JPS54146277A - Composite membrane for separating gas - Google Patents
Composite membrane for separating gasInfo
- Publication number
- JPS54146277A JPS54146277A JP5378478A JP5378478A JPS54146277A JP S54146277 A JPS54146277 A JP S54146277A JP 5378478 A JP5378478 A JP 5378478A JP 5378478 A JP5378478 A JP 5378478A JP S54146277 A JPS54146277 A JP S54146277A
- Authority
- JP
- Japan
- Prior art keywords
- film
- pref
- composite membrane
- under
- oxygen
- 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)
Abstract
PURPOSE: To provide a composite membrane excellent in both separation factor and permeability coefficient, which is constituted of very thin film of poly(4-methyl pentene-1) and porous material which supports the film.
CONSTITUTION: The membrane is a composite membrane which separates a specific gas from a mixed gas, e.g., oxygen-rich air from air. A dilute soln. of polymers composed principally 4-methyl pentene-1, copolymerised with ≤40 mol %, or pref. ≤30 mol % other monomer, is applied on the surface of a solid, or dropped on the surface of a liq. to form very thin film. The thickness of the film is 1μ or under, pref. 0.5μ or under, still pref. 0.3μ or under. If necessary, two or more sheets of the film are overlapped to fomr a film 1μ or under in total thickness. The film hereby obtained is overlapped with a porous material (Japanese paper, unwoven textile etc.) pref. 1μW5 mm, still pref. 10μW1 mm in thichness to form a composite membrane. The membrane is 2.5 or higher in oxygen-separation factor, about 10-8W10-9cc.cm/cm2.sec.cm Hg in oxygen-permeability coefficient.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5378478A JPS54146277A (en) | 1978-05-08 | 1978-05-08 | Composite membrane for separating gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5378478A JPS54146277A (en) | 1978-05-08 | 1978-05-08 | Composite membrane for separating gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54146277A true JPS54146277A (en) | 1979-11-15 |
Family
ID=12952431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5378478A Pending JPS54146277A (en) | 1978-05-08 | 1978-05-08 | Composite membrane for separating gas |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54146277A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS574203A (en) * | 1980-06-09 | 1982-01-09 | Teijin Ltd | Composite membrane for gas separation |
| JPS5959214A (en) * | 1982-09-28 | 1984-04-05 | Asahi Glass Co Ltd | Gas separating composite membrane |
| EP0124028A2 (en) * | 1983-04-22 | 1984-11-07 | Dainippon Ink And Chemicals, Inc. | Heterogeneous membrane and process for production thereof |
| US4950314A (en) * | 1986-08-14 | 1990-08-21 | Toray Industries Inc. | Gas separation membrane |
| JP2015186862A (en) * | 2014-03-26 | 2015-10-29 | 三菱樹脂株式会社 | Gas-permeable film |
| JP2016187802A (en) * | 2015-03-30 | 2016-11-04 | 三菱樹脂株式会社 | Gas-permeable film |
-
1978
- 1978-05-08 JP JP5378478A patent/JPS54146277A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS574203A (en) * | 1980-06-09 | 1982-01-09 | Teijin Ltd | Composite membrane for gas separation |
| JPH0224574B2 (en) * | 1980-06-09 | 1990-05-30 | Teijin Ltd | |
| JPS5959214A (en) * | 1982-09-28 | 1984-04-05 | Asahi Glass Co Ltd | Gas separating composite membrane |
| EP0124028A2 (en) * | 1983-04-22 | 1984-11-07 | Dainippon Ink And Chemicals, Inc. | Heterogeneous membrane and process for production thereof |
| US4950314A (en) * | 1986-08-14 | 1990-08-21 | Toray Industries Inc. | Gas separation membrane |
| JP2015186862A (en) * | 2014-03-26 | 2015-10-29 | 三菱樹脂株式会社 | Gas-permeable film |
| JP2016187802A (en) * | 2015-03-30 | 2016-11-04 | 三菱樹脂株式会社 | Gas-permeable film |
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