Univation Technologies, LLC

Union Carbide Chemicals & Plastics Technology Corporation

Union Carbide Chemicals and Plastics Company, Inc.

Rex Eugene Murray

Simon Mawson

Clark Curtis Williams

Frederick John Karol

John Francis Szul

David James Schreck

Kersten Anne Erickson

Tae Hoon Kwack

D James Schreck

David M Lincoln

James D Schreck

David R Bassett

Robert F Eaton

James Wayne Taylor

Morteza Mokhtarzadeh

Arnold M Harrison

Thomas Andrew Upshaw

The present invention provides a catalyst precursor, a catalyst system comprising the precursor, and a polymerization method using the catalyst system, an embodiment of the precursor is selected from the following structures: wherein T is a bridging group; M is selected from Groups 3 to 13 atoms, and the Lanthanide series of atoms the Periodic Table of the Elements; Z is a coordination ligand; each L is a monovalent, bivalent, or trivalent anionic ligand; X and Y are each independently selected from nitrogen, oxygen, sulfur, and phosphorus; each R can be the same or different and is a bulky substituent that is sterically hindering with respect to X and Y.

Imino-amide catalysts for olefin polymerization

A family of novel hetrocyclic-amide type catalyst precursors useful for the polymerization of olefins, such as ethylene, higher alpha-olefins, dienes, and mixtures thereof.

Heterocyclic-amide catalyst compositions for the polymerization of olefins

Novel catalyst monoamide precursor compositions and the corresponding single site-like catalysts for olefin polymerization.

Monoamide based catalyst compositions for the polymerization of olefins

The present invention provides a catalyst precursor and catalyst system comprising the precursor, an embodiment of the precursor is selected from the following structures:

Imino-amide catalyst compositions for the polymerization of olefins

The present invention provides a catalyst precursor and catalyst system comprising the precursor, an embodiment of the precursor is selected from the following structures:wherein T is a bridging group; M is selected from Groups 3 to 7 atoms; Z is a coordination ligand; each L is a monovalent, bivalent, or trivalent anionic ligand; X and Y are each independently selected from nitrogen, oxygen, sulfur, and phosphorus; R is a non-bulky substituent that has relatively low steric hindrance with respect to X; and R' is a bulky substituent that is sterically hindering with respect to Y.

The invention provides olefin(s) polymerization catalyst compositions that include at least one tridentate ligand coordinated to the transition metal by one datively bonded heteroatom and two anionically bonded heteroatoms.

Polymerization catalyst system, polymerization process and polymer therefrom

The present invention relates to novel hetero-multimetallic catalyst precursors and catalysts for the polymerization of olefins.

Multimetallic catalyst compositions for the polymerization of olefins

Catalyst for the production of olefin polymers

Olefin polymerization catalyst system

This invention relates to a process to polymerize olefins comprising reacting olefins with a catalyst system comprising an activator, a metallocene and a second metal compound based on bidentate ligands containing heterocycle moieties.

Multiple catalyst system

Olefin polymerization catalyst

This invention relates to a process to polymerize olefins comprising contacting an olefin with a composition comprising the product of the combination of an activator and a transition metal compound provided that if the process occurs in the slurry phase then the activator and the transition metal compound are allowed to react for at least fifteen minutes before being contacted with the olefin.

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Cross Lanes, WV, United States of America

Rex Eugene Murray