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US 6,376,406 B1Granted
Catalyst compositions comprising bridged metal complexes and an activating cocatalyst
AssigneesThe Dow Chemical Company, The Regents of the University of Michigan
InventorsArthur J. Ashe, III, David D. Devore, Xinggao Fang, Kevin A. Frazier, D. Patrick Green, Jasson T. Patton, Francis J. Timmers
Life of this patent
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Abstract
A catalyst and process of polymerizing olefins using it are described, the catalyst comprising a cocatalyst and a metal complex preferably of the formulas 4-9, wherein M is a group 4 metal, Z is a boron atom, and T is one of
Claims104
A composition comprising:
- A) a Group 4 transition metal complex corresponding to the following formula:
- wherein:
- M is titanium, zirconium, or hafnium in the +4, +3, or +2 oxidation state;
- Y1 and Y2 are independently an anionic, cyclic or non-cyclic, π-bonded group, NR1, PR1;
- NR12 or PR12;
- Z is boron;
- Q is a neutral, anionic or dianionic ligand group depending an the oxidation state of M;
- j is 1, 2 or 3 depending on the oxidation state of M and the electronic charge on Q;
- T independently each occurrence is:
- R1 is independently each occurrence hydrogen, a hydrocarbyl group, a tri(hydrocarbyl)silyl group, or a tri(hydrocarbyl)silylhydrocarbyl group, said R1 groups containing up to 20 atoms not counting hydrogen;
- R5 is R1 or N(R1)2;
- and
- two R1 groups together or one or more R1 groups together with R5 may optionally be joiled to form a ring structure;
- and A
- B) an activating cocatalyst.
12 more elements
A composition comprising:
- A) a Group 4 transition metal complex corresponding to the following formula:
- wherein:
- M is titanium, zirconium, or hafnium in the +4 oxidation state;
- Y1 and Y2 are independently an anionic, cyclic or non-cyclic, π-bonded group, NR1 or PR1;
- Z is boron;
- Q is an anionic or dianionic ligand group;
- j is 1 or 2;
- T independently each occurrence is:
- R1 is independently each occurrence hydrogen, a hydrocarbyl group, a tri(hydrocarbyl)silyl group, or a tri(hydrocarbyl)silylhydrocarbyl group, said R1 groups containing up to 20 atoms not counting hydrogen;
- R5 is R1 or N(R1)2;
- and
- two R1 groups in T together or one or more R1 groups in T together with R5 may optionally be joined to form a ring structure;
- and
- B) an activating cocatalyst.
11 more elements
A composition comprising:
- A) a Group 4 transition metal complex corresponding to the following formula:
- wherein:
- M is titanium, zirconium, or hafnium in the +3, or +2 oxidation state;
- Y1 and Y2 are independently an anionic, cyclic or non-cyclic, π-bonded group, NR1, PR1;
- NR12 or PR12;
- Z is boron;
- Q is a neutral ligand group or an anionic ligand group depending on the oxidation state of M;
- j is 1 or 2;
- T independently each occurrence is:
- R1 is independently each occurrence hydrogen, a hydrocarbyl group, a tri(hydrocarbyl)silyl group, or a tri(hydrocarbyl)silylhydrocarbyl group, said R1 groups containing up to 20 atoms not counting hydrogen;
- R5 is R1 or N(R1)2;
- and
- two R1 groups in T together or one or more R1 groups in T together with R5 may optionally be joined to form a ring structure;
- and
- B) an activating cocatalyst.
12 more elements
A composition comprising:
- A) a Group 4 transition metal complex corresponding to the following formula:
- wherein:
- M is titanium, zirconium, or hafnium in the +4, +3, or +2 oxidation state;
- Y1 and Y2 are independently an anionic, cyclic or non-cyclic, π-bonded group, NR1, PR1;
- NR12 or PR12;
- Z is boron;
- Q is a neutral, anionic or dianionic ligand group depending on the oxidation state of M;
- j is 1, 2 or 3 depending on the oxidation state of M and the electronic charge on Q;
- T independently each occurrence is:
- wherein R1 is independently each occurrence hydrogen, a hydrocarbyl group, a tri(hydrocarbyl)silyl group, or a tri(hydrocarbyl)silylhydrocarbyl group, said R1 groups containing up to 20 atoms not counting hydrogen;
- R5 is R1 or N(R1)2;
- and
- two R1 groups in T together or one or more R1 groups in T together with R5 may optionally be joined to form a ring structure;
- and
- B) an activating cocatalyst.
12 more elements
A composition comprising:
- A) a Group 4 transition metal complex corresponding to the following formula:
- wherein:
- M is titanium, zirconium, or hafnium in the +4, +3, or +2 oxidation state;
- Y1 and Y2 are independently an anionic, cyclic or non-cyclic, π-bonded group, NR1, PR1;
- NR12 or PR12;
- Z is boron;
- Q is a neutral, anionic or dianionic ligand group depending on the oxidation state of M;
- j is 1, 2 or 3 depending on the oxidation state of M and the electronic charge on Q;
- T independently each occurrence is:
- R1 is independently each occurrence hydrogen, a hydrocarbyl group, a tri(hydrocarbyl)silyl group, or a tri(hydrocarbyl)silylhydrocarbyl group, said R1 groups containing up to 20 atoms not counting hydrogen;
- R5 is R1 or N(R1)2;
- and
- two R1 groups in T together or one or more R1 groups in T together with R5 may optionally be joined to form a ring structure;
- and
- B) an activating cocatalyst.
12 more elements
A composition comprising:
- a Group 4 transition metal complex corresponding to the following formula:
- wherein:
- M is titanium, zirconium, or hafnium in the +4, +3, or +2 oxidation state;
- Y1 and Y2 are independently an anionic, cyclic or non-cyclic, π-bonded group, NR1, PR1;
- NR12 or PR12;
- Z is boron;
- Q is a neutral, anionic or dianionic ligand group depending on the oxidation state of M;
- j is 1, 2 or 3 depending on the oxidation state of M and the electronic charge on Q;
- and
- T each occurrence is (CH3)2N—;
- and
- B) an activating cocatalyst.
9 more elements
A composition comprising:
- A) Group 4 transition metal complex corresponding to the following formula:
- wherein:
- M is titanium, zirconium, or hafnium in the +4, +3, or +2 oxidation state;
- Y1 and Y2 are independently an anionic, cyclic or non-cyclic, π-bonded group, NR1, PR1;
- NR12 or PR12;
- Z is boron;
- Q is a neutral, anionic or dianionic ligand group depending on the oxidation state of M;
- j is 1, 2 or 3 depending on the oxidation state of M and the electronic charge on Q;
- T independently each occurrence is:
- and two R1 groups in T together or one or more R1 groups in T together with R5 are joined to form a ring structure;
- and
- B) an activating cocatalyst.
9 more elements
A composition comprising:
- A) a Group 4 transition metal complex corresponding to the following formula:
- wherein:
- M is titanium, zirconium, or hafnium in the +4, +3, or +2 oxidation state;
- Y1 and Y2 are independently an anionic, cyclic or non-cyclic, π-bonded group, other than cyclopentadienyl, indenyl, tetrahydroindenyl or fluorenyl, NR1, PR1;
- NR12 or PR12;
- Z is boron;
- Q is a neutral, anionic or dianionic ligand group depending on the oxidation state of M;
- j is 1, 2 or 3 depending on the oxidation state of M and the electronic charge on Q;
- T independently each occurrence is:
- R1 is independently each occurrence hydrogen, a hydrocarbyl group, a tri(hydrocarbyl)silyl group, or a tri(hydrocarbyl)silylhydrocarbyl group, said R1 groups containing up to 20 atoms not counting hydrogen;
- R5 is R1 or N(R1)2;
- and
- two R1 groups together or one or more R1 groups together with R5 may optionally be joined to form a ring structure;
- and
- B) an activating cocatalyst.
12 more elements
Dependencies are inferred from the claim text.