C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
C08F 4/642 (2006.01) B01J 31/14 (2006.01) B01J 31/22 (2006.01) C08F 10/02 (2006.01) C08F 4/659 (2006.01) C08F 4/6592 (2006.01) C08F 210/16 (2006.01)
Patent
CA 2311412
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.
Cette invention concerne un catalyseur et son procédé de fabrication. Le catalyseur est formé par la combinaison de deux constituants. Pour obtenir le premier constituant, on mélange sous forme de pâte un support contenant des groupes hydroxyle dans un solvant non polaire, on ajoute un composé de dialkylmagnésium, on ajoute un alcool, on ajoute un composé de métal de transition non métallocène, on élimine le solvant, puis on remélange sous forme de pâte le produit séché dans un solvant non aromatique, non polaire. Pour obtenir le deuxième constituant, on met en contact dans un solvant non aromatique, non polaire, un métallocène du groupe 4 et un composé de trialkylaluminium. On ajoute ensuite le deuxième constituant au premier constituant, on élimine les solvants puis on ajoute un alumoxane dans lequel au moins une de ses unités récurrentes [A1O(R)] contient en tant que groupe alkyle, un groupe alkyle comprenant au moins deux atomes de carbone.
Kissin Yury Viktorovich
Mink Robert Ivan
Nowlin Thomas Edward
Borden Ladner Gervais Llp
Mobil Oil Corporation
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