Polyester coated paperboard for forming food containers and proc

Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Physical dimension specified

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156221, 156224, 15624413, 15624417, 15624423, 220457, 220458, 220469, 427 39, 428 35, 428481, B32B 2710, B29C 1904, B05D 306

Patent

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RE0322709

ABSTRACT:
A coated paperboard product and a process for producing the same which includes corona discharge treatment of a paperboard surface and subsequent extrusion of molten polyester thereon. The resulting product has a very high degree of adhesion between the paperboard and polyester layers, and is capable of being utilized for forming pressed food trays which can be subjected to oven cooking temperatures.

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