The invention provides a tire for heavy loads, which has improved cutting resistance during high-speed driving under high loads. A heavy duty tire having a sidewall using a sidewall rubber composition, the sidewall rubber composition containing an isoprene rubber, a butadiene rubber, and an oxidized carbon black having an average particle diameter of 30 nm or less, the butadiene rubber content being 5% by mass or more and less than 50% by mass per 100% by mass of the rubber component, the contents (mass%) of the isoprene rubber and the butadiene rubber in 100 mass% of the rubber component of the rubber composition for the sidewall satisfy formula (1), and the thickness (mm) of the sidewall at the maximum width and the content (mass%) of the butadiene rubber in 100 mass% of the rubber component of the rubber composition for the sidewall satisfy formula (2). (1) The content of isoprene rubber > the content of butadiene rubber (2) The thickness at the maximum width >-0.14 * the content of butadiene rubber + 10.0.

    本发明提供改善高载荷且高速行驶时的耐切割性的重载荷用轮胎。一种具有使用胎侧壁用橡胶组合物的胎侧壁的重载荷用轮胎,胎侧壁用橡胶组合物含有异戊二烯系橡胶、丁二烯橡胶和平均粒径为30nm以下的氧化炭黑,橡胶成分100质量%中的丁二烯橡胶的含量为5质量%以上且小于50质量%,其中,胎侧壁用橡胶组合物的橡胶成分100质量%中,异戊二烯系橡胶和丁二烯橡胶的含量(质量%)满足下述式(1),胎侧壁的最大宽度处厚度(mm)和胎侧壁用橡胶组合物中橡胶成分100质量%中的丁二烯橡胶的含量(质量%)满足下述式(2)。(1)异戊二烯系橡胶的含量>丁二烯橡胶的含量(2)最大宽度处厚度>‑0.14×丁二烯橡胶的含量+10.0。


    Zugriff

    Download


    Exportieren, teilen und zitieren



    Titel :

    Heavy duty tire


    Weitere Titelangaben:

    重载荷用轮胎


    Beteiligte:
    HIMEDA SHINGO (Autor:in)

    Erscheinungsdatum :

    2022-04-12


    Medientyp :

    Patent


    Format :

    Elektronische Ressource


    Sprache :

    Chinesisch


    Klassifikation :

    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



    HEAVY-DUTY TIRE

    NAKASATO REO / SATO TAIKI | Europäisches Patentamt | 2023

    Freier Zugriff

    HEAVY DUTY TIRE

    TODOROKI DAISUKE | Europäisches Patentamt | 2022

    Freier Zugriff

    HEAVY DUTY TIRE

    HABA TOSHIFUMI | Europäisches Patentamt | 2022

    Freier Zugriff

    HEAVY DUTY TIRE

    NAKASATO REO / SATO TAIKI | Europäisches Patentamt | 2021

    Freier Zugriff

    HEAVY DUTY TIRE

    NAKASATO REO / SATO TAIKI | Europäisches Patentamt | 2021

    Freier Zugriff