Heat sealed, ovenable food carton

Details Heat sealed, ovenable food carton Heat sealed, ovenable food carton

B - Operations, Transporting

65

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B65D 5/56 (2006.01) B65D 5/20 (2006.01) B65D 5/28 (2006.01) B65D 5/42 (2006.01) B65D 5/66 (2006.01) B65D 81/34 (2006.01) D21H 19/20 (2006.01) D21H 19/84 (2006.01) D21H 27/10 (2006.01) D21H 19/38 (2006.01) D21H 23/72 (2006.01)

Patent

CA 2121309

HEAT SEALED, OVENABLE FOOD CARTON ABSTRACT OF THE DISCLOSURE Lids, closures and/or cartons for distributing, marketing and heating small portions of prepared food are fabricated with a paperboard structural substrate coated with a heat activated (or sealable) coating of water soluble acrylic emulsion that is applied by means of a press in conjunction with a printing operation or, alternatively, by a coating operation separate from the printing operation. Other critical coating characteristics are that it is heat sealable to itself, to polymers such as polyethylene terephth- alate and directly to unprimed paperboard, with or without a clay coating. Additionally, the coating may be tack bonded at 250°F or greater and is mass stable below 400°F.

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