RUBBER COMPOSITION FOR TIRE

摘要

PROBLEM TO BE SOLVED: To provide a rubber composition for tire having improved low heat generation property, mechanical property and vulcanization property.SOLUTION: Specific cyclic polysulfide represented by the general formula (ii) of 0.1 to 10 pts.wt., sulfur of 0 to 10 pts.wt. and a reinforcement filler containing carbon black and silica of 50 to 200 pts.wt. are blended based on 100 pts.wt. of a rubber component containing 50 to 100 wt.% of masticated rubber master batch where 0.3 to 5.0 wt.% of a specific compound represented by the general formula (i) coexists with 100 wt.% of a diene rubber containing natural rubber and/or isoprene rubber of 40 wt.% or more with the percentage of the carbon black of 30 wt.% or more in the reinforcement filler of 0 pts.wt. or more and less than 80 pts.wt. and a thermosetting resin of 5 to 20 pts.wt. is blended.SELECTED DRAWING: None