Catalysts containing at least one heterocyclic ligand for improving the catalysts' performance of olefin polymerization
AssigneeEquistar Chemicals, LP
InventorsShaotian Wang, Clifford C. Lee, Mark P. Mack
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Abstract
The present invention provides a non-metallocene catalyst comprising a complex having one or more ligands coordinated a transition metal. The catalyst contains substituents bonded to the transition metal through a heteroatom such as oxygen or sulfur. Furthermore, the complex includes a Group 3 to 10 transition or lanthanide metal and one or more anionic or neutral ligands in an amount that satisfies the valency of the metal such that the complex has a net zero charge. The present invention also discloses a method for preparing the catalyst and polymerizing olefins utilizing the catalyst of the present invention.
Claims39
A catalyst comprising a complex having Formula I:
- 19
- wherein
- M is a metal selected from Groups 3 to 10 and the lanthanide series of the Periodic Table;
- R1, R2, R3, R4, and R5 are independently hydrogen, C1-10 alkyl, C6-10 aryl, C7-15 aralkyl, C1-10 alkoxy, C1-10 alkylamino, or C2-20 dialkylamino each of these groups optionally substituted with halogen, cyano, C1-4 alkoxy, or C1-4 alkyl;
- Y is a heteroatom capable of attaching to M;
- and
- La and Lb are each independently an anionic or neutral ligand wherein La and Lb are optionally bridged together with an alkylene or heteroalkylene.
A catalyst comprising a complex having Formula II:
- 20
- wherein
- M is a metal selected from Groups 3 to 10 or the lanthanide series of the Periodic Table;
- R1, R2, R3, R4, and R5 are independently hydrogen, C1-10 alkyl, C6-10 aryl, C7-15 aralkyl, C1-10 alkoxy, C1-10 alkylamino, or C2-20 dialkylamino each of these groups optionally substituted with halogen, cyano, C1-4 alkoxy, or C1-4 alkyl;
- Y is a heteroatom capable of attaching to M;
- and
- La and Lb are each independently an anionic or neutral ligand wherein La and Lb are optionally bridged together with an alkylene or heteroalkylene.
An olefin polymerization process, the process comprising:
- 1) mixing in a reaction vessel a solvent, an activator and a catalyst having formula I:
- 21
- wherein
- M is a metal selected from Groups 3 to 10 or the lanthanide series of the Periodic Table;
- R1, R2, R3, R4, and R5 are independently hydrogen, C1-10 alkyl, C6-10 aryl, C7-15 aralkyl, C1-10 alkoxy, C1-10 alkylamino, or C2-20 dialkylamino each of these groups optionally substituted with halogen, cyano, C1-4 alkoxy, or C1-4 alkyl;
- Y is a heteroatom capable of attaching to M;
- and
- La and Lb are each independently an anionic or neutral ligand wherein La and Lb are optionally bridged together with an alkylene or heteroalkylene;
- and
- 2) introducing an olefin into the reaction vessel, wherein at least two molecules of the olefin are coupled together.
A process for preparing a catalyst having Formula I:
- 22
- the process comprising reacting a compound with Formula A:
- 23
- with a compound having Formula B or Formula D:
- 24
- wherein
- M is a metal selected from Groups 3 to 10 or the lanthanide series of the Periodic Table;
- R1, R2, R3, R4, and R5 are independently hydrogen, C1-10 alkyl, C6-10 aryl, C7-15 aralkyl, C1-10 alkoxy, C1-10 alkylamino, or C2-20 dialkylamino each of these groups optionally substituted with halogen, cyano, C1-4 alkoxy, or C1-4 alkyl;
- Z is Li, Na, or K;
- and
- Y is a heteroatom capable of attaching to M;
- La and Lb are each independently an anionic or neutral ligand wherein La and Lb are optionally bridged together with an alkylene or heteroalkylene.
A process for preparing a compound having Formula I:
- 25
- the processing comprising, reacting a compound with Formula C:
- 26
- with a compound having Formula B:
- 27
- wherein
- M is a metal selected from Groups 3 to 10 or the lanthanide series of the Periodic Table;
- R1, R2, R3, R4, and R5 are independently hydrogen, C1-10 alkyl, C6-10 aryl, C7-15 aralkyl, C1-10 alkoxy, C1-10 alkylamino, or C2-20 dialkylamino each of these groups optionally substituted with halogen, cyano, C1-4 alkoxy, or C1-4 alkyl;
- Y is a heteroatom capable of attaching to M;
- and
- La and Lb are each independently an anionic or neutral ligand wherein La and Lb are optionally bridged together with an alkylene or heteroalkylene.
A process for preparing a compound having Formula I:
- 28
- the processing comprising, reacting a compound with Formula A:
- 29
- with a compound having Formula B′:
- 30
- wherein
- M is a metal selected from Groups 3 to 10 or the lanthanide series of the Periodic Table;
- Ar is substituted or unsubstituted hydrocarbon having a least one phenyl;
- Y is a heteroatom capable of attaching to M;
- and
- La and Lb are each independently an anionic or neutral ligand wherein La and Lb are optionally bridged together with an alkylene or heteroalkylene.
Dependencies are inferred from the claim text.