| abstract |
A method of preparing a vulcanizable material composition comprising mixing a rubber, silica, and a silica coupling agent within a first mixing step to form a first masterbatch composition; Within two mixing steps, nicotinamide is added to the first masterbatch composition and mixed to form a second masterbatch composition, and within the final mixing step, the curing agent is added to the first masterbatch composition. Adding and mixing to the masterbatch composition of 2. |