JPS5423722A - Hollow porous isotactic polypropylene fibers and their production - Google Patents

Hollow porous isotactic polypropylene fibers and their production

Info

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
Application number
JP8641577A
Other languages
Japanese (ja)
Other versions
JPS6018329B2 (en
Inventor
Kazuo Kurita
Hiroshi Yasuda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyobo Co Ltd
Original Assignee
Toyobo Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toyobo Co Ltd filed Critical Toyobo Co Ltd
Priority to JP8641577A priority Critical patent/JPS6018329B2/en
Publication of JPS5423722A publication Critical patent/JPS5423722A/en
Publication of JPS6018329B2 publication Critical patent/JPS6018329B2/en
Expired legal-status Critical Current

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
JP8641577A 1977-07-18 1977-07-18 porous isotactic polypropylene hollow fiber Expired JPS6018329B2 (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (8)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
JPS52137026A (en) Microporous hollow fibers and their production
JPS5215627A (en) Porous polypropylene hollow fibers and a process for manufacturing the m
JPS5766114A (en) Porous polyethylene hollow fiber and its production
JPS53108882A (en) Back washing method for hollow filament membrane
DE3066996D1 (en) Porous semipermeable cellulose acetate membranes modified by ionic groups, process for their production and their use
JPS5560537A (en) Preparation of porous membrane
JPS5423722A (en) Hollow porous isotactic polypropylene fibers and their production
GB2035197B (en) Process for the prodoction of semipermeable hollow fibre membranes
JPS5468414A (en) Production of porous hollow polypropylene fibers
JPS5255719A (en) Hollow fibers having selective gas permeability and production thereof
JPS52144416A (en) Hollow cellulose fibers
JPS5386834A (en) Production of hollow fiber of ethylene-vinyl alcohol copolymer
JPS5220389A (en) Process for operating a reverse osmosis or ultrafiltration device
JPS51112917A (en) A process for producing hollow filaments for use in separation
JPS5439952A (en) Method of producing purified water
JPS57206378A (en) Filtering method of sake
JPS5338715A (en) Production of polypropylene porous hollow fiber
IL51531A0 (en) Process for reverse osmosis with hollow fibre membranes
JPS5247579A (en) Continuous separation method of mixed liquid
JPS5215482A (en) Gas separating and condensing process
JPS5319423A (en) Production of hollow fiber membranes
JPS5232985A (en) Process for the preparation of polyolefin
JPS53125981A (en) Separator for treating liquid
JPS5415476A (en) Blood plasma-phobic film and method of producing same
JPS57171403A (en) Removal of pyrogen in water