Two-part pourable reactive prepolymeric dielectric encapsulant

Abstract From the Canadian patent

A two-part pourable composition capable of forming a dielectric, thermally stable, hydrolytically stable moisture insensitive polyurethane gel comprising in a first part an aliphatic or cycloaliphatic isocyanate and an aliphatic/naphthenic hydrocarbon oil and in a second, part a polyalkadiene polyol a dialkyl organotin catalyst, and the aliphatic/naphthenic oil. The gel is ideally suitable as a filler for communication cable splices since it is substantially inert toward molded polycarbonate connectors conventionally used in such splices.