Multi-modal vinyl ester resins having one or more of good fracture
toughness, good processing viscosity, and low volatile organic compound
emissions are provided. The multi-modal vinyl ester resins are the
reaction product of a liquid or crystalline epoxy and an amorphous, solid
epoxy, as determined at 25.degree. C., with a vinyl carboxylic acid. The
multi-modal vinyl ester resins may contain a reactive diluent, though
generally, lower reactive diluent contents are required for such resins
than for similar, commercially available vinyl ester resins.