JPS55162311A - Manufacture of selective permeable membrane - Google Patents

Manufacture of selective permeable membrane

Info

Publication number
JPS55162311A
JPS55162311A JP7025579A JP7025579A JPS55162311A JP S55162311 A JPS55162311 A JP S55162311A JP 7025579 A JP7025579 A JP 7025579A JP 7025579 A JP7025579 A JP 7025579A JP S55162311 A JPS55162311 A JP S55162311A
Authority
JP
Japan
Prior art keywords
organic solvent
dope
permeable membrane
steeped
selective permeable
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
JP7025579A
Other languages
Japanese (ja)
Other versions
JPS587324B2 (en
Inventor
Akio Iwama
Masao Abe
Noritaka Kazuse
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.)
Nitto Denko Corp
Original Assignee
Nitto Electric Industrial 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 Nitto Electric Industrial Co Ltd filed Critical Nitto Electric Industrial Co Ltd
Priority to JP54070255A priority Critical patent/JPS587324B2/en
Publication of JPS55162311A publication Critical patent/JPS55162311A/en
Publication of JPS587324B2 publication Critical patent/JPS587324B2/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0002—Organic membrane manufacture
    • B01D67/0009—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching
    • B01D67/00091—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching by evaporation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0002—Organic membrane manufacture
    • B01D67/0009—Organic membrane manufacture by phase separation, sol-gel transition, evaporation or solvent quenching
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/08—Specific temperatures applied
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2323/00—Details relating to membrane preparation
    • B01D2323/08—Specific temperatures applied
    • B01D2323/081—Heating

Abstract

PURPOSE:To obtain a selective permeable membrane which is excellent in penetrating power and selectivity and resists against an organic solvent by a method wherein a dope containing a condensation polymer is applied on a supporting base material, then, a solvent on a surface layer of the dope is evaporated by means of heat treatment for a short time, and the material is steeped in a steeping solvent and water. CONSTITUTION:A dope is manufactured in such a manner that a condensation polymer, such as a polyimide group polymer, etc. is dissolved in a nonproton organic solvent having a high boiling point, such as N-methyl-2-pyrrolidone, etc. The dope is applied on a supporting base material, and the material is heat-treated with a hot air, etc. with a temperature to the extent that the organic solvent is not boiled. The material is steeped in the second organic solvent, such as fatty monovalent alcohol, etc. with 1-5 carbon number compatible with the organic solvent and water, and further steeped in water, and a selective permeable membrane is obtained. The membrane having superior selectivity and penetrating power, is hard to be consolidated, and is excellent in a resisting property against an organic solvent.
JP54070255A 1979-06-04 1979-06-04 Manufacturing method of selectively permeable membrane Expired JPS587324B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP54070255A JPS587324B2 (en) 1979-06-04 1979-06-04 Manufacturing method of selectively permeable membrane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54070255A JPS587324B2 (en) 1979-06-04 1979-06-04 Manufacturing method of selectively permeable membrane

Publications (2)

Publication Number Publication Date
JPS55162311A true JPS55162311A (en) 1980-12-17
JPS587324B2 JPS587324B2 (en) 1983-02-09

Family

ID=13426257

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54070255A Expired JPS587324B2 (en) 1979-06-04 1979-06-04 Manufacturing method of selectively permeable membrane

Country Status (1)

Country Link
JP (1) JPS587324B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57120599A (en) * 1981-01-20 1982-07-27 Nitto Electric Ind Co Ltd Treatment of protein organic solution
JPS57174108A (en) * 1981-04-21 1982-10-26 Teijin Ltd Production of perm selective membrane
JP2014504551A (en) * 2011-01-24 2014-02-24 ダウ グローバル テクノロジーズ エルエルシー Composite polyamide membrane
JP2014504550A (en) * 2011-01-24 2014-02-24 ダウ グローバル テクノロジーズ エルエルシー Composite polyamide membrane
WO2024053690A1 (en) * 2022-09-09 2024-03-14 東レ株式会社 Porous film and composite film

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3567632A (en) * 1968-09-04 1971-03-02 Du Pont Permselective,aromatic,nitrogen-containing polymeric membranes
JPS51144384A (en) * 1975-06-09 1976-12-11 Asahi Chem Ind Co Ltd A permselective polymer membrane
JPS53125980A (en) * 1977-04-12 1978-11-02 Teijin Ltd Improved polybenzimidazolone selective permeable membrane
JPS5494477A (en) * 1978-01-10 1979-07-26 Nitto Electric Ind Co Ltd Manufacture of selective permeable membrnae

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3567632A (en) * 1968-09-04 1971-03-02 Du Pont Permselective,aromatic,nitrogen-containing polymeric membranes
JPS51144384A (en) * 1975-06-09 1976-12-11 Asahi Chem Ind Co Ltd A permselective polymer membrane
JPS53125980A (en) * 1977-04-12 1978-11-02 Teijin Ltd Improved polybenzimidazolone selective permeable membrane
JPS5494477A (en) * 1978-01-10 1979-07-26 Nitto Electric Ind Co Ltd Manufacture of selective permeable membrnae

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57120599A (en) * 1981-01-20 1982-07-27 Nitto Electric Ind Co Ltd Treatment of protein organic solution
JPS57174108A (en) * 1981-04-21 1982-10-26 Teijin Ltd Production of perm selective membrane
JP2014504551A (en) * 2011-01-24 2014-02-24 ダウ グローバル テクノロジーズ エルエルシー Composite polyamide membrane
JP2014504550A (en) * 2011-01-24 2014-02-24 ダウ グローバル テクノロジーズ エルエルシー Composite polyamide membrane
WO2024053690A1 (en) * 2022-09-09 2024-03-14 東レ株式会社 Porous film and composite film

Also Published As

Publication number Publication date
JPS587324B2 (en) 1983-02-09

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