Rubber Composition for Tire Tread
    477.
    发明申请

    公开(公告)号:US20170137615A1

    公开(公告)日:2017-05-18

    申请号:US15316097

    申请日:2015-06-03

    Inventor: Miyuki Nakajima

    Abstract: A rubber composition for a tire tread is a rubber composition containing from 66 to 110 parts by weight of a filler containing not less than 50 wt. % of a silica per 100 parts by weight of a diene rubber containing not less than 40 wt. % of a terminal-modified styrene-butadiene rubber, from 8 to 35 wt. % of a natural rubber, and from 15 to 40 wt. % of a butadiene rubber; the terminal-modified styrene-butadiene rubber having a terminal functional group derived from a compound reacting with silanol groups; a styrene unit content thereof being from 38 to 48 wt. %; an oil-extended oil content thereof being less than 30 wt. %; a ratio (BR/NR) of a compounded amount of the butadiene rubber (BR) to the natural rubber (NR) being more than 1.0 and not more than 2.5; and an embrittlement temperature of the rubber composition being not more than −45° C.

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