Tire with tread with oxidized carbon black
AssigneeThe Goodyear Tire & Rubber Company
InventorPaul Harry Sandstrom
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Abstract
This invention relates to a tire with a tread of rubber composition with reinforcing filler containing oxidized rubber reinforcing carbon black together with at least one amide additive. In one embodiment, the invention relates to a truck tire intended for heavy duty performance with a tread rubber composition comprised of natural cis 1,4-polyisoprene rubber containing reinforcing filler comprised of oxidized rubber reinforcing carbon black together with at least one amide additive. Such amide additive is comprised of at least one amide of Formula I: wherein R1 is an alkyl radical comprised of from 12 to 36 carbon atoms, an alkenyl radical comprised of from 12 to 36 carbon atoms or alkadienyl radical comprised of from 12 to 36 carbon atoms.
Claims20
A pneumatic tire having a circumferential rubber tread of a rubber composition comprised of, based on parts by weight per 100 parts by weight elastomer (phr):
- (A) elastomer(s) comprised of:
- (1) at least one conjugated diene-based elastomer, comprised of:
- (a) about 0 to about 35 phr of cis 1,4-polyisoprene rubber, and
- (b) about 65 to about 100 phr of at least one additional diene-based elastomer, or
- (2) at least one conjugated diene-based elastomer, comprised of:
- (a) about 55 to about 100 phr of cis 1,4-polyisoprene natural rubber, and
- (b) about 0 to about 45 of at least one additional elastomer,
- (B) about 25 to about 125 phr of reinforcing filler comprised of about 55 to about 100 weight percent rubber reinforcing black comprised of from about 20 to about 100 weight percent surface oxidized carbon black, and
- (C) about 0.5 to about 20 phr of amide of formula (I):
- wherein R1 is an alkyl radical comprised of from 12 to 36 carbon atoms, an alkenyl radical comprised of from 12 to 36 carbon atoms or alkadienyl radical comprised of from 12 to 36 carbon atoms.
Dependencies are inferred from the claim text.