PPG-66 TEA Soybean Oil Maleate is a polymer made in two steps. First, Glycine Soja Oil is reacted with Maleic Anhydride. Then, separately, Triethanolamine is reacted with an average of 66 mols of propylene oxide. The propoxylated triethanolamine is reacted with the anhydride groups on the soybean oil derivative to produce the final product.