US 11,912,798 B2
Rubber with backbone and end-group functionalization
Aaron Patrick Murray, Chardon, OH (US); Thomas Stockman, Brecksville, OH (US); and Jiyang Jin, Taizhou (CN)
Assigned to THE GOODYEAR TIRE & RUBBER COMPANY, Akron, OH (US)
Filed by The Goodyear Tire & Rubber Company, Akron, OH (US)
Filed on Dec. 8, 2021, as Appl. No. 17/545,120.
Claims priority of provisional application 63/123,161, filed on Dec. 9, 2020.
Prior Publication US 2022/0177610 A1, Jun. 9, 2022
Int. Cl. C08F 2/38 (2006.01); C08F 136/06 (2006.01); C08F 230/08 (2006.01); C08K 5/5445 (2006.01); B60C 1/00 (2006.01); C08F 2/06 (2006.01); C08L 15/00 (2006.01)
CPC C08F 2/38 (2013.01) [B60C 1/0016 (2013.01); B60C 1/0025 (2013.01); C08F 2/06 (2013.01); C08F 230/085 (2020.02); C08K 5/5445 (2021.01); C08L 15/00 (2013.01); C08F 2438/00 (2013.01)] 20 Claims
 
1. A functionalized rubber which is comprised of polymer chains of the structural formula:

OG Complex Work Unit Chemistry
wherein Polydiene represents a polymer chain which is comprised repeat units of at least one diene monomer and wherein R1 and R2 can be the same or different and represent alkyl groups containing from 1 to 8 carbon atoms or moieties of the formula:

OG Complex Work Unit Chemistry
wherein R3 represents alkyl groups containing from 1 to 8 carbon atoms.