Verfahren zur Regenerierung von vernetztem vulkanisiertem Fluorkautschuk und dessen Verwendung

Verfahren zur Regenerierung von vernetztem vulkanisiertem Fluorkautschuk und dessen Verwendung

Filler-containing, cross-linked, vulcanized fluorine rubber waste is regenerated by treatment with at least one of CH3SO3H, ClSO3H, CF3SO3H and fuming sulfuric acid, followed by dissoluting into a solvent and separating solvent-insoluble filler therefrom, whereby revulcanizable fluorine rubber is re...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: MIZUIDE, FUMIYO, TATSU, HARUYOSHI, NARAKI, AKIHIRO
Format: Patent
Sprache:ger
Schlagworte:
AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G
CHEMISTRY
COMPOSITIONS BASED THEREON
GENERAL PROCESSES OF COMPOUNDING
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
THEIR PREPARATION OR CHEMICAL WORKING-UP
WORKING-UP
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Beschreibung
Zusammenfassung:Filler-containing, cross-linked, vulcanized fluorine rubber waste is regenerated by treatment with at least one of CH3SO3H, ClSO3H, CF3SO3H and fuming sulfuric acid, followed by dissoluting into a solvent and separating solvent-insoluble filler therefrom, whereby revulcanizable fluorine rubber is recovered from the fluorine rubber waste, almost irrespective of types of cross-linking systems used for formation of cross-linked, vulcanized fluorine rubber.