GB810391A - Improvements in and relating to ion-exchange membranes - Google Patents

Improvements in and relating to ion-exchange membranes

Info

Publication number
GB810391A
GB810391A GB1764756A GB1764756A GB810391A GB 810391 A GB810391 A GB 810391A GB 1764756 A GB1764756 A GB 1764756A GB 1764756 A GB1764756 A GB 1764756A GB 810391 A GB810391 A GB 810391A
Authority
GB
United Kingdom
Prior art keywords
ion
formaldehyde
sulphonated
cross
condensate
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.)
Expired
Application number
GB1764756A
Inventor
Theodore Roger Kressman
Stanley Cochran Smith
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.)
Permutit Co Ltd
Original Assignee
Permutit 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 Permutit Co Ltd filed Critical Permutit Co Ltd
Priority to GB1764756A priority Critical patent/GB810391A/en
Publication of GB810391A publication Critical patent/GB810391A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/20—Manufacture of shaped structures of ion-exchange resins
    • C08J5/22—Films, membranes or diaphragms
    • C08J5/2206—Films, membranes or diaphragms based on organic and/or inorganic macromolecular compounds
    • C08J5/2275—Heterogeneous membranes
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2361/00—Characterised by the use of condensation polymers of aldehydes or ketones; Derivatives of such polymers
    • C08J2361/04—Condensation polymers of aldehydes or ketones with phenols only
    • C08J2361/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
    • C08J2361/08—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols with monohydric phenols
    • C08J2361/10—Phenol-formaldehyde condensates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2453/00—Characterised by the use of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers
    • C08J2453/02—Characterised by the use of block copolymers containing at least one sequence of a polymer obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives of such polymers of vinyl aromatic monomers and conjugated dienes

Abstract

An ion-selective membrane is made by plasticizing a polyvinyl acetal and milling the plasticized acetal in the absence of a solvent with a finely divided ion-exchange resin to an homogeneous dispersion which is formed into a sheet. Specified plasticizers are tri-tolyl phosphate, polychloroprene, polypropylene adipate and a 1,3-butadiene-acrylonitrile polymer. Specified ion-exchange resins are chlorinated, aminated or sulphonated cross-linked polystyrene resins, sulphonated phenol-formaldehyde resins, the reaction products of acrylic or methacrylic acid with a cross-linking agent, a phenol-formaldehyde-chloracetic acid condensate, a phenolformaldehyde-polyethylene polyamine condensate and an acetone-formaldehyde-guanidine salt condensate. In the example, polyvinyl formal is plasticized with a butadiene-acrylonitrile co-polymer, mixed with a sulphonated cross-linked polystyrene cation-exchange resin and formed into a sheet.
GB1764756A 1956-06-07 1956-06-07 Improvements in and relating to ion-exchange membranes Expired GB810391A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1764756A GB810391A (en) 1956-06-07 1956-06-07 Improvements in and relating to ion-exchange membranes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1764756A GB810391A (en) 1956-06-07 1956-06-07 Improvements in and relating to ion-exchange membranes

Publications (1)

Publication Number Publication Date
GB810391A true GB810391A (en) 1959-03-18

Family

ID=10098814

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1764756A Expired GB810391A (en) 1956-06-07 1956-06-07 Improvements in and relating to ion-exchange membranes

Country Status (1)

Country Link
GB (1) GB810391A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4529642A (en) * 1981-07-08 1985-07-16 Sharp Kabushiki Kaisha Moisture sensitive resistive element
WO1999051330A1 (en) * 1998-04-06 1999-10-14 Patko Martin J Organic ion-selective membranes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4529642A (en) * 1981-07-08 1985-07-16 Sharp Kabushiki Kaisha Moisture sensitive resistive element
WO1999051330A1 (en) * 1998-04-06 1999-10-14 Patko Martin J Organic ion-selective membranes

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