PROBLEM TO BE SOLVED: To provide a pneumatic tire for winter having high performance, which maintains hardness and processing ability of a rubber, achieves excellent brake force on snow ice (on-snow ice performance) and excellent rolling resistance (high mileage), and also excellent in wet grip performance and wear resistance.SOLUTION: The pneumatic tire for winter has a tread produced using a rubber composition. The rubber composition comprises: a rubber component; silica; a polysulfide silane coupling agent; and a specific polysulfide compound. In a step which is performed before a step of a kneading a vulcanization agent, the polysulfide compound is kneaded.

    【課題】 ゴムの硬度、加工性を維持しつつ、良好な雪氷上での制動力(雪氷上性能)、転がり抵抗(低燃費性)を両立し、剛性(操縦安定性)、ウェットグリップ性能、耐摩耗性にも優れた、高性能な冬用空気入りタイヤを提供する。【解決手段】 ゴム組成物を用いて作製したトレッドを有する冬用空気入りタイヤであって、該ゴム組成物は、ゴム成分、シリカ、ポリスルフィド系シランカップリング剤、及び、特定のポリスルフィド化合物を含み、加硫薬品の混練工程より前の工程において、該ポリスルフィド化合物を混練して得られることを特徴とする冬用空気入りタイヤ。【選択図】なし


    Access

    Download


    Export, share and cite



    Title :

    PNEUMATIC TIRE FOR WINTER


    Additional title:

    冬用空気入りタイヤ


    Contributors:

    Publication date :

    2015-07-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    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



    Tread for a Winter Pneumatic Tire and a Winter Pneumatic Tire

    AMENTA ALESSANDRO / PACIULLI EMANUELA / MANFRE' LUCA et al. | European Patent Office | 2021

    Free access

    Tread for a winter pneumatic tire and a winter pneumatic tire

    AMENTA ALESSANDRO / PACIULLI EMANUELA / MANFRE' LUCA et al. | European Patent Office | 2025

    Free access

    PNEUMATIC TIRE FOR WINTER

    MIHARA SATOSHI | European Patent Office | 2019

    Free access

    PNEUMATIC TIRE FOR WINTER

    ONO SHUICHIRO | European Patent Office | 2016

    Free access

    RUBBER COMPOSITION FOR WINTER TIRE TREAD, AND WINTER PNEUMATIC TIRE

    SATO MASAKI / KAZARIYA AYAKI / SAWA HIDEAKI et al. | European Patent Office | 2019

    Free access