1,3-Benzenedicarboxylic acid, polymer with 1,4-butanediol, hexanedioic acid and 1,1'-methylenebis(4-isocyanatocyclohexane) 1,4-Butanediol, methylene bis(4-cyclohexyl isocyanate), adipic acid, isophthalic acid polyurethane 4,4'-Dicyclohexylmethane diisocyanate, 1,4-butanediol, adipic acid,isophthalic acid polymer 68698-87-3 89493-32-3