Univation Technologies, LLC

Exxonmobil Chemical Patents Inc.

Massachusetts Institute of Technology

Exxonmobil Chemicals Patents, Inc.

Univation Technologies, Llc, (us)

David H McConville

John Francis Szul

Simon Mawson

Donald R Loveday

Tae Hoon Kwalk

Kersten Anne Terry

Mark Gregory Goode

Timothy Todd Wenzel

Timothy R Lynn

Sun-Chueh Kao

Robert J Jorgensen

John Henry Oskam

Matthew Gary McKee

Robert Harold Vogel

Frederick John Karol

David James Schreck

Matthew Cornyn Kuchta

Robert Tan Li

Kersten Anne Erickson

Tae Hoon Kwack

Anne Marie Lapointe

James M Longmire

Tom Boussie

Matthew William Holtcamp

Thomas R Boussie

Gary Michael Diamond

Francis Charles Rix

Eric L Dias

Keith Hall

Vince J Murphy

John F Walzer, Jr

Xiaohong Bei

Lily Joy Ackerman

Pu Sun

Anthony Nicholas Speca

Richard Royce Schrock

George Rodriguez

Terry John Burkhardt

Vincent J Murphy

Susan Jessica Schofer

Dawn E Verdugo

Zerong Lin

David A Cano

Jaimes Sher

Stanley J Katzen

Anne M Lapointe

Frank C Rix

Lily J Ackerman

Keith A Hall

Matthew Kuchta

John Walzer

Matthew C Kuchta

Anne M La Pointe

Catalyst compositions and methods, useful in polymerization processes, utilizing at least two metal compounds are disclosed. At least one of the metal compounds is a Group 15 containing metal compound and the other metal compound is preferably a bulky ligand metallocene-type catalyst. The invention also discloses a new polyolefin, generally polyethylene, particularly a multimodal polymer and more specifically, a bimodal polymer, and its use in various end-use applications such as film, molding and pipe.

Catalyst composition, method of polymerization, and polymer therefrom

The present invention relates to a Group 15 containing metal catalyst compound having a substituted hydrocarbon leaving group, a catalyst system and a supported catalyst system thereof and to a process for polymerizing olefin(s) utilizing them.

Group 15 containing transition metal catalyst compounds, catalyst systems and their use in a polymerization process

The present invention is directed to a bimodal polyethylene comprising ethylene derived units and units derived from at least one of a Cto Colefin; wherein the polyethylene has a density of from 0.940 to 0.970 g/cm; an I/Iof 80 or more; a residual Group 4 metal content of 2.0 ppm or less: a Mw/Mn of from 20 to 60; and wherein the polyethylene comprises a high molecular weight component and a low molecular weight component, the high molecular weight component present from 40 to 60 weight percent based on the total polyethylene, and wherein the bimodal polyethylene has a weight avenge molecular weight Mw of 180,000 a.m.u. or more.

Bimodal high density polyethlyene

The present invention provides a method of producing oligomers of olefins, comprising reacting olefins with a catalyst under oligomerization conditions. The catalyst can be the product of the combination of a chromium compound and a pyridyl amine or a heteroaryl-amine compound. In particular embodiments, the catalyst compound can be used to trimerize or tetramerize ethylene to 1-hexene, 1-octene, or mixtures of 1-hexene and 1-octene.

Methods for oligomerizing olefins

The present invention provides a method of producing oligomers of olefins, comprising reacting olefins with a catalyst under oligomerization conditions. The catalyst can be the product of the combination of a chromium compound and a heteroaryl-amine compound. In particular embodiments, the catalyst compound can be used to trimerize or tetramerize ethylene to 1-hexene, 1-octene, or mixtures of 1-hexene and 1-octene.

Methods of oligomerizing olefins

This invention relates to a catalyst compound represented by the formula: wherein: This invention also relates to catalyst systems comprising the above catalyst compound and a activator and the use of such catalyst systems to polymerize monomers, including olefin monomers.

Catalyst compound containing divalent tridentate ligand

This invention relates to a catalyst support comprising the result of the combination of:

Hydrophobization and silica for supported catalyst

Disclosed are methods of producing di-, tri- or tetrabenzyl-metal compounds comprising combining a metal salt with a (benzyl)MgXcompound at from less than 30&#xb0; C., wherein n is 1 or 2 and X is a monoanionic group; wherein the combining takes place in a diluent mixture comprising from 0 to 80% by volume of an ether diluent and a diluent selected from the group consisting of aromatic diluents, halogenated hydrocarbon diluents, and mixtures thereof. The methods are characterized by employing various mixtures of diluents, and in some cases, minimal to no ether diluent.

Synthesis of benzyl-metal compounds

The invention provides for polymerization catalyst compositions, and for methods for introducing the catalyst compositions into a polymerization reactor. More particularly, the method combines a catalyst component containing slurry and a catalyst component containing solution to form the completed catalyst composition for introduction into the polymerization reactor. The invention is also directed to methods of preparing the catalyst component slurry, the catalyst component solution and the catalyst compositions, to methods of controlling the properties of polymer products utilizing the catalyst compositions, and to polymers produced therefrom.

Bimodal polyolefin

Polymerization process

Catalyst compositions and methods useful in polymerization processes utilizing at least two metal compounds are disclosed. At least one of the metal compounds is a Group 15 containing metal compound and the other metal compound is preferably a bulky ligand metallocene-type catalyst. The invention also discloses a new polyolefin, generally polyethylene, particularly a multimodal polymer and more specifically, a bimodal polymer, and its use in various end-use applications such as film, molding and pipe. The Group 15 containing metal compound is represented in one embodiment by the formulae:

This invention relates to a composition of matter represented by the formula below, and to a polymerization process comprising combining an olefin in the gas or slurry phase with an activator, a support and a compound represented by the following formula:wherein

Method of polymerization

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Houston, TX, United States of America

David H McConville