Patent ID: 7041756
Filing Date: 2006-05-09
Classification: C08F,Y10S

Abstract:
1. A catalyst component comprising a metallocene compound having a structure defined by the formula: wherein each THI is a tetrahydroindenyl group and at least one of the THI groups is substituted at the 2- and the 4-position, the substituent at the 4-position having a greater bulk than that or the substituent at the 2-position, R″ is a 1.1′-ethylidene or 1.2′-ethylidene structural bridge extending between the two THI groups, M is a metal selected from Group IIIB, IVB, VB or VIB metals, Q is selected from hydrocarbyl groups having from 1 to 20 carbon atoms, halogen atoms or combinations thereof and p is the valence of M minus 2 wherein the catalyst component is a heterogenous catalyst component.