RUBBER COMPOSITION FOR TIRE AND TIRE MANUFACTURED BY THE SAME

摘要

PURPOSE: A rubber composition for tire thread is provided to produce a tire with excellent rotary resistance or wear performance as well as braking ability on wet road due to excellent processability and dispersibility of a reinforcing agent. CONSTITUTION: A rubber composition for tire thread comprises a base rubber which includes: 40-60 parts by weight of a emulsion polymerized styrene-butadiene rubber(E-SBR) in which the styrene content is 40-50 weight% and the vinyl content is 10-20 weight%; 10-20 parts by weight of butadiene rubber; and 20-40 parts by weight of solution polymerized styrene-butadiene rubber(S-SBR) in which the styrene content is 20-40 weight% and the vinyl content is 40-60 weight%. The solution polymerized styrene-butadiene rubber includes carboxyl group(-COOH).