Bridged metallocene complex for olefin polymerization

Patent metadata

Field	Value
Publication number	US-9815917-B2
Application number	US-201414912631-A
Country	US
Kind code	B2
Filing date	Aug 29, 2014
Priority date	Aug 30, 2013
Publication date	Nov 14, 2017
Grant date	Nov 14, 2017

Abstract

The invention relates to a metallocene complex according to formula (1) wherein M is a metal selected from lanthanides or transition metals from group 3, 4, 5 or 6 of the Periodic System of the Elements, Q is an anionic ligand to M, k is the number of Q groups and equals the valence of M minus 2, Z 1 , Z 2 , Z 3 and Z 4 are identical or different and can be chosen from the group consisting of hydrogen and a hydrocarbon radical with 1-20 carbon atoms, and adjacent substituents Z can form a ring system together with the carbon atoms of the Cp ring to which they are bound.

First claim

The invention claimed is:

1. A composition comprising a metallocene complex according to formula (1):

wherein
M is a lanthanide metal or a transition metal of Group 3, 4, 5 or 6 of the Periodic System of the Elements,
Q is an anionic ligand to M,
k is the number of Q groups and equals the valence of M minus 2,
Z 1 , Z 2 , Z 3 and Z 4 are identical or different and are hydrogen or a hydrocarbon radical with 1-20 carbon atoms, and Z 2 and Z 3 are connected to form a 2-indenyl or 2-tetrahydroindenyl ring system together with the carbon atoms of the Cp ring to which they are bound,
wherein the metallocene complex is present on a support.

2. The composition according to claim 1 , wherein the metallocene complex is according to formula (1a):

wherein
M is a lanthanide metal or a transition metal of Group 3, 4, 5 or 6 of the Periodic System of the Elements;
Q is an anionic ligand to M;
k is the number of Q groups and equals the valence of M minus 2.

3. The composition according to claim 1 , wherein M is Ti, Zr, Hf, V or Sm.

4. The composition according to claim 1 , wherein Q is Cl or a methyl group.

5. A process for the preparation of olefin polymers, comprising polymerizing one or more olefins in the presence of the composition of claim 1 .

6. The process according to claim 5 , wherein at least one olefin is ethylene.

7. The process according to claim 5 , wherein an organoaluminum complex is present.

8. The composition according to claim 1 , wherein M is Ti, Zr or Hf.

9. The composition according to claim 1 , wherein M is Zr.

10. A process for the preparation of olefin polymers, comprising polymerizing one or more olefins in the presence of the composition according to claim 1 and a cocatalyst.

11. The process according to claim 5 , wherein at least one olefin is ethylene.

12. The composition according to claim 1 , wherein the metallocene complex is according to formula (1a):

wherein
M is Ti, Zr, Hf, V or Sm;
Q is Cl or a methyl group;
k is the number of Q groups and equals the valence of M minus 2.

13. A process for the preparation of olefin polymers, comprising polymerizing one or more olefins in the presence of the composition of claim 12 and a cocatalyst.

14. The process according to claim 13 , wherein at least one olefin is ethylene.

15. The process according to claim 13 , wherein the cocatalyst is an aluminum-containing cocatalyst.

Assignees

• Saudi Basic Ind Corp
• Sabic Global Technologies Bv

Inventors

• Sankaran Nedumbamana
• Shinge Prashant Sukumar
• Shetty Sharankumar
• Chandra Girish
• Al-Shammari Haif
• Al-Humydi Abdulaziz Hamad
• Nesakumar Edward Joseph
• Nadkarni Pradeep Jeevaji

Classifications

• C08F4/65927

  two cyclopentadienyl rings being mutually bridged · CPC title

• C08F4/65916

  supported on a carrier, e.g. silica, MgCl2, polymer · CPC title

• C07F7/00

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

• C08F110/02 Primary

  Ethene · CPC title

• C07F17/00

  Metallocenes · CPC title