Resin-extended rubber and process for preparing

A rubber composition comprising:

• a. resin-extended rubber comprising n parts of rubber including at least one conjugated diene monomer-containing rubber and up to 100 phr of at least one thermoplastic resin, wherein n is an integer from 10 to 100;
• wherein the resin-extended rubber is polymerized in at least one non-polar solvent, wherein the non-polar solvent is selected from the group consisting of:
• alkanes having from 4 to 9 carbon atoms, cycloalkanes or alkyl cycloalkanes having from 5 to 10 carbon atoms, or aromatics and alkyl substituted aromatics having from 6 to 12 carbon atoms;
• b. optionally at least one additional rubber in an amount of 100-n parts;
• c. at least one reinforcing filler in a total amount of 10-200 phr;
• and
• d. a cure package;
• wherein the at least one thermoplastic resin is selected from the group consisting of a terpene resin, a C5 containing resin, or both;
• wherein the at least one conjugated diene monomer-containing rubber is produced by an anionic polymerization process that utilizes a randomizer.