PROCESS FOR PRODUCING STRETCHED THERMOPLASTIC POLYESTER RESIN SHEET

PROBLEM TO BE SOLVED: To provide a process for producing a stretched thermoplastic polyester resin sheet, capable of stably producing the same that is flat and free of wrinkle-like irregularities on the surface. SOLUTION: The process for producing the stretched thermoplastic polyester resin sheet is...

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Bibliographische Detailangaben
Hauptverfasser:	MAESAKO HIROSHI, YAGI KOSEI, OGASAWARA SHIGERU, NAKAMURA AKIRA
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 process for producing a stretched thermoplastic polyester resin sheet, capable of stably producing the same that is flat and free of wrinkle-like irregularities on the surface. SOLUTION: The process for producing the stretched thermoplastic polyester resin sheet is characterized by supplying a long amorphous thermoplastic polyester resin sheet between a pair of rotating rolls to conduct rolling and then pulling the obtained rolled thermoplastic polyester resin sheet at a speed higher than the rotational speed of the rolls and at a speed 1.2 times or less of that. COPYRIGHT: (C)2010,JPO&INPIT