Patent ID: 6518444
Filing Date: 2003-02-11
Classification: C07C,C07F,C08F,Y10S

Abstract:
A method of preparing a Group 15 containing metal polymerization catalyst compound comprising:a) preparing a ligand in accordance with Reaction (I) conducted at a temperature above 120Â° C., in the presence of a transition metal catalyst and a base â€ƒwherein: L is a Group 15 or 16 element; Y is Group 15 element; Z is a Group 15 element; R1 and R2 are independently a C1 to C20 hydrocarbon group, a heteroatom containing group having up to twenty carbon atoms, silicon, germanium, tin, lead, or phosphorus; each R3 is independently hydrogen, a hydrocarbon group, a halogen, or a heteroatom containing group; Ar is an aromatic group; and each X1 is a leaving group; and b) combining the ligand prepared in step a) with a compound represented by the formula MnXn where M is a Group 3 to 14 metal, n is the oxidation state of M, each X is an anionic group.