Polycyclic aromatics free tread compound of truck-bus radial tire used in Deep tread

摘要

PURPOSE: Provided is a tread rubber composition of truck and bus radial tires for a deep tread, which contains small polycyclic aromatics and is excellent in heat resistance and abrasion property. CONSTITUTION: The tread rubber composition contains 100pts.wt. of a raw rubber comprising 60-70pts.wt. of a natural rubber and 30-40pts.wt. of a butadiene rubber, 55-60pts.wt. of carbon black, and 4-7pts.wt. of paraffin oil containing less than 3wt% of the polycyclic aromatics. The tires produced by using the tread rubber composition are excellent in performance and friendly to environment.