Transition metal complexes, production and use thereof

Patent metadata

Field	Value
Publication number	US-10138257-B2
Application number	US-201715666085-A
Country	US
Kind code	B2
Filing date	Aug 1, 2017
Priority date	Aug 26, 2016
Publication date	Nov 27, 2018
Grant date	Nov 27, 2018

Abstract

Phosphasalen transition metal complexes are disclosed for use in alkene polymerization to produce polyolefins. The transition metal complexes are represented by the formula:

wherein M is a Group 4 metal; each of X 1 and X 2 is a univalent group, such as halogen or benzyl; each of R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , R 11 , and R 12 is, independently, hydrogen, a substituted or unsubstituted C 1 -C 40 hydrocarbyl radical, etc.; and R 13 is a divalent C 1 -C 20 hydrocarbyl radical or divalent substituted C 1 -C 20 hydrocarbyl radical comprising a portion that comprises a linking backbone comprising from 2 to 18 carbon atoms linking N 1 and N 2 .

First claim

What is claimed is:

1. A transition metal complex represented by the formula:

wherein M is a Group 4 metal;
N 1 and N 2 are nitrogen;
O is oxygen;
P is phosphorus;
each of X 1 and X 2 is, independently, a univalent C 1 to C 20 hydrocarbyl radical, a functional group comprising elements from Groups 13 to 17, or X 1 and X 2 join together to form a C 4 to C 62 cyclic, polycyclic ring, or heterocyclic ring structure;
each of R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , R 11 and R 12 is, independently, hydrogen, a C 1 -C 40 hydrocarbyl radical, a C 1 -C 40 substituted hydrocarbyl radical, a functional group comprising elements from Groups 13 to 17, two or more of R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , R 11 , and R 12 optionally join together to form a C 4 to C 62 cyclic, polycyclic, or heterocyclic ring structure, or a combination thereof; and
R 13 is a divalent C 2 -C 20 hydrocarbyl radical or divalent substituted C 1 -C 20 hydrocarbyl radical comprising a portion that comprises a linking backbone comprising from 2 to 18 carbon atoms linking N 1 and N 2 .

2. The complex of claim 1 , wherein M is Zr or Hf.

3. The complex of claim 1 , wherein X 1 and X 2 are independently selected from methyl, benzyl, trimethylsilyl, neopentyl, ethyl, propyl, butyl, phenyl, hydrido, chloro, fluoro, bromo, iodo, dimethylamido, diethylamido, dipropylamido, and diisopropylamido.

4. The complex of claim 1 , wherein R 13 is a divalent C 2 -C 10 hydrocarbyl radical or divalent substituted C 2 -C 10 hydrocarbyl radical comprising a portion that comprises a linker backbone comprising from 2 to 10 carbon atoms linking or bridging N 1 and N 2 .

5. The complex of claim 1 , wherein R 13 comprises a C2 to C8 hydrocarbyl.

6. The complex of claim 1 , wherein R 13 is —CH 2 CH 2 CH 2 —.

7. The complex of claim 1 , wherein each of R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , R 11 and R 12 is, independently, a C 1 -C 20 hydrocarbyl radical.

8. The complex of claim 1 , wherein, each of R 1 , R 2 , R 3 , R 4 , R 6 , R 7 , R 8 , R 9 , R 10 , and R 11 is, independently, C 1 -C 10 alkyl or aromatic radical.

9. The complex of claim 1 , wherein each of R 5 and R 12 is, independently, C 1 -C 20 alkyl or aromatic radical.

10. The complex of claim 1 , wherein each of R 5 and R 12 is, independently, selected from the group consisting of hydrogen, methyl, ethyl, ethenyl and isomers of propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, eicosyl, adamantyl, substituted adamantyl, cyclohexyl, substituted cyclohexyl phenyl, substituted phenyl, fluorenyl, substituted fluorenyl, carbazolyl, substituted carbazolyl, naphthyl, substituted naphthyl, phenanthryl, substituted phenanthryl, anthracenyl, substituted anthracenyl, indanyl, substituted indanyl, indenyl, and substituted indenyl.

11. The complex of claim 1 , wherein one or both of R 5 and R 12 is selected from the group consisting of methyl, tert-butyl, adamantyl, substituted adamantyl, cyclohexyl, substituted cyclohexyl, phenyl, substituted phenyl, fluorenyl, substituted fluorenyl, carbazolyl, substituted carbazolyl, naphthyl, substituted naphthyl, phenanthryl, substituted phenanthryl, anthracenyl, substituted anthracenyl, indanyl, substituted indanyl, indenyl, and substituted indenyl.

12. The complex of claim 1 , wherein R 13 is a divalent C 2 -C 20 hydrocarbyl radical or divalent substituted C 2 -C 20 hydrocarbyl radical comprising a portion that comprises a linking backbone comprising from 2 to 18 carbon atoms linking N 1 and N 2 .

13. The complex of claim 1 , wherein R 13 is a divalent C 3 hydrocarbyl radical or divalent substituted C 2 -C 20 hydrocarbyl radical linking N 1 and N 2 .

14. The complex of claim 1 , wherein the transition metal complex is represented by the formula:

where M is Hf or Zr.

15. A catalyst system comprising an activator and the transition metal complex of claim 1 .

16. The catalyst system of claim 15 , wherein two or more transition metal complexes are present.

17. The catalyst system of claim 15 , wherein the activator is an alumoxane.

18. The catalyst system of claim 15 , wherein the activator is a non-coordinating anion.

19. The catalyst system of claim 15 , wherein the transition metal complex and/or the activator is supported.

20. A polymerization process to produce polyolefin comprising contacting one or more olefin monomers with the catalyst system of claim 15 and obtaining olefin polymer.

21. The process of claim 20 , wherein the monomers comprise ethylene.

22. The process of claim 20 , wherein the monomers comprise propylene.

23. The process of claim 20 , wherein the polymerization process is a solution process.

24. The process of claim 20 , wherein the polyolefin produced is an ethylene polymer.

25. The process of claim 20 , wherein the polyolefin produced is propylene polymer.

26. The catalyst system of claim 15 , wherein M is Zr or Hf; wherein X 1 and X 2 are independently selected from methyl, benzyl, trimethylsilyl, neopentyl, ethyl, propyl, butyl, phenyl, hydrido, chloro, fluoro, bromo, iodo, dimethylamido, diethylamido, dipropylamido, and diisopropylamido; and wherein R 13 is a divalent C 2 -C 10 hydrocarbyl radical or divalent substituted C 2 -C 10 hydrocarbyl radical comprising a portion that comprises a linker backbone comprising from 2 to 10 carbon atoms linking or bridging N 1 and N 2 .

27. The catalyst system of claim 15 , wherein R 13 comprises a C 2 to C 8 hydrocarbyl and each of R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 , R 9 , R 10 , R 11 and R 12 is, independently, a C 1 -C 20 hydrocarbyl radical.

28. The catalyst system of claim 15 , wherein each of R 1 , R 2 , R 3 , R 4 , R 6 , R 7 , R 8 , R 9 , R 10 , and R 11 is, independently, C 1 -C 10 alkyl or aromatic radical and each of R 5 and R 12 is, independently, C 1 -C 20 alkyl or aromatic radical.

29. The catalyst system of claim 15 , wherein each of R 5 and R 12 is, independently, selected from the group consisting of hydrogen, methyl, ethyl, ethenyl and isomers of propyl, butyl, pentyl, hexyl, heptyl, octyl, nonyl, decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, eicosyl, adamantyl, substituted adamantyl, cyclohexyl, substituted cyclohexyl phenyl, substituted phenyl, fluorenyl, substituted fluorenyl, carbazolyl, substituted carbazolyl, naphthyl, substituted naphthyl, phenanthryl, substituted phenanthryl, anthracenyl, substituted anthracenyl, indanyl, substituted indanyl, indenyl, and substituted indenyl.

30. The catalyst system of claim 15 , wherein R 13 is a divalent C 2 -C 20 hydrocarbyl radical or divalent substituted C 2 -C 20 hydrocarbyl radical comprising a portion that comprises a linking backbone comprising from 2 to 18 carbon atoms linking N 1 and N a .

31. The catalyst system of claim 15 , wherein R 13 is a divalent C 3 hydrocarbyl radical

Assignees

• Exxonmobil Chemical Patents Inc

Inventors

• Cano David A
• Atienza Crisita Carmen H

Classifications

• C08F2500/01

  High molecular weight, e.g. >800,000 Da. · CPC title

• C08F210/16 Primary

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

• C08F4/659

  Component covered by group C08F4/64 containing a transition metal-carbon bond {(C08F4/64003 - C08F4/64196 take precedence)} · CPC title

• C08F210/14

  Monomers containing five or more carbon atoms · CPC title

• C08F4/65908

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