Ytterbium triflate as a new catalyst on the curing of epoxy-isocyanate based thermosets

▸ Ytterbium triflate is an active catalyst for diepoxides/diisocyanate formulations. ▸ Ytterbium triflate promotes the formation of oxazolidone, isocyanurate, urethane and allophanate groups and the polyetherification of epoxides. ▸ Diepoxides/diisocyanate formulations catalyzed by ytterbium triflate show higher pot-life than equivalent formulations catalyzed by benzyldimethylamine.