5-Isobenzofurancarboxylic acid,1,3-dihydro-1,3-dioxo-,polymer with 2,2-dimethyl-1,3-propanediol and 2,5-furandione,2-(1,3,3a,4,7,7a-hexahydro-1,- 3-dioxo-2H-isoindol-2-yl)ethyl ester
5-Isobenzofurancarboxylic acid,1,3-dihydro-1,3-dioxo-,polymer with 2,2-dimethyl-1,3-propanediol and 2,5-furandione,2-(1,3,3a,4,7,7a-hexahydro-1,- 3-dioxo-2H-isoindol-2-yl)ethyl ester