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Method for providing a high strength foam structure

United States Patent Application

View the Complete Application at the US Patent & Trademark Office
Sandia National Laboratories - Visit the Intellectual Property Management and Licensing Website
Disclosed is a closed-cell polyisocyanurate foam composition capable of high compressive strength at temperatures up to C. The new composition further exhibits no loss or degradation in conventional mechanical properties--less than that which impacts the intended use. The formulation of the present invention is based on the reaction product of a isocyanate and an epoxide resin catalyzed by a mixture of a tertiary amine and a cyclic amine. Compressive strength is augmented by incorporating a large fraction of a non-reactive bulk filler into the precursor polymer gel.
Whinnery, LeRoy L. JR. (Danville, CA), Goods, Steven H. (Livermore, CA), Henderson, Craig C. (Livermore, CA), Bennett, Thomas E. (Livermore, CA)
11/ 541,074
September 29, 2006
STATEMENT OF GOVERNMENT INTEREST [0002] This invention was made with Government support under government contract no. DE-AC04-94AL85000 awarded by the U.S. Department of Energy to Sandia Corporation. The Government has certain rights in the invention, including a paid-up license and the right, in limited circumstances, to require the owner of any patent issuing in this invention to license others on reasonable terms.