The present invention provides manufacturing of and the use of novel polycarbamates and polycarbamides and their condensation reaction products formed by reacting with formaldehyde as wood composite binder resins and in other applications. These resins have thermosetting capabilities and usefulness as binders for wood and other materials with superior resin properties of low cost, colorlessness, exceptionally good binding, and fast curing characteristics, as well as very low formaldehyde emissions. The newly-designed and synthesized novel starting materials for the thermosetting resins of the present invention are diethylene tricarbamide and various polycarbamates derived from corresponding polyols.
本发明提供了一种制造和使用新型聚
氨酯和聚
氨酰胺以及它们与
甲醛反应形成的缩聚反应产物作为木材复合材料粘合剂
树脂和其他应用的方法。这些
树脂具有热固性能力,可用作木材和其他材料的粘合剂,具有低成本、无色、极好的粘合性和快速固化特性以及非常低的
甲醛排放量。本发明的新型热固性
树脂的新设计和合成起始材料为二乙二酰
脲和从相应的多元醇衍生的各种聚
氨酯。