1,3-Benzenedicarboxylic acid, polymer with 1,3-butanediol, hexanedioic acid, 2-hydroxyethyl 2-propenoate and 1,1'-methylenebis(4-isocyanatocyclohexane) 66251-73-8 67633-49-2 Methylene-4,1-cyclohexylene ester isocyanic acid, 1,3-butanediol, 1,3-benzenedicarboxylic acid, hexanedioic acid, (2-hydroxyethyl)-2-propenoate polymer