Patent ID: 6656868
Filing Date: 2003-12-02
Classification: C08F,Y10S

Abstract:
A composition comprising a fumed particulate filler and a catalyst compound represented by the formula: wherein M is a Group 4, 5 or 6 metal; each X is independently an anionic leaving groups; n is the oxidation state of M; m is the formal charge of the ligand comprising Y, Z and L; Y is a Group 15 atom; Z is a Group 15 atom; L is a Group 15 atom; R1 and R2 are independently a C1 to C20 hydrocarbon group, or a heteroatom containing group wherein the heteroatom is silicon, germanium, tin, lead, or phosphorus; optionally, R1 and R2 are interconnected to each other; R3 is absent, a hydrogen, a group 14 atom containing group, a halogen, or a heteroatom containing group; R4 and R5 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; and R6 and R7 are independently absent, a hydrogen, an alkyl group, a halogen, a heteroatom, a hydrocarbyl group, or a heteroatom containing group.