Structural panel with kraft paper core between metal skins
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United States of America Patent
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-
Nov 16, 1999
Grant Date -
N/A
app pub date -
Oct 8, 1997
filing date -
Feb 10, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A structural panel comprises a metal and paper composite in which the metal outer skins have a minimum thickness of 0.005 in. exceeding foils and a maximum thickness of 0.012 in. while the paper core ranges between 0.01 in. and 0.05 in. The panel is a stiff, lightweight substitute for thicker metals and may replace light metal sheets such as aluminum with a composite in which the metal skins comprise sheets from heavier metals such as steel. The paper core is a web which is adhesively bonded to the metal skins and which may have openings to create paths for adhesive bridges between the metal skins to minimize failure caused by buckling.
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