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JPS5712801A - Dynamic membrane for water treatment - Google Patents

Dynamic membrane for water treatment

Info

Publication number
JPS5712801A
JPS5712801A JP8717380A JP8717380A JPS5712801A JP S5712801 A JPS5712801 A JP S5712801A JP 8717380 A JP8717380 A JP 8717380A JP 8717380 A JP8717380 A JP 8717380A JP S5712801 A JPS5712801 A JP S5712801A
Authority
JP
Japan
Prior art keywords
acid
organic
dynamic membrane
water treatment
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.)
Pending
Application number
JP8717380A
Other languages
Japanese (ja)
Inventor
Susumu Takada
Noriyoshi Nanba
Shoichi Wakabayashi
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.)
TDK Corp
Original Assignee
TDK Corp
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 TDK Corp filed Critical TDK Corp
Priority to JP8717380A priority Critical patent/JPS5712801A/en
Publication of JPS5712801A publication Critical patent/JPS5712801A/en
Pending legal-status Critical Current

Links

Landscapes

  • Polymers With Sulfur, Phosphorus Or Metals In The Main Chain (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

PURPOSE: To obtain a new dynamic membrane exhibiting a high desalting property on an acid side from an aromatic polyamido acid derived from pyromellitic acid and an organic diamino compound.
CONSTITUTION: By the polyaddition reaction of, e.g., pyromellitic anhydride with an organic polyamino compound, an aromatic polyamido acid having a repeating unit of the formula (where A is a divalent residual group derived by removing one H atom each of H atoms bound to two amino groups in an organic polyamino compound) is obtained. The polyamido acid thus obtained is dissolved in an aqueous alkaline solution, and the solution is repeatedly and forcibly made to permeate into a porous support material so as to form membranes in fine pores.
COPYRIGHT: (C)1982,JPO&Japio
JP8717380A 1980-06-26 1980-06-26 Dynamic membrane for water treatment Pending JPS5712801A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8717380A JPS5712801A (en) 1980-06-26 1980-06-26 Dynamic membrane for water treatment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8717380A JPS5712801A (en) 1980-06-26 1980-06-26 Dynamic membrane for water treatment

Publications (1)

Publication Number Publication Date
JPS5712801A true JPS5712801A (en) 1982-01-22

Family

ID=13907588

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8717380A Pending JPS5712801A (en) 1980-06-26 1980-06-26 Dynamic membrane for water treatment

Country Status (1)

Country Link
JP (1) JPS5712801A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021153147A1 (en) * 2020-01-30 2021-08-05 東レ株式会社 Resin composition, laminate and method for producing same, electrode, secondary battery, and electric double-layer capacitor

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021153147A1 (en) * 2020-01-30 2021-08-05 東レ株式会社 Resin composition, laminate and method for producing same, electrode, secondary battery, and electric double-layer capacitor

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