Polymeric multi-layer sheet material and tray

Details Polymeric multi-layer sheet material and tray Polymeric multi-layer sheet material and tray

1980-08-27

1982-04-27

Bell, James J.

Stock material or miscellaneous articles

Hollow or container type article

Cellular material derived from plant or animal source

206557, 219 1055E, 220405, 229 25R, 229 35R, 428 71, 428204, 428480, 4283197, B65D 500

Patent

active

043271367

ABSTRACT:
In a multi-layer sheet material from which containers adapted to heat food in microwave ovens may be erected, the sheet material comprising a core layer and a transparent surface layer on each side of the core layer, the improvement comprising an intermediate layer located between the core and at least one of the adjacent surface layers, the intermediate layer being a relatively thin layer of polyethylene terephthalate and a design printed on one side of the intermediate layer whereby the design is visible through the adjacent surface layer and is prevented by the adjacent surface layer from being physically contacted.

REFERENCES:
patent: 4063641 (1977-12-01), Kuehn et al.
patent: 4183435 (1980-01-01), Thompson et al.
patent: 4254173 (1981-03-01), Peer
patent: 4264657 (1981-04-01), Tolette

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