Polymer modified unsaturated polyester or polyesteramide resins and polymer concrete made therefrom

Abstract From the Canadian patent

Polymer modified unsaturated polyester or polyesteramide resins are prepared by reacting under polymerization conditions ethylenically unsaturated polycarboxylic acids or anhydrides with water polyol, or mixtures of polyols and polyamines and a, hydrocarbon mixture comprising esterifiable hydrocarbons such as dicyclopentadiene ethylenically, unsaturated aromatic hydrocarbons such as styrene or polymerized derivatives thereof, and non-reactive hydrocarbons. The polyester or polyesteramide resins have improved properties such as reduced shrinkage upon curing. When these resins are mixed with an aggregate mixture such as gravel, sand, and silica flour polymer, concrete composition is obtained. …