A JP 6049078A JP S54151614 A JPS54151614 A JP S54151614A
Authority
JP
Japan
Prior art keywords
hollow fibers
hollow
solution
butanediol
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
JP6049078A
Other languages
Japanese (ja)
Inventor
Yasushi Jo
Noriaki Kaneko
Akihiko Niina
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 JP6049078A priority Critical patent/JPS54151614A/en
Publication of JPS54151614A publication Critical patent/JPS54151614A/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/08—Polysaccharides
    • B01D71/10—Cellulose; Modified cellulose

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • External Artificial Organs (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Artificial Filaments (AREA)

Abstract

PURPOSE: To spin hollow fibers having improved dialysis property, by extruding a cellulose ester solution in an organic solvent through an annular slit into a hollow filament shape and a specific liquid through the inner part.
CONSTITUTION: A cellulose ester is dissolved in an organic solvent. The solution is extruded through an annular slit, preferably perpendicularly downward, and a core liquid consisting mainly of at least one type of glycol selected from the group consisting of polyethylene glycol, triethylene glycol, diethylene, ethylene, butylene, propylene glycols, 1, 4-butanediol, and 1, 3-butanediol, is extruded into the hollow part of the spinning solution in the shape of a filament. Thus, hollow fibers having thin and uniform membrane wall and improved dialysis property can be obtained.
COPYRIGHT: (C)1979,JPO&Japio
JP6049078A 1978-05-20 1978-05-20 Production of hollow fibers Pending JPS54151614A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6049078A JPS54151614A (en) 1978-05-20 1978-05-20 Production of hollow fibers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6049078A JPS54151614A (en) 1978-05-20 1978-05-20 Production of hollow fibers

Publications (1)

Publication Number Publication Date
JPS54151614A true JPS54151614A (en) 1979-11-29

Family

ID=13143768

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6049078A Pending JPS54151614A (en) 1978-05-20 1978-05-20 Production of hollow fibers

Country Status (1)

Country Link
JP (1) JPS54151614A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5921721A (en) * 1982-07-23 1984-02-03 Nok Corp Preparation of hollow filament of polysulfone resin
US5258160A (en) * 1991-08-21 1993-11-02 Mitsubishi Cable Industries, Ltd. Process and apparatus for producing elongated body of elastic modulus changing type
EP0801973A1 (en) * 1996-04-19 1997-10-22 Teijin Limited Selectively permeable hollow fiber membrane and process for producing same

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5921721A (en) * 1982-07-23 1984-02-03 Nok Corp Preparation of hollow filament of polysulfone resin
JPH026849B2 (en) * 1982-07-23 1990-02-14 Nok Corp
US5258160A (en) * 1991-08-21 1993-11-02 Mitsubishi Cable Industries, Ltd. Process and apparatus for producing elongated body of elastic modulus changing type
EP0801973A1 (en) * 1996-04-19 1997-10-22 Teijin Limited Selectively permeable hollow fiber membrane and process for producing same
US6013182A (en) * 1996-04-19 2000-01-11 Teijin Limited Selectively permeable hollow fiber membrane and process for producing same

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