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Organo-Lewis acid as cocatalyst for cationic homogeneous Ziegler-Natta olefin polymerizations

United States Patent

6,274,752
August 14, 2001
View the Complete Patent at the US Patent & Trademark Office
Organo-Lewis acids of the formula BR'R".sub.2 wherein B is boron, R' is fluorinated biphenyl, and R" is a fluorinated phenyl, fluorinated biphenyl, or fluorinated polycyclic fused ring group, and cationic metallocene complexes formed therewith. Such complexes are useful as polymerization catalysts.
Marks; Tobin J. (Evanston, IL), Chen; You-Xian (Midland, MI)
Northwestern University (Evanston, IL)
09/ 329,431
June 10, 1999
This invention was made with Government support under Contract No. DE-FG02-86ER13511 awarded by the Department of Energy. The Government has certain rights in this invention.