Disclosed are catalyst systems and methods of making the catalyst systems/supports for the polymerization of an olefin containing a solid titanium catalyst component having a substantially spherical shape and containing an internal electron donor, a support made from a magnesium compound, an alcohol, an ether, a surfactant, and an alkyl silicate. The catalyst system may further contain an organoaluminum compound and an organosilicon compound. Also disclosed are methods of making an impact copolymer involving polymerizing an olefin to provide a polyolefin matrix and polymerizing a polyolefin rubber using a catalyst component containing a support made from a magnesium compound, an alcohol, an ether, a surfactant, and an alkyl silicate.
本发明公开了用于烯烃聚合的催化剂体系和催化剂体系/载体的制造方法,该催化剂体系/载体含有固体
钛催化剂组分,该催化剂组分基本呈球形并含有内部电子供体;载体由
镁化合物、醇、醚、表面活性剂和烷基
硅酸盐制成。催化剂体系还可进一步包含
有机铝化合物和
有机硅化合物。还公开了制造抗冲击共聚物的方法,包括使用含有由
镁化合物、醇、醚、表面活性剂和烷基
硅酸盐制成的载体的催化剂组分聚合烯烃以提供聚烯烃基体和聚合聚烯烃橡胶。