Liquid catalysts for rapid polymerization of liquid compositions bases on polyisocyanates and epoxides

摘要

The present invention relates to quaternary (beta)-hydroxy-alkyl-ammonium halides and quaternary (beta)-hydroxy-cycloalkylammonium halides, which are liquid at temperatures lower than 60 degrees C., are easily and rapidly miscible in liquid epoxides, as well as in liquid poly-isocianates, generating liquid compositions which spontaneously polymerize, with fast polymerization rate, already at temperatures comprised within the range of from 0 degrees C. to 60 degrees C., yielding a solid, insoluble polymeric material endowed with very high values of softening temperature.