abstract |
(57) [Summary] [Object] To provide a catalyst comprising a specific organosilicon compound and a carbonyl group-containing compound as one component, which can produce a highly stereoregular poly α-olefin in a high yield. [Structure] An α-olefin polymerization catalyst comprising the following A) to D). (A) a solid catalyst component containing magnesium, titanium, a halogen and an electron donating compound as an essential component, (B) an organometallic compound, (C) an organosilicon compound having a Si—O—C bond, and (D) a carbonyl group. Compound. |