METODO MEJORADO PARA FABRICAR UN RECIPIENTE DE METAL REVESTIDO Y PRODUCTO RESULTANTE

A metal container has a seamless body with an integral bottom, formed by drawing and redrawing. At least the inside surface of the body has a resin undercoat and a top coat thereon, the latter being a reaction product of a citric acid ester and a heat-curable resin selected from epoxy, acrylic, poly...

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Bibliographische Detailangaben
Hauptverfasser:	RICHARD J. KARAS, ADELAIDA L. CARD, RAYMOND H. GOOD
Format:	Patent
Sprache:	spa
Schlagworte:	ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR 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 HANDLING THIN OR FILAMENTARY MATERIAL PACKAGES PACKAGING ELEMENTS PACKING PERFORMING OPERATIONS STORING TRANSPORTING
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Beschreibung
Zusammenfassung:	A metal container has a seamless body with an integral bottom, formed by drawing and redrawing. At least the inside surface of the body has a resin undercoat and a top coat thereon, the latter being a reaction product of a citric acid ester and a heat-curable resin selected from epoxy, acrylic, polyester and vinyl resins, save that vinyl resins are not used if the undercoat is a thermoset epoxy resin. In making the container, blanks are cut from tinplate or tin-free steel, the undercoat is applied and cured and then the citric acid ester is applied as a lubricant for the drawing process. The top coat is applied without first removing the lubricant.