JPS57159503A - Composite semi-permeable membrane and preparation thereof - Google Patents
Composite semi-permeable membrane and preparation thereofInfo
- 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
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
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)
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)
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 |
-
1981
- 1981-03-30 JP JP4538881A patent/JPS57159503A/en active Granted
Patent Citations (2)
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)
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 |
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