COPOLYMER PRIMER FOR ALUMINIUM ALLOY SHEET FOR PRODUCING FOOD AND BEVERAGE CONTAINERS, AND METHOD FOR PRODUCING THE SHEET

• Main Authors: GUTHRIE, JOSEPH D, JOHNSON, DANIEL C, NITOWSKI, GARY A, HARENSKI, JOSEPH P
• Format: Patent
• Language: English; Hungarian
• Published: 29.10.2007
• Subjects: ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; ADHESIVES; ALLOYS; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; CHEMICAL PAINT OR INK REMOVERS; CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; 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; DIFFUSION TREATMENT OF METALLIC MATERIAL; DYES; FERROUS OR NON-FERROUS ALLOYS; FILLING PASTES; HANDLING THIN OR FILAMENTARY MATERIAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; INKS; 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; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS; USE OF MATERIALS THEREFOR; WOODSTAINS

Primer composition comprising aqueous solution containing vinylphosphonic acid-acrylic acid copolymer, is coated on aluminum oxide or aluminum hydroxide surface of an aluminum alloy sheet, to form a primer layer comprising reaction product of copolymer and aluminum oxide or hydroxide. The primer layer is coated with coating composition comprising polymer such as polyvinyl chloride, epoxies or polyester. INDEPENDENT CLAIM is also included for the following: (i) Polymer coated aluminum alloy sheet; and (ii) Aluminum alloy container body or end panel.