| 摘要 |
<p>A magnesium-containing solid, obtained by contacting (1) the reaction product of: (A) metallic magnesium, (B) a halogenated hydrocarbon of the general formula RX in which R is an alkyl, aryl or cycloalkyl group having 1 to 20 carbon atoms, and X is a halogen atom, and (C) an alkoxy compound of the general formula X min mC(OR min )4-m in which X min is a hydrogen or halogen atom, or an alkyl, aryl or cycloalkyl group having 1 to 10 carbon atoms, R min is an alkyl, aryl or cycloalkyl group having 1 to 20 carbon atoms, and m is 0. 1 or 2; with (2) an organic aluminum compound, is employed as a support material for catalyst components derived from transition metal compounds. The supported catalyst components in combination with an organoaluminum co-catalysts are employed as olefin polymerization catalysts.</p> |
