Polymerization catalyst activator and its use in a polymerization process
AssigneeUnivation Technologies, LLC
InventorMatthew W. Holtcamp
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Abstract
Disclosed are polymerization catalyst activator compounds which include a Group 13 atom, preferably boron or aluminum, bonded to at least one heterocyclic groups. The heterocyclic group preferably contains one or more heteroatoms selected from Group 15 and/or 16, and may be unsubstituted or substituted. Preferably, the heterocyclic ligand is substituted with a halogen atom or a halogen containing group, where the halogen is preferably fluorine. Also disclosed are olefin(s) polymerization processes utilizing the invention.
Claims22
A catalyst system comprising a catalyst compound and an activator compound wherein the activator compound is represented by the formula:
- Cat+[M(JY)x]−
- wherein M is a Group 13 atom attached to a heterocyclic group (JY);
- J is a Group 15 or 16 heteroatom contained in Y;
- x is the valence of M+1;
- and
- Cat+ is a cation component;
- and wherein one or more positions on at least two heterocyclic groups (JY) is substituted with a halogen atom or a halogen atom containing group.
A catalyst system comprising a catalyst compound and an activator compound wherein the activator compound is represented by the formula:
- M(JY)x
- wherein M is a Group 13 atom attached to a heterocyclic group (JY);
- J is a Group 15 or 16 heteroatom contained in Y;
- and
- x is the valence of M;
- and
- wherein one or more positions on at least two heterocyclic groups (JY) is substituted with a halogen atom or a halogen atom containing group.
A process for polymerizing olefin(s) comprising contacting a monomer and optionally a comonomer under polymerization conditions with a catalyst system comprising an activator compound represented by the formula:
- Cat+[M(JY)x]−
- wherein M is a Group 13 atom attached to a heterocyclic group (JY);
- J is a Group 15 or 16 heteroatom contained in Y;
- x is the valence of M+1;
- and
- Cat+ is a cation component;
- and wherein one or more positions on at least two heterocyclic groups (JY) is substituted with a halogen atom or a halogen atom containing group.
A process for polymerizing olefin(s) comprising contacting a monomer and optionally a comonomer under polymerization conditions with a catalyst system comprising an activator compound represented by the formula:
- M(JY)x
- wherein M is a Group 13 atom attached to a heterocyclic group (JY);
- J is a Group 15 or 16 heteroatom contained in Y;
- and
- x is the valence of M;
- and
- wherein one or more positions on at least two heterocyclic groups (JY) is substituted with a halogen atom or a halogen atom containing group.
Dependencies are inferred from the claim text.