申请人:ExxonMobil Chemical Patents Inc.
公开号:US10927134B2
公开(公告)日:2021-02-23
The present disclosure provides transition metal catalysts and the respective bridged phenolate ligands contained on the catalyst, as well as, catalyst systems and polymerization processes for producing polyolefins. The catalysts and the catalyst systems provide catalytic activity values of greater than 100 kg/mmol-hr, such as greater than 400 kg/mmol-hr or greater than 500 kg/mmol-hr.
本公开提供了过渡金属催化剂和催化剂上含有的各自桥接的苯酚配体,以及生产聚烯烃的催化剂体系和聚合工艺。催化剂和催化剂体系的催化活性值大于 100 公斤/毫摩尔-小时,例如大于 400 公斤/毫摩尔-小时或大于 500 公斤/毫摩尔-小时。