Polyester core materials and structural sandwich composites thereof
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United States of America Patent
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May 31, 2011
Grant Date -
Jan 1, 2004
app pub date -
Jun 27, 2002
filing date -
Jun 27, 2002
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Abstract
High-strength, chemically and thermally stable, closed-cell foams, useful as structural core materials in sandwich composites. The core materials of the invention display anisotropic properties. The core materials of the invention are amenable to vacuum-mediated resin bonding to composite skins to provide lightweight, high-strength structural sandwiches suitable for use in a variety of applications, such as marine applications, construction, aviation, rapid transit, and recreational vehicles.
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