JPS5455623A - Hollow fiber and its production - Google Patents

Hollow fiber and its production

Info

Publication number
JPS5455623A
JPS5455623A JP11918777A JP11918777A JPS5455623A JP S5455623 A JPS5455623 A JP S5455623A JP 11918777 A JP11918777 A JP 11918777A JP 11918777 A JP11918777 A JP 11918777A JP S5455623 A JPS5455623 A JP S5455623A
Authority
JP
Japan
Prior art keywords
less
sheath
extruded
sent
air
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
JP11918777A
Other languages
Japanese (ja)
Other versions
JPS5932562B2 (en
Inventor
Koji Mimura
Toru Takemura
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.)
Mitsubishi Rayon Co Ltd
Original Assignee
Mitsubishi Rayon 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 Mitsubishi Rayon Co Ltd filed Critical Mitsubishi Rayon Co Ltd
Priority to JP11918777A priority Critical patent/JPS5932562B2/en
Publication of JPS5455623A publication Critical patent/JPS5455623A/en
Publication of JPS5932562B2 publication Critical patent/JPS5932562B2/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/08—Hollow fibre membranes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
  • Artificial Filaments (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)

Abstract

PURPOSE: A spinning dope is extruded as the sheath part and air is sent into the core part and they are introduced into a coagulation bath to produce said hollow fibers having a dense layer on the inner surface and high water-permeability and substance separability.
CONSTITUTION: A spinning dope of a polymer having no less than 50 wt% acrylonitrile content and no less than 200 poise viscosity it extruded from the sheath part of sheath-core type conjugate sipinnerets and slightly pressurized (generally 0,3W50cm water column) air or inert gas is sent to the core part, thereby effecting wet spinning, Resulting films has the very thin dence layer, less than 1/3 the total thickness of the film layer, on the inner surface, substantially no pores of 100Å or larger diameter, therefore they are excellent in ultrafiltration property
COPYRIGHT: (C)1979,JPO&Japio
JP11918777A 1977-10-04 1977-10-04 Hollow fibrous membrane and its manufacturing method Expired JPS5932562B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11918777A JPS5932562B2 (en) 1977-10-04 1977-10-04 Hollow fibrous membrane and its manufacturing method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11918777A JPS5932562B2 (en) 1977-10-04 1977-10-04 Hollow fibrous membrane and its manufacturing method

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP21966885A Division JPS61222504A (en) 1985-10-02 1985-10-02 Hollow fibrous membrane

Publications (2)

Publication Number Publication Date
JPS5455623A true JPS5455623A (en) 1979-05-02
JPS5932562B2 JPS5932562B2 (en) 1984-08-09

Family

ID=14755058

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11918777A Expired JPS5932562B2 (en) 1977-10-04 1977-10-04 Hollow fibrous membrane and its manufacturing method

Country Status (1)

Country Link
JP (1) JPS5932562B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59132904A (en) * 1983-01-20 1984-07-31 Toray Ind Inc Hollow yarn membrane with selective permeability and preparation thereof
JPS59223308A (en) * 1983-06-01 1984-12-15 Mitsubishi Rayon Co Ltd Hydrophilic hollow acrylic yarn
US4812269A (en) * 1985-03-07 1989-03-14 Gambro Dialysatoren Kg Process for producing hollow fiber semi-permeable membranes
JPH02273522A (en) * 1989-04-17 1990-11-08 Asahi Medical Co Ltd Polyacrylonitrile group hollow yarn film and its manufacture
US5403485A (en) * 1992-05-20 1995-04-04 Akzo N.V. Dialysis membrane made of cellulose acetate

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0423720Y2 (en) * 1985-09-17 1992-06-03
DE3725791C1 (en) * 1987-08-04 1989-02-02 Daimler-Benz Ag, 7000 Stuttgart, De
US7238423B2 (en) 2004-12-20 2007-07-03 Kimberly-Clark Worldwide, Inc. Multicomponent fiber including elastic elements

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59132904A (en) * 1983-01-20 1984-07-31 Toray Ind Inc Hollow yarn membrane with selective permeability and preparation thereof
JPS59223308A (en) * 1983-06-01 1984-12-15 Mitsubishi Rayon Co Ltd Hydrophilic hollow acrylic yarn
JPH0346562B2 (en) * 1983-06-01 1991-07-16 Mitsubishi Rayon Co
US4812269A (en) * 1985-03-07 1989-03-14 Gambro Dialysatoren Kg Process for producing hollow fiber semi-permeable membranes
JPH02273522A (en) * 1989-04-17 1990-11-08 Asahi Medical Co Ltd Polyacrylonitrile group hollow yarn film and its manufacture
US5403485A (en) * 1992-05-20 1995-04-04 Akzo N.V. Dialysis membrane made of cellulose acetate

Also Published As

Publication number Publication date
JPS5932562B2 (en) 1984-08-09

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