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US 12,447,467 B2Granted
Borylimide catalysts
AssigneeSCG Chemicals Public Company Limited
InventorsPhilip Mountford, Benjamin A. Clough, Bowen Xie
Life of this patent
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Abstract
The present invention provides a borylimide catalyst and further relates to compositions comprising the borylimide catalysts and processes for the polymerisation of olefins (e.g. ethylene) using the borylimide catalysts or the compositions comprising the borylimide catalysts.
Claims12
A compound of Formula (I):
- wherein:
- M is selected from titanium, zirconium and hafnium;
- X1 and X2 are independently selected from halo, C1-C6 alkyl, and C1-C6 alkoxy;
- wherein
- X is NR10;
- the heterocyclic ring A is optionally substituted with one or more substituents selected independently from halo, hydroxy, amino, C1-C6 alkyl, C1-C6 alkoxy, C1-C6 haloalkyl, aryl and heteroaryl, wherein said aryl and heteroaryl groups are optionally substituted with one or more substituents selected independently from halo, hydroxy, amino, nitro, C1-C6 alkyl and C1-C6 haloalkyl;
- and
- R10 is an aryl group optionally substituted with one or more substituents selected independently from C1-C6 alkyl and C1-C6 haloalkyl;
- and
- Z is a tridentate ligand:
- wherein each in the tridentate ligand Z denotes a point of attachment to M.
8 more elements
Dependencies are inferred from the claim text.