221367-63-1 53160-76-2 Carbonic acid, polymer with 1,6-hexanediol, 5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane and 4,4'-methylenebis(cyclohexanamine) Isophorone diisocyanate, 4,4'-diaminodicyclohexylmethane, carbonic acid, 1,6-hexanediol polymer Isophorone diisocyanate, polymer with bis(4-aminocyclohexyl)methane, carbonic acid, and 1,6-hexanediol