AMIDINATE CATALYST COMPOUNDS, PROCESS FOR THEIR USE AND POLYMERS PRODUCED THEREFROM

摘要

This invention relates to a method to polymerize olefins comprising contacting olefins with an amidinate catalyst compound, a chain transfer agent and an activator, where the amidinate catalyst compound is represented by the formula: (amindinate)xM(A)y(L)z, wherein M is Group 4 metal; each L is, independently, a Lewis base, provided that each L is not a cyclopentadienyl group; each A is, independently, any anionic ligand, provided that each A is not a cyclopentadienyl group; x is 1, 2, or 3; y is 0, 1, 2, or 3; z is 0, 1, 2, or 3; and wherein x + y is equal to the coordination number of M, preferably 3 or 4.