{
  "$type": "site.standard.document",
  "description": "An acoustic attenuation panel including: a main layer made of a porous material and having two opposite faces; a coating layer arranged on one of the two faces of the main layer; an adhesive film, arranged at the interface between the main layer and the coating layer to assemble same. The main…",
  "path": "/patents/1298711",
  "publishedAt": "2021-09-02T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "B32B5/245",
    "ArianeGroup SAS"
  ],
  "textContent": "An acoustic attenuation panel including: a main layer made of a porous material and having two opposite faces; a coating layer arranged on one of the two faces of the main layer; an adhesive film, arranged at the interface between the main layer and the coating layer to assemble same. The main layer is a body made of melamine resin foam having a density between 6 and 6.8 kg/mand a porosity rate between 0.978 and 0.984; the coating layer is a fabric with a density between 484 and 526 kg/mand a porosity rate between 0.771 and 0.817; the adhesive film is a film made of a thermoplastic material provided with holes passing through and having a surface density between 40 g/mand 56 g/m",
  "title": "ACOUSTIC ATTENUATION PANEL WITH IMPROVED PERFORMANCES IN LOW AND MEDIUM FREQUENCIES"
}