SILICA CONTAINING BLACK SIDEWALL COMPOUNDS AND TIRES COMPRISING SAME

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 reductio...

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Bibliographic Details
Main Authors ABDALLAH, DAVID G., JR, LANZAROTTA, JOSEPH M
Format Patent
LanguageEnglish
French
Published 17.05.2016
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
DEVICES OR ARRANGEMENTS RELATED TO TYRES
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
PERFORMING OPERATIONS
REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIESIN GENERAL
THEIR PREPARATION OR CHEMICAL WORKING-UP
TRANSPORTING
TYRE CHANGING OR REPAIRING
TYRE INFLATION
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS
VEHICLE TYRES
VEHICLES IN GENERAL
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Summary: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.
Bibliography:Application Number: CA20082710859