Olefin polymerization catalyst and process for producing olefin polymer with the catalyst
申请人:MITSUI CHEMICALS, INC.
公开号:EP1238989A2
公开(公告)日:2002-09-11
A novel olefin polymerization catalyst is provided which comprises (A) a transition metal compound or lanthanoid compound containing two or more atoms selected from the group consisting of boron, nitrogen, oxygen, phosphorus, sulfur, and selenium; and (B) a Lewis acid. A process for producing an olefin polymer is alsoprovided. The catalyst has a high olefin polymerization activity without a combined use of an expensive organoaluminum oxy-compound or organoboron compound, and can maintain the high activity for a long polymerization time.
提供了一种新型烯烃聚合催化剂,它包括 (A) 一种过渡金属化合物或镧系化合物,其中含有两个或两个以上选自硼、氮、氧、磷、硫和硒组成的原子;以及 (B) 一种路易斯酸。还提供了一种生产烯烃聚合物的工艺。该催化剂具有较高的烯烃聚合活性,无需同时使用昂贵的有机铝氧化合物或有机硼化合物,并能在较长的聚合时间内保持较高的活性。