39277-72-0 9068-94-4 Adipic acid, 1,4-butanediol, toluenediisocyanate polymer Adipic acid, polymer with 1,4-butandiol and toluenediisocyanate Hexanedioic acid, 1,4-butanediol, toluene diisocyanate polymer Hexanedioic acid, polymer with 1,4-butanediol and 1,3-diisocyanatomethylbenzene