Activator Compositions, Their Preparation, and Their Use In Catalysis

A process for forming an activator composition, which process comprises, in an inert, anhydrous environment,

• i) forming an organoaluminum-treated support by contacting a support material and an organoaluminum compound,
• ii) contacting said organoaluminum-treated support either
• a) with a polyfunctional compound which has at least two aromatic groups in which at least two of said aromatic groups each has at least one polar monoprotic group thereon, forming a mixture, and then contacting said mixture with an aluminoxane, or
• b) with an aluminoxane, forming a mixture, and then contacting said mixture with a polyfunctional compound which has at least two aromatic groups in which at least two of said aromatic groups each has at least one polar monoprotic group thereon, or
• c) with a portion of a polyfunctional compound, forming a first mixture, contacting said first mixture with the aluminoxane, forming a second mixture, and contacting said second mixture with more polyfunctional compound,
• wherein said polyfunctional compound has at least two aromatic groups in which at least two of said aromatic groups each has at least one polar monoprotic group thereon,
• such that an activator composition is formed.