申请人:——
公开号:US20040014595A1
公开(公告)日:2004-01-22
The present invention relates to a solid catalyst component for the polymerization of olefins CH
2
═CHR in which R is hydrogen or a hydrocarbon radical with 1-12 carbon atoms, comprising Mg, Ti, halogen and an electron donor selected from maleates of a particular formula. 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.
本发明涉及一种用于聚合烯烃CH2═CHR的固体催化剂组分,其中R是氢或具有1-12个碳原子的碳氢基团,包括Mg、Ti、卤素和从特定公式的马来酸酯中选择的电子给体。当在聚合烯烃,特别是丙烯的聚合中使用该催化剂组分时,能够以高收率和高异构指数的形式给出聚合物,该异构指数以高二甲苯不溶性表示。