Lion Copolymer Geismar, LLC

David G Ward

Willie Charles Burton

A homogeneous polymerization catalyst system for polymerization or copolymerization of at least one alpha olefin has a Lewis acid, an alkyl aluminum in a hexane or a heptane, and at least one dry metallocene. The at least one dry metallocene has a transition metal compound. The Lewis acid is capable of forming an ion pair with the at least one dry metallocene. The homogeneous polymerization catalyst system produces a poly alpha olefin from alpha olefin monomers or mixed alpha olefins. A produced poly alpha olefin has a kinematic viscosity at 100 degrees Celsius ranging from 1 cSt to 1000 cSt.

Homogeneous polymerization catalyst for alpha olefins

A solution process for the polymerization or copolymerization of at least one alpha olefin can include adding a Lewis acid to an alkyl aluminum in a hexane or heptane to form a coordination complex, stirring the coordination complex continuously forming a near homogeneous solution in an inert anhydrous environment, adding at least one dry metallocene to the near homogenous solution forming a soluble polymerization initiator, then stirring to form a near homogenous metallocene enriched polymerization initiator, and polymerizing an alpha olefin with the metallocene enriched polymerization initiator and optionally adding additional alkyl aluminum as a moisture scavenger or an impurities scavenger to yield a poly alpha olefin. The at least one dry metallocene can have a transition metal compound. The Lewis acid is capable of forming an ion pair with the at least one dry metallocene.

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Geismar, LA, United States of America

David G Ward