JPS5580514A - Production of hollow fiber - Google Patents
Production of hollow fiberInfo
- Publication number
- JPS5580514A JPS5580514A JP15395078A JP15395078A JPS5580514A JP S5580514 A JPS5580514 A JP S5580514A JP 15395078 A JP15395078 A JP 15395078A JP 15395078 A JP15395078 A JP 15395078A JP S5580514 A JPS5580514 A JP S5580514A
- Authority
- JP
- Japan
- Prior art keywords
- salt
- fibers
- coagulation bath
- production
- hollow fiber
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
- B01D71/06—Organic material
- B01D71/08—Polysaccharides
- B01D71/10—Cellulose; Modified cellulose
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Artificial Filaments (AREA)
Abstract
PURPOSE: To obtain hollow fibers suitable for blood dialysis devices, ultrafiltration, and reverse osmosis, by controlling the osmostic pressure inside and outside the fibers with a coagulation bath containing a suitable amount of a salt to prevent the formation of pinholes in the fiber walls.
CONSTITUTION: A spinning solution comprising a cellulose derivative dissolved in an organic solvent is extruded through an annular slit into a filamentary material, and a core liquid containing a salt in a concentration enough to cause phase separation is introduced into the hollow part of the material at the same time. The fibers are then introduced into a coagulation bath comprising an equeous solution of a given amount of a salt.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15395078A JPS5580514A (en) | 1978-12-12 | 1978-12-12 | Production of hollow fiber |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15395078A JPS5580514A (en) | 1978-12-12 | 1978-12-12 | Production of hollow fiber |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5580514A true JPS5580514A (en) | 1980-06-17 |
Family
ID=15573606
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15395078A Pending JPS5580514A (en) | 1978-12-12 | 1978-12-12 | Production of hollow fiber |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5580514A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20210104854A1 (en) * | 2017-05-18 | 2021-04-08 | Shin-Etsu Polymer Co., Ltd. | Electrical connector and method for producing same |
-
1978
- 1978-12-12 JP JP15395078A patent/JPS5580514A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20210104854A1 (en) * | 2017-05-18 | 2021-04-08 | Shin-Etsu Polymer Co., Ltd. | Electrical connector and method for producing same |
US11637406B2 (en) * | 2017-05-18 | 2023-04-25 | Shin-Etsu Polymer Co., Ltd. | Electrical connector and method for producing same |
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