RUBBER COMPOSITION FOR TIRE AND PNEUMATIC TIRE

DRIVE June 7, 2017
Source
An object of the present invention is to provide a rubber composition for tire which can improve initial grip performance and stable grip performance during running at a high level while maintaining sufficient abrasion resistance, and a pneumatic tire having a tread composed of this rubber composition for tire. The rubber composition for tire comprises 70 to 200 parts by mass of a filler and 60 to 250 parts by mass of a softener compounding 15 to 60 parts by mass of a predetermined tackifying resin with a softening point of not less than 110°C based on 100 parts by mass of a diene rubber component comprising not less than 20% by mass of a styrene-butadiene copolymer rubber a having a glass transition temperature of -35 to 15°C, a styrene content of 35 to 48% by mass and a vinyl unit quantity in the butadiene component of 35 to 55%.

Discussion in the ATmosphere

Loading comments...