JPS5590616A - Production of hollow acrylonitrile fiber - Google Patents
Production of hollow acrylonitrile fiberInfo
- Publication number
- JPS5590616A JPS5590616A JP16416678A JP16416678A JPS5590616A JP S5590616 A JPS5590616 A JP S5590616A JP 16416678 A JP16416678 A JP 16416678A JP 16416678 A JP16416678 A JP 16416678A JP S5590616 A JPS5590616 A JP S5590616A
- Authority
- JP
- Japan
- Prior art keywords
- solution
- hollow
- inorganic acid
- fed
- spinneret
- 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: To obtain the title hollow fibers having a uniform membrane thickness, and improved selective permeability, chemical resistance and stability, and tensile strength, by introducing an inorganic acid solution into the hollow part of a polymer solution in an inorganic acid extruded from an annular slit, and by coagulating the filamentary material in a bath via a space.
CONSTITUTION: An acrylonitrile polymer is dissolved in a solution of an inorganic acid, e.g. nitric acid, and the nesulting solution is fed from the tank 2 to the inlet 24 of the hollow spinneret 10 via the gear pump 4. A core liquid containing 30wt% or more of an inorganic acid, e.g. nitric acid, is fed from the gear pump 6 into the hollow-forming capillary 22 of the spinneret 10, and the solution 26 is then passed through a space ≥5cm and coagulated in the bath 12 to give the desired hollow fibers.
USE: Ultrafiltration membranes for industrial waste liquors, blood dialysis and filtration.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16416678A JPS5590616A (en) | 1978-12-23 | 1978-12-23 | Production of hollow acrylonitrile fiber |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16416678A JPS5590616A (en) | 1978-12-23 | 1978-12-23 | Production of hollow acrylonitrile fiber |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5590616A true JPS5590616A (en) | 1980-07-09 |
Family
ID=15787974
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16416678A Pending JPS5590616A (en) | 1978-12-23 | 1978-12-23 | Production of hollow acrylonitrile fiber |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5590616A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5887318A (en) * | 1981-11-18 | 1983-05-25 | Asahi Chem Ind Co Ltd | Hollow fiber made of acrylonitrile polymer |
JPS59223308A (en) * | 1983-06-01 | 1984-12-15 | Mitsubishi Rayon Co Ltd | Hydrophilic hollow acrylic yarn |
JPS61119708A (en) * | 1984-11-16 | 1986-06-06 | Toray Ind Inc | High-tenacity acrylic fiber and production thereof |
JPS63123403A (en) * | 1986-11-12 | 1988-05-27 | Toray Ind Inc | Polyacrylonitrile hollow yarn membrane and production thereof |
JPS63130103A (en) * | 1986-11-19 | 1988-06-02 | Toray Ind Inc | Polyacrylonitrile-base semipermeable membrane and manufacturing thereof |
-
1978
- 1978-12-23 JP JP16416678A patent/JPS5590616A/en active Pending
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5887318A (en) * | 1981-11-18 | 1983-05-25 | Asahi Chem Ind Co Ltd | Hollow fiber made of acrylonitrile polymer |
JPH0219205B2 (en) * | 1981-11-18 | 1990-05-01 | Asahi Chemical Ind | |
JPS59223308A (en) * | 1983-06-01 | 1984-12-15 | Mitsubishi Rayon Co Ltd | Hydrophilic hollow acrylic yarn |
JPH0346562B2 (en) * | 1983-06-01 | 1991-07-16 | Mitsubishi Rayon Co | |
JPS61119708A (en) * | 1984-11-16 | 1986-06-06 | Toray Ind Inc | High-tenacity acrylic fiber and production thereof |
JPS63123403A (en) * | 1986-11-12 | 1988-05-27 | Toray Ind Inc | Polyacrylonitrile hollow yarn membrane and production thereof |
JPS63130103A (en) * | 1986-11-19 | 1988-06-02 | Toray Ind Inc | Polyacrylonitrile-base semipermeable membrane and manufacturing thereof |
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