BIO-BASED BINDER SYSTEM
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United States of America Patent
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Issued Date -
Dec 23, 2010
app pub date -
Nov 14, 2008
filing date -
Nov 14, 2007
priority date (Note) -
Abandoned
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Abstract
A bio-based binder system for use in preparing foundry molds. In a preferred embodiment, the system includes the use of a) a polyermizable hydroxyl-containing component comprising a saccharide, b) an isocyanate component, and c) a catalyst, and preferably amine catalyst, component adapted to catalyze the polymerization of a) and b), in the presence of a foundry aggregate such as sand. The system can be used in any suitable manner, including in either a cold box process or no bake process as described herein.
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