To provide a sealant material composition securing a good sealability while suppressing a flow of a sealant in travel, and furthermore, favorably maintaining durability of a tire, simultaneously realizing these properties in a good balance.SOLUTION: A sealant material composition composes a sealant layer 10 arranged on an inner surface of a pneumatic tire. The sealant material composition to be used has a ratio d1/d2 being 0.7 to 0.9, the ratio between a measured specific gravity d1 of the sealant material composition measured by a water substitution method and a calculated specific gravity d2 of the sealant material composition calculated with a specific gravity and an amount of blending of each of raw materials included in the sealant material composition.SELECTED DRAWING: Figure 1

    【課題】走行中のシーラントの流動を抑制しながら、良好なシール性を確保し、更に、タイヤの耐久性を良好に維持し、これら性能をバランスよく両立することを可能にしたシーラント材組成物の提供。【解決手段】空気入りタイヤの内表面に配置されたシーラント層10を構成するシーラント材組成物として、水中置換法によって測定されるシーラント材組成物の測定比重d1と、シーラント材組成物に含まれる原材料それぞれの比重および配合量から算出されるシーラント材組成物の計算比重d2との比d1/d2が0.7~0.9であるものを用いる。【選択図】図1


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    Title :

    SEALANT MATERIAL COMPOSITION


    Additional title:

    シーラント材組成物


    Contributors:

    Publication date :

    2023-09-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    C09K Materialien für Anwendungen, soweit nicht anderweitig vorgesehen , MATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR / B29C Formen oder Verbinden von Kunststoffen , SHAPING OR JOINING OF PLASTICS / B60C VEHICLE TYRES , Fahrzeugreifen



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    TAKAHASHI KIYOTO | European Patent Office | 2021

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    TAKAHASHI KIYOTO | European Patent Office | 2023

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    SEALANT MATERIAL COMPOSITION

    TAKAHASHI KIYOTO | European Patent Office | 2021

    Free access