To provide a rubber composition for a tire, the rubber composition reduces rolling resistance of a pneumatic tire and enhances wet grip performance, performance on snow, and processability equal to or beyond conventional levels. The rubber composition includes a total of 45 to 65 parts by mass of an aromatic modified terpene resin having a softening point of 100°C or higher and an oil per 100 parts by mass of a rubber component formed from 20 to 40 mass% of a butadiene rubber and from 80 to 60 mass% of another diene rubber containing an emulsion-polymerized styrene-butadiene rubber E-SBR1 having a bonded styrene content of 30 mass% or less and an emulsion-polymerized styrene-butadiene rubber E-SBR2 having a bonded styrene content of 35 mass% or greater; an amount of the E-SBR1 being from 85 to 92 mass% per 100 mass% of the emulsion-polymerized styrene-butadiene rubber; and a ratio (WB/WT) of the compounded amount of the butadiene rubber (WB) to the compounded amount of the aromatic modified terpene resin (WT) being from 0.5 to 3.0.


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    Title :

    RUBBER COMPOSITION FOR TIRES


    Additional title:

    KAUTSCHUKZUSAMMENSETZUNG FÜR REIFEN
    COMPOSITION DE CAOUTCHOUC POUR PNEUS


    Contributors:

    Publication date :

    2020-09-23


    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 / C08F MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS , Makromolekulare Verbindungen, erhalten durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS



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