Patent ID: 8541332

Claim:
An olefin polymerization catalyst comprising a thienyl-substituted silane, wherein the catalyst is a product of a reaction of the following components: (A) a solid titanium catalyst component, wherein titanium, magnesium, and halogen are main components of the solid titanium catalyst component; (B) an aluminum alkyl compound component; and (C) an organosiloxane compound component comprising two thienyl substituents, selected from at least one of compounds represented by general formula (I) below: wherein R 1 to R 6 are the same or different, and are selected from hydrogen, halogen, a linear or branched C 1 -C 20 alkyl, a C 3 -C 20 cycloalkyl, a C 6 -C 20 aryl, a C 7 -C 20 alkylaryl, or a C 7 -C 20 aralkyl; and two or more of R 1 to R 6 may be bonded with each other to form a saturated or unsaturated condensed ring structure which may be substituted by a group having the same definition as R 1 to R 6 ; R 1 to R 6 optionally contain one or more heteroatoms substituting carbon or hydrogen atoms or both, and the heteroatom is selected from nitrogen, oxygen, sulfur, silicon, phosphorus or a halogen atom; R a and R b are the same or different, and are selected from linear or branched C 1 -C 4 alkyl; and a molar ratio of the components in the catalyst is 1:50-150:5-50, based on titanium:aluminum:silicon.