1,3-Benzenedicarboxylic acid, polymer with 1,3-diisocyanatomethylbenzene, hexanedioic acid, hexanediol and 1,1'-methylenebis(4-isocyanatobenzene) 68630-98-8 Isophthalic acid, adipic acid, 1,6-hexanediol, toluene diisocyanate, methylenebis(4-phenylisocyanate) polymer