PHENOLIC RESIN-POLYISOCYANATE BINDER SYSTEMS CONTAINING A PHOSPHORUS HALIDE AND USE THEREOF

摘要

A binder containing a phenolic resin, a polyisocyanate, a curing component, and a phosphorous halide and use thereof. The binder compositions of the present invention are especially useful as molding compositions such as refractories, abrasive articles, and molding shapes such as cores and molds. Such are especially useful in obtaining foundary shapes which exhibit improved benchlife.The compositions can be cured at room temperature by employing a gaseous curing agent.