MOLDABLE ENGINEERED STONE
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United States of America Patent
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Feb 16, 2016
Grant Date -
Mar 10, 2016
app pub date -
Sep 4, 2014
filing date -
Sep 4, 2014
priority date (Note) -
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Abstract
This invention provides a moldable engineered stone composition comprising an ethylenically unsaturated acrylic polymer capable of being covalently crosslinked, a mineral particulate, and an ionic crosslinking agent which forms ionic bonds within the syrup of unsaturated acrylic polymer via unreacted acid groups, causing thickening prior to curing and prior to the formation of covalent bonds via the double bonds of the polymer chain. The composition is then capable of being extruded and molded in a press. Articles formed by curing the composition and methods for producing the composition are also disclosed.
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