Patent ID: 11970610
Assignee: THE GOODYEAR TIRE & RUBBER COMPANY
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C  B | IPC B  C

Claim 0:
1. A pneumatic tire comprising:
a tire layer, the tire layer including a rubber composition comprising:
100 parts of natural rubber;
a pyrazolone-based compound represented by the following Formula (1), or a salt thereof:, , where R1, R2, R3, and R4 are the same or different, and each represents a hydrogen atom, an alkyl group, an aralkyl group, an aryl group, or a heterocyclic group; R3 and R4 may be taken together to form an alkylidene group, and R2, R3, and R4 may be taken together to form an alkylene group; and each of these groups may have one or more substituents, wherein the pyrazolone-based compound is present in the rubber compound in an amount from about 0.1 to about 10 phr; and

reinforcing filler selected from carbon black and optionally a silica, graphene, functionalized graphene, carbon nanotubes, functionalized carbon nanotubes, or mixtures thereof wherein the total amount of reinforcing filler is from about 2 to about 300 phr;
wherein in response to the reinforcing filler being solely carbon black or solely a carbon black and silica blend, the rubber composition further comprises zinc glycerolate.