METHOD FOR PREPARING NOVEL NATURAL OIL BASED HIGH TEMPERATURE ISOCYANURATE CONTAINING POLYURETHANE THERMOSETTING RESINS

摘要

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.

主权项

1. A method of making a soy-based polyisocyanurate solid thermoset polyurethane resin, comprising the steps:
a) mixing one equivalent of a soy polyol with at least 3 equivalents of a polyisocyanate at a temperature of at least room temperature; and b) forming a soy-based polyisocyanurate solid thermoset polyurethane resin that is a hard solid and substantially resistant to degradation at high temperatures.