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DOE OSTI · 1021891

Casting materials

Chaudhry, Anil R·Dzugan, Robert·Harrington, Richard M·Neece, Faurice D·Singh, Nipendra P
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Abstract

A foam material comprises a liquid polymer and a liquid isocyanate which is mixed to make a solution that is poured, injected or otherwise deposited into a corresponding mold. A reaction from the mixture of the liquid polymer and liquid isocyanate inside the mold forms a thermally collapsible foam structure having a shape that corresponds to the inside surface configuration of the mold and a skin that is continuous and unbroken. Once the reaction is complete, the foam pattern is removed from the mold and may be used as a pattern in any number of conventional casting processes.

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36 MATERIALS SCIENCE

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Chaudhry, Anil R, Dzugan, Robert, Harrington, Richard M, Neece, Faurice D, Singh, Nipendra P. 2011-06-14. Casting materials. https://www.osti.gov/biblio/1021891

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