| abstract |
This invention relates to a catalyst composition suitable for a polymerization process comprising, in one embodiment, a particulate filler, mineral oil and at least one metal catalyst compound. In another embodiment, the particular filler is fumed. The catalyst Composition includes a Group 15-containing metal catalyst compound represented by the formula:wherein M is a Group 4, 5 or 6 metal;each X is independently selected from anionic leaving groups;n is the oxidation slate of M;m is the formal charge of a ligand comprising Y, Z and L;Y, Z and L are Group 15 atoms;R<1 >and R<2 >are independently a C10 to C20 hydrocarbon group, or a heteroatom containing group wherein the heteroatom is a silicon, germanium, tin, lead, or phosphorus;R<3 >is absent, a hydrogen, a group 14 atom containing group, a halogen, or a heteroatom containing group;R<4 >and R<5 >are independently an alkyl group, an aryl group, a substituted aryl group, a cyclic alkyl group, a substituted cyclic alkyl group, or a multiple ring system; andR<6 >and R<7 >are independently absent, a hydrogen, an alkyl group, a halogen, a heteroatom, a hydrocarbyl group, or a heteroatom containing group. |