A rubber composition for a tire tread comprising: a diene rubber; a silica having an N 2 SA of from 194 to 225 m 2 /g and a CTAB of from 180 to 210 m 2 /g; and a polysiloxane represented by the average composition formula of formula (1) and contained in an amount of from 1 to 20 mass% with respect to the quantity of silica. (A) a (B) b (C) c (D) d (R 1 ) 3 SiO (4-2a-b-c-d-e)/2 [In the formula, A is a divalent organic group containing a sulfide group, B is a monovalent hydrocarbon group having from 5 to 10 carbon atoms, C is a hydrolyzable group, D is an organic group containing a mercapto group, and R 1 is a monovalent hydrocarbon group having from 1 to 4 carbon atoms, where 0 ¤ a < 1, 0 ¤ b < 1, 0 < c < 3, 0 < d < 1, 0 ¤ e < 2, 0 < 2a + b + c + d+ e < 4, and at least one of a and b is not 0]. Also provided is a pneumatic tire having tire treads formed using the rubber composition.


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    Title :

    RUBBER COMPOSITION FOR TIRE TREAD, AND PNEUMATIC TIRE USING SAME


    Additional title:

    GUMMIZUSAMMENSETZUNG FÜR REIFENPROFIL UND LUFTREIFEN DAMIT
    COMPOSITION DE CAOUTCHOUC POUR BANDE DE ROULEMENT, ET PNEU L'UTILISANT


    Contributors:

    Publication date :

    2019-10-30


    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 / C08G MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS , Makromolekulare Verbindungen, anders erhalten als 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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