英文名称:2-Oxepanone, polymer with 1,4-butanediol, 5-isocyanato-1-(isocyanatomethyl) -1,3,3-trimethylcyclohexane, 1,1'-methylenebis[4-isocyanatocyclohexane] and 2,2'-oxybis[ethanol]; 2-Oxepanone, Polymer With 1,4-Butanediol, 5-Isocyanato-1-(Isocyanatomethyl) -1,3,3-Trimethylcyclohexane, 1,1'-Methylenebis[4-Isocyanatocyclohexane] And 2,2'-Oxybis[Ethanol]