RUBBER COMPOSITION FOR TIRE AND PNEUMATIC TIRE
PROBLEM TO BE SOLVED: To provide a rubber composition for a tire, which can improve a high mileage property, wet grip performance and wear resistance in a good balance and can give good processability, and to provide a pneumatic tire manufactured by using the above rubber composition.SOLUTION: The r...
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Main Authors | , |
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Format | Patent |
Language | English |
Published |
24.07.2014
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Subjects | |
Online Access | Get full text |
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Summary: | PROBLEM TO BE SOLVED: To provide a rubber composition for a tire, which can improve a high mileage property, wet grip performance and wear resistance in a good balance and can give good processability, and to provide a pneumatic tire manufactured by using the above rubber composition.SOLUTION: The rubber composition for a tire comprises: a rubber component including a styrene butadiene rubber having 20 mass% or more of a styrene amount; silica; and a block copolymer having a weight average molecular weight Mw of 4×10or more and having at least four of block segments of a styrene monomer unit and block segments of a butadiene monomer unit. The total content of the styrene butadiene rubber and the butadiene rubber is 90 mass% or more in 100 mass% of the rubber component. The silica and the block copolymer are included by 5 to 200 parts by mass and 1 to 40 parts by mass, respectively, with respect to 100 parts by mass of the rubber component. |
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Bibliography: | Application Number: JP20130003668 |