Method of making thermoformably shaped fibreboard sandwich structures
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United States of America Patent
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-
Jun 11, 1991
Grant Date -
N/A
app pub date -
Aug 25, 1989
filing date -
Aug 25, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A shaped panel and method of manufacture thereof comprises an open-cell core having multiple cells with cell walls extending perpendicularly to the opposite sides of the core. Linerboard covers one or both sides of the core with thermoplastic resin being provided as adhesive between the core and the one or more linerboards. The resulting sandwich structure is heated and shaped in a mold.
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Cited Art Landscape
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