OIL EXTENDED RUBBER AND COMPOSITION CONTAINING LOW PCA OIL

摘要

The invention is directed to an oil extended rubber and composition comprising: a solution polymerized elastomer derived from isoprene and optionally at least member of the group consisting of conjugated dienes and vinyl aromatic monomers; and from about 5 to about 70 parts by weight, per 100 parts by weight of elastomer (phr), of a process oil having a glass transition temperature of from about -80° C. to about -40° C. and a polycyclic aromatic content of less than 3 percent by weight as determined by the IP346 method.