Transition metal catalysts for olefin polymerization

Patent metadata

Field	Value
Publication number	US-11021554-B2
Application number	US-201916387100-A
Country	US
Kind code	B2
Filing date	Apr 17, 2019
Priority date	Jun 27, 2014
Publication date	Jun 1, 2021
Grant date	Jun 1, 2021

Abstract

In one aspect, a chelating phosphine-phosphonic diamide (PPDA) ligand is described herein for constructing transition metal complexes operable for catalysis of olefin polymerization, including copolymerization of ethylene with polar monomer.

First claim

The invention claimed is:

1. A phosphine-phosphonic diamide (PPDA) ligand compound of Formula (I):

wherein A is selected from the group consisting of alkylene, alkenylene, arylene and heteroarylene and wherein R 1 , R 2 , R 3 , R 4 , R 5 and R 6 are independently selected from the group consisting of alkyl, heteroalkyl, cycloalkyl, heterocycloalkyl, aryl, heteroaryl, alkyl-aryl and alkyl-heteroaryl, wherein R 1 and R 2 optionally form a ring structure and any combination of R 3 , R 4 , R 5 and/or R 6 optionally form a ring structure.

2. The PPDA ligand compound of claim 1 , wherein A is selected from the group consisting of arylene and heteroarylene.

3. The PPDA ligand compound of claim 1 , wherein A is selected from the group consisting of alkylene and alkenylene.

4. The PPDA ligand compound of claim 2 , wherein R 1 and R 2 are independently selected from the group consisting of alkyl, cycloalkyl, heteroalkyl, aryl, and heteroaryl.

5. The PPDA ligand compound of claim 2 , wherein R 1 and R 2 are aryl.

6. The PPDA ligand compound of claim 2 , wherein R 1 and R 2 are alkyl.

7. The PPDA ligand compound of claim 1 , wherein R 3 -R 6 are alkyl.

8. The PPDA ligand compound of claim 2 , wherein R 3 -R 6 are alkyl.

9. The PPDA ligand compound of claim 1 , wherein a ring structure is formed by at least two of R 3 -R 6 .

10. The PPDA ligand compound of claim 1 , wherein R 3 -R 6 are independently selected from the group consisting of cycloalkyl and heterocycloalkyl.

11. A transition metal complex of Formula (II):

wherein M is a transition metal, A is selected from the group consisting of alkyl, alkenyl, aryl and heteroaryl and wherein R 1 , R 2 , R 3 , R 4 , R 5 and R 6 are independently selected from the group consisting of alkyl, heteroalkyl, cycloalkyl, heterocycloalkyl, aryl, heteroaryl, alkyl-aryl and alkyl-heteroaryl, wherein R 1 and R 2 optionally form a ring structure and any combination of R 3 , R 4 , R 5 and/or R 6 optionally form a ring structure and wherein R 7 is selected from the group consisting of alkyl and aryl and R 8 is selected from the group consisting of amine, heteroaryl, monophosphine, halo and sulfoxide and wherein X − is a non-coordinating counter anion.

12. The transition metal complex of claim 11 , wherein A is selected from the group consisting of arylene and heteroarylene.

13. The transition metal complex of claim 11 , wherein A is selected from the group consisting of alkylene and alkenylene.

14. The transition metal complex of claim 12 , wherein R 1 and R 2 are independently selected from the group consisting of alkyl, cycloalkyl, heteroalkyl, aryl, and heteroaryl.

15. The transition metal complex of claim 12 , wherein R 1 and R 2 are aryl.

16. The transition metal complex of claim 12 , wherein R 1 and R 2 are alkyl.

17. The transition metal complex of claim 11 , wherein R 3 -R 6 are alkyl.

18. The transition metal complex of claim 12 , wherein R 3 -R 6 are alkyl.

19. The transition metal complex of claim 11 , wherein a ring structure is formed by at least two of R 3 -R 6 .

20. The transition metal complex of claim 11 , wherein R 3 -R 6 are independently selected from the group consisting of cycloalkyl and heterocycloalkyl.

21. The transition metal complex of claim 11 , wherein M is selected from Group VIIIB of the Periodic Table.

Assignees

• Univ Princeton

Inventors

• Carrow Brad P
• Zhang Wei

Classifications

• C07F9/28

  with one or more P—C bonds · CPC title

• C08F220/00

  Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof · CPC title

• C08F2410/01

  Additive used together with the catalyst, excluding compounds containing Al or B · CPC title

• C08F210/02 Primary

  Ethene · CPC title

• C08F4/80

  selected from iron group metals or platinum group metals · CPC title