Laminated sheet

A laminated sheet includes a first porous layer including a plurality of fibers of at least one of inorganic fiber or carbonized fiber; and a second porous layer formed of a plurality of organic fibers, wherein the laminated sheet has a surface density of greater than or equal to 400 g/m2 and less t...

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Bibliographische Detailangaben
Hauptverfasser:	Otsuka, Tetsuya, Ishiguro, Shigeki, Maikawa, Hidetoshi, Shimokawa, Kayo
Format:	Patent
Sprache:	eng
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 METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS PERFORMING OPERATIONS PHYSICS SOUND-PRODUCING DEVICES TRANSPORTING
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Beschreibung
Zusammenfassung:	A laminated sheet includes a first porous layer including a plurality of fibers of at least one of inorganic fiber or carbonized fiber; and a second porous layer formed of a plurality of organic fibers, wherein the laminated sheet has a surface density of greater than or equal to 400 g/m2 and less than or equal to 1550 g/m2, wherein the second porous layer is formed of the plurality of organic fibers having a mean diameter of fibers being greater than or equal to 0.5 μm and less than or equal to 14 μm, and wherein, expressing a total volume of solids and voids filling a unit volume of the second porous layer as 100%, a percentage of the solids is greater than or equal to 1.0% and less than or equal to 8.0%.