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 in film formation on a metal coated plate, metal container, metal lid or the like. A mixed polyester resin comprises a polyester resin (A) with an acid value of 2 to 50 mgKOH/g and a glass transition temperature (Tg) of 35 to 100...

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Bibliographische Detailangaben
Hauptverfasser:	KANZAKI KEIZOU, ARAI MAYUMI, SANO NOBUAKI, TAKAGI NAOYUKI
Format:	Patent
Sprache:	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:	The present invention relates to a polyester coating composition used in film formation on a metal coated plate, metal container, metal lid or the like. A mixed polyester resin comprises a polyester resin (A) with an acid value of 2 to 50 mgKOH/g and a glass transition temperature (Tg) of 35 to 100 DEG C, and a polyester resin (B) with an acid value of 0 to 50mgKOH/g and a glass transition temperature (Tg) of -20 to 25 DEG C, and by forming a coating composition comprising said mixed polyester resin containing a cross-linking agent and a curing catalyst, a coating composition can be provided which has with excellent resistance to embrittlement over time, corrosion resistance, scraping resistance, retort resistance, and blocking resistance.