What is Unsaturated Polyester Resin ?
Unsaturated Polyester Resin is generally a linear polymer compound with ester bonds and unsaturated double bonds, which is formed by polycondensation of unsaturated dibasic acid diols or saturated dibasic acid unsaturated diols. It is suitable for stevioside, alkaloids, etc. Extraction, separation and purification of water-soluble weakly polar substances.