AMINE-INITIATED ELASTOMERS HAVING A HYSTERESIS REDUCING INTERACTION WITH SILICA

摘要

The reduction of hysteresis in a silica-filled, vulcanized elastomeric compound is produced by mixing diene monomer and optionally monovinyl aromatic monomer with a lithium amine initiator and, optionally, a modifier; effecting polymerization co nditions; terminating polymerization with an amino group producing terminator to form an a mine functionalized diene elastomer; compounding the amine functionalized diene elast omer with an amorphous silica filler and a vulcanization agent; and, effecting vulcanizati on. A pneumatic tire tread stock incorporating the vulcanized elastomer compound exhib its decreased rolling resistance in the tire.