JPS57159508A - Preparation of selective permeable membrane - Google Patents
Preparation of selective permeable membraneInfo
- Publication number
- JPS57159508A JPS57159508A JP4430281A JP4430281A JPS57159508A JP S57159508 A JPS57159508 A JP S57159508A JP 4430281 A JP4430281 A JP 4430281A JP 4430281 A JP4430281 A JP 4430281A JP S57159508 A JPS57159508 A JP S57159508A
- Authority
- JP
- Japan
- Prior art keywords
- membrane
- swelling agent
- aromatic polyamide
- dope
- selective permeable
- 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 selective permeable membrane having extremely small molecular wt. fractionating property compared to a conventional aromatic polyamide selective permeable membrane by containing a specified org. swelling agent and a specified inorg. swelling agent in aromatic polyamide in a specific ratio.
CONSTITUTION: An aromatic polyamide is added to and dissolved in a dope solvent in which an inorg. swelling agent is preliminarily dissolved and, to the resulting solution, an org. swelling agent is subsequently added and the obtained solution stirred at a room temp. or, according to necessity, while it is heated to a temp. of about 80W150°C to form a uniform dope. This dope is coated on a support base material and the coatd base material is immersed in a coagulating solvent for coagulating said aromatic polyamide to coagulate the polyamide to form a membrane. By this method, because poliamide is rapidly coagulated and the surface layer of the membrane is formed rapidly and uniformly, the skin layer thereof is formed into a microporous structure with extremely narrow pore size distribution width and fractionating property against molecular wt. of a solute is high and the membrane having the high exhaustive ratio of a solute with a certain molecular wt. or more is obtained.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4430281A JPS57159508A (en) | 1981-03-25 | 1981-03-25 | Preparation of selective permeable membrane |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4430281A JPS57159508A (en) | 1981-03-25 | 1981-03-25 | Preparation of selective permeable membrane |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57159508A true JPS57159508A (en) | 1982-10-01 |
JPS6151928B2 JPS6151928B2 (en) | 1986-11-11 |
Family
ID=12687699
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4430281A Granted JPS57159508A (en) | 1981-03-25 | 1981-03-25 | Preparation of selective permeable membrane |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57159508A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014036946A (en) * | 2012-08-20 | 2014-02-27 | Unitika Ltd | Polyamide ultrafilter membrane having organic solvent resistance, and method for manufacturing the same |
WO2014092198A1 (en) * | 2012-12-14 | 2014-06-19 | 東レ株式会社 | Production method for semipermeable membrane, and semipermeable membrane |
WO2015093080A1 (en) * | 2013-12-16 | 2015-06-25 | 東レ株式会社 | Semipermeable membrane manufacturing method and semipermeable membrane |
JP2016193430A (en) * | 2016-05-13 | 2016-11-17 | ユニチカ株式会社 | Polyamide ultrafilter membrane having organic solvent resistance, and method for manufacturing the same |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0286630U (en) * | 1988-12-23 | 1990-07-09 |
-
1981
- 1981-03-25 JP JP4430281A patent/JPS57159508A/en active Granted
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014036946A (en) * | 2012-08-20 | 2014-02-27 | Unitika Ltd | Polyamide ultrafilter membrane having organic solvent resistance, and method for manufacturing the same |
WO2014092198A1 (en) * | 2012-12-14 | 2014-06-19 | 東レ株式会社 | Production method for semipermeable membrane, and semipermeable membrane |
JPWO2015093080A1 (en) * | 2012-12-14 | 2017-03-16 | 東レ株式会社 | Method for producing semipermeable membrane, and semipermeable membrane |
WO2015093080A1 (en) * | 2013-12-16 | 2015-06-25 | 東レ株式会社 | Semipermeable membrane manufacturing method and semipermeable membrane |
CN105828922A (en) * | 2013-12-16 | 2016-08-03 | 东丽株式会社 | Semipermeable membrane manufacturing method and semipermeable membrane |
JP2016193430A (en) * | 2016-05-13 | 2016-11-17 | ユニチカ株式会社 | Polyamide ultrafilter membrane having organic solvent resistance, and method for manufacturing the same |
Also Published As
Publication number | Publication date |
---|---|
JPS6151928B2 (en) | 1986-11-11 |
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