FOAMED SHEET, ELECTRIC OR ELECTRONIC DEVICE, AND DEVICE WITH TOUCH SCREEN

There is provided a foamed sheet having the excellent impact absorbability and the excellent resistance to repetitive impacts. The foamed sheet of the present invention has an average cell diameter of 10 to 200 μm, a resiliency of 6.0 N/cm2 or less when compressed to 50% of an original thickness the...

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Bibliographische Detailangaben
Hauptverfasser:	TOKUYAMA, Hideyuki, KATO, Kazumichi
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CALCULATING CHEMISTRY COMPOSITIONS BASED THEREON COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING GENERAL PROCESSES OF COMPOUNDING LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PHYSICS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING-UP
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Beschreibung
Zusammenfassung:	There is provided a foamed sheet having the excellent impact absorbability and the excellent resistance to repetitive impacts. The foamed sheet of the present invention has an average cell diameter of 10 to 200 μm, a resiliency of 6.0 N/cm2 or less when compressed to 50% of an original thickness thereof, and a thickness recovery rate defined by the following equation of 90% or more:thickness recovery rate (%)=(thickness 0.5 seconds after compressed state is released)/(original thickness)×100original thickness: a thickness of the foamed sheet before a load is applied,thickness 0.5 seconds after compressed state is released: a thickness of the foamed sheet after a compressed state in which a load of 100 g/cm2 is applied to the foamed sheet is kept for 120 seconds followed by release of the foamed sheet from the compression and an elapse of 0.5 seconds from the release.