| 摘要 |
<p>A catalyst and method of making it are disclosed. The catalyst is made by combining two components. The first component is made by slurrying a hydroxyl group containing support in a nonpolar solvent, adding a dialkylmagnesium compound, adding an alcohol, adding a non-metallocene transition metal compound, removing the solvent, then reslurrying the dried product in a nonpolar, nonaromatic solvent. The second component is made by contacting in a nonpolar, nonaromatic solvent a group 4 metallocene and a trialkylaluminum compound. The second component is then added to the first component, the solvents removed, and an alumoxane added in which at least one of its repeating [A1O(R)] units has as its alkyl group an alkyl group of at least two carbon atoms.</p> |
