JPS56135525A - Production of porous membrane - Google Patents
Production of porous membraneInfo
- Publication number
- JPS56135525A JPS56135525A JP3955680A JP3955680A JPS56135525A JP S56135525 A JPS56135525 A JP S56135525A JP 3955680 A JP3955680 A JP 3955680A JP 3955680 A JP3955680 A JP 3955680A JP S56135525 A JPS56135525 A JP S56135525A
- Authority
- JP
- Japan
- Prior art keywords
- membrane
- light
- porous membrane
- microcircles
- photopolymer
- 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
- External Artificial Organs (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
PURPOSE: To produce a porous membrane having a controlled pore diameter and being suitable for blood cell separation, by irradiating a membrane comprising a photopolymer with light to cause a selective chemical change of the surface of the membrane, and then removing pore-forming areas from the membrane.
CONSTITUTION: A flat mask 5 is placed between a light source 1 and a membrane 6 comprising a photopolymer which upon light-irradiation can decompose or crosslink and changes in its chemical properties, such as polyisopropenyl ketone or polyglycidyl methacrylate. The mask 5 has a number of substantially equally spaced microcircles having a size corresponding to that of pores to be bored through the membrane 6 so that the light transmittances differ between the inside of the microcircles and the other area. Next, the porous membrane of the purpose is produced by passing light in the visible or far-ultraviolet region to the membrane 6 from the source 1 to cause a selective chemical change of the membrane, and removing the pore-forming areas.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3955680A JPS56135525A (en) | 1980-03-27 | 1980-03-27 | Production of porous membrane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3955680A JPS56135525A (en) | 1980-03-27 | 1980-03-27 | Production of porous membrane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56135525A true JPS56135525A (en) | 1981-10-23 |
Family
ID=12556335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3955680A Pending JPS56135525A (en) | 1980-03-27 | 1980-03-27 | Production of porous membrane |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56135525A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58223410A (en) * | 1982-06-22 | 1983-12-26 | Nok Corp | Composite semipermeable membrane |
| JPS6249923A (en) * | 1985-08-27 | 1987-03-04 | Aisin Warner Ltd | Production of oil filter |
| US7744820B2 (en) | 2002-11-19 | 2010-06-29 | Katsuya Togawa | Plasma or serum separation membrane and filter apparatus including the plasma or serum separation membrane |
| US8999167B2 (en) | 2003-08-07 | 2015-04-07 | Asahi Kasei Medical Co., Ltd. | Composite porous membrane and process for producing the same |
-
1980
- 1980-03-27 JP JP3955680A patent/JPS56135525A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58223410A (en) * | 1982-06-22 | 1983-12-26 | Nok Corp | Composite semipermeable membrane |
| JPS6249923A (en) * | 1985-08-27 | 1987-03-04 | Aisin Warner Ltd | Production of oil filter |
| US7744820B2 (en) | 2002-11-19 | 2010-06-29 | Katsuya Togawa | Plasma or serum separation membrane and filter apparatus including the plasma or serum separation membrane |
| US7993847B2 (en) | 2002-11-19 | 2011-08-09 | Sekisui Medical Co., Ltd. | Plasma or serum separation membrane and filter apparatus including the plasma or serum separation membrane |
| US8999167B2 (en) | 2003-08-07 | 2015-04-07 | Asahi Kasei Medical Co., Ltd. | Composite porous membrane and process for producing the same |
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