Provided are sealant rubber compositions which have excellent fracture properties, good sealing performance after aging, and reduced changes in fracture properties over time, as well as pneumatic tires (self-sealing tires) including the rubber compositions. Included are sealant rubber compositions containing 100 parts by mass of at least one butyl-based rubber, 2 to 15 parts by mass of at least one zinc oxide, and 100 to 300 parts by mass of at least one liquid polymer, wherein the amounts of thiuram vulcanization accelerators, dithiocarbamate vulcanization accelerators, and sulfur are each 0.1 parts by mass or less per 100 parts by mass of the at least one butyl-based rubber.
SEALANT RUBBER COMPOSITION AND PNEUMATIC TIRE
DICHTUNGSGUMMIZUSAMMENSETZUNG UND PNEUMATISCHER REIFEN
COMPOSITION DE CAOUTCHOUC D'OBTURATION ÉTANCHE ET PNEUMATIQUE
2022-03-02
Patent
Elektronische Ressource
Englisch