JPS57159503A - Composite semi-permeable membrane and preparation thereof - Google Patents

Composite semi-permeable membrane and preparation thereof

Info

Publication number
JPS57159503A
JPS57159503A JP4538881A JP4538881A JPS57159503A JP S57159503 A JPS57159503 A JP S57159503A JP 4538881 A JP4538881 A JP 4538881A JP 4538881 A JP4538881 A JP 4538881A JP S57159503 A JPS57159503 A JP S57159503A
Authority
JP
Japan
Prior art keywords
permeable membrane
composite semi
membrane
preparation
immersed
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
JP4538881A
Other languages
Japanese (ja)
Other versions
JPH0119922B2 (en
Inventor
Takeyuki Kawaguchi
Shigeyoshi Hara
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.)
Teijin Ltd
Original Assignee
Teijin 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 Teijin Ltd filed Critical Teijin Ltd
Priority to JP4538881A priority Critical patent/JPS57159503A/en
Publication of JPS57159503A publication Critical patent/JPS57159503A/en
Publication of JPH0119922B2 publication Critical patent/JPH0119922B2/ja
Granted legal-status Critical Current

Links

Abstract

PURPOSE: To obtain the composite semi-permeable membrane with high permeability at a low operation pressure by reacting an aromatic polyamine with a specific structure with an aromatic polyfunctional compound on a microporous membrane.
CONSTITUTION: 2,4-Diaminophenol dihydrochloride and NaOH are dissolved in distilled water and, after a polysulfone microporous membrane having fine pores is immersed in the obtained aqueous solution, it is drained at a room temp. The resulting membrane is immersed in a solution of trimesic chloride and isophthalic chloride in n-hexane and taken out therefrom to be dried at a room temp.
COPYRIGHT: (C)1982,JPO&Japio
JP4538881A 1981-03-30 1981-03-30 Composite semi-permeable membrane and preparation thereof Granted JPS57159503A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4538881A JPS57159503A (en) 1981-03-30 1981-03-30 Composite semi-permeable membrane and preparation thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4538881A JPS57159503A (en) 1981-03-30 1981-03-30 Composite semi-permeable membrane and preparation thereof

Publications (2)

Publication Number Publication Date
JPS57159503A true JPS57159503A (en) 1982-10-01
JPH0119922B2 JPH0119922B2 (en) 1989-04-13

Family

ID=12717879

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4538881A Granted JPS57159503A (en) 1981-03-30 1981-03-30 Composite semi-permeable membrane and preparation thereof

Country Status (1)

Country Link
JP (1) JPS57159503A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60150806A (en) * 1984-01-20 1985-08-08 Agency Of Ind Science & Technol Preparation of polyimide hollow yarn membrane
JPS62121603A (en) * 1985-08-05 1987-06-02 Toray Ind Inc Composite semipermeable membrane and preparation thereof
US5091216A (en) * 1988-04-13 1992-02-25 E. I. Du Pont De Nemours And Company Reactive post treatment for gas separation membranes

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4942579A (en) * 1972-08-30 1974-04-22
JPS55147106A (en) * 1979-02-22 1980-11-15 Filmtec Corp Osmotic membrane synthesized on interface

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4942579A (en) * 1972-08-30 1974-04-22
JPS55147106A (en) * 1979-02-22 1980-11-15 Filmtec Corp Osmotic membrane synthesized on interface

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60150806A (en) * 1984-01-20 1985-08-08 Agency Of Ind Science & Technol Preparation of polyimide hollow yarn membrane
JPS6261327B2 (en) * 1984-01-20 1987-12-21 Kogyo Gijutsuin
JPS62121603A (en) * 1985-08-05 1987-06-02 Toray Ind Inc Composite semipermeable membrane and preparation thereof
JPH0419892B2 (en) * 1985-08-05 1992-03-31 Toray Industries
US5091216A (en) * 1988-04-13 1992-02-25 E. I. Du Pont De Nemours And Company Reactive post treatment for gas separation membranes

Also Published As

Publication number Publication date
JPH0119922B2 (en) 1989-04-13

Similar Documents

Publication Publication Date Title
US4950404B1 (en)
CA2069510A1 (en) Dry high flux semipermeable membranes
DE3063808D1 (en) Interfacially synthesized reverse osmosis membrane, process for the preparation thereof and its use in a process for removing solute from solute-containing water
FR2331602B1 (en)
JPS6475542A (en) Hydrophilic porous membrane of polyvinylidene fluoride and production thereof
JPS5417978A (en) Hydrophilic and porous composite structure and its production
JPS5712802A (en) Water extraction system using permeable membrane
JPS57159503A (en) Composite semi-permeable membrane and preparation thereof
JPS57159587A (en) Sterilization and purification of water
JPS5566935A (en) Production of porous vinylidene fluoride resin membrane
JPS55147108A (en) Treatment of polysulfone semipermeable membrane
JPS5690838A (en) Production of composite membrane by utilizing plasma irradiation
JPS57206378A (en) Filtering method of sake
JPS5794307A (en) Treatment of dry composite semipermeable membrane
JPS57141432A (en) Hydrophilic polyolefin resin porous membrane and its production
JPS52120978A (en) Washing method of semipermeable membrane
JPS57136904A (en) Permselective membrane
JPS5791706A (en) Composite semipermeable membrane and method for producing the same
JPS5791707A (en) Composite semipermeable membrane and method for producing the same
JPS5750507A (en) Permselective membrane and its production
JPS539277A (en) Improving method for water permeability of porous plastic membrane
JPS57159821A (en) Production of photopolymer
JPS5360883A (en) Artificial membrane having structure of double layers or multiple layersand its vesicular substance
JPS5631409A (en) Preparing acrylonitrile-based reverse osmosis membrane
JPS5624008A (en) Selective permeable membrane and dialysis device comprising said membrane