JPS57119809A - Production of ultrafiltration membrane - Google Patents
Production of ultrafiltration membraneInfo
- Publication number
- JPS57119809A JPS57119809A JP56006722A JP672281A JPS57119809A JP S57119809 A JPS57119809 A JP S57119809A JP 56006722 A JP56006722 A JP 56006722A JP 672281 A JP672281 A JP 672281A JP S57119809 A JPS57119809 A JP S57119809A
- Authority
- JP
- Japan
- Prior art keywords
- water
- solvent
- production
- cyclohexanone
- ultrafiltration membrane
- 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)
Abstract
PURPOSE: To obtain an ultrafiltration membrane of equally superior performance in the production of a semipermeable membrane for ultrafiltration used for filtration type artificial kidney by changing a part of the solvent compositon of cellulose acetate.
CONSTITUTION: In a known method of casting and filming cellulose acetate by using mixed solvents of dimethylformamide, acetone, water and cyclohexanone, cyclohexanone is substituted with a polar solvent having 2W50% solubility to water ar oridinary temp. Such solvents are, for example, butyl lactate, furfural, methyl ethyl ketone, 2-methoxyethyl acetate, etc. This solvent is added to the mixed solvents at an approximately equal weight to that of the water therein.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56006722A JPS57119809A (en) | 1981-01-19 | 1981-01-19 | Production of ultrafiltration membrane |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56006722A JPS57119809A (en) | 1981-01-19 | 1981-01-19 | Production of ultrafiltration membrane |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57119809A true JPS57119809A (en) | 1982-07-26 |
Family
ID=11646145
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56006722A Pending JPS57119809A (en) | 1981-01-19 | 1981-01-19 | Production of ultrafiltration membrane |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57119809A (en) |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5214235A (en) * | 1975-07-18 | 1977-02-03 | Osaka Gas Co Ltd | Burner flame length control system |
JPS5382670A (en) * | 1976-12-29 | 1978-07-21 | Toyobo Co Ltd | Preparation of semipermeable membrane |
JPS55134608A (en) * | 1979-04-06 | 1980-10-20 | Daicel Chem Ind Ltd | Preparation of semipermeable membrane with selective permeability |
-
1981
- 1981-01-19 JP JP56006722A patent/JPS57119809A/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5214235A (en) * | 1975-07-18 | 1977-02-03 | Osaka Gas Co Ltd | Burner flame length control system |
JPS5382670A (en) * | 1976-12-29 | 1978-07-21 | Toyobo Co Ltd | Preparation of semipermeable membrane |
JPS55134608A (en) * | 1979-04-06 | 1980-10-20 | Daicel Chem Ind Ltd | Preparation of semipermeable membrane with selective permeability |
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