Bis-phosphaguanidine and poly-phosphaguanidine ligands with group IV metal catalysts produced therefrom
申请人:Dow Global Technologies LLC
公开号:US11028190B2
公开(公告)日:2021-06-08
Embodiments are directed to bis- and poly-phosphaguanidine compounds, and the metal-ligand complexes formed therefrom, wherein the metal complexes can be used as procatalysts in polyolefin polymerization. Formulas (I) (II) and (III).