RUBBER COMPOSITION FOR TIRE

摘要

PROBLEM TO BE SOLVED: To provide a rubber composition for a tire for improving low heat-generation property and mechanical characteristics.SOLUTION: There is provided a rubber composition for a tire obtained by blending 30 pts.wt. or more and less than 80 pts.wt. of carbon black having a nitrogen absorption specific surface area 30 to 150 m/g and 5 to 20 pts.wt. of a thermoplastic resin into 100 pts.wt. of a rubber composition which is composed of 50 to 100 wt.% of a masticated masterbatch in which 0.3 to 5.0 wt.% of a specific compound represented by the general formula (i) is coexisted in 40 wt.% or more of a natural rubber and/or an isoprene rubber and 100 wt.% of a diene-based rubber optionally including a styrene-butadiene rubber and 50 to 0 wt.% of the total of the styrene-butadiene rubber and the natural rubber and includes 50 to 100 wt.% of the total of the natural rubber and the isoprene rubber in the rubber component and 50 to 0 wt.% of the total of the styrene-butadiene rubber.SELECTED DRAWING: None