Gas barrier film and method for producing same

At least one surface of a base material layer is covered with a coating layer that includes a first vinylidene chloride copolymer including a carbonyl group, with an inorganic layer being interposed between the base material layer and the coating layer. The resulting gas barrier film makes it possib...

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Bibliographische Detailangaben
Hauptverfasser:	SAIO TAKASHI, FUJIMOTO KIYONORI
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR ADHESIVES APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS CONVEYING CORRECTING FLUIDS DYES FILLING PASTES HANDLING THIN OR FILAMENTARY MATERIAL INKS LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS PACKAGES PACKAGING ELEMENTS PACKING PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING PERFORMING OPERATIONS POLISHES PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL SPRAYING OR ATOMISING IN GENERAL STORING TRANSPORTING USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	At least one surface of a base material layer is covered with a coating layer that includes a first vinylidene chloride copolymer including a carbonyl group, with an inorganic layer being interposed between the base material layer and the coating layer. The resulting gas barrier film makes it possible to improve barrier properties that are strong against gases such as water vapor, and to improve interlayer adhesion even in a layered structure having an inorganic layer and an organic layer. The integral value of a signal at 170-180 ppm in a 13C-NMR spectrum of the first vinylidene chloride copolymer may be a factor of 0.001 or higher relative to the integral value of a signal at 80-85 ppm. The first vinylidene chloride copolymer may further include a cyano group. The coating layer may further include a second vinylidene chloride copolymer in which the integral value of a signal at 170-180 ppm in a 13C-NMR spectrum is a factor of less than 0.001 relative to the integral value of a signalat 80-85 ppm. The coatin