PERFLUORINATED ION-EXCHANGE COPOLYMER- BASED LIQUID COMPOSITION

FIELD: ion- exchange polymer materials. SUBSTANCE: invention relates to perfluorinated copolymer containing functional sulfonic groups than can be used when manufacturing and repairing ion-exchange membranes useful in alkali chloride hydrolysis or water electrolysis, in fuel and gas separation cells...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	TIMOFEEV S.V, FATEEV V.N, KHACHATRJAN S.S, BOBROVA L.P
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS GENERAL PROCESSES OF COMPOUNDING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP WORKING-UP
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Beschreibung
Zusammenfassung:	FIELD: ion- exchange polymer materials. SUBSTANCE: invention relates to perfluorinated copolymer containing functional sulfonic groups than can be used when manufacturing and repairing ion-exchange membranes useful in alkali chloride hydrolysis or water electrolysis, in fuel and gas separation cells, as well as for impregnating various substrates, etc. with free or alkali metal bound sulfonic acid groups having equivalent mass above 1000 and polar organic solvent or mixture of polar organic solvent with nonpolar solvent. Polymer is characterized by number-average molecular weight (1-8) x 105, ratio of weigh- average molecular weight to number-average molecular weight between 1.2 and 1.4 and content of crystallization water 2-5 wt.%. EFFECT: increased strength of products. 4 cl, 2 tbl, 22 ex