1,4-Benzenedicarboxylic acid, polymer with 2,2-dimethyl-1,3-propanediol, 1,3-dihydro-1,3-dioxo-5-isobenzofurancarboxylic acid, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol and 5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane, caprolactam-blocked 95321-54-3