The metallocene polyethylene with a relative molecular weight distribution higher than 4 could be obtained by using the combined catalyst having 1 : 1 molar ratio of APE-1/APE-2.

• 高压聚合试验中负载型APE-1和APE-2催化剂按照摩尔比1:1复配,可以得到相对分子质量分布大于4的茂金属聚乙烯。