MULTILAYERED SOUND ABSORPTION MATERIAL

To provide a multilayered sound absorption material that has a high effect of absorbing a wide range of sounds including low frequency sounds.SOLUTION: A multilayered sound absorption material A has a first layer 1 composed of a permeable material, a second layer 2 that is greater in flow resistance...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	MURASE MAO, KOSUKEGAWA YOTA, NAKAJIMA TOMONORI
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM LOOMS METHODS OF WEAVING METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS PERFORMING OPERATIONS PHYSICS SOUND-PRODUCING DEVICES TEXTILES TRANSPORTING WEAVING WOVEN FABRICS
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