| abstract |
The present invention relates to a rubber composition for a tire tread and a tire manufactured using the same, wherein the styrene content is 35 to 45% by weight, the vinyl group content is 20 to 30% by weight butadiene, and the glass transition temperature is -30. 30 to 50 parts by weight of the first solution-polymerized styrene-butadiene rubber at -40 ° C, styrene content of 5 to 15% by weight, vinyl group content of butadiene to 35 to 45% by weight, and glass transition temperature of -60 10 to 30 parts by weight of the second solution-polymerized styrene-butadiene rubber having a temperature of from -70 ° C, and 30 to 50 parts by weight of neodymium butadiene rubber, and 80 to 110 parts by weight of silica. The rubber composition for tire treads improves braking performance on ice roads, and has excellent braking performance on dry roads and wet roads, and has low rotational resistance and thus can be applied for four seasons. |