Dow Global Technolgoies LLC

Union Carbide Chemicals & Plastics Technology Corporation

Univation Technologies, LLC

Peiromont and Company Limited

Dale A Wright

Robert J Jorgensen

William James Michie, Jr

Mark Gregory Goode

Thoi H Ho

Burkhard Eric Wagner

John Roberts Parrish

Jose Fernando Cevallos-Candau

Thomas Edward Spriggs

Sarah M Hayne

Antonios Nicholas

Carl F Baker

James Leland Swecker, Ii

Karen E Breetz

Sarah E Patterson

Francois Alexandre

William Michie

James L Swecker

Theodore Randolph Engelmann

Joe B Garrett, Jr

Matthew H Mills

Kevin Nylin

Nancy Costolnick

Joe B Garrett

William J Michie

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 the delivery of a catalyst to a polymerization reactor is disclosed, comprising: contacting a catalyst with a carrier fluid comprising an inert hydrocarbon in gaseous form, the inert hydrocarbon having a normal boiling point of about &#x2212;1&#xb0; C. to about 81&#xb0; C.; and flowing the carrier fluid to the polymerization reactor such that the carrier fluid transports the catalyst to the polymerization reactor. A catalyst delivery system is disclosed, comprising: a catalyst vessel for containing a catalyst; a catalyst injection line for delivering the catalyst to a polymerization reactor, the catalyst injection line being in fluid communication with the catalyst vessel and the polymerization reactor; and a carrier fluid line in fluid communication with the catalyst injection line for delivering a carrier fluid comprising an inert hydrocarbon to the catalyst injection line, the inert hydrocarbon having a normal boiling point of about &#x2212;1&#xb0; C. to about 81&#xb0; C.

Methods and systems for catalyst delivery

The invention provides an ethylene-based interpolymer comprising the following features: The invention also provides a composition comprising an ethylene-based interpolymer that comprises the following features: The invention also provides a hollow tube comprising at least one component formed from a composition comprising an ethylene-based interpolymer that comprises the following features:

Ethylene-based polymers and compositions, methods of making the same and articles prepared therefrom

A process for polymerizing polyethylene with chromium-based catalysts wherein one or more supported chromium-based catalysts is mixed with mineral oil to form a slurry and the slurry is then introduced into a polymerization reactor, especially a gas-phase polymerization reactor.

Chromium-based catalysts in mineral oil for production of polyethylene

A process for preparing high density polyethylene in the gas phase comprising contacting a mixture comprising ethylene and one or more alpha-olefins with the supported reaction product of a bis-hydrocarbylsilyl chromate and a hydrocarbylaluminum compound or a hydrocarbyl boron compound in a fluidized bed reactor having a recycle gas line, under particularly defined polymerization conditions, including, but not limited to, the following provisos:

Process for the preparation of polyethylene

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Charleston, WV, United States of America

Dale A Wright