JPS56157435A - Preparation of gas separating membrane - Google Patents

Preparation of gas separating membrane

Info

Publication number
JPS56157435A
JPS56157435A JP5947280A JP5947280A JPS56157435A JP S56157435 A JPS56157435 A JP S56157435A JP 5947280 A JP5947280 A JP 5947280A JP 5947280 A JP5947280 A JP 5947280A JP S56157435 A JPS56157435 A JP S56157435A
Authority
JP
Japan
Prior art keywords
membrane
gas separating
liquid
biphenyl
phenolic compound
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
JP5947280A
Other languages
Japanese (ja)
Other versions
JPS6251129B2 (en
Inventor
Hiroshi Makino
Yoshihiro Kusuki
Takashi Harada
Mitsufumi Shimazaki
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.)
Ube Corp
Original Assignee
Ube Industries 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 Ube Industries Ltd filed Critical Ube Industries Ltd
Priority to JP5947280A priority Critical patent/JPS56157435A/en
Publication of JPS56157435A publication Critical patent/JPS56157435A/en
Publication of JPS6251129B2 publication Critical patent/JPS6251129B2/ja
Granted legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To obtain a gas separating membrane having excellent gas permeating performance, gas separating performance and, in particular, hydrogen permeating performance, by solidifying a thin membrane of a solution which dissolves a specific polyimide in the molten liquid of a phenolic compound in a solidifying liquid and thereafter drying said membrane.
CONSTITUTION: There is formed a liquid thin membrane of a polyimide composition which dissolves a polyimide containing 90% or more of repeating units represented by the formula where R is a bivalent residual group of aromatic diamines free from amino group in the molten liquid of a phenolic compound. Subsequently, the thin membrane is dipped to solidify in a solidifying liquid, and thereafter the membrane is dried to remove moisture and the phenolic compound. Thus the titled gas separating membrane is obtained. The above-mentioned polyimides are obtained by polymerization and imide formation reactions from biphenyl-tetracarboxylic acids such as 3,3',4,4'-biphenyl-tetracarboxylic acid and 2,3,3',4'-biphenyl-tetracarboxylic acid components and aromatic diamines represented by H2N-R-NH2.
COPYRIGHT: (C)1981,JPO&Japio
JP5947280A 1980-05-07 1980-05-07 Preparation of gas separating membrane Granted JPS56157435A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5947280A JPS56157435A (en) 1980-05-07 1980-05-07 Preparation of gas separating membrane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5947280A JPS56157435A (en) 1980-05-07 1980-05-07 Preparation of gas separating membrane

Publications (2)

Publication Number Publication Date
JPS56157435A true JPS56157435A (en) 1981-12-04
JPS6251129B2 JPS6251129B2 (en) 1987-10-28

Family

ID=13114279

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5947280A Granted JPS56157435A (en) 1980-05-07 1980-05-07 Preparation of gas separating membrane

Country Status (1)

Country Link
JP (1) JPS56157435A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59115738A (en) * 1982-12-21 1984-07-04 Sumitomo Electric Ind Ltd Selective gas-permeable membrane and its manufacture
JPS6238207A (en) * 1985-08-09 1987-02-19 Agency Of Ind Science & Technol Manufacture of polyimide hollow yarn
JP2008241044A (en) * 1996-09-03 2008-10-09 Borgwarner Inc Ratchet one-way clutch assembly
JP2009228878A (en) * 2008-03-25 2009-10-08 Nsk Warner Kk Roller type one-way clutch

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59115738A (en) * 1982-12-21 1984-07-04 Sumitomo Electric Ind Ltd Selective gas-permeable membrane and its manufacture
JPS6336286B2 (en) * 1982-12-21 1988-07-19 Sumitomo Electric Industries
JPS6238207A (en) * 1985-08-09 1987-02-19 Agency Of Ind Science & Technol Manufacture of polyimide hollow yarn
JP2008241044A (en) * 1996-09-03 2008-10-09 Borgwarner Inc Ratchet one-way clutch assembly
JP2009228878A (en) * 2008-03-25 2009-10-08 Nsk Warner Kk Roller type one-way clutch

Also Published As

Publication number Publication date
JPS6251129B2 (en) 1987-10-28

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