JPS5526262A - Production of hollow fiber of cellulosic derivative with high permeselectivity - Google Patents
Production of hollow fiber of cellulosic derivative with high permeselectivityInfo
- Publication number
- JPS5526262A JPS5526262A JP9932878A JP9932878A JPS5526262A JP S5526262 A JPS5526262 A JP S5526262A JP 9932878 A JP9932878 A JP 9932878A JP 9932878 A JP9932878 A JP 9932878A JP S5526262 A JPS5526262 A JP S5526262A
- Authority
- JP
- Japan
- Prior art keywords
- metal salt
- hollow fibers
- inorganic metal
- permeselectivity
- zinc
- 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.)
- Granted
Links
Landscapes
- External Artificial Organs (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
- Artificial Filaments (AREA)
Abstract
PURPOSE: A cellulosic derivative is incorporated with a small amount of inorganic metal salt and spun into hollow fibers, drawn at specific conditions to produce hollow fibers that are void free, of uniform quality, high strength, and high permeselectivity in the use of dialysis and ultre filtration.
CONSTITUTION: To a solution of cellulosic derivatives, preferably cellulose acetate, especially cellulose diacetate, is added 0.2W15 wt% of an inorganic metal salt and the mixture is extruded along with a core material from doubled pipes, coagulated into hollow fibers, which are drawn in water at 10W90°C. The inorganic metal salt is at least one of chlorate, perchlorate, sulfate, phosphate and thio cyanate of a metal selected from alkali, alkaline earth metals, copper and zinc, or at least one selected from halides and phosphates of zinc, copper, iron. The solvent is preferably dioxane or dimethylacetamide. The core material is, e.g., fatty acid ester, alcohol or hydrocarbon of low solidifying property.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9932878A JPS6043442B2 (en) | 1978-08-15 | 1978-08-15 | Manufacturing method of cellulose derivative hollow fiber with excellent permselectivity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9932878A JPS6043442B2 (en) | 1978-08-15 | 1978-08-15 | Manufacturing method of cellulose derivative hollow fiber with excellent permselectivity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5526262A true JPS5526262A (en) | 1980-02-25 |
| JPS6043442B2 JPS6043442B2 (en) | 1985-09-28 |
Family
ID=14244560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9932878A Expired JPS6043442B2 (en) | 1978-08-15 | 1978-08-15 | Manufacturing method of cellulose derivative hollow fiber with excellent permselectivity |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6043442B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5652333A (en) * | 1979-05-18 | 1981-05-11 | Omg Pessina Perobelli | Belt conveyor for conveying folded whole space for bookbinding |
| US4888147A (en) * | 1987-10-08 | 1989-12-19 | Mitsubishi Rayon Co., Ltd. | Process for production of cellulose acetate molding materials |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1795255B1 (en) | 1998-08-11 | 2009-11-04 | Daicel Chemical Industries, Ltd. | Cellulose acetate semipermeable membrane and process for producing same |
-
1978
- 1978-08-15 JP JP9932878A patent/JPS6043442B2/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5652333A (en) * | 1979-05-18 | 1981-05-11 | Omg Pessina Perobelli | Belt conveyor for conveying folded whole space for bookbinding |
| US4888147A (en) * | 1987-10-08 | 1989-12-19 | Mitsubishi Rayon Co., Ltd. | Process for production of cellulose acetate molding materials |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6043442B2 (en) | 1985-09-28 |
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