Three different olefinic ester resins were prepared by reacting epoxy resin with monofunctional maleamic acid i.e., N-phenyl maleamic acid and bifunctional maleamic acids namely N-(4-hydroxy phenyl)maleamic acid and N-(4-carboxy phenyl)maleamic acid. These maleamic acid compounds were prepared and characterized by FT-IR, ¹H-NMR, proton decoupled ¹³C-NMR spectroscopic techniques. Reaction of these compounds with epoxy resin followed first order. The activation energy was determined for the reaction of these compounds with epoxy resin and is in the range of 70.9 - 132.3 kJmol^-1. Rheological studies on olefinic ester resins indicated Newtonian behavior. Olefinic ester resin derived from monofunctional maleamic acid had lowest viscosity and better shelf life than bifunctional derived. These resins were diluted with 20% styrene and cured using methyl ethyl ketone peroxide and cobalt naphthenate. Thermal stability was evaluated in nitrogen atmosphere and kinetic parameters were determined.