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Monolithic hurricane resistant structural panels made from low density composites

United States Patent Application

20050138891
A1
View the Complete Application at the US Patent & Trademark Office
A three dimensional composite panel structure is provided having a thickness less than about 22.5 cm, overall density less than 0.2 g/cm, and exhibiting a global modulus greater than 1.2 GPa and stiffness greater than 15 kN-m.sup.2. The composite panel structure includes at least two fiber-reinforced mats interconnected in a spaced substantially parallel configuration by a skeletal web and a closed cell foam filling the spaces between the panels. The fiber-reinforced mats include a plurality of fibers in a low viscosity cured thermosetting resin matrix.
Wool, Richard P. (Newark, DE), Dweib, Mahmound A. (Beit Sahour, IL), Shenton, Harry W. III (Lincoln University, PA), Chapas, Richard B. (Elkton, MD)
10/ 965,411
October 14, 2004
[0002] This invention was made under a project entitled Affordable Composites from Renewable Sources sponsored by the National Science Foundation (NSF) and the Department of Energy (DoE).