Back to results
US 2019/0292282 A1Published application
Metallocene Catalyst Compositions and Polymerization Process Therewith
AssigneeExxonMobil Chemical Patents Inc.
InventorsJian Yang, Peijun Jiang, Xiongdong Lian
Life of this patent
Estimating the term…
Abstract
This invention relates bisindenyl metallocene catalyst compounds having long (at least 4 carbon atoms) linear alkyl groups substituted at the two position and substituted or unsubstituted aryl groups at the four position and process using such catalyst compounds, particularly in the solution process at higher temperatures.
Claims35
A metallocene catalyst compound represented by the formula:
- wherein
- R2 and R8 are, independently, a C1 to C20 linear alkyl group, provided that at least one of R2 and R8 must have at least 4 carbon atoms;
- R4 and R10 are substituted or unsubstituted aryl groups, provided that at least one of the aryl groups is:
- 1) substituted at an othro position with at least one group selected from C1 to C40 hydrocarbyls, heteroatoms, and heteroatom containing groups and/or 2) substituted at the 3′, 4′ or 5′ position with at least one group selected from C1 to C40 hydrocarbyls, heteroatoms, and heteroatom containing groups;
- M is a group transition 2, 3 or 4 metal;
- T is a bridging group;
- each X is an anionic leaving group;
- each R1, R3, R5, R6, R7, R9, R11, R12, R13, and R14 is, independently, hydrogen, or a hydrocarbyl, substituted hydrocarbyl, halocarbyl, substituted halocarbyl, silylcarbyl, substituted silylcarbyl, germylcarbyl, or substituted germylcarbyl substituents.
5 more elements
A catalyst system comprising activator, the metallocene compound claim of 29, and optional support.
Dependencies are inferred from the claim text.