To provide a rubber composition for tires exhibiting excellent wet performance and performance on icy and snowy roads when a tire is produced, and a pneumatic tire including the rubber composition for tires. The rubber composition for tires of the present invention contains a diene rubber, silica, and a predetermined alkyltrialkoxysilane; the diene rubber containing a butadiene rubber and a particular conjugated diene rubber, a content of the butadiene rubber in the diene rubber being 20 mass% or greater and a content of the particular conjugated diene rubber in the diene rubber being from 30 to 80 mass%; an average glass transition temperature of the diene rubber being from -65 to -45°C; the particular conjugated diene rubber being a conjugated diene rubber produced by a particular production method and having predetermined ranges of aromatic vinyl unit content, vinyl bond content, and weight average molecular weight.


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    Title :

    TIRE RUBBER COMPOSITION AND PNEUMATIC TIRE


    Additional title:

    REIFENKAUTSCHUKZUSAMMENSETZUNG UND LUFTREIFEN
    COMPOSITION DE CAOUTCHOUC POUR PNEUMATIQUE ET PNEUMATIQUE


    Contributors:

    Publication date :

    2020-03-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / C08C TREATMENT OR CHEMICAL MODIFICATION OF RUBBERS , Behandlung oder chemische Modifizierung von Kautschuken / 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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