METHOD FOR PREPARING NOVEL NATURAL OIL BASED HIGH TEMPERATURE ISOCYANURATE CONTAINING POLYURETHANE THERMOSETTING RESINS
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United States of America Patent
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Nov 5, 2015
app pub date -
Apr 27, 2015
filing date -
Apr 29, 2014
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Soy-based high temperature products, or thermoset resins, are produced by solvent free polymerization of soy polyols and polyisocyanates at room temperature. The ratio of isocyanate equivalents to polyol equivalent used in the synthesis is greater than or equal to 3. The invented soy-based products are polyisocyanurate solid materials with excellent stability at high temperature. Heat resistance of the material is influenced by ratio of soy polyol and polyisocyanate.
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