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=(TensileModulus[MPa]ofProtectiveLayerat25°C×ShoreAHardnessofProtectiveLayer)/ProtectiveLayerThickness[μm](I)
SOUND ABSORBING MATERIAL, AND VEHICLE MEMBER
2024-07-04
Patent
Electronic Resource
English
IPC: | B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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