1,3-Benzenedicarboxylic acid, polymer with hexanedioic acid, 1,1'-methylenebis(4-isocyanatobenzene) and 2,2'-oxybis(ethanol) 72276-02-9 Diethylene glycol, adipic acid, isophthalic acid, 1,1'-methylenebis(4-isocyanatobenzene) polymer