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US 10,836,209 B2Granted
Tire sidewalls including high molecular weight waxes
AssigneeBridgestone Americas Tire Operations, LLC
InventorsCraig Balnis, Emily Welles
Life of this patent
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Abstract
A tire sidewall comprising a vulcanized rubber and a high molecular weight wax.
Claims16
A tire sidewall comprising:
- a. a vulcanized rubber;
- b. a high molecular weight wax, where the high molecular weight wax is characterized in that at least 90 weight % of the wax molecules have from 32 to about 70 carbon atoms and wherein the high molecular weight wax is characterized by a peak molecular weight of at least 500 g/mol;
- c. a dynamic antioxidant, where the tire sidewall includes at least 2.0 parts by weight dynamic antioxidant per 100 parts by weight rubber, and where the dynamic antioxidant is at least one of substituted phenol, diphenyl amine-acetone reaction products, 2,2,2-trimethyl-1,2-dihydroquinoline polymer, and tri(nonophenyl)phosphite;
- and
- d. a dynamic antiozonant, where the tire sidewall includes at least 2.0 parts by weight dynamic antiozonant per 100 parts by weight rubber, and where the dynamic antiozonant is one of N,N-dialkyl-p-phenylene diamine, N-(1,3-dimethylbutyl)-N′-phenyl-p-phenylene diamine and N-isopropyl-N′-phenyl-p-phenylene diamine.
2 more elements
Dependencies are inferred from the claim text.