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AssigneeTokuyama Corporation
InventorsManabu KONDOU, Tomoki MATSUMOTO, Yasuhiko KUDO, Masahiro NAKAMURA
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Provided is a rubber material for a tire having an excellent balance among wear resistance, fuel efficiency, and a wet grip property, a masterbatch and a rubber composition for a tire suitable for producing the same. A masterbatch contains: a rubber component which is at least one selected from the group consisting of a natural rubber and a synthetic rubber; a reinforcing filler that contains hydrophilic fumed silica; and a silane coupling agent, in which a content of the hydrophilic fumed silica is 13 parts by mass or more and 130 parts by mass or less, and a content of the silane coupling agent is 1 part by mass or more and 40 parts by mass or less, with respect to 100 parts by mass of the rubber component, and a mass ratio of the hydrophilic fumed silica in 100 mass % of the reinforcing filler is 50% or more.
A masterbatch comprising:
A method for producing a masterbatch, comprising:
A rubber composition for a tire comprising:
A rubber composition for a tire comprising:
Dependencies are inferred from the claim text.