DBM Di-n-butyl-maleate 105-76-0 Degussa-Oxeno Olefinchemie Plasticizer Maleic acid-di-n-butyl-ester (DBM) The unsaturated esters are monomers employed in polymerization processes for the manufacture of dispersions and paints, contributing to some extent to flexibilization. Clear, without any visible impurities Maleic acid-di-n-butyl-ester. Used in polymerization processes for the manufacture of dispersions and paints. Provides flexibilization.