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JPS5560537A - Preparation of porous membrane - Google Patents

Preparation of porous membrane

Info

Publication number
JPS5560537A
JPS5560537A JP13250178A JP13250178A JPS5560537A JP S5560537 A JPS5560537 A JP S5560537A JP 13250178 A JP13250178 A JP 13250178A JP 13250178 A JP13250178 A JP 13250178A JP S5560537 A JPS5560537 A JP S5560537A
Authority
JP
Japan
Prior art keywords
paraffin
polyolefin resin
water
preparation
extruded
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
JP13250178A
Other languages
Japanese (ja)
Other versions
JPS6134736B2 (en
Inventor
Hideharu Sasaki
Kenko Yamada
Shizuo Azuma
Gen Kurisu
Shoji Kawase
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.)
Teijin Ltd
Original Assignee
Teijin 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 Teijin Ltd filed Critical Teijin Ltd
Priority to JP13250178A priority Critical patent/JPS5560537A/en
Publication of JPS5560537A publication Critical patent/JPS5560537A/en
Publication of JPS6134736B2 publication Critical patent/JPS6134736B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

PURPOSE: To obtain a porous membrance usable for filter medium having micropores, by quenching an extruded molten mixture of a polyolefin resin and paraffin in water.
CONSTITUTION: A kneaded mixture of (A) 90W20wt%, preferably 80W40wt%, of a polyolefin resin, e.g. polypropylene, (B) 10W80wt%, preferably 20W60wt%, of paraffin, preferably melting at 35W80°C, is extruded through a die into a film, sheet, or hollow article, which is then quenched and solidified in water at 50°C or below, preferably 5W40°C. The article is then treated with an organic solvent to extract the paraffin.
USE: Separators for various batteries, membranes for gas separation, and film substrates.
COPYRIGHT: (C)1980,JPO&Japio
JP13250178A 1978-10-30 1978-10-30 Preparation of porous membrane Granted JPS5560537A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13250178A JPS5560537A (en) 1978-10-30 1978-10-30 Preparation of porous membrane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13250178A JPS5560537A (en) 1978-10-30 1978-10-30 Preparation of porous membrane

Publications (2)

Publication Number Publication Date
JPS5560537A true JPS5560537A (en) 1980-05-07
JPS6134736B2 JPS6134736B2 (en) 1986-08-09

Family

ID=15082833

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13250178A Granted JPS5560537A (en) 1978-10-30 1978-10-30 Preparation of porous membrane

Country Status (1)

Country Link
JP (1) JPS5560537A (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56501839A (en) * 1979-12-28 1981-12-17
JPS5964640A (en) * 1982-09-09 1984-04-12 ミネソタ　マイニング　アンド　マニユフアクチユアリング　コンパニー Microporous sheet material
JPS6190705A (en) * 1984-10-09 1986-05-08 Terumo Corp Hollow yarn membrane and its production
JPS6190704A (en) * 1984-10-09 1986-05-08 Terumo Corp Hollow yarn membrane
JPS6190707A (en) * 1984-10-09 1986-05-08 Terumo Corp Production of hollow yarn membrane
JPS61114701A (en) * 1984-11-09 1986-06-02 Terumo Corp Flat film type permeable membrane and preparation thereof
JPS61114702A (en) * 1984-11-09 1986-06-02 Terumo Corp Flat film type permeable membrane and preparation thereof
JPS6281431A (en) * 1985-10-03 1987-04-14 Keinosuke Isono Resin molding and its production
JPH03168229A (en) * 1989-11-29 1991-07-22 Idemitsu Petrochem Co Ltd Porous film or sheet and production thereof
JPH03168230A (en) * 1989-11-29 1991-07-22 Idemitsu Petrochem Co Ltd Porous film or sheet and production thereof
JPH0616862A (en) * 1992-05-18 1994-01-25 Tonen Corp Polyethylene microporous membrane
JP2001087631A (en) * 1999-09-21 2001-04-03 Asahi Kasei Corp Method for preparing film by melt spinning
JP2001087633A (en) * 1999-09-21 2001-04-03 Asahi Kasei Corp Method for preparing hollow fibrous porous film by melt spinning

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0289815U (en) * 1988-12-27 1990-07-17

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3423491A (en) * 1964-09-02 1969-01-21 Dow Chemical Co Permselective hollow fibers and method of making

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3423491A (en) * 1964-09-02 1969-01-21 Dow Chemical Co Permselective hollow fibers and method of making

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56501839A (en) * 1979-12-28 1981-12-17
JPS5964640A (en) * 1982-09-09 1984-04-12 ミネソタ　マイニング　アンド　マニユフアクチユアリング　コンパニー Microporous sheet material
JPH0439370B2 (en) * 1984-10-09 1992-06-29
JPS6190705A (en) * 1984-10-09 1986-05-08 Terumo Corp Hollow yarn membrane and its production
JPS6190704A (en) * 1984-10-09 1986-05-08 Terumo Corp Hollow yarn membrane
JPS6190707A (en) * 1984-10-09 1986-05-08 Terumo Corp Production of hollow yarn membrane
JPH0513687B2 (en) * 1984-10-09 1993-02-23 Terumo Corp
JPH0439371B2 (en) * 1984-10-09 1992-06-29
JPH0513689B2 (en) * 1984-11-09 1993-02-23 Terumo Corp
JPS61114702A (en) * 1984-11-09 1986-06-02 Terumo Corp Flat film type permeable membrane and preparation thereof
JPH0513688B2 (en) * 1984-11-09 1993-02-23 Terumo Corp
JPS61114701A (en) * 1984-11-09 1986-06-02 Terumo Corp Flat film type permeable membrane and preparation thereof
JPS6281431A (en) * 1985-10-03 1987-04-14 Keinosuke Isono Resin molding and its production
JPH0554856B2 (en) * 1985-10-03 1993-08-13 Shinsozai Sogo Kenkyusho Kk
JPH03168230A (en) * 1989-11-29 1991-07-22 Idemitsu Petrochem Co Ltd Porous film or sheet and production thereof
JPH03168229A (en) * 1989-11-29 1991-07-22 Idemitsu Petrochem Co Ltd Porous film or sheet and production thereof
JPH0616862A (en) * 1992-05-18 1994-01-25 Tonen Corp Polyethylene microporous membrane
JP2001087631A (en) * 1999-09-21 2001-04-03 Asahi Kasei Corp Method for preparing film by melt spinning
JP2001087633A (en) * 1999-09-21 2001-04-03 Asahi Kasei Corp Method for preparing hollow fibrous porous film by melt spinning

Also Published As

Publication number Publication date
JPS6134736B2 (en) 1986-08-09

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