JPS57210010A - Production of porous hollow fiber membrane - Google Patents
Production of porous hollow fiber membraneInfo
- Publication number
- JPS57210010A JPS57210010A JP9372381A JP9372381A JPS57210010A JP S57210010 A JPS57210010 A JP S57210010A JP 9372381 A JP9372381 A JP 9372381A JP 9372381 A JP9372381 A JP 9372381A JP S57210010 A JPS57210010 A JP S57210010A
- Authority
- JP
- Japan
- Prior art keywords
- hollow fiber
- calcium carbonate
- fiber membrane
- porous hollow
- production
- 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
Abstract
PURPOSE: The spinning material composed of cellulose acetate and calcium carbonate is made into fiber and the calcium carbonate is removed by extraction to produce the titled porous hollow fiber membrane that is suitable to plasmapheresis and applicable to disease treatment and production of blood preparations.
CONSTITUTION: Cellulose acetate of 50W62% acetylation degree and 80W400 polymerization degree and another polymer such as polymethacrylic acid are dissolved in a solvent to form a solution of 10W20wt% concentration. Calcium carbonate, preferably its fine powder of less than 1 micron average particle size is added to the above solution by 30W200%, based on the total polymers and the resultant dope is made into hollow fiber by the wet method. Then, the calcium carbonate is removed by dipping the hollow fiber in a 1W10% hydrochloric acid solution to give the objective porous hollow fiber membrane.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9372381A JPS57210010A (en) | 1981-06-19 | 1981-06-19 | Production of porous hollow fiber membrane |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9372381A JPS57210010A (en) | 1981-06-19 | 1981-06-19 | Production of porous hollow fiber membrane |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57210010A true JPS57210010A (en) | 1982-12-23 |
Family
ID=14090326
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9372381A Pending JPS57210010A (en) | 1981-06-19 | 1981-06-19 | Production of porous hollow fiber membrane |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57210010A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60806A (en) * | 1983-06-17 | 1985-01-05 | Teijin Ltd | Manufacture of plasma albumin permeable hollow yarn membrane |
JPS63278503A (en) * | 1987-05-08 | 1988-11-16 | Kanegafuchi Chem Ind Co Ltd | Filtering adsorption material and its usage |
-
1981
- 1981-06-19 JP JP9372381A patent/JPS57210010A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60806A (en) * | 1983-06-17 | 1985-01-05 | Teijin Ltd | Manufacture of plasma albumin permeable hollow yarn membrane |
JPH0318492B2 (en) * | 1983-06-17 | 1991-03-12 | Teijin Ltd | |
JPS63278503A (en) * | 1987-05-08 | 1988-11-16 | Kanegafuchi Chem Ind Co Ltd | Filtering adsorption material and its usage |
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