Coating composition for metal substrates

The present invention provides novel packaging articles, e.g., food and beverage cans. Preferred cans typically comprise a body portion and an end portion, wherein at least one of the body and end portions are aluminum and are coated on at least one major surface with a coating composition of the pr...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: RARDON DANIEL E, PAREKH GIRISH G, BARTLEY, III GEORGE K, FUCHS PAUL E, O'BRIEN ROBERT M, PAULSON GREG M
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:The present invention provides novel packaging articles, e.g., food and beverage cans. Preferred cans typically comprise a body portion and an end portion, wherein at least one of the body and end portions are aluminum and are coated on at least one major surface with a coating composition of the present invention. Suitable coating compositions of the present invention comprise: one or more polyester resins, wherein at least on the polyester resins has a glass transition temperature ("Tg") less than about 50° C., and wherein the polyester resin is formed by the reaction of one or more polyacid molecules and one or more polyol molecules; and a crosslinker. The present invention also provides a method of making such cans.