Bis-phenyl-phenoxy polyolefin procatalysts having two anthracenyl ligands

Patent metadata

Field	Value
Publication number	US-12252574-B2
Application number	US-202318472617-A
Country	US
Kind code	B2
Filing date	Oct 10, 2023
Priority date	Aug 30, 2018
Publication date	Mar 18, 2025
Grant date	Mar 18, 2025

Abstract

Embodiments of this disclosure are directed to catalyst systems comprising a metal-ligand complex according to formula (I):

First claim

The invention claimed is:

1. A catalyst system comprising a metal-ligand complex according to formula (I):

where:
M is a metal chosen from zirconium or hafnium, the metal being in a formal oxidation state of +2, +3, or +4;
n is 0, 1, or 2;
when n is 1, X is a monodentate ligand or a bidentate ligand;
when n is 2, each X is independently a monodentate ligand;
the metal-ligand complex is overall charge-neutral;
L is —CH 2 (R C ) 2 CH 2 —, —CH(CH 3 )CH 2 CH(CH 3 )—, cyclohexane-1,2-diyldimethyl, or —CH 2 (CH 2 ) n CH 2 — where n is from 1 to 3;
either:
A 1 and A 2 are

or
A 1 is

and A 2 is

R 1 and R 10 are selected from the group consisting of (C 3 -C 10 )alkyl, —Si (R C ) 3 , and —Ge(R C ) 3 ;
R 2 , R 4 , R 5 , R 6 , R 7 , and R 9 are selected from the group consisting of (C 3 -C 10 )alkyl, —Si(R C ) 3 , —Ge(R C ) 3 , and —H, provided at least one of R 2 , R 4 , or R 5 are (C 3 -C 10 )alkyl, —Si(R C ) 3 , or —Ge (R C ) 3 and at least one of R 6 , R 7 , or R 9 are (C 3 -C 10 ) alkyl, —Si(R C ) 3 , or —Ge(R C ) 3 ;
R 3 and R 8 are selected from the group consisting of (C 1 -C 50 )alkyl, (C 6 -C 50 )aryl, (C 6 -C 50 )heteroaryl, and —H;
R 11 , R 12 , R 13 , R 14 , R 15 , R 16 , R 17 , and R 18 are independently selected from the group consisting of (C 1 -C 20 )alkyl, (C 1 -C 20 )heteroalkyl, —Si(R C ) 3 , —OR C , —CF 3 , halogen, and —H; and
each R C in formula (I) is independently (C 1 -C 20 )alkyl or —H.

2. The catalyst system of claim 1 , wherein:
A 1 and A 2 are

3. The catalyst system of claim 2 , wherein:
L is —CH 2 (R C ) 2 CH 2 —, —CH 2 Ge(R C ) 2 CH 2 —, —CH(CH 3 )CH 2 CH(CH 3 )—, cyclohexane-1,2-diyldimethyl, or —CH 2 (CH 2 ) n CH 2 — where n is from 1 to 3; and
R 11 and R 18 are tert-octyl or n-octyl.

4. The catalyst system of claim 2 , wherein:
L is —CH(CH 3 )CH 2 CH(CH 3 )— or —CH 2 CH 2 CH 2 —;
R 11 and R 18 are tert-octyl; and
R 12 and R 17 are halogen.

5. The catalyst system of claim 1 , wherein:
A 1 is

and A 2 is

6. The catalyst system of claim 5 , wherein A 1 and A 2 are identical.

7. The catalyst system of claim 1 , wherein:
A 1 is

and A 2 is

8. The catalyst system of claim 7 , wherein:
R 1 , R 4 , R 7 , and R 10 are (C 3 -C 10 )alkyl.

9. The catalyst system of claim 7 , wherein:
R 1 , R 4 , R 7 , and R 10 are tert-butyl, tert-octyl, or —SiMe 3 .

10. The catalyst system of claim 7 , wherein:
R 1 , R 4 , R 7 , and R 10 are tert-butyl.

11. The catalyst system of claim 7 , wherein:
R 1 , R 4 , R 7 , and R 10 are tert-butyl;
L is —CH(CH 3 )CH 2 CH(CH 3 )— or —CH 2 CH 2 CH 2 —; and
R 11 and R 18 are tert-octyl or n-octyl.

12. The catalyst system of claim 7 , wherein:
R 1 , R 4 , R 7 , and R 10 are tert-butyl;
L is —CH(CH 3 )CH 2 CH(CH 3 )— or —CH 2 CH 2 CH 2 —;
R 11 and R 18 are tert-octyl or n-octyl; and
R 12 and R 17 are halogen.

13. The catalyst system of claim 1 , wherein:
A 1 is

and A 2 is

14. The catalyst system of claim 13 , wherein:
R 1 , R 5 , R 6 , and R 10 are (C 3 -C 10 )alkyl.

15. The catalyst system of claim 13 , wherein:
R 1 , R 5 , R 6 , and R 10 are tert-butyl, tert-octyl, —SiMe 3 , or —GeMe 3 .

16. The catalyst system of claim 13 , wherein:
R 1 , R 5 , R 6 , and R 10 are tert-butyl.

17. The catalyst system of claim 13 , wherein:
R 1 , R 5 , R 6 , and R 10 are tert-butyl;
L is —CH 2 (R C ) 2 CH 2 —, —CH 2 Ge(R C ) 2 CH 2 —, —CH(CH 3 )CH 2 CH(CH 3 ), cyclohexane-1,2-diyldimethyl, or —CH 2 (CH 2 ) n CH 2 — where n is from 1 to 3; and
R 11 and R 18 are tert-octyl or n-octyl.

18. The catalyst system of claim 13 , wherein:
R 1 , R 5 , R 6 , and R 10 are tert-butyl;
Lis-CH (CH3) CH2CH (CH3)-or-CH2CH2CH2—;
R 11 and R 18 are tert-octyl or n-octyl; and
R 12 and R 17 are halogen.

19. A polymerization process comprising:
polymerizing ethylene and one or more olefins in the presence of a catalyst system according to claim 1 , under olefin polymerizing conditions to form an ethylene-based polymer.

Assignees

• Dow Global Technologies Llc

Inventors

• Figueroa Ruth
• Grigg Robert D
• Klosin Jerzy
• Vaidya Tulaza
• Iverson Carl N

Classifications

• C07F7/00

  Compounds containing elements of Groups 4 or 14 of the Periodic Table · CPC title

• C08F210/16 Primary

  Copolymers of ethene with alpha-alkenes, e.g. EP rubbers · CPC title

• C08F4/64193

  OOOO · CPC title

• C08F4/65912

  in combination with an organoaluminium compound · CPC title

• C08F4/65908 Primary

  in combination with an ionising compound other than alumoxane, e.g. (C6F5)4B-X+ · CPC title