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...

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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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Beschreibung
Zusammenfassung:	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 friction. La présente invention concerne un panneau d'isolation phonique (10) constitué de granulés en mousse de haute densité recyclés (12) qui ont été mélangés à un liant (14) et compactés sous pression. Des pores (16) sont présents dans des espaces entre les granulés. Chaque granulé comprend de petits pores (18). Le son est absorbé par diffusion thermique et par frottement visqueux.