SULFONATED HEAT-RESISTANT POLYMERIC MATERIAL AND METHOD OF PRODUCTION THEREOF

A sulfonated heat-resistant polymeric material containing at least 1 % by weight (in terms of sulfur content) of sulfone groups and an ammonia adsorption capacity of at least 10 mg/g, which is produced by heat-treating at 250 to 500 DEG C a starting material composition mainly comprising a sulfonate...

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Bibliographische Detailangaben
Hauptverfasser:	SAKATA, KOJI, SAKAWAKI, KOUJI
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBONFILAMENTS CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS,THREADS, FIBRES, BRISTLES OR RIBBONS CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY NATURAL OR ARTIFICIAL THREADS OR FIBRES ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL SPINNING TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP THEIR RELEVANT APPARATUS TRANSPORTING WORKING-UP
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Beschreibung
Zusammenfassung:	A sulfonated heat-resistant polymeric material containing at least 1 % by weight (in terms of sulfur content) of sulfone groups and an ammonia adsorption capacity of at least 10 mg/g, which is produced by heat-treating at 250 to 500 DEG C a starting material composition mainly comprising a sulfonated aromatic polymeric compound containing an aromatic sulfonic acid or its salt as the repeating unit and being soluble in aqueous solvents. On produit un matériau polymère thermorésistant sulfoné, qui contient au moins 1 % en poids (en termes de teneur en soufre) de groupes sulfone et qui présente une capacité d'adsorption de l'ammoniac d'au moins 10 mg/g, en soumettant à un traitement thermique à une température comprise entre 250 et 500°C une composition d'un matériau de départ comprenant essentiellement un composé polymère aromatique sulfoné, qui contient un acide sulfonique aromatique ou son sel comme unité de répétition et qui est soluble dans des solvants aqueux.