Procatalyst for polymerization of olefins comprising an aminobenzoate internal donor and a 1,3-diether internal donor in a specific ratio
申请人:SABIC Global Technologies B.V.
公开号:US10730971B2
公开(公告)日:2020-08-04
A process for preparing a procatalyst for polymerization of olefins, comprising contacting a magnesium-containing support with a halogen-containing titanium compound, a first internal electron donor represented by Formula A, a second internal electron donor represented by Formula B, and an activator; wherein the molar ratio of the first internal donor to the second internal donor is between 0.01 and 0.7;
wherein in Formula A each R80 group is independently a substituted or unsubstituted aromatic group; and R81, R82, R83, R84, R85, R86 and R87 are each independently selected from a hydrogen or a hydrocarbyl group; wherein in Formula B R51 and R52 are each independently selected from a hydrogen or a hydrocarbyl group; and R53 and R54 are each independently selected from hydrogen, a halide or a hydrocarbyl group.
一种制备烯烃聚合用催化剂的工艺,包括将含镁载体与含卤钛化合物、由式 A 表示的第一内部电子供体、由式 B 表示的第二内部电子供体和活化剂接触;其中第一内部供体与第二内部供体的摩尔比在 0.01 至 0.7 之间;
其中在式 A 中,每个 R80 基团独立地为取代或未取代的芳香基团;R81、R82、R83、R84、R85、R86 和 R87 基团各自独立地选自氢或烃基;其中在式 B 中,R51 和 R52 基团各自独立地选自氢或烃基;R53 和 R54 基团各自独立地选自氢、卤化物或烃基。