Waterborne unsaturated polyester resins

The transformation of solvent soluble unsaturated polyester resins into res ins able to form stable water dispersion is presented in this paper. The me thods of modification are discussed, consisting of the introduction of pola r hydrophilic groups such as carboxylic and sulfonic ones (sodium 5-sulfona toisophthalic acid) into the resin molecule, which ensure good tolerance wi th water. Instead of styrene, glycerol monoethers of allyl alcohol and unsa turated fatty alcohols were used as reactive built-in cross-linking monomer s for resin modification. The influence of the resin composition and method of synthesis on the dispersion stability and properties of photocurable la cquer coatings obtained from the waterborne resins were investigated.