Patent ID: 8952088
Filing Date: 2015-02-10
Classification: B60C,C08K,C08L,Y10T

Abstract:
1. A heavy vehicle tire tread constituted wholly from a material based upon a rubber composition, the composition comprising, per 100 parts by weight of elastomer: a solution polymerized styrene-butadiene rubber having a styrene content of between 10 wt. % and 35 wt. %; between 45 and 110 phr of silica and between (2.12×10 a sulfur curing system comprising a sulfenamide accelerator and between 0 and 0.8 phr of free sulfur, wherein a ratio of the sulfenamide accelerator and the sulfur is between 2 and 7 unless the free sulfur is less than 0.2 phr, wherein the sulfenamide accelerator is between 2.2 and 3.2 phr, wherein the rubber composition includes essentially no carbon black.