The present invention provides a rubber composition for studless winter tires that provides a balanced improvement of performance on ice and abrasion resistance, regardless of temperature, and a studless winter tire including the rubber composition. The present invention relates to a tread rubber composition for studless winter tires, containing: an isoprene-based rubber; a polybutadiene rubber; a water-soluble fine particle; a fine particle silica having a nitrogen adsorption specific surface area of 180 m2/g or more; and a liquid plasticizer, the fine particle silica being present in an amount of 105 parts by mass or more, the liquid plasticizer being present in an amount of more than 30 parts by mass, each per 100 parts by mass of the rubber component in the tread rubber composition.


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    Title :

    TREAD RUBBER COMPOSITION FOR STUDLESS WINTER TIRES


    Additional title:

    LAUFFLÄCHENKAUTSCHUKZUSAMMENSETZUNG FÜR SPIKELOSE WINTERREIFEN
    COMPOSITION DE CAOUTCHOUC DE BANDE DE ROULEMENT POUR PNEUS D'HIVER SANS CLOUS


    Contributors:

    Publication date :

    2021-05-12


    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 / 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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    TREAD RUBBER COMPOSITION FOR STUDLESS WINTER TIRES

    SAWAKI HARUKO / YOSHIOKA MIKAKO / YOKOYAMA YUKA | European Patent Office | 2019

    Free access