英文名称:2H-Azepin-2-one, hexahydro-, polymer with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, 5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane and 2,2-oxybis(ethanol); 2H-Azepin-2-one, hexahydro-, polymer with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, 5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane and 2,2’-oxybis[ethanol]