RIVESTIMENTO PER CONTENITORI OTTENUTI PER STIRATURA MULTIPLA

To protect foodstuffs against contamination in a drawn and ironed two piece can, the inside surface thereof has a protective resin coating (11) on the base metal (13). The coating is applied to a flat metal blank from which the container body is drawn and is baked before drawing at modestly elevated...

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Bibliographische Detailangaben
Hauptverfasser:	RICHARD J. KARAS, KENNETH R. RENTMEESTER, KENNETH E. CARLSON, ROBERT C. STRAND
Format:	Patent
Sprache:	ita
Schlagworte:	ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL 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 LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM PACKAGES PACKAGING ELEMENTS PACKING PERFORMING OPERATIONS PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL SPRAYING OR ATOMISING IN GENERAL STORING TRANSPORTING
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Beschreibung
Zusammenfassung:	To protect foodstuffs against contamination in a drawn and ironed two piece can, the inside surface thereof has a protective resin coating (11) on the base metal (13). The coating is applied to a flat metal blank from which the container body is drawn and is baked before drawing at modestly elevated temperatures between approximately 150 and 315 DEG C, for evaporating solvents therefrom and for curing the resin components. The coating composition includes a phenolic resin, an epoxy resin, a polyvinyl chloride/acetate copolymer and a polyvinyl chloride dispersion resin dispersed in a solvent system; solvent impurities which can react with low molecular weight sulfides are excluded. The polyvinyl chloride dispersion resin included in the composition has an intrinsic viscosity of about 1.4.