Exxonmobil Chemical Patents Inc.

Univation Technologies, LLC

Steven A Best

Francis Charles Rix

Ching-Tai Lue

Dongming Li

Wen Li

James McLeod Farley

C Jeff Harlan

Daniel Paul Zilker, Jr

Fathi David Hussein

Timothy Marlow Boller

Jianya Cheng

Paul M German, Jr

Etienne R H Lernoux

Peijun Jiang

Pradeep P Shirodkar

Robert J Wittenbrink

Stefan B Ohlsson

Danny Van Hoyweghen

Blair Alfred Graham

Achiel J M Van Loon

Anthony Poloso

David B Dunaway

Daniel P Zilker

Alan M Malakoff

Jerry Michael Johnson

Arturo Leyva

Xiao-Chuan Wang

Giriprasath Gururajan

Gerd Arthur Allermann

Ronald N Cooke

Calvin K Schram

Barry C Trudell

Nicolas M De Ketelaere

Bernard Louis Bossaert

Carlos A Mota

Mallarie D McCune

Brian R Berg

Gerd A Allermann

Etienne RH Lernoux

Achiel JM Van Loon

A system and method of producing polyethylene, including: polymerizing ethylene in presence of a catalyst system in a reactor to form polyethylene, wherein the catalyst system includes a first catalyst and a second catalyst; and adjusting reactor conditions and an amount of the second catalyst fed to the reactor to control melt index (MI), density, and melt flow ratio (MFR) of the polyethylene.

Method of producing polyethylene and polyethylene thereof

Sheets made from metallocene-catalyzed polyethylene polymers, optionally, with other polymers, are disclosed.

Polyethylene sheets

Films made from metallocene-catalyzed polyethylene polymers, optionally, with other polymers, are disclosed.

Polyethylene films

Disclosed are polyethylene polymers with good melt strength that can provide enhanced properties for compositions including such polyethylene polymers and films made therefrom.

Polyethylene polymers, films made therefrom, and methods of making the same

Polymer compositions that include an ethylene-based polymer and a broad molecular weight distribution propylene-based polymer having a melt strength of 20.0 cN to 200.0 cN; and optionally, a propylene-based elastomer are described. The invention also includes articles, such as films, produced from such compositions and methods of making such compositions and methods of improving melt strength.

Ethylene based polymers and articles made therefrom

The present invention relates to a cast film comprising a composition comprising more than 25 wt % (based on the weight of the composition) of one or more linear ethylene polymers having a g'of 0.97 or more and an Mw of 20,000 g/mol or more and at least 0.1 wt % of a branched modifier where the modifier has a) a g&#x2032;of 0.90 or less; b) an Mw of 100,000 g/mol or more; c) an Mw/Mn of 3.0 or more; d) an Mz/Mn of 7.0 or more; e) a shear thinning ratio of 40 or more; and f) an I21 of 20 dg/min or less; where the film has at least a 10% reduction in neck-in as compared to the same composition formed into a film under the same conditions, except that the branched modifier is absent.

Modified polyethylene compositions for cast film

Processes are disclosed for oxygen-tailoring polyethylene, particularly polyethylenes suitable for wire and cable applications. One process includes conveying a first polyethylene having a melt index &#x2266;5.0 and an MWD &#x2266;5.0 through mixing or extrusion apparatus having a feed zone, a melt-mixing zone downstream of the feed zone, and a melt zone downstream of the melt-mixing zone, wherein the temperature of the first polyethylene in the melt zone ranges from about 180&#xb0; C. to about 300&#xb0; C.; and contacting the first polyethylene with an amount of an oxygen-containing gas having at least about 20.0 parts by weight oxygen per million per parts by weight of the first polyethylene (ppm (wt) O). Polyethylene compositions having improved properties, particularly for wire and cable applications are disclosed.

Oxygen tailoring of polyethylene

Provided are blends of linear low density polyethylene copolymers with very low density, low density, medium density, high density, and differentiated polyethylenes and other polymers. The invention also includes articles produced from the linear low density polyethylene and polyethylene blends described herein.

Linear polymers, polymer blends, and articles made therefrom

This invention relates to blends of linear low density polyethylene copolymers with other linear low density polyethylenes or very low density, low density, medium density, high density, and differentiated polyethylenes. The invention also includes articles produced from the linear low density polyethylene and polyethylene blends described.

Linear low density polymer blends and articles made therefrom

Growing community of inventors

The Woodlands, TX, United States of America

Steven A Best