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JPS56152704A - Hollow fiber membrane and its manufacture - Google Patents

Hollow fiber membrane and its manufacture

Info

Publication number
JPS56152704A
JPS56152704A JP5578480A JP5578480A JPS56152704A JP S56152704 A JPS56152704 A JP S56152704A JP 5578480 A JP5578480 A JP 5578480A JP 5578480 A JP5578480 A JP 5578480A JP S56152704 A JPS56152704 A JP S56152704A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
layers
dense
solvent
polysulfone
hollow
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
JP5578480A
Inventor
Sadamu Asada
Takashi Hatano
Shunichiro Kurioka
Original Assignee
Kanegafuchi Chem Ind 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

Links

Abstract

PURPOSE: To raise water permeability and compaction resistance, by providing dense layers on the inside and outside of a polysulfone hollow fiber membrane, and forming a spongelike texture layer in contact with these dense layers.
CONSTITUTION: Polysulfone resin (5W35wt%) and 1W35wt% nonsolvent, such as a saturated polyol of 2W4 carbon number are mixed with a good solvent having ≥100°C boiling point and low volatility to prepare a spinning solution. This solution is forced out of a circular nozzle, and simultaneously, a solidifying liquid consisting of a mixture of a good solvent and a nonsolvent for polysulfone is introduced in the core part of the circular nozzle to solidify the spinning solution to prepare a hollow fiber membrane having ≤0.025μm hole diameter dense layers on both its inside and outside, and spongelike texture layers of 0.025W3μm average fine hole diameter in contact with the dense layers, m-Cresol, chlorobenzene, etc. are usable for a good solvent for polysulfone, and ethylene glycol, glycerin, etc. are usable for a non solvent for it.
COPYRIGHT: (C)1981,JPO&Japio
JP5578480A 1980-04-25 1980-04-25 Hollow fiber membrane and its manufacture Pending JPS56152704A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5578480A JPS56152704A (en) 1980-04-25 1980-04-25 Hollow fiber membrane and its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5578480A JPS56152704A (en) 1980-04-25 1980-04-25 Hollow fiber membrane and its manufacture

Publications (1)

Publication Number Publication Date
JPS56152704A true true JPS56152704A (en) 1981-11-26

Family

ID=13008521

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5578480A Pending JPS56152704A (en) 1980-04-25 1980-04-25 Hollow fiber membrane and its manufacture

Country Status (1)

Country Link
JP (1) JPS56152704A (en)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS588516A (en) * 1981-07-08 1983-01-18 Toyobo Co Ltd Preparation of polysulfone separation membrane
JPS58114702A (en) * 1981-12-28 1983-07-08 Kuraray Co Ltd Polysulfone hollow fiber membrane and its production
JPS58132111A (en) * 1982-01-29 1983-08-06 Asahi Chem Ind Co Ltd Polysulfone hollow fiber
JPS58156018A (en) * 1982-01-29 1983-09-16 Asahi Chem Ind Co Ltd Polysulfone resin hollow fiber
JPS58163724A (en) * 1982-03-24 1983-09-28 Nok Corp Hollow fiber filled with latent heat-storing agent
JPS5922605A (en) * 1982-07-02 1984-02-04 Gambro Dialysatoren Filter membrane and production thereof
JPS59228017A (en) * 1983-06-07 1984-12-21 Nitto Electric Ind Co Ltd Preparation of hollow yarn membrane of aromatic polysulfone
JPS61164602A (en) * 1985-01-17 1986-07-25 Daicel Chem Ind Ltd Hllow yarn membrane made of polysulfone resin and its preparation
WO1987000213A1 (en) * 1985-06-27 1987-01-15 Mitsubishi Rayon Co., Ltd. Composite hollow yarn and a process for producing the same
EP0294737A2 (en) * 1987-06-12 1988-12-14 Kuraray Co., Ltd. Polysulfone hollow fiber membrane and process for making the same

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49133614A (en) * 1973-05-01 1974-12-23
JPS548470A (en) * 1977-06-22 1979-01-22 Hitachi Ltd Measuring circuit for storage time
JPS54143777A (en) * 1978-05-01 1979-11-09 Asahi Chem Ind Co Ltd Aromatic polyether sulfone hollow yarn semipermeable membrane
JPS56126408A (en) * 1980-03-10 1981-10-03 Nitto Electric Ind Co Ltd Semipermeable membrane and its production

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS49133614A (en) * 1973-05-01 1974-12-23
JPS548470A (en) * 1977-06-22 1979-01-22 Hitachi Ltd Measuring circuit for storage time
JPS54143777A (en) * 1978-05-01 1979-11-09 Asahi Chem Ind Co Ltd Aromatic polyether sulfone hollow yarn semipermeable membrane
JPS56126408A (en) * 1980-03-10 1981-10-03 Nitto Electric Ind Co Ltd Semipermeable membrane and its production

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS588516A (en) * 1981-07-08 1983-01-18 Toyobo Co Ltd Preparation of polysulfone separation membrane
JPS58114702A (en) * 1981-12-28 1983-07-08 Kuraray Co Ltd Polysulfone hollow fiber membrane and its production
JPS6356802B2 (en) * 1981-12-28 1988-11-09 Kuraray Co
JPH0350005B2 (en) * 1982-01-29 1991-07-31 Asahi Chemical Ind
JPS58156018A (en) * 1982-01-29 1983-09-16 Asahi Chem Ind Co Ltd Polysulfone resin hollow fiber
JPH0323647B2 (en) * 1982-01-29 1991-03-29 Asahi Chemical Ind
JPS58132111A (en) * 1982-01-29 1983-08-06 Asahi Chem Ind Co Ltd Polysulfone hollow fiber
JPS58163724A (en) * 1982-03-24 1983-09-28 Nok Corp Hollow fiber filled with latent heat-storing agent
JPS5922605A (en) * 1982-07-02 1984-02-04 Gambro Dialysatoren Filter membrane and production thereof
JPH0453573B2 (en) * 1982-07-02 1992-08-27 Ganburo Deiarisatoren Gmbh Unto Co Kg
JPS59228017A (en) * 1983-06-07 1984-12-21 Nitto Electric Ind Co Ltd Preparation of hollow yarn membrane of aromatic polysulfone
JPH0569571B2 (en) * 1985-01-17 1993-10-01 Daicel Chem
JPS61164602A (en) * 1985-01-17 1986-07-25 Daicel Chem Ind Ltd Hllow yarn membrane made of polysulfone resin and its preparation
US4741829A (en) * 1985-06-27 1988-05-03 Mitsubishi Rayon Co., Ltd. Composite hollow fibers and method of making same
WO1987000213A1 (en) * 1985-06-27 1987-01-15 Mitsubishi Rayon Co., Ltd. Composite hollow yarn and a process for producing the same
EP0294737A3 (en) * 1987-06-12 1990-01-10 Kuraray Co., Ltd. Polysulfone hollow fiber membrane and process for making the same
EP0294737A2 (en) * 1987-06-12 1988-12-14 Kuraray Co., Ltd. Polysulfone hollow fiber membrane and process for making the same

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