Patent ID: 10730038

Abstract:
Disclosed herein is a catalyst compound represented by Formula (I) or Formula (II): M is a group 4 metal. Each of R1, R2, R3, R4, R5, R6, R7, R8, and R9 is independently hydrogen, or a C1-C50 substituted or unsubstituted hydrocarbyl, halocarbyl, silylcarbyl, alkoxyl, siloxyl, or one or more of R1 and R2, R2 and R3, R3 and R4, R5 and R6, R6 and R7, and R7 and R8 are joined to form cyclic a saturated or unsaturated ring. Each X is independently a halide or C1-C50 substituted or unsubstituted hydrocarbyl, hydride, amide, alkoxide, sulfide, phosphide, halide, or a combination thereof, or two Xs are joined together to form a metallocycle ring, or two Xs are joined to form a chelating ligand, a diene ligand, or an alkylidene. Also disclosed is a method for using the catalyst compound in a catalyst system to produce polyolefin polymers.