Catalyst composition for olefin polymerization and preparation method for polyolefin using the same

摘要

The present invention relates to a catalyst composition comprising a novel transition metal compound and a preparation method for polyolefin using the same. The catalyst composition of the present invention has high catalytic activity for polymerization of olefin-based monomers and enables it to control the fine-structure characteristics of the polyolefin, such as molecular weight distribution, in a wide range, thereby easily providing a polyolefin with desired properties.

主权项

1. A catalyst composition for olefin polymerization, comprising:
a transition metal compound represented by the following formula 1; and a transition metal compound represented by the following formula 2: wherein M is a Group 4 transition metal; Q1 and Q2 are independently a halogen, C1-C20 alkyl, C2-C20 alkenyl, C2-C20 alkynyl, C6-C20 aryl, C1-C20 alkyl C6-C20 aryl, C6-C20 aryl C1-C20 alkyl, C1-C20 alkylamido, C6-C20 arylamido, or C1-C20 alkylidene; R1, R2, R3, R4, R5, R6, R7, R8, R9, and R10 are independently hydrogen; C1-C20 alkyl with or without an acetal, ketal, or ether group; C2-C20 alkenyl with or without an acetal, ketal, or ether group; C1-C20 alkyl C6-C20 aryl with or without an acetal, ketal, or ether group; C6-C20 aryl C1-C20 alkyl with or without an acetal, ketal, or ether group; or C1-C20 silyl with or without an acetal, ketal, or ether group, wherein R1 and R2 can be linked to each other to form a ring; R3 and R4 can be linked to each other to form a ring; and at least two of R5 to R10 can be linked to each other to form a ring; and R11, R12, and R13 are independently hydrogen; C1-C20 alkyl with or without an acetal, ketal, or ether group; C2-C20 alkenyl with or without an acetal, ketal, or ether group; C1-C20 alkyl C6-C20 aryl with or without an acetal, ketal, or ether group; C6-C20 aryl C1-C20 alkyl with or without an acetal, ketal, or ether group; C1-C20 silyl with or without an acetal, ketal, or ether group; C1-C20 alkoxy; or C6-C20 aryloxy, wherein R11 and R12, or R12 and R13 can be linked to each other to form a ring, wherein M is any one selected from the elements in Groups 3 to 10 of the periodic table; X is C1-C20 alkyl, C1-C20 alkylsilyl, C1-C20 silylalkyl, C3-C20 cycloalkyl, C6-C20aryl, C6-C20 aryl C1-C20 alkyl, C1-C20 alkyl C6-C20 aryl, C6-C20 arylsilyl, C6-C20 silylaryl, C1-C20 alkoxy, C1-C20 alkylsiloxy, C6-C20 aryloxy, halogen, amine, or tetrahydroborate; n is an integer from 1 to 5; Cp1 and Cp2 are independently a ligand with a cyclopentadienyl backbone; B does not coordinate with the M but acts as a bridge between Cp1 and Cp2, wherein B has a C1-C20 alky group, a C3-C20 cycloalkyl group, a C6-C20 aryl group, a C6-C20 aryl C1-C20 alkyl group, a C1-C20 alkyl C6-C20 aryl group, or a hydrogen atom being bonded to carbon (C), silicon (Si), or germanium (Ge); and q is an integer from 0 to 4.