Union Carbide Chemicals & Plastics Technology Corporation

Union Carbide Corporation

Dow Global Technolgoies LLC

Univation Technologies, LLC

Other

Technology Corporation

Burkhard Eric Wagner

Frederick John Karol

David D Devore

Edmund M Carnahan

Robert J Jorgensen

George L Goeke

Nils Friis

John N Argyropoulos

Daniel Paul Zilker, Jr

Kenneth A Nielsen

Mridula Babli Kapur

Sarat Munjal

William James Michie, Jr

Stephanie M Whited

Michael A Kinnan

William A Fraser

Michael D Turner

Sun-Chueh Kao

Paul C Vosejpka

Robert Charles Job

Kathleen F George

Arakalgud V Ramamurthy

Ann M Schoeb-Wolters

Patrick J C Schouterden

Cynthia Anne Hepburn

Laszlo L Ban

Mark Wilton Smale

William J Michie

Robert James Jorgensen

Michael D Awe

Jinder Jow

Thomas Edward Spriggs

Gary S Cieloszyk

Carl F Baker

Paul T Daniell

Michael William Tilston

Ruddy A J Nicasy

Patrick J Schouterden

Dale A Wright

Ruddy Nicasy

Mridula (Babli) Kapur

Joe B Garrett, Jr

Robert J Jorgesen

William Michie

Matthew H Mills

Mary T Zoeckler

Sarat J Munjal

Ruddy A Nicasy

Patrick JC Schouterden

Sarat JC Munjal

Joe B Garrett

Joseph N Iii Coalter

Cynthia A Hepburn

Gregory M Godziela

Sarat J C Munjal

Methods of preparing a polymerization catalyst component is provided, in which a magnesium component, a Lewis acid solubilizing component, a titanium compound, optionally a transition metal compound different than the titanium compound, and typically an inert filler are combined in a slurrying agent and spray-dried to produce a catalyst precursor in the form of a substantially spherical and porous solid particle. The methods and catalysts of this disclosure can provide ethylene homopolymer and copolymer resins having a high molecular weight tail and a broadened molecular weight distribution as compared to more traditional Ziegler-Natta catalysts.

Ziegler-natta catalyst compositions for producing polyethylenes with a high molecular weight tail and methods of making the same

A polyethylene composition comprising a granular polyethylene resin characterized by a resin solid density of from 0.91 to 0.97 g/cm, a ratio of intraparticle void volume to interparticle void volume of from 0.33 to 0.67, and a total resin porosity, &#x3a6;total, of equal to or greater than 0.45 is provided. Further provided are articles made from the polyethylene composition.

Polyethylene composition and articles made therefrom

A method for making a support impregnated Ziegler-Natta-type catalyst precursor including at least two transition metals and a support material wherein the resulting catalyst precursor is free-flowing is provided. Also provided is a process for producing a Ziegler-Natta type procatalyst by halogenating the free flowing catalyst precursor. The Ziegler-Natta type procatalyst and the reaction product of at least one monomer in the presence of the Ziegler-Natta type procatalyst and cocatalyst are also provided.

Ziegler-Natta type catalysts, methods of preparing same, polymers produced using the catalysts and articles produced therefrom

The invention provides a composition comprising a blend, which comprises a high molecular weight ethylene-based polymer, and a low molecular weight ethylene-based polymer, and wherein the high molecular weight ethylene-based polymer has a density less than, or equal to, 0.955 g/cm, and wherein the blend has a high load melt index (I) greater than, or equal to, 15 g/10 min, and wherein the blend has a molecular weight distribution (M/M) greater than, or equal to, 15. The invention also provides a composition comprising a blend, which comprises a high molecular weight ethylene-based polymer and a low molecular weight ethylene-based polymer, and wherein the high molecular weight ethylene-based polymer component has a density less than, or equal to, 0.945 g/cm, and a melt index (I) less than, or equal to, 0.1 g/10 min, and wherein the blend has a high load melt index (I) less than, or equal to, 15 g/10 min, and a melt index (I) less than, or equal to 1 g/10 min, and a molecular weight distribution (M/M) greater than, or equal to, 15. Additional compositions are disclosed.

Ethylene-based polymer compositions, methods of making the same, and articles prepared from the same

A Ziegler-Natta procatalyst composition in the form of solid particles and comprising magnesium, halide and transition metal moieties, said particles having an average size (D50) of from 10 to 70 &#x3bc;m, characterized in that at least 5 percent of the particles have internal void volume substantially or fully enclosed by a monolithic surface layer (shell), said layer being characterized by an average shell thickness/particle size ratio (Thickness Ratio) determined by SEM techniques for particles having particle size greater than 30 &#x3bc;m of greater than 0.2.

Robust spray-dried ziegler-natta procatalyst and polymerization process employing same

The present invention relates to a process of producing an ethylene polymer composition in multiple stages, of which the first stage is preferably a slurry polymerization stage, in the presence of a catalyst system, comprising: a) a solid catalyst precursor, comprising a transition metal selected from titanium and vanadium; magnesium; a halide, optionally an electron donor; and a solid particulate material comprising an inorganic oxide, and wherein the median particle diameter, D, of the solid catalyst precursor, based upon the total volume of solid catalyst precursor, is from 1 to 13 micrometers; and b) an organoaluminium compound.

Multistage process for producing ethylene polymer compositions

A process for making a Ziegler-Natta-type catalyst precursor including contacting a Group 4 metal compound with one or more Titanium compounds selected from the group of TiCl(Al-activated or hydrogen-reduced), and Ti(OR)where R is ethyl, isopropyl or butyl in the presence of an alcohol solution having at least one C-Calcohol and at least one of MgCland magnesium compounds which form MgClin the presence of the alcohol solution to form a catalyst precursor solution is provided. Also provided are catalysts made from the precursors produced by the process. Also provided are polymers made using the catalysts.

Method of making Ziegler-Natta type catalysts

The present invention relates to a process of producing an ethylene polymer composition in multiple stages of which the first stage is a slurry polymerization stage, in the presence of a catalyst system comprising a) a solid catalyst precursor comprising a transition metal selected from titanium and vanadium; magnesium, a halide, optionally an electron donor, and a solid particulate material comprising an inorganic oxide, wherein the median particle diameter of the solid catalyst precursor based upon the total volume of solid catalyst precursor, D, is from 1 to 13 micrometers; and b) an organoaluminium compound.

A Ziegler-Natta catalyst composition comprising a solid mixture formed by halogenation of: Al) a spray-dried catalyst precursor comprising the reaction product of a magnesium compound, a non-metallocene titanium compound, and at least one non-metallocene compound of a transition metal other than titanium, with A2) an organoaluminium halide halogenating agent, a method of preparing, precursors for use therein, and olefin polymerization processes using the same.

Spray-dried, mixed metal ziegler catalyst compositions

A spray-dried composition comprising the reaction product of a magnesium halide, a solvent, an electron donor compound, and a transition metal compound and an inert filler comprising substantially spherical particles having an average particle size ranging from about 1 &#x3bc;m to about 12 &#x3bc;m, and a polymerization process using the same.

Spray-dried polymerization catalyst and polymerization process employing same

A spray-dried catalyst precursor composition and method of making a spray-dried catalyst precursor composition with an inert filler, magnesium, a transition metal, solvent, and one electron donor compound. The catalyst precursor composition is substantially free of other electron donor compounds, the molar ratio of the electron donor compound to magnesium is less than or equal to 1.9, and comprises spherical or substantially spherical particles having a particle size of from about 10 to about 200 &#x3bc;m. Catalysts made from the spray-dried catalyst precursors and polymerization methods using such catalysts are disclosed.

Spray-dried polymerization catalyst and polymerization processes employing same

A supported catalyst composition comprising the reaction product of i) a magnesium halide, ii) a solvent, iii) an electron donor compound, iv) and a transition metal compound; an inert support; and a cocatalyst composition wherein the supported catalyst is substantially free of other alcohols and wherein the molar ratio of the first alcohol to magnesium is less than or equal to 1.9. Methods of making supported catalyst compositions and methods of making polymers with supported catalysts.

Supported polymerization catalyst

A method of making a spray-dried composition using a solution or mixture comprising the reaction product of a magnesium halide, a solvent, an electron donor compound, and a transition metal compound and an inert filler comprising substantially spherical particles having an average particle size ranging from 1 &mgr;m to about 12 &mgr;m.

Method for preparing a spray-dried composition for use as a polymerization catalyst

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Highland Park, NJ, United States of America

Burkhard Eric Wagner