Bridged Bi-Aromatic Ligands, Catalysts, Processes For Polymerizing And Polymers Therefrom
                        
                            
                                申请人:Boussie Thomas R.
                            
                            
                                公开号:US20080269470A1
                            
                            
                                公开(公告)日:2008-10-30
                            
                            New ligands and compositions with bridged bis-aromatic ligands are disclosed that catalyze the polymerization of monomers into polymers. These catalysts with metal centers have high performance characteristics, including higher comonomer incorporation into ethylene/olefin copolymers, where such olefins are for example, 1-octene, propylene or styrene. The catalysts also polymerize propylene into isotactic polypropylene.