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

Claim 4:
5. A tire layer for a pneumatic tire, the tire layer comprising:
a rubber composition including:
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 1 to about 10 phr;

a processing aid represented by the following Formula (2):, , where M represents a divalent metal, and R5 and R6 can be the same or different and are selected from the group consisting of hydrogen atoms, alkyl groups, alkylene groups, hydroxyl substituted alkyl or alkylene groups, amine substituted alkyl or alkylene groups, and thiol substituted alkyl or alkylene groups; and
reinforcing filler comprising at least carbon black, wherein the total amount of reinforcing filler is from about 2 to about 300 phr.