JPS55112309A - Production of hollow fiber - Google Patents
Production of hollow fiberInfo
- Publication number
- JPS55112309A JPS55112309A JP1807179A JP1807179A JPS55112309A JP S55112309 A JPS55112309 A JP S55112309A JP 1807179 A JP1807179 A JP 1807179A JP 1807179 A JP1807179 A JP 1807179A JP S55112309 A JPS55112309 A JP S55112309A
- Authority
- JP
- Japan
- Prior art keywords
- solution
- hollow fiber
- cellulose ester
- acetone
- cyclic ether
- 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)
- Artificial Filaments (AREA)
Abstract
PURPOSE: To produce a uniform hollow fiber for hemodialysis free from huge voids, by extruding a solution of a cellulose ester in acetone/a cyclic ether mixture through an annular orifice, and by introducing a specific core liquid into the hollow part.
CONSTITUTION: A cellulose ester, e.g. cellulose acetate, is dissolved in a mixture of acetone and a cyclic ether, breferably 1,4-dioxane or tetrahydrofuran, to form a 15W28wt% solution. The solution is then extruded through an annular orifice into a filamentary material, and at least one of (A) a cellulose ester solution and/or swelling agent, (B) an aqeous solution of a salt to separate or salt out the solvent and water into different phases, or (C) a monoterpene is introduced into the hollow part to give the desired hollow fiber.
USE: Selective permeation membranes, e.g. ultrafiltration, reverse osmosis, and gas separation.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1807179A JPS55112309A (en) | 1979-02-19 | 1979-02-19 | Production of hollow fiber |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1807179A JPS55112309A (en) | 1979-02-19 | 1979-02-19 | Production of hollow fiber |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55112309A true JPS55112309A (en) | 1980-08-29 |
Family
ID=11961425
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1807179A Pending JPS55112309A (en) | 1979-02-19 | 1979-02-19 | Production of hollow fiber |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55112309A (en) |
-
1979
- 1979-02-19 JP JP1807179A patent/JPS55112309A/en active Pending
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