Patent ID: 8695663
Filing Date: 2014-04-15
Classification: B60C,C08K,C08L,Y10T

Abstract:
1. A pneumatic rubber tire having a circumferential tread of a cap/base configuration comprised of an outer tread cap rubber layer and an internal tread rubber layer underlying said outer tread cap rubber layer where the rubber composition of the said internal tread rubber layer is comprised of, based upon parts by weight per 100 parts by weight rubber (phr): (A) elastomer(s) consisting of: (B) about 5 to about 20 phr of filler reinforcement consisting of rubber reinforcing carbon black and precipitated silica, and optionally at least one additional filler selected from electrically conductive carbon black in an amount of from about 5 to about 20 phr, graphene platelets in an amount of up to 15 phr, carbon nanotubes in an amount of up to about 10 phr and platelets of exfoliated Montmorillonite clay in an amount of up to 10 phr, wherein