JPS5423722A - Hollow porous isotactic polypropylene fibers and their production - Google Patents
Hollow porous isotactic polypropylene fibers and their productionInfo
- Publication number
- JPS5423722A JPS5423722A JP8641577A JP8641577A JPS5423722A JP S5423722 A JPS5423722 A JP S5423722A JP 8641577 A JP8641577 A JP 8641577A JP 8641577 A JP8641577 A JP 8641577A JP S5423722 A JPS5423722 A JP S5423722A
- Authority
- JP
- Japan
- Prior art keywords
- isotactic polypropylene
- hollow porous
- production
- polypropylene fibers
- porous isotactic
- 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
- Separation Using Semi-Permeable Membranes (AREA)
- Artificial Filaments (AREA)
- Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
Abstract
PURPOSE: To obtain hollow porous fibers usable for gas separation, ultrafiltration, or reverse osmosis supports, having an average pore size of 400 W 700Å, by melt extruding isotactic polypropylene through a specific nozzle, and by taking off at a high speed.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8641577A JPS6018329B2 (en) | 1977-07-18 | 1977-07-18 | porous isotactic polypropylene hollow fiber |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8641577A JPS6018329B2 (en) | 1977-07-18 | 1977-07-18 | porous isotactic polypropylene hollow fiber |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP25475984A Division JPS6054403B2 (en) | 1984-11-30 | 1984-11-30 | Method for producing porous isotactic polypropylene hollow fiber |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5423722A true JPS5423722A (en) | 1979-02-22 |
JPS6018329B2 JPS6018329B2 (en) | 1985-05-09 |
Family
ID=13886233
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8641577A Expired JPS6018329B2 (en) | 1977-07-18 | 1977-07-18 | porous isotactic polypropylene hollow fiber |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6018329B2 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54173510U (en) * | 1978-05-27 | 1979-12-07 | ||
JPS5910624A (en) * | 1982-07-10 | 1984-01-20 | Masao Ozawa | Construction of basement |
JPS59199808A (en) * | 1982-02-18 | 1984-11-13 | ヘキスト・セラニーズ・コーポレーション | Microporous hollow fiber and production thereof |
EP0147849A2 (en) * | 1983-12-28 | 1985-07-10 | Ube Industries, Ltd. | Process of producing porous thermoplastic resin article |
JPH108476A (en) * | 1996-06-19 | 1998-01-13 | N I C Eng Kk | Execution method for underground structure |
US7174024B1 (en) | 1999-06-11 | 2007-02-06 | Fps, Inc. | Flat acoustic conversion device |
-
1977
- 1977-07-18 JP JP8641577A patent/JPS6018329B2/en not_active Expired
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS54173510U (en) * | 1978-05-27 | 1979-12-07 | ||
JPS59199808A (en) * | 1982-02-18 | 1984-11-13 | ヘキスト・セラニーズ・コーポレーション | Microporous hollow fiber and production thereof |
JPH0424444B2 (en) * | 1982-02-18 | 1992-04-27 | Hoechst Celanese Corp | |
JPS5910624A (en) * | 1982-07-10 | 1984-01-20 | Masao Ozawa | Construction of basement |
JPS6134536B2 (en) * | 1982-07-10 | 1986-08-08 | Masao Ozawa | |
EP0147849A2 (en) * | 1983-12-28 | 1985-07-10 | Ube Industries, Ltd. | Process of producing porous thermoplastic resin article |
JPH108476A (en) * | 1996-06-19 | 1998-01-13 | N I C Eng Kk | Execution method for underground structure |
US7174024B1 (en) | 1999-06-11 | 2007-02-06 | Fps, Inc. | Flat acoustic conversion device |
Also Published As
Publication number | Publication date |
---|---|
JPS6018329B2 (en) | 1985-05-09 |
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