Provided is a sound absorbing material, including: a protective layer; a first substrate layer having a communication hole; and a second substrate layer having a communication hole, in this order, in which a flexibility-toughness value of the protective layer, which is represented by Formula (I) described below, is 1 to 75 [MPa/µm]. Flexibility−ToughnessValue=TensileModulusMPaofProtectiveLayerat25°C×ShoreAHardnessofProtectiveLayer/ProtectiveLayerThicknessμm


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    Title :

    SOUND ABSORBING MATERIAL, AND VEHICLE MEMBER


    Additional title:

    SCHALLABSORBIERENDES MATERIAL UND FAHRZEUGELEMENT
    MATÉRIAU D'ABSORPTION ACOUSTIQUE ET ÉLÉMENT DE VÉHICULE


    Contributors:

    Publication date :

    2024-11-20


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G10K Tonerzeugungsvorrichtungen , SOUND-PRODUCING DEVICES



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