THIXOTROPIC ISOCYANATE-TERMINATED PREPOLYMERS AND USE IN THE PREPARATION OF POLYURETHANE COATING COMPOSITIONS

摘要

THIXOTROPIC ISOCYANATE-TERMINATED PREPOLYMERSAND USE IN THE PREPARATION OF POLYURETHANECOATING COMPOSITIONSAbstract of the DisclosureLiquid thixotropic isocyanate-terminated pre-polymers are prepared by the reaction of a polyarylene poly-alkylene polyisocyanate or diphenylmethane diisocyanate withcertain graft polyols. The resulting prepolymers are par-ticularly useful in the preparation of polyurethane coatingcompositions.