FOAMED SHEET, AND METHOD AND APPARATUS FOR PRODUCING SAME

Disclosed is an unstretched foamed sheet containing a thermoplastic resin. Not less than 80% of air bubbles contained in the sheet has a diameter of 0.1-20 µm, and the porosity of the foamed sheet is 20-80%. Also disclosed are a method for producing such a foamed sheet and an apparatus suitable for...

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Bibliographische Detailangaben
1. Verfasser:	NISHIBAYASHI TOSHIYA
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL WORKING-UP
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Beschreibung
Zusammenfassung:	Disclosed is an unstretched foamed sheet containing a thermoplastic resin. Not less than 80% of air bubbles contained in the sheet has a diameter of 0.1-20 µm, and the porosity of the foamed sheet is 20-80%. Also disclosed are a method for producing such a foamed sheet and an apparatus suitable for producing such a foamed sheet. Further disclosed are a light-reflecting plate using such a foamed sheet and a display.