Patent ID: 7388062

Claim:
A metallocene catalyst component characterized by the formula: [(Flu-SiR 2 —N—R′) 2 M] − [Q(L) p ] + (II) wherein: Flu is a substituted or unsubstituted fluorenyl group; M is a metal in Group IIIB of the Periodic Table; SiR 2 is a structural bridge between N and the 9 carbon atom of the fluorenyl group imparting stereorigidity to the component, wherein each R is the same or different and is an alkyl having from 1 to 20 carbon atoms; R′ is hydrogen or is characterized by the formula ZR $ 3 wherein Z is C or Si and R $ is a hydrocarbyl group having from 1 to 20 carbon atoms; L is a coordinating solvent; Q is an alkali metal, an alkaline earth metal or a metal in Group IIIA of the Periodic Table; and p is from 2 to 4.