{
  "$type": "site.standard.document",
  "coverImage": {
    "$type": "blob",
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  "description": "The porous sound-absorbing material manufactured is light and has excellent heat resistance to be applicable to the exhaust nozzle etc. of a jet engine, can effectively absorb noise as that from a jet engine, over a wide range of frequencies, is free from variations in porosity, and provides stable…",
  "path": "/patents/1093620",
  "publishedAt": "2003-09-03T00:00:00.000Z",
  "site": "at://did:plc:oql6ds5vnff4ugar6rruliwd/site.standard.publication/3mn3ohu7oxx5w",
  "tags": [
    "C03C11/007",
    "ISHIKAWAJIMA HARIMA HEAVY IND [JP]"
  ],
  "textContent": "The porous sound-absorbing material manufactured is light and has excellent heat resistance to be applicable to the exhaust nozzle etc. of a jet engine, can effectively absorb noise as that from a jet engine, over a wide range of frequencies, is free from variations in porosity, and provides stable performance characteristics. An essential feature thereof is the formation of a skeleton of the material, with aggregates 5 containing voids 6.",
  "title": "POROUS SOUND ABSORBING MATERIAL AND METHOD OF MANUFACTURING THE MATERIAL"
}