To provide a rubber composition for side wall capable of providing excellent crack resistance while maintaining tear strength in a system for mixing silica without need of addition of a compound or denaturation of a rubber component during rubber component synthesis, a pneumatic tire using the same, and a manufacturing method of the rubber composition for side wall.SOLUTION: There is provided a rubber composition for side wall containing a diene rubber, a fine particle by covering rotaxane having a linear molecule, a cyclic molecule including the linear molecule, and an encapsulation group arranged at both terminals of the linear molecule so that the cyclic molecule is not detached from the linear molecule with silica, and silica blended as a reinforcement filler, in which content of the fine particle is 1 to 30 pts.mass based on 100 pts.mass of the diene rubber.SELECTED DRAWING: None

    【課題】ゴム成分合成時の化合物の添加やゴム成分の変性を要さず、シリカを配合する系において、引き裂き強度を維持しつつ、優れた耐亀裂性を得ることができる、サイドウォール用ゴム組成物、及びそれを用いた空気入りタイヤ、並びにサイドウォール用ゴム組成物の製造方法を提供する。【解決手段】ジエン系ゴムと、直鎖状分子と、上記直鎖状分子を包接する環状分子と、上記直鎖状分子から上記環状分子が脱離しないように、上記直鎖状分子の両末端に配置された封鎖基とを有するロタキサンを、シリカで被覆した微粒子と、補強性充填剤として配合したシリカとを含有し、上記微粒子の含有量が、ジエン系ゴム100質量部に対して1〜30質量部である、サイドウォール用ゴム組成物とする。【選択図】なし


    Access

    Download


    Export, share and cite



    Title :

    RUBBER COMPOSITION FOR SIDE WALL, PNEUMATIC TIRE USING THE SAME, AND MANUFACTURING METHOD OF RUBBER COMPOSITION FOR SIDE WALL


    Additional title:

    サイドウォール用ゴム組成物、及びそれを用いた空気入りタイヤ、並びにサイドウォール用ゴム組成物の製造方法


    Contributors:

    Publication date :

    2020-04-02


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    B60C VEHICLE TYRES , Fahrzeugreifen / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen / C08K Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe , USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS



    TIRE SIDE WALL RUBBER COMPOSITION AND PNEUMATIC TIRE USING THE SAME

    KAWAGUCHI KOICHI / ASHIURA MAKOTO | European Patent Office | 2015

    Free access

    RUBBER COMPOSITION FOR SIDE WALL AND PNEUMATIC TIRE

    MIYAZAKI TATSUYA | European Patent Office | 2016

    Free access

    RUBBER COMPOSITION FOR SIDE WALL AND PNEUMATIC TIRE

    KATO MANABU / TAKAHASHI RYOTA / OKAMATSU TAKAHIRO et al. | European Patent Office | 2015

    Free access

    RUBBER COMPOSITION FOR SIDE WALL AND PNEUMATIC TIRE

    KATO MANABU / TAKAHASHI RYOTA / OKAMATSU TAKAHIRO et al. | European Patent Office | 2015

    Free access

    RUBBER COMPOSITION FOR SIDE WALL AND PNEUMATIC TIRE

    OTSUKI HIROTOSHI | European Patent Office | 2018

    Free access