Synthesis of bisphenol A diglycidyl ether The most typical epoxy resins are dependant on reacting epichlorohydrin (ECH) with bisphenol A,  causing a distinct chemical compound often known as bisphenol A diglycidyl ether (normally often known as BADGE or DGEBA). Purposes of Epoxy in Production Epoxy's flexibility has designed it indispensabl