Heavy vehicle tire treads and/or undertread constituted at least in part from a rubber composition comprising be-tween 80 and 100 phr of a natural rubber and between 0 and 20 phr of a synthetic polyisoprene rubber, a reinforcement filler com-prising a) between 30 and 50 phr of a highly dispersible silica and b) a carbon black in an amount of between (0.75)C phr and (1.25)C phr as determined by the equation C = -0.8Si + 44.3, wherein Si is the amount of the highly dispersible silica, a silane coupling agent and a sulfur curing system comprising between 1.5 and 3 phr of free sulfur and between (0.9)A phr and (L 1)A phr of a sulfenamide accelerator, wherein A is determined by a formula that is a function of the sulfur quantity and the silica weight fraction of the total reinforcement filler.
HEAVY VEHICLE TREADS/UNDERTREAD
BANDES DE ROULEMENT/SOUS-CHAPE POUR VEHICULE POIDS LOURD
2015-04-28
Patent
Electronic Resource
English
IPC: | 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 / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen |
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