JPS5643413A - Production of hollow fiber - Google Patents
Production of hollow fiberInfo
- Publication number
- JPS5643413A JPS5643413A JP11758079A JP11758079A JPS5643413A JP S5643413 A JPS5643413 A JP S5643413A JP 11758079 A JP11758079 A JP 11758079A JP 11758079 A JP11758079 A JP 11758079A JP S5643413 A JPS5643413 A JP S5643413A
- Authority
- JP
- Japan
- Prior art keywords
- solution
- filamentary material
- hollow fiber
- cellulose ester
- liquid containing
- 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 a hollow fiber for an atrificial kidney, by extruding a cellulose ester solution into a filamentary form, extruding a solvent, an aqueous solution of a water-soluble salt or monoterpene or a liquid containing it into the inside of the filamentary material, and introducing the filamentary material into a coagulating solution.
CONSTITUTION: A cellulose ester is dissolved in an organic solvent, e.g. dimethylformamide, and the resultant solution is extruded through an annular slit into a filamentary material. Any one type selected from (A) a solvent for the cellulose ester and/or a swelling agent or a liquid containing at least one of them, (B) an aqueous solution containing a water-soluble salt in an amount sufficient to cause the phase separation from the solution and (C) a monoterpene (or a liquid containing it) is extruded into the inside of the filamentary material simultaneously with the extrusion. The filamentary material is then introduced into a coagulating solution of an alkaline liquid to give the aimed fiber.
EFFECT: The hollow fiber having a membrane thickness ≥10μ, an ultrafiltration ratio ≥5ml/hr.m2.mmHg and a permeability coefficient (K) to vitamin B12≥ 40×10-4cm/min can be obtained.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11758079A JPS5643413A (en) | 1979-09-13 | 1979-09-13 | Production of hollow fiber |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11758079A JPS5643413A (en) | 1979-09-13 | 1979-09-13 | Production of hollow fiber |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5643413A true JPS5643413A (en) | 1981-04-22 |
Family
ID=14715331
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11758079A Pending JPS5643413A (en) | 1979-09-13 | 1979-09-13 | Production of hollow fiber |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5643413A (en) |
-
1979
- 1979-09-13 JP JP11758079A patent/JPS5643413A/en active Pending
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