JPS54120735A - Manufacture of porous hollow polypropylene fibers - Google Patents
Manufacture of porous hollow polypropylene fibersInfo
- Publication number
- JPS54120735A JPS54120735A JP2802578A JP2802578A JPS54120735A JP S54120735 A JPS54120735 A JP S54120735A JP 2802578 A JP2802578 A JP 2802578A JP 2802578 A JP2802578 A JP 2802578A JP S54120735 A JPS54120735 A JP S54120735A
- Authority
- JP
- Japan
- Prior art keywords
- fibers
- hollow
- undrawn
- dimensional stability
- manufacture
- 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 usable for medical treatment, separation, and concentration, having improved uniformity and dimensional stability, by using undrawn hollow polypropylene fibers prepared under specific conditions.
CONSTITUTION: Polypropylene having a melt index of 1W40 at the spinning temperature is spun through a hollow fiber spinneret at a temperatur ranging from the melting point to 210°C and a spinning draft of 30W1000 into fibers. The undrawn fibers thus obtained are drawn to form porous fibers, which are heat-set at 80W 165°C.
EFFECT: Even porous hollow fibers of coarse denier having an inside diameter> 100μ, improved uniform porous structure, high gas permeability, and dimensional stability can be obtained.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2802578A JPS54120735A (en) | 1978-03-10 | 1978-03-10 | Manufacture of porous hollow polypropylene fibers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2802578A JPS54120735A (en) | 1978-03-10 | 1978-03-10 | Manufacture of porous hollow polypropylene fibers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54120735A true JPS54120735A (en) | 1979-09-19 |
Family
ID=12237199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2802578A Pending JPS54120735A (en) | 1978-03-10 | 1978-03-10 | Manufacture of porous hollow polypropylene fibers |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54120735A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0147849A2 (en) * | 1983-12-28 | 1985-07-10 | Ube Industries, Ltd. | Process of producing porous thermoplastic resin article |
| JPS60139808A (en) * | 1983-12-28 | 1985-07-24 | Ube Ind Ltd | Production of porous hollow fiber of polypropylene |
| JPS61146811A (en) * | 1984-12-21 | 1986-07-04 | Ube Ind Ltd | Production of porous hollow fiber of thermoplastic resin |
| KR20020070703A (en) * | 2001-03-02 | 2002-09-11 | 주식회사 한일아셈 | polypropylene hollow fiber membrane for gas separation and method producing the same |
-
1978
- 1978-03-10 JP JP2802578A patent/JPS54120735A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0147849A2 (en) * | 1983-12-28 | 1985-07-10 | Ube Industries, Ltd. | Process of producing porous thermoplastic resin article |
| JPS60139808A (en) * | 1983-12-28 | 1985-07-24 | Ube Ind Ltd | Production of porous hollow fiber of polypropylene |
| JPS6329007B2 (en) * | 1983-12-28 | 1988-06-10 | Ube Industries | |
| JPS61146811A (en) * | 1984-12-21 | 1986-07-04 | Ube Ind Ltd | Production of porous hollow fiber of thermoplastic resin |
| JPH0262604B2 (en) * | 1984-12-21 | 1990-12-26 | Ube Industries | |
| KR20020070703A (en) * | 2001-03-02 | 2002-09-11 | 주식회사 한일아셈 | polypropylene hollow fiber membrane for gas separation and method producing the same |
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