JPS55107505A - Production of hollow fiber - Google Patents
Production of hollow fiberInfo
- Publication number
- JPS55107505A JPS55107505A JP1529779A JP1529779A JPS55107505A JP S55107505 A JPS55107505 A JP S55107505A JP 1529779 A JP1529779 A JP 1529779A JP 1529779 A JP1529779 A JP 1529779A JP S55107505 A JPS55107505 A JP S55107505A
- Authority
- JP
- Japan
- Prior art keywords
- solution
- organic solvent
- water
- swelling agent
- acetamide
- 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 usable for hemodialysis, by incorporating acetamide as a swelling agent into a solution of a cellulose ester in a specific organic solvent, and by introducing a liquid into the hollow part of the filamentary material formed through extrusion of the solution from an annular slit.
CONSTITUTION: Acetamide as a swelling agent is incorporated into a solution of a cellulose ester (C) in an organic solvent, e.g. acetone or DMF, which is miscible with water and dissolves C. The solution is then extruded through an annular slit into a filamentary material, and a liquid is introduced into the hollow part inside the material. The water-miscible organic solvent and swelling agent are rapidly replaced by water in the coagulation bath on introduction into the bath to form desirable uniform pores in gelling, and easily removed in the rinsing step. Thus, the desired selective permeability can be imparted to the fiber.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1529779A JPS55107505A (en) | 1979-02-13 | 1979-02-13 | Production of hollow fiber |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1529779A JPS55107505A (en) | 1979-02-13 | 1979-02-13 | Production of hollow fiber |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55107505A true JPS55107505A (en) | 1980-08-18 |
Family
ID=11884885
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1529779A Pending JPS55107505A (en) | 1979-02-13 | 1979-02-13 | Production of hollow fiber |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55107505A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60168502A (en) * | 1984-02-10 | 1985-09-02 | Toyobo Co Ltd | Dialytic hollow yarn membrane |
JPS60193504A (en) * | 1984-03-15 | 1985-10-02 | Toyobo Co Ltd | Hollow fiber membrane for dialysis |
US5435955A (en) * | 1984-12-21 | 1995-07-25 | Ube Industries, Ltd. | Process of producing porous polypropylene hollow fiber and film |
-
1979
- 1979-02-13 JP JP1529779A patent/JPS55107505A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60168502A (en) * | 1984-02-10 | 1985-09-02 | Toyobo Co Ltd | Dialytic hollow yarn membrane |
JPS60193504A (en) * | 1984-03-15 | 1985-10-02 | Toyobo Co Ltd | Hollow fiber membrane for dialysis |
US5435955A (en) * | 1984-12-21 | 1995-07-25 | Ube Industries, Ltd. | Process of producing porous polypropylene hollow fiber and film |
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