ABSTRACT
Polyepoxides can be used as adhesives, sealants, casting resins, dipping compounds, moulding powders, paints and varnishes, powder coatings, including the matrix in reinforced composites [5.53).
Most commercial epoxy resin intermediates are derived from epichlorohydrin and bisphenol A. The basic process involves the reaction of epichlorohydrin and bisphenol A at 65°C in the presence of a caustic soda solution. Epoxy prepolymers can be cross-linked either catalytically or with reactive curing agents.
