Univation Technologies, LLC

Union Carbide Chemicals & Plastics Technology Corporation

Thomas Henry Peterson

Timothy Todd Wenzel

David James Schreck

Dick Alan Nagaki

Simon Mawson

Eric Lucas

Gregory T Whiteker

Clark Curtis Williams

John Henry Oskam

Purna Chand Sishta

Robert D Froese

This invention relates to a method to support one or more catalyst compounds comprising contacting the catalyst compounds with a pretreatment agent comprising an aluminum alkyl and or an alumoxane in solution and thereafter contacting the combination with a supported activator.

Catalyst support method and polymerization with supported catalysts

The present invention relates to the use of at least one acid and at least one base and/or at least one reductant and at least one oxidant that when used with a polymerization catalyst in a polymerization process results in the controllable generation of a catalyst inhibitor that renders the polymerization catalyst substantially or completely inactive.

Catalyst modifiers and their use in the polymerization of olefin(s)

Catalyst precursor compounds having both (i) a polydentate ligand which comprises a cyclic moiety as well as a heteroatom and (ii) a protected hydride/hydrocarbyl ligand bonded to a metal atom, as well as olefin polymerization catalyst systems based thereupon, polymerization processes using such catalyst systems and polymers produced thereby.

Catalyst precursor and olefin polymerization processes

The present invention relates to the use of thermally triggered compounds that when used with a polymerization catalyst in a polymerization process results in the controllable generation of one or more catalyst inhibitors that renders the polymerization catalyst substantially or completely inactive.

The present invention relates to the use of at least one solid compound that when used with a polymerization catalyst in a polymerization process results in a phase change of the solid compound to a liquid that renders the polymerization catalyst substantially or completely inactive.

Catalyst modifier and its use in the polymerization of olefin(s)

The present invention relates to a Group 15 containing transition catalyst compound, a catalyst system and a supported catalyst system thereof and to a process for polymerizing olefin(s) utilizing them.

Transition metal catalyst compounds having deuterium substituted ligand and catalyst systems thereof

A catalyst precursor compound useful for the polymerization of olefins. The compound comprises a metal atom and two &pgr;-bonded aromatic ring systems which are bridged by being linked to adjacent members of a ring structure in cis fashion.

Catalyst precursor compound and olefin polymerization process using same

The invention provides new olefin(s) polymerization catalyst systems, including graphite support. The invention also provides methods of preparing the catalyst system, and to the catalyst system's use in a gas or slurry polymerization process upon scan exposure.

Support materials for use with polymerization catalysts

The invention provides new olefin(s) polymerization catalyst systems, including polytetrafluoroethylene support. The invention also provides methods of preparing the catalyst system, and to the catalyst system's use in a gas or slurry polymerization process.

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Charleston, WV, United States of America

Thomas Henry Peterson