Patent ID: 7662883
Filing Date: 2010-02-16
Classification: C08F,C08K,C08L,Y10S

Abstract:
1. A rubber compound comprising: an anionically polymerized block polymer defined by A-B, wherein A includes at least one type of polymerized conjugated diene monomer, a polymerized vinyl aromatic monomer, or a mixture thereof and wherein B is a polylactone, which is hydroxy terminated, and wherein the anionically polymerized block polymer includes about 1 percent to about 5 percent of the polylactone; from about 1 phr to about 20 phr of an organosilane coupling agent wherein the organosilane coupling agent includes a bis(trialkoxysilyl) alkane, bis(trialkoxysilyialkyl) polysulfide, or mixtures thereof; and from about 10 phr to about 170 of silica filler, wherein the rubber compound is in the form of a tire tread or tire component.