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.


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    Title :

    TIRE RUBBER COMPOSITION FOR HEAVY LOAD VEHICLE


    Contributors:

    Publication date :

    2023-10-12


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / B60C VEHICLE TYRES , Fahrzeugreifen



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