Casting materials

Patent · Tue Jun 14 00:00:00 EDT 2011

OSTI ID:1021891

Chaudhry, Anil R ^[1]; Dzugan, Robert ^[2]; Harrington, Richard M ^[2]; Neece, Faurice D ^[3]; Singh, Nipendra P ^[4]

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1. Xenia, OH
2. Cincinnati, OH
3. Lyndurst, OH
4. Pepper Pike, OH

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.

• Research Organization: Cleveland Tool and Machine
• Sponsoring Organization: USDOE
• DOE Contract Number: FG36-04GO14332
• Assignee: Fopat LLC (Dayton, OH)
• Patent Number(s): 7,958,932
• Application Number: 12/167,546
• OSTI ID: 1021891
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE