Moldable sand compositions and methods for making the same
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United States of America Patent
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Nov 15, 2016
Grant Date -
Aug 13, 2015
app pub date -
Apr 22, 2015
filing date -
Apr 10, 2012
priority date (Note) -
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Abstract
The present invention relates to moldable sand compositions, methods for making the moldable sand compositions, and methods for using the moldable sand compositions. In a particular embodiment, the moldable sand composition comprises between about 70% to about 95% sand, between about 5% to about 30% water, a polar polymeric resin, a crosslinking agent, and a humectant. In an exemplary embodiment, the composition contains no oils, waxes, glycols, or rubbers. The composition is capable of becoming hardened over time in order to maintain the achieved shape, and can be re-wetted and molded again after becoming hardened.
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