There are provided a tire that combines a low elastic modulus at low temperatures with a high hysteresis loss at low temperatures and has excellent on-ice brake performance, and a vulcanized rubber and a rubber composition from which the tire is obtained. A rubber composition comprising a rubber component comprising a natural rubber, a polybutadiene rubber, and a styrene-butadiene copolymer rubber, and 50 to 90 parts by mass of a filler comprising silica relative to 100 parts by mass of the rubber component, wherein the mass n of the natural rubber in the rubber component is 40% by mass or more, the mass n, the mass b of the polybutadiene rubber, and the mass s of the styrene-butadiene copolymer rubber satisfy the relation: s≤b≤n, provided that when n=b, s
RUBBER COMPOSITION, VULCANIZED RUBBER, AND TIRE
2020-09-17
Patent
Elektronische Ressource
Englisch
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