SOUND ABSORBING MATERIAL INCLUDING A PLURALITY OF PIECES WITH PORES

Sound absorbing board (10) is made from recycled high density foam granulate (12) that has been mixed with a binder (14) and consolidated under pressure. Pores (16) are present in spaces between the granules. Each granule includes small pores (18). Sound is absorbed by thermal diffusion and viscous...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	FRENCH, EDWARD, SWIFT, MARK, JOHNATHAN, HOROSHENKOV, KIRILL, VJATCHESLAVOVITCH
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS PHYSICS SOUND-PRODUCING DEVICES
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