Metallocene catalysts, their synthesis and their use for the polymerization of olefins
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United States of America Patent
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Jan 30, 2007
Grant Date -
Jun 1, 2006
app pub date -
Dec 1, 2004
filing date -
Dec 1, 2004
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Abstract
A process for the preparation of a catalyst system includes the steps of combining a support material with a first composition which includes at least one aluminoxane in a first solvent to provide an aluminoxane loaded support; and, contacting the aluminoxane loaded support with a second composition which includes at least one metallocene compound, a second solvent, and a cocatalyst, wherein the cocatalyst includes a second portion of the at least one aluminoxane alone or in combination with an ionic compound and/or a Lewis acid.
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