| abstract |
(57) [Summary] (Problems corrected) [PROBLEMS] To more efficiently produce an olefin polymer when a single-site catalyst is applied to polymerization involving formation of polymer particles (eg, slurry polymerization, gas phase polymerization, etc.). Provided are a polymerization catalyst component and a polymerization catalyst to be obtained, and a more efficient method for producing an olefin polymer. SOLUTION: Prepolymerization formed by prepolymerizing an olefin using a primary catalyst obtained by contacting a modified particle (A), a transition metal compound (B), and an organometallic compound (C). Spent olefin polymerization catalyst component. An olefin polymerization catalyst comprising the prepolymerized olefin polymerization catalyst component, or an olefin polymerization catalyst obtained by contacting the prepolymerized olefin polymerization catalyst component with an organometallic compound (D); A method for producing an olefin polymer using a polymerization catalyst. |