5-Isobenzofurancarboxylic acid, 1,3-dihydro-1,3-dioxo-, polymer with (chloromethyl)oxirane, 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, 5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane and 4,4'-(1-methylethylidene)bis(phenol), caprolactam-blocked 95321-64-5