COATING COMPOSITION, AND COATED METAL PLATE, METAL CONTAINER AND METAL LID FORMED BY COATING WITH SAID COATING COMPOSITION

The present invention relates to a polyester coating composition used for forming a coating film of a coated metal plate, a metal container, a metal closure, etc. The coating composition has a crosslinking agent and a curing catalyst incorporated into a mixed polyester resin comprising a mixture of...

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Bibliographische Detailangaben
Hauptverfasser:	TAKAGI, Naoyuki, SANO, Nobuaki, KANZAKI, Keizou, ARAI, Mayumi
Format:	Patent
Sprache:	eng ; fre ; ger
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:	The present invention relates to a polyester coating composition used for forming a coating film of a coated metal plate, a metal container, a metal closure, etc. The coating composition has a crosslinking agent and a curing catalyst incorporated into a mixed polyester resin comprising a mixture of a polyester resin (A) having an acid value of 2 to 50 mg KOH/g and a glass transition temperature (Tg) of 35 to 100°C and a polyester resin (B) having an acid value of 0 to 50 mg KOH/g and a glass transition temperature (Tg) of -20 to 25°C. Thus, a coating composition excellent in resistance to embrittlement over time, corrosion resistance, scrape resistance, retort resistance, and blocking resistance can be provided.