Composite structure based on polystyrene foam and oriented polypropylene film and thermo-formed articles fabricated therefrom
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United States of America Patent
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May 23, 1989
Grant Date -
N/A
app pub date -
May 20, 1987
filing date -
May 20, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A composite structure includes a polystyrene foam substrate bonded on at least one major surface to an oriented polypropylene film employing an acrylic adhesive composition. In addition to its other advantageous characteristics, the bond strength between the polystyrene foam and the oriented polypropylene film components of the composite structure is unusually high. The composite can be readily thermoformed into a variety of useful articles such as disposable cups, plates, cartons, containers, and the like.
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Cited Art Landscape
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