Patent ID: 6558805
Filing Date: 2003-05-06
Classification: C08G,Y10T

Abstract:
A tire which is comprised of a generally toroidal-shaped carcass with an outer circumferential tread, two spaced beads, at least one ply extending from bead to bead and sidewalls extending radially from and connecting said tread to said beads; wherein said tread is adapted to be ground-contacting; and wherein said tread is comprised of silica and a functionalized rubbery polymer, wherein said functionalized rubbery polymer is comprised of a polymer chain having the structural formula: wherein X represents a group IVa element selected from the group consisting of carbon, silicon, germanium, and tin, wherein n represents an integer from 1 to 10, wherein in represents an integer from about 1000 to about 10,000, wherein p represents an integer from about 2 to about 50, wherein R and Râ€² represents alkyl groups that can be the same or different, and wherein the alkyl groups contain from 1 to about 8 carbon atoms.