The present disclosure relates to rubber compositions for tire sidewalls which compositions are based upon elastomers including natural rubber in combination with cis-polybutadiene and also contain specified amounts of carbon black and silica filler as well as silane coupling agent. While a reduction in hysteresis can be beneficial in achieving lower rolling resistance, lower heat build-up, or both, reducing the amount of carbon black to achieve a reduction in hysteresis can undesirably reduce the modulus or toughness of the rubber composition. Use of the disclosed rubber compositions in tire sidewalls can achieve reduced hysteresis along with improved toughness.
SILICA CONTAINING BLACK SIDEWALL COMPOUNDS AND TIRES COMPRISING SAME
COMPOSES DE FLANC NOIRS CONTENANT DE LA SILICE ET PNEUS COMPRENANT CEUX-CI
2016-05-17
Patent
Electronic Resource
English
IPC: | C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / B60C VEHICLE TYRES , Fahrzeugreifen / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS |
SILICA CONTAINING BLACK SIDEWALL COMPOUNDS AND TIRES COMPRISING SAME
European Patent Office | 2017
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