Patent ID: 6809137
Filing Date: 2004-10-26
Classification: B60C,C08K

Abstract:
A rubber composition comprising:a rubber component; sodium 1,6-hexamethylenedithiosulfate dihydrate, in the amount of 1 to 10 parts by weight per 100 parts of the rubber component; and compound A having two or more ester groups in one molecule, in the amount of 0.5 to 20 parts by weight per 100 parts by weight of the rubber component, wherein said rubber composition has, in a curve exhibiting a change in dynamic storage modulus during elevation of temperature, an intersection of an extrapolation line A of a portion in which the dynamic storage modulus shows an approximately linear change before a rapid decrease at temperatures higher than 100Â° C. and an extrapolation line B of a portion in which the dynamic storage modulus rapidly decreases, at a temperature of 170Â° C. or higher.