JPS551887A - Preparing membrane by removing component from multiple component material - Google Patents
Preparing membrane by removing component from multiple component materialInfo
- Publication number
- JPS551887A JPS551887A JP4317879A JP4317879A JPS551887A JP S551887 A JPS551887 A JP S551887A JP 4317879 A JP4317879 A JP 4317879A JP 4317879 A JP4317879 A JP 4317879A JP S551887 A JPS551887 A JP S551887A
- Authority
- JP
- Japan
- Prior art keywords
- homopolymer
- copolymer
- component
- hydrophilic
- mixed
- 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
Landscapes
- Separation Using Semi-Permeable Membranes (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
PURPOSE: To provide a semipermeable membrane with good salt exclusion and solvent permeability, a polymer consisting of hydrophilic polymer and hydrophobic or crystalline hydrophilic polymer is mixed with a specific amount of hydrophilic homopolymer to form a film or the like, and the homopolymer is removed by extraction.
CONSTITUTION: A crystalline hydrophilic polymer component such as poly ε capramide and hydrophilic copolymer component such as polyacrylamide are blocked or grafted to form a copolymer. The resulted copolymer is mixed with a homopolymer such as polyacrylamide so that the total hydrophilic polymer component becomes in 20 to 80 molar % and the mixed polymer is formed into a flat film or hollow fibers. Then, the homopolymer is extracted by use of an agent such as warm water that is inactive to the copolymer. The process, thus, provides a flat film or hollow fibers useful for dialysis, ultrafilteration, or back osmosis equipments.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4317879A JPS551887A (en) | 1979-04-09 | 1979-04-09 | Preparing membrane by removing component from multiple component material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4317879A JPS551887A (en) | 1979-04-09 | 1979-04-09 | Preparing membrane by removing component from multiple component material |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3279072A Division JPS5424987B2 (en) | 1972-04-01 | 1972-04-01 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS551887A true JPS551887A (en) | 1980-01-09 |
JPS5752084B2 JPS5752084B2 (en) | 1982-11-05 |
Family
ID=12656622
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4317879A Granted JPS551887A (en) | 1979-04-09 | 1979-04-09 | Preparing membrane by removing component from multiple component material |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS551887A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5892411A (en) * | 1981-11-30 | 1983-06-01 | Asahi Medical Kk | Semi-permeable membrane and module using same |
JPS59193102A (en) * | 1983-04-16 | 1984-11-01 | Asahi Medical Kk | Selectively permeable hollow yarn |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59218793A (en) * | 1983-05-27 | 1984-12-10 | 富士通株式会社 | Method of mounting dip type ic |
JPS619796U (en) * | 1984-06-25 | 1986-01-21 | 東京山一電機株式会社 | integrated circuit socket |
-
1979
- 1979-04-09 JP JP4317879A patent/JPS551887A/en active Granted
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5892411A (en) * | 1981-11-30 | 1983-06-01 | Asahi Medical Kk | Semi-permeable membrane and module using same |
JPH0143562B2 (en) * | 1981-11-30 | 1989-09-21 | Asahi Medical Co | |
JPS59193102A (en) * | 1983-04-16 | 1984-11-01 | Asahi Medical Kk | Selectively permeable hollow yarn |
JPH0475052B2 (en) * | 1983-04-16 | 1992-11-27 |
Also Published As
Publication number | Publication date |
---|---|
JPS5752084B2 (en) | 1982-11-05 |
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