THERMOFORMING POLYCARBONATE SHEET

PROBLEM TO BE SOLVED: To provide a polycarbonate sheet having excellent thermoforming properties and impact resistance and suitable for thermoforming. SOLUTION: The thermoforming polycarbonate sheet with a thickness of 1.5-2.5 mm is characterized in that the polycarbonate sheet with a viscosity aver...

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Bibliographische Detailangaben
Hauptverfasser:	KUROKI TADASHI, MARUMO TOMOFUYU
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a polycarbonate sheet having excellent thermoforming properties and impact resistance and suitable for thermoforming. SOLUTION: The thermoforming polycarbonate sheet with a thickness of 1.5-2.5 mm is characterized in that the polycarbonate sheet with a viscosity average molecular weight of 24,000-29,000 is warped in one direction when it is heated to a temperature higher than its glass transition temperature by 15-25°C for 8 min. COPYRIGHT: (C)2006,JPO&NCIPI