CATALYST COMPONENT FOR OLEFIN POLYMERIZATION, PREPARATION METHOD THEREOF, AND CATALYST COMPRISING SAME

摘要

The present invention provides a catalyst component for olefin polymerization and a preparation method thereof, and a catalyst for olefin polymerization and an application thereof. The catalyst component for olefin polymerization comprises reaction products of the following components: (1) a solid component; (2) at least one titanium compound; and (3) at least two internal electron donors, wherein the solid component comprises a magnesium compound represented by formula (1) and an epoxide represented by formula (2), wherein R1 is a C1-C12 linear or branched alkyl; R2 and R3 are identical or different, and are independently hydrogen or unsubstituted or halogen-substituted C1-C5 linear or branched alkyl; X is halogen; m is in a range of from 0.1 to 1.9, n is in a range of from 0.1 to 1.9, and m+n=2.;

主权项

1. A catalyst component for olefin polymerization, comprising reaction products of the following components:
(1) a solid component; (2) at least one titanium compound; and (3) at least two internal electron donors; wherein the solid component comprises a magnesium compound represented by formula (1) and an epoxide represented by formula (2),wherein, RI is a C1-C12 linear or branched alkyl; RII and RIII are identical or different, and are independently hydrogen or unsubstituted or halogen-substituted C1-C5 linear or branched alkyl;
X is halogen; m is in a range of from 0.1 to 1.9, n is in a range of from 0.1 to 1.9, and m+n=2; and wherein the content of the epoxide represented by the formula (2) is in a range of from 0.01 to 0.8 moles per mole of the magnesium compound represented by the formula (1).