The present invention is a method for producing a vulcanized rubber composition that contains a rubber component containing a polyisoprene rubber, and a syndiotactic 1,2-polybutadiene, wherein the syndiotactic 1,2-polybutadiene and the polyisoprene rubber are kneaded at a temperature higher by 10 to 100°C than the melting point of the syndiotactic 1,2-polybutadiene, and the resultant unvulcanized rubber composition is vulcanized at a temperature falling within a range of the melting point of the syndiotactic 1,2-polybutadiene ± 15°C. The method improves the crack growth resistance of the vulcanized rubber composition.
PRODUCTION METHOD FOR VULCANIZED RUBBER COMPOSITION
HERSTELLUNGSVERFAHREN FÜR VULKANISIERTE KAUTSCHUKZUSAMMENSETZUNG
PROCÉDÉ DE PRODUCTION D'UNE COMPOSITION DE CAOUTCHOUC VULCANISÉ
06.09.2023
Patent
Elektronische Ressource
Englisch
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