A rubber composition for use in a tire tread is disclosed. The rubber composition comprises a diene elastomer, a pre-hydrophobated silica, a blocked mercaptosilane, a resin, and a relatively low molecular weight polybutadiene functionalized with a hydroxyl functional group. The pre-hydrophobated silica is hydrophobated prior to its addition the rubber composition by treatment with at least one silane selected from the group consisting of alkylsilanes, alkoxysilanes, organoalkoxysilyl polysulfides and organomercaptoalkoxysilanes and optionally at least one dispersing aid selected from the group consisting of fatty acids, diethylene glycols, polyethylene glycols, fatty acid esters of hydrogenated or non-hydrogenated C 5 or C 6 sugars, polyoxyethylene derivatives of fatty acid esters of hydrogenated or non-hydrogenated C 5 or C 6 sugars.
RUBBER COMPOSITION AND PNEUMATIC TIRE HAVING TREAD WITH HYDROXY-TERMINATED POLYBUTADIENE
KAUTSCHUKZUSAMMENSETZUNG UND LUFTREIFEN MIT LAUFFLÄCHE MIT HYDROXYTERMINIERTEM POLYBUTADIEN
COMPOSITION DE CAOUTCHOUC ET PNEUMATIQUE AYANT UNE BANDE DE ROULEMENT COMPORTANT UN POLYBUTADIÈNE À TERMINAISON HYDROXY
2020-04-29
Patent
Elektronische Ressource
Englisch
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