Dimethyl-silyl-bridged-1-substituted-2-indenyl metallocene complexes for olefin polymerization

Patent metadata

Field	Value
Publication number	US-11155659-B2
Application number	US-201816500645-A
Country	US
Kind code	B2
Filing date	Apr 4, 2018
Priority date	Apr 4, 2017
Publication date	Oct 26, 2021
Grant date	Oct 26, 2021

Abstract

The invention relates to a metallocene complex according to formula A, wherein R1-R10 are independently selected from H, C1-C10 alkyl, C7-C20 Aralkyl groups, and C1-C10 alkoxy groups; wherein R11 is selected from methyl, ethyl, propyl, isopropyl, butyl, phenyl; wherein R1 and R2, R3 and R4, R4 and R5, R5 and R6, R7 and R8, R8 and R9, and/or R9 and R10 can be connected to form a ringstructure; wherein R0 is selected from a C1-C10 alkyl group or an aryl group wherein M is selected from Ti, Zr and Hf, X is an anionic ligand to M, z is the number of X groups and equals the valence of M minus 2. The invention further relates to a catalyst for preparing polyolefins, a process for polymerizing olefins and to polymers prepared by said catalyst system.

First claim

The invention claimed is:

1. A metallocene complex according to formula A:

wherein R1-R10 are independently selected from H, C1-C10 alkyl groups, C7-C20 aralkyl groups, or C1-C10 alkoxy groups;
wherein R2 may be a C6 aryl group;
wherein R11 is selected from methyl, ethyl, propyl, isopropyl, butyl, or phenyl;
wherein R1 and R2, R3 and R4, R4 and R5, R5 and R6, R7 and R8, R8 and R9,
and/or R9 and R10 may be connected to form a ring structure;
wherein R0 is selected from a C1-C10 alkyl group or an aryl group;
wherein M is selected from Ti, Zr, or Hf, X is an anionic ligand to M, z is the number of X groups and equals the valence of M minus 2.

2. A metallocene complex according to claim 1 , the metallocene complex having formula I,

wherein R1-R10 are independently selected from H, C1-C10 alkyl, C7-C20 aralkyl groups, or C1-C10 alkoxy groups;
wherein Ar is an aryl group;
wherein R11 is selected from methyl, ethyl, propyl, isopropyl, butyl, or phenyl;
wherein R1 and R2, R3 and R4, R4 and R5, R5 and R6, R7 and R8, R8 and R9,
and/or R9 and R10 may be connected to form a ring structure;
wherein M is selected from Ti, Zr, or Hf, X is an anionic ligand to M, z is the number of X groups and equals the valence of M minus 2.

3. The metallocene complex according to claim 1 , wherein M is zirconium or hafnium.

4. The metallocene complex according to claim 1 , wherein X is a methyl group, Cl, Br or I.

5. The metallocene complex according to claim 1 , wherein R1 is selected from methyl, ethyl, or isopropyl and/or R2 is a methyl, ethyl, or phenyl group and R3, R4, R5 and R6 are H.

6. The metallocene complex according to claim 1 , wherein R1 is H, when R2 is other than H.

7. The metallocene complex according to claim 1 , wherein R2 is selected from H, methyl, ethyl, phenyl, 2-methyl-1-phenyl, or 3,5-dialkyl-1-phenyl.

8. The metallocene complex according to claim 1 , wherein R2 is selected from H, methyl, ethyl, or phenyl.

9. The metallocene complex according to claim 1 , wherein R2 is H when R1 is other than H.

10. The metallocene complex according to claim 1 , wherein R5 and R6 are H atoms and wherein R1 is selected from H, methyl, ethyl, or isopropyl.

11. The metallocene complex according to claim 1 , wherein R7-R10 are independently selected from H, methyl, ethyl or methoxy.

12. The metallocene complex according to claim 1 , wherein R7-R10 are H.

13. The metallocene complex according to claim 1 , wherein the R11 is a methyl group.

14. The metallocene complex according to claim 1 , wherein the metallocene complexes is selected from the group consisting of:

15. The metallocene complex according to claim 1 , wherein the metallocene complex is immobilized on a support.

16. An olefin polymerization catalyst prepared from the metallocene complex according to claim 1 and a cocatalyst.

17. A process for the preparation of olefin polymers, the process comprising polymerizing one or more olefins in the presence of a cocatalyst and the metallocene complex according to claim 1 , wherein the metallocene complex optionally is immobilized on a support.

18. An article prepared from a polyolefin as obtained in the process according to claim 17 .

Assignees

• Sabic Global Technologies Bv

Inventors

• Friederichs Nicolaas Hendrika
• Vittoria Antonio
• Cipullo Roberta
• Busico Vincenzo
• Borisov Ilya
• Voskoboynikov Alexander
• Guzeev Bogdan A
• Mladentsev Dmitry Y
• Sharikov Mikhail I
• Uborsky Dmitry
• Coen Hendriksen

Classifications

• C08F2420/01

  Cp or analog bridged to a non-Cp X neutral donor · CPC title

• C07F17/00

  Metallocenes · CPC title

• C08F4/65912

  in combination with an organoaluminium compound · CPC title

• C08F4/65908

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

• C08F2410/01

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