{
  "$type": "site.standard.document",
  "description": "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)…",
  "path": "/patents/1394595",
  "publishedAt": "2024-11-20T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B32B25/12",
    "RESONAC CORP [JP]"
  ],
  "textContent": "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",
  "title": "SOUND ABSORBING MATERIAL, AND VEHICLE MEMBER"
}