JPS5643414A - Production of hollow fiber - Google Patents
Production of hollow fiberInfo
- Publication number
- JPS5643414A JPS5643414A JP11758179A JP11758179A JPS5643414A JP S5643414 A JPS5643414 A JP S5643414A JP 11758179 A JP11758179 A JP 11758179A JP 11758179 A JP11758179 A JP 11758179A JP S5643414 A JPS5643414 A JP S5643414A
- Authority
- JP
- Japan
- Prior art keywords
- solution
- component
- swelling agent
- filamentary material
- core liquid
- 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 obtain the titled fiber useful for a hemodialyzer etc., having improved dialyzing property without voids, by introducing a specific core liquid into the inner hollow part of a filamentary material in extruding a solution of a cellulose ester in an organic solvent of specific concentration containing a swelling agent through an annular slit.
CONSTITUTION: (A) A cellulose ester, e.g. cellulose acetate, is dissolved in (B) an organic solvent, e.g. acetone, and (C) a swelling agent, e.g. formamide, for the component (A) is added to prepare a solution containing 25wt% or more the component (A). The resultant solution is then extruded through an annular slit into a filamentary material. (D) One type selected from (i) a solvent for the component (A) and/or a swelling agent or a liquid containing at least one of them, (ii) an aqueous solution containing a water-soluble salt in an amount sufficient to cause the phase separation from the solution consisting of the components (A), (B) and (C) and (iii) a monoterpene or a solution containing it as a core liquid is introduced into the inner hollow part of the filamentary material as a core liquid to give the aimed hollow fiber.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11758179A JPS5643414A (en) | 1979-09-13 | 1979-09-13 | Production of hollow fiber |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11758179A JPS5643414A (en) | 1979-09-13 | 1979-09-13 | Production of hollow fiber |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5643414A true JPS5643414A (en) | 1981-04-22 |
Family
ID=14715357
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11758179A Pending JPS5643414A (en) | 1979-09-13 | 1979-09-13 | Production of hollow fiber |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5643414A (en) |
-
1979
- 1979-09-13 JP JP11758179A patent/JPS5643414A/en active Pending
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