JPS542980A - Composite membrane having selective permeability and its preparation - Google Patents

Composite membrane having selective permeability and its preparation

Info

Publication number
JPS542980A
JPS542980A JP6784777A JP6784777A JPS542980A JP S542980 A JPS542980 A JP S542980A JP 6784777 A JP6784777 A JP 6784777A JP 6784777 A JP6784777 A JP 6784777A JP S542980 A JPS542980 A JP S542980A
Authority
JP
Japan
Prior art keywords
composite membrane
selective permeability
preparation
little
permeability
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
JP6784777A
Other languages
Japanese (ja)
Other versions
JPS617844B2 (en
Inventor
Yutaka Takeya
Tomoyoshi Ono
Yuzuru Hayashi
Takeyuki Kawaguchi
Ko Mori
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 JP6784777A priority Critical patent/JPS542980A/en
Priority to US05/912,547 priority patent/US4260652A/en
Priority to CA304,993A priority patent/CA1128684A/en
Priority to GB7826539A priority patent/GB2000163B/en
Priority to DE2825247A priority patent/DE2825247C3/en
Priority to FR787817122A priority patent/FR2393594A1/en
Publication of JPS542980A publication Critical patent/JPS542980A/en
Publication of JPS617844B2 publication Critical patent/JPS617844B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

PURPOSE: To obtain the composite membrane having excellent selective permeability, at which the consolidation is little and the lowering of water permeability is little even if the operation is continued at high pressure while being contacted with a concentrated aqueous solution, by forming a thin film of the polymer consisting mainly of polybenzimidazolone containing a specified bonding unit on a porous carrier.
COPYRIGHT: (C)1979,JPO&Japio
JP6784777A 1977-06-08 1977-06-10 Composite membrane having selective permeability and its preparation Granted JPS542980A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP6784777A JPS542980A (en) 1977-06-10 1977-06-10 Composite membrane having selective permeability and its preparation
US05/912,547 US4260652A (en) 1977-06-08 1978-06-05 Preparation of permselective composite membrane
CA304,993A CA1128684A (en) 1977-06-08 1978-06-08 Preparation of permselective composite membrane
GB7826539A GB2000163B (en) 1977-06-08 1978-06-08 Permselective composite membrane and process for its preparation
DE2825247A DE2825247C3 (en) 1977-06-08 1978-06-08 Permselective composite membrane, process for its preparation and polymer solution for carrying out the process
FR787817122A FR2393594A1 (en) 1977-06-08 1978-06-08 PREPARATION OF A SEMI-PERMEABLE COMPOSITE MEMBRANE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6784777A JPS542980A (en) 1977-06-10 1977-06-10 Composite membrane having selective permeability and its preparation

Publications (2)

Publication Number Publication Date
JPS542980A true JPS542980A (en) 1979-01-10
JPS617844B2 JPS617844B2 (en) 1986-03-10

Family

ID=13356747

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6784777A Granted JPS542980A (en) 1977-06-08 1977-06-10 Composite membrane having selective permeability and its preparation

Country Status (1)

Country Link
JP (1) JPS542980A (en)

Also Published As

Publication number Publication date
JPS617844B2 (en) 1986-03-10

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