A rubber composition contains a diene rubber containing a styrene-butadiene copolymer component formed from at least one type of styrene-butadiene copolymer and a reinforcing filler; the styrene-butadiene copolymer satisfying: a bonded styrene content being from 5 to 50 wt. %; a total of styrene content of an ozone-decomposed component S1 having one styrene-derived unit and styrene content of an ozone-decomposed component S1V1 having one styrene-derived unit and one 1,2-bonded butadiene-derived unit being less than 80 wt. % of the bonded styrene content and a total of styrene content of the ozone-decomposed component S1V1 being 10 wt. % or greater of the bonded styrene content; an integrated intensity of an ozone-decomposed component S1V2 having one styrene-derived unit and two 1,2-bonded butadiene-derived units being 15% or greater of an integrated intensity of all ozone-decomposed components containing a styrene-derived unit; and a vinyl content of butadiene moiety being 50% or greater.
Rubber Composition and Pneumatic Tire Manufactured Using Same
2018-03-15
Patent
Electronic Resource
English
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