| 摘要 |
<p>A catalyst component for polymerizing olefins, characterized by a contact product of the following components (A1), (A2) and (A3); component (A1): a contact product of, as essential components, a magnesium dihalide such as MgCl2, a titanium tetraalkoxide such as Ti(On-Bu)4 and/or a polymer thereof, and a polymeric silicone compound having the structure represented by the formula: <CHEM> (wherein R<1> denotes a hydrocarbon residue) such as methylhydropolysiloxane, component (A2): an acid halide compound such as @@@@ ortho -C6H4 (COC1)2, and component (A3): a liquid titanium compound such as TiC14 (component (a)) and/or a halogenosilicon compound such as SiC14 (component (b)), provided that the component (a) contains a halogen when the component (a) is used alone.</p> |
