Biaxially oriented polyester film to be molded and laminated on metal sheet

A biaxially oriented polyester film to be molded and laminated with a metal sheet which shows excellent moldability when it is laminated with a metal sheet and subjected to a can making process such as drawing and from which a metal can such as a drink can or food can having excellent heat resistanc...

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Bibliographische Detailangaben
Hauptverfasser:	KURIHARA HIDESHI, KOSUGE MASAHIKO
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS 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 TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ARTCOLLECTIONS [XRACs] AND DIGESTS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING
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Beschreibung
Zusammenfassung:	A biaxially oriented polyester film to be molded and laminated with a metal sheet which shows excellent moldability when it is laminated with a metal sheet and subjected to a can making process such as drawing and from which a metal can such as a drink can or food can having excellent heat resistance, retort resistance, taste and odor retention properties, impact resistance and corrosion preventing properties can be produced. This polyester film is produced from a copolyester which contains porous particles having an average particle diameter of 0.1 to 2.5 mum, a pore volume of 0.05 to 2.5 ml/g, a specific surface area of 50 to 600 m2/g and a compressive resistance of 1 to 100 MPa and has a glass transition temperature of 70° C. or higher and lower than 78° C., a melting point of 210 to 250° C. and an intrinsic viscosity of 0.50 to 0.80 dl/g.