US 12,435,210 B2
Rubber composition and a tire
Christian Jean-Marie Kaes, Schrondweiler (LU); Carlo Kanz, Mamer (LU); Malik Djelloul-Mazouz, Bereldange (LU); Melodie Dubreuil, Diekirch (LU); Miriam Laackmann, Langen (DE); and Cecilia Aguiar Da Silva, Helmsange (LU)
Assigned to THE GOODYEAR TIRE & RUBBER COMPANY, Akron, OH (US)
Filed by The Goodyear Tire & Rubber Company, Akron, OH (US)
Filed on Mar. 30, 2022, as Appl. No. 17/657,285.
Claims priority of provisional application 63/158,614, filed on Mar. 9, 2021.
Prior Publication US 2023/0086513 A1, Mar. 23, 2023
Int. Cl. C08L 9/06 (2006.01); B60C 1/00 (2006.01)
CPC C08L 9/06 (2013.01) [B60C 1/0016 (2013.01); C08L 2205/035 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A tread being formed of a rubber composition comprising:
70 phr to 90 phr of styrene butadiene rubber, comprising a first styrene butadiene rubber having a glass transition temperature within a range of −20° C. to −35° C. and a second styrene butadiene rubber having a glass transition temperature within a range of −61° C. to −69° C.;
10 phr to 30 phr of one or more members selected from the group consisting of natural rubber and synthetic polyisoprene rubber;
50 phr to 65 phr of silica, wherein the silica has a BET surface area which is within the range of 190 m2/g to 260 m2/g; and
15 phr to 40 phr of at least one hydrocarbon resin selected from one or more of C9 modified CPD resins, C9 modified DCPD resins, and resins characterized by an aromatic proton content within a range of 5% and 15%.