JPS57177303A - Selective permeable film - Google Patents
Selective permeable filmInfo
- Publication number
- JPS57177303A JPS57177303A JP664982A JP664982A JPS57177303A JP S57177303 A JPS57177303 A JP S57177303A JP 664982 A JP664982 A JP 664982A JP 664982 A JP664982 A JP 664982A JP S57177303 A JPS57177303 A JP S57177303A
- Authority
- JP
- Japan
- Prior art keywords
- polyimide
- solvent
- pipe
- unit shown
- dope
- 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
Links
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
- Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
- Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
Abstract
PURPOSE: To increase a water permeating speed while excellent characteristics of a polyimide film is maintained by introducing a specific amount of a carboxyl group into the polymer chain of aliphatic polyimide comprising a specific structural unit as a side chain.
CONSTITUTION: An imide unit shown by formulaIand a carboxylated imide unit shown by formula II are dissolved in N-methyl-2-pyrrolidone, dimethylformamide, dimethylacetamide or a mixed solvent thereof along with 10W30pts. of swelling agent per 100pts. of polyimide to form a uniform dope with viscosity of 50W300poise. This dope is coated on a plate and a pipe having a smooth surface such as glass or the like or a base material of a fibrous sheet or a pipe and, after a part of the solvent is evaporated, the coated material is immersed in a coagulating solvent to coagulate polyimide. Thus obtained film has heat resistance, solvent resistance, chemical resistance, anti-bacterial property as well as a high water permeating speed.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP664982A JPS57177303A (en) | 1982-01-18 | 1982-01-18 | Selective permeable film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP664982A JPS57177303A (en) | 1982-01-18 | 1982-01-18 | Selective permeable film |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13211279A Division JPS5655428A (en) | 1979-10-12 | 1979-10-12 | Polyimide and selectively permeable membrane prepared therefrom |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57177303A true JPS57177303A (en) | 1982-11-01 |
Family
ID=11644219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP664982A Pending JPS57177303A (en) | 1982-01-18 | 1982-01-18 | Selective permeable film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57177303A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4705540A (en) * | 1986-04-17 | 1987-11-10 | E. I. Du Pont De Nemours And Company | Polyimide gas separation membranes |
| CN108939949A (en) * | 2018-07-17 | 2018-12-07 | 大连理工大学 | A kind of pair of bilirubin has the polyimides affinity membrane and preparation method thereof of high absorption property |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53127600A (en) * | 1977-04-13 | 1978-11-07 | Teijin Ltd | Polybenzimidazolone bearing pendant carboxyl groups and its productin and selective permeation membrane therefrom |
| JPS5471785A (en) * | 1977-11-18 | 1979-06-08 | Nitto Electric Ind Co Ltd | Selectively permeable membrane and production thereof |
-
1982
- 1982-01-18 JP JP664982A patent/JPS57177303A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53127600A (en) * | 1977-04-13 | 1978-11-07 | Teijin Ltd | Polybenzimidazolone bearing pendant carboxyl groups and its productin and selective permeation membrane therefrom |
| JPS5471785A (en) * | 1977-11-18 | 1979-06-08 | Nitto Electric Ind Co Ltd | Selectively permeable membrane and production thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4705540A (en) * | 1986-04-17 | 1987-11-10 | E. I. Du Pont De Nemours And Company | Polyimide gas separation membranes |
| CN108939949A (en) * | 2018-07-17 | 2018-12-07 | 大连理工大学 | A kind of pair of bilirubin has the polyimides affinity membrane and preparation method thereof of high absorption property |
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