申请人:——
公开号:US20030199388A1
公开(公告)日:2003-10-23
The present invention relates to catalyst components for the polymerization of olefins, and to the catalyst obtained therefrom, particularly suitable for the stereospecific polymerization of olefins, comprising Ti, Mg, halogen and an electron donor compound selected from heteroatom containing esters of malonic acids (hereroatom containing malonates). Said catalyst components when used in the polymerization of olefins, and in particular of propylene, are capable to give polymers in high yields and with high isotactic index expressed in terms of high xylene insolubility.
本发明涉及用于烯烃聚合的催化剂组分,以及由此获得的催化剂,特别适用于烯烃的立体聚合,该催化剂组分包括钛、镁、卤素和一种电子供体化合物,该电子供体化合物选自含丙二酸杂原子酯(含丙二酸异原子酯)。上述催化剂成分用于烯烃,特别是丙烯的聚合时,能够产生高产率和高同素异形指数(以高二甲苯不溶性表示)的聚合物。