A method for producing a propylene-based block copolymer ensures excellent olefin polymerization activity and activity with respect to hydrogen (hydrogen response) during polymerization, and produces a propylene-based block copolymer that exhibits a high MFR, high stereoregularity, and excellent rigidity. The method includes copolymerizing propylene and an α-olefin in the presence of a catalyst that includes (I) a solid catalyst component that includes titanium, magnesium, a halogen, and a compound represented by R1O—C(═O)—O—Z—OR2, and (II) a compound represented by R3pAlQ3-p, to obtain a propylene-based block copolymer.
一种生产
丙烯基嵌段共聚物的方法可确保在聚合过程中具有优异的烯烃聚合活性和对氢的活性(氢反应),并生产出具有高 MFR、高立体规整度和优异刚性的
丙烯基嵌段共聚物。该方法包括在催化剂存在下使
丙烯和α-烯烃共聚,催化剂包括(I)固体催化剂组分,该固体催化剂组分包括
钛、
镁、卤素和由 R1O-C(═O)-O-Z-OR2 表示的化合物,以及(II)由 R3p
AlQ3-p 表示的化合物,以获得
丙烯基嵌段共聚物。