Polyolefins prepared with binuclear metallocene catalysts

• Main Authors: Nguyen, An Ngoc-Michael, Lambic, Nikola S
• Format: Patent
• Language: English
• Published: 31.10.2023
• Subjects: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM; CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC CHEMISTRY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

A catalyst compound and process for olefin polymerization. The catalyst can be represented by Formula (I):wherein: M is a transition metal selected from group 3, 4, or 5 of the Periodic Table of Elements; L is a linking group selected from any one or more difunctional C1-C20 hydrocarbyl, aryl or substituted aryl groups; T is an optional bridging group; each X is a univalent anionic ligand, or two Xs are joined and bound to the metal atom to form a metallocycle ring, or two Xs are joined to form a chelating ligand, a diene ligand, or an alkylidene ligand; R1 and R2 are each independently a hydrogen atom or substituted or unsubstituted C1 to C20 hydrocarbyl group; R3, R5, R6 and R7 are each independently a hydrogen atom or a substituted or unsubstituted C1 to C20 hydrocarbyl group, and, optionally, any two of R5, R6, and R7 can be joined to form a cyclic structure; R4 is a substituted or unsubstituted aryl group; and R8, R9, R10, and R11 are each independently a substituted or unsubstituted C1 to C6 hydrocarbyl group and, optionally, R9 and R10 are joined to form a cyclic structure.