One-part solvent-free thermosettable blocked prepolymer composition containing a diene, together with chain extender, chain terminator and a dienophile

摘要

A one-part, solvent free, thermosettable adhesive and coating composition comprising a prepolymer terminated with blocked isocyanate groups and having a melting point below 95 DEG C., a difunctional amine or alcohol which is soluble in the prepolymer at 95 DEG C., a monofunctional amine or alcohol which is soluble in the prepolymer at 95 DEG C., with at least one of the foregoing bearing furyl or furfuryl substituents, and a bis-dieneophile.