Method for producing a cast of hydrated thermo-set materials with polyurethane elastomer molds
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United States of America Patent
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Issued Date -
Sep 1, 2005
app pub date -
Feb 26, 2004
filing date -
Feb 26, 2004
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Abstract
The method of the present invention is directed to solving the demolding problem during the casting of hydrated thermo-set materials. The method includes the steps of pouring a fluid thermo-set material into a mold of a polyurethane elastomer containing at least about 5 percent of a hydrophobic additive based on the total weight of the elastomer, curing the thermo-set material within the mold over a period of time, and releasing the thermo-set material from the mold.
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