An object of the present invention is to provide a rubber composition which can further improve abrasion resistance without deterioration in energy efficiency, and a pneumatic tire using the rubber composition. The rubber composition comprises a polymer mixture obtained by modifying a polymer composed of at least one of a conjugated diene compound and an aromatic vinyl compound with a compound having at least one of an ester group and a carboxyl group; at least one of tetraamines; and silica, the polymer mixture having a weight-average molecular weight of 1.0×10 3 to 1.0×10 5 , and the tetraamines being a compound represented by the following formula (I): wherein each of R A , R B , R C , R D , R E , R F , R G and R H independently represents a hydrogen atom or an alkyl group, and ALK represents a tetravalent aliphatic hydrocarbon group.


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    Title :

    Резиновая смесь и пневматическая шина


    Publication date :

    2017-03-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Russian


    Classification :

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




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