申请人:Basell Poliolefine Italia S.r.l.
公开号:US07544748B2
公开(公告)日:2009-06-09
The present invention relates to a solid catalyst component for the polymerization of olefins CH2═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 β-keto-ester derivatives 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CH2═CHR中的烯烃聚合的固体催化剂组分,其中R是氢或1-12个碳原子的碳氢基团,包括Mg、Ti、卤素和从特定公式的β-酮酸酯衍生物中选择的电子给体。当在烯烃聚合,特别是丙烯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高分子。该高分子以高二甲苯不溶性的形式表达。