WEATHER-RESISTANT POLYESTER FILM

PROBLEM TO BE SOLVED: To provide a weather-resistant polyester film having superior hydrolysis resistance.SOLUTION: The weather-resistant polyester film is a biaxially oriented polyester film satisfying the following constituent features (1) to (4): (1) a carboxyl-terminal concentration of ≤25 eq/to...

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Bibliographische Detailangaben
Hauptverfasser:	SAWAZAKI SHINJI, IKEHATA YOSHITOMO, SHIMIZU AKIRA, INAGAKI JUN
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 INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS 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:	PROBLEM TO BE SOLVED: To provide a weather-resistant polyester film having superior hydrolysis resistance.SOLUTION: The weather-resistant polyester film is a biaxially oriented polyester film satisfying the following constituent features (1) to (4): (1) a carboxyl-terminal concentration of ≤25 eq/ton, (2) an intrinsic viscosity of the film of 0.60-0.90 dl/g, (3) the difference of breaking strength between MD direction and TD direction of ≤10 MPa, and (4) the difference of elongation on break between MD direction and TD direction of ≤10%.