US 12,263,705 B2
Tire
Claude Schweitzer, Colmar-Berg (LU); Alexis Sosnowski, Montois la Montagne (FR); and Serge Guillaume Feltes, Hagondange (FR)
Assigned to THE GOODYEAR TIRE & RUBBER COMPANY, Akron, OH (US)
Filed by The Goodyear Tire & Rubber Company, Akron, OH (US)
Filed on Sep. 9, 2022, as Appl. No. 17/930,833.
Prior Publication US 2024/0100891 A1, Mar. 28, 2024
Int. Cl. B60C 11/00 (2006.01); B60C 19/08 (2006.01)
CPC B60C 19/082 (2013.01) [B60C 11/0041 (2013.01); B60C 11/0058 (2013.01); B60C 2011/0025 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A tire comprising
a tread comprising two shoulder portions and a center portion axially between the two shoulder portions,
wherein at least one of the shoulder portions comprises a first rubber composition formed with a filler containing comprising at least 80% by weight silica, and the center portion comprises a second rubber composition different from said first rubber composition having a filler comprising at least 80% by weight silica, and
wherein the first rubber composition has a shear storage modulus G′ (1%) which is at least 10% lower than a shear storage modulus G′ (1%) of the second rubber composition, wherein the shear storage modulus G′ (1%) is based on ASTM D5289 or equivalent at 100° C. and
wherein the second rubber composition has a glass transition temperature which is at least 5% higher than the glass transition temperature of the first rubber composition, wherein the first rubber composition has a Tg between −15° C. and −30° C. and the second rubber composition has a Tg between −16° C. and −25° C.