SILICA-FILLED RUBBER COMPOSITION AND METHOD FOR MAKING THE SAME

摘要

Disclosed is a method of preparing a rubber composition comprising the steps of (a) blending in at least one preparatory mixing step at least one natural or synthetic rubbery polymer, a silica filler, a silica coupling agent, and at least one vulcanization accelerator; and (b) subsequently blending therewith in a final mixing step a sulfur curative, wherein the final mixing step is void of any vulcanization accelerator.