Patent ID: 8362118
Filing Date: 2013-01-29
Classification: B60C,C08K,C08L

Abstract:
1. A rubber composition for use in tires comprising: from 60 to 120 parts by weight of a silica having a CTAB specific surface area of from 80 to 170 m wherein the total of the terminal-modified styrene-butadiene rubber and the butadiene rubber is from 60 to 100 weight % based on the amount of the diene rubber, the terminal functional group of the terminal-modified styrene-butadiene rubber is a hydroxy group or an N-methylpyrrolidone group, the average glass transition temperature of the diene rubber is −55° C. to −70° C., the average glass transition temperature of a compound formed from the diene rubber, the aromatic modified terpene resin, and an optional oil component-containing plasticizer is from −45° C. to −60° C., the hydroxy value of the aromatic modified terpene resin is from 0 to 25 KOH mg/g, and the glass transition temperature of the aromatic modified terpene resin is from 20 to 80° C.