Synonyms: 1,3-Isobenzofurandione, polymer with 1,2-ethanediol and 2,5-furandione;1,3-isobenzofurandione, polymer with 1,2-ethanediol and2,5-furandione;1,3-Isobenzofurandione,polymer with 1,2-ethanediol and 2,5-furandione;Unsaturated polyester resin 189