US 11,732,063 B2 · Lewis base catalysts and methods thereof

Abstract

The present disclosure relates to Lewis base catalysts. Catalysts, catalyst systems, and processes of the present disclosure can provide high temperature ethylene polymerization, propylene polymerization, or copolymerization. In at least one embodiment, the catalyst compounds belong to a family of compounds comprising amido-phenolate-heterocyclic ligands coordinated to group 4 transition metals. The tridendate ligand may include a central neutral hetrocyclic donor group, an anionic phenolate donor, and an anionic amido donor. In some embodiments, the present disclosure provides a catalyst system comprising an activator and a catalyst of the present disclosure. In some embodiments, the present disclosure provides a polymerization process comprising a) contacting one or more olefin monomers with a catalyst system comprising: i) an activator and ii) a catalyst of the present disclosure.

Claims29

Dependent claims

A catalyst compound represented by Formula (I):

wherein:
M is a group 3, 4, 5, or 6 metal;
each of A1 and A2 is independently selected from the group consisting of arylene, substituted arylene, heteroarylene group, and substituted heteroarylene group;
J comprises a heterocyclic Lewis base;
E1 is selected from the group consisting of hydrocarbylene, substituted hydrocarbylene, silylene, and substituted silylene, wherein J and E1 are optionally joined to form one or more hydrocarbyl rings, substituted hydrocarbyl rings, heterocyclic rings, or substituted heterocyclic rings;
each L is independently a Lewis base;
each X is independently an anionic ligand;
n is 1, 2 or 3;
m is 0, 1, or 2;
n+m is not greater than 4;
R1 is selected from the group consisting of C1-C40 hydrocarbyl, substituted C1-C40 hydrocarbyl, a heteroatom-containing group, and substituted heteroatom-containing group;
any two L groups may be joined together to form a bidentate Lewis base;
an X group may be joined to an L group to form a monoanionic bidentate group;
and
any two X groups may be joined together to form a dianionic ligand group.

12 more elements

A process for the production of a polymer comprising:

polymerizing an alkene by contacting the alkene with a catalyst system that includes an activator and catalyst compound, wherein the catalyst compound is
represented by Formula (I):
wherein:
M is a group 3, 4, 5, or 6 metal;
each of A1 and A2 is independently selected from the group consisting of arylene, substituted arylene, heteroarylene group, and substituted heteroarylene group;
J comprises a heterocyclic Lewis base;
E1 is selected from the group consisting of hydrocarbylene, substituted hydrocarbylene, silylene, and substituted silylene, wherein J and E1 are optionally joined to form one or more hydrocarbyl rings, substituted hydrocarbyl rings, heterocyclic rings, or substituted heterocyclic rings;
each L is independently a Lewis base;
each X is independently an anionic ligand;
n is 1, 2 or 3;
m is 0, 1, or 2;
n+m is not greater than 4;
R1 is selected from the group consisting of C1-C40 hydrocarbyl, substituted C1-C40 hydrocarbyl, a heteroatom-containing group, and substituted heteroatom-containing group;
any two L groups may be joined together to form a bidentate Lewis base;
an X group may be joined to an L group to form a monoanionic bidentate group;
and
any two X groups may be joined together to form a dianionic ligand group;
and
wherein the polymerizing is performed in one or more continuous stirred tank reactors or loop reactors, in series or in parallel, at a reactor pressure of from 0.05 MPa to 1,500 MPa and a reactor temperature of from 30° C. to 230° C.

16 more elements

Dependencies are inferred from the claim text.

Lewis base catalysts and methods thereof

Life of this patent

Lewis base catalysts and methods thereof

Life of this patent

Abstract

Claims29