| 摘要 |
The present invention is directed to a pneumatic tire comprising a ground contacting tread, the tread comprising a rubber composition comprising a solution polymerized styrene-butadiene rubber having a bound styrene content of at least 36 percent by weight and a vinyl 1,2 content of less than 25 percent by weight; optionally, at least one additional diene based rubber; silica; a sulfur donor; a sulfenamide accelerator; at least one secondary accelerator selected from the group consisting of guanidines, dithiocarbamates and thiurams; and an α,ω-bis(N,N′-dihydrocarbylthiocarbamamoyldithio)alkane; wherein the zinc content of the rubber composition is less than 0.5 parts by weight, per 100 parts by weight of elastomer (phr) as Zn metal.
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