A rubber composition for a heavy load tire comprises, based on 100 parts by weight of elastomer (phr), at least three diene elastomers each being a different rubber material. The elastomers include polybutadienes and a synthetic polyisoprene. The polybutadienes comprise a majority portion of a first polybutadiene synthesized with a lanthanide series catalyst, and a minority portion of second polybutadiene synthesized with a Nickel-based catalyst. The first and second polybutadienes are characterized by Mooney viscosities that are within ±5 MU of each other, while the synthetic polyisoprene is characterized by a Mooney viscosity higher than the polybutadienes. The at least three elastomers are each characterized by a high cis content of greater than 80 percent.
TIRE RUBBER COMPOSITION FOR HEAVY LOAD VEHICLE
12.10.2023
Patent
Elektronische Ressource
Englisch
RUBBER COMPOSITION AND PNEUMATIC TIRE FOR HEAVY LOAD VEHICLE
Europäisches Patentamt | 2016
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