5-Isobenzofurancarboxylic acid,1,3-dihydro-1,3-dioxo-,polymer with 1,3-benzenedicarbonyl dichloride,1,4-benzenedicarbonyl dichloride,2,2-dimethyl-1,3-propanediol,hexanedioyl dichloride and 1,2-propanediol
5-Isobenzofurancarboxylic acid,1,3-dihydro-1,3-dioxo-,polymer with 1,3-benzenedicarbonyl dichloride,1,4-benzenedicarbonyl dichloride,2,2-dimethyl-1,3-propanediol,hexanedioyl dichloride and 1,2-propanediol