High-modulus polyisocyanurate elastomers

摘要

Novel solid polyisocyanurate polymers are disclosed which comprises the reaction product of an organic polyisocyanate, a trimerization catalyst and a polyol combination comprising from about 0.025 to about 0.15 equivalent and about 0.05 to about 0.25 equivalent, per equivalent of polyisocyanate, respectively of an ethylene oxide capped polypropyleneoxy glycol having an equivalent weight of from about 750 to about 1500 and either 1,4-butanediol or diethylene glycol.