Tire tread containing fibrillated fibers.

摘要

The tread portion (25) of a tire (20) comprises a rubber matrix containing 0.5 to 5 phr of short fibrillated fibers dispersed therein. Preferably, the fibrillated fibers are aromatic polyamides or liquid crystalline fibers. The tire tread has a plurality of grooves (26) therein which define traction elements (27) having radially outermost surfaces (28), and in a footprint of the tire the radially outermost surfaces (28) of the traction elements (27) present an average of at least 1.4 cm of perimeter length for each square centimeter of total footprint area.