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Summary:Process for preparing an aqueous slurry of vesiculated granules of polyester resin; characterized in that it comprises stirring in water a solution of an unsaturated polyester resin, comprising from 2 to 50% by weight of poly (ethylene oxide) chains of average molecular weight 1,000-10,000 which are soluble in water at the processing temperature of the granules, in an ethylenically unsaturated monomer having a solubility of less than 5% by weight in water, to form a water dispersion of globules of the unsaturated polyester resin solution; and then adding to the dispersion a free radical initiator to initiate co-reaction of the unsaturated polyester resin with the ethylenically unsaturated monomer. (Machine-translation by Google Translate, not legally binding)
Bibliography:Application Number: SE19760004531