Exxonmobil Chemical Patents Inc.

Carrier Corporation

Alexander I Norman

Adriana S Silva

Peijun Jiang

Wen Li

Jianya Cheng

Andy Haishung Tsou

Arturo Leyva

Matthew William Holtcamp

John Robert Hagadorn

Periagaram Srinivasan Ravishankar

David F Sanders

Antonios K Doufas

Abdelhadi Sahnoune

Rohan A Hule

Sarah J Mattler

Wayde R Schmidt

Gabor Kiss

Scott Alan Eastman

Yong Yang

Xuan Ye

Timothy D Shaffer

Pamela Jean Wright

Arnold Lustiger

David Michael Fiscus

Derek Wade Thurman

Thomas T Sun

Johannes Matthieu Soulages

Sonia Tulyani

Ying Sun

Hasnain Rangwalla

Madhavi Vadlamudi

Kimari T M Slaughter

Gregory K Hall

Jodi Ann Vecchiarelli

Bethany M Welke

Dinara R Sunagatullina

Caitlyn McIntyre Thorpe

Keith R Green

Ying Ying Sun

Andrian S Silva

Jodi A Vecchiarelli

Caitlyn Mcintyre Thorpe

Hasain Rangwall

In some embodiments, the present disclosure provides a composition comprising 1) about 97.5 wt % to about 99.9 wt % of a first polyethylene having a density of about 0.91 g/cmto about 0.94 g/cm, and a melt strength of about 10 mN or greater; and 2) about 0.1 wt % to about 2.5 wt % of a second polyethylene having an Mw of about 500,000 g/mol or more. In some embodiments, the composition is a film. In some embodiments, the present disclosure provides a method of making a composition comprising blending a first polyethylene of any embodiment described herein and a second polyethylene of any embodiment described herein.

Enhanced processability of LLDPE by addition of ultra-high molecular weight density polyethylene

A composite comprising a polyethylene and within a range from 1 wt % to 25 wt % of at least one cyclic-olefin copolymer by weight of the composition, where the polyethylene may have a density of at least 0.90 g/cm, and where the cyclic-olefin copolymer has a glass transition temperature (Tg) of at least 30&#xb0; C. Disclosed also is the feature of orienting the composite to form an oriented article, wherein the article comprises rods having an average length of at least 1 &#x3bc;m, and at least 5 nm in average diameter.

Polyethylene compositions comprising cyclic-olefin copolymers

A heat exchanger is disclosed for transferring heat from a first material to a second material comprises a structural heat transfer member having a first surface in contact with the first material and a second surface in contact with the second material. The heat exchanger also has a coating on the first surface, the second surface, or on the first and second surfaces. The coating comprises filler particles dispersed in a polymer resin matrix.

Coated heat exchanger

Provided is a composition having 60 wt % to 95 wt % of a first propylene alpha-olefin copolymer component having a reactivity ratio product of less than 0.75 and a weight average molecular weight of greater than about 450,000 g/mol; and 5 wt % to 40 wt % of a second propylene alpha-olefin copolymer component having a reactivity ratio of greater than 1.5 and a weight average molecular weight of less than about 215,000 g/mol.

Propylene-alpha olefin copolymers and methods for making the same

Provided is a composition having 70 wt % to 90 wt % of a first propylene-olefin copolymer component having an ethylene content of 15 to 21 wt %; and 10 wt % to 30 wt % of a second propylene-olefin copolymer component having an ethylene content of 6 to 10 wt %; wherein the weight average molecular weight of the first component is 250,000 to 1,780,000 g/mol higher than the weight average molecular weight of the second component; wherein the reactivity ratio product of the first component is less than 0.75; wherein the reactivity ratio product of the second component is greater than or equal to 0.75.

Propylene-olefin copolymers and methods for making the same

This invention relates to ethylene polymers obtained using a catalyst system comprising fluorided silica, alkylalumoxane activator and at least two metallocene catalyst compounds (a bridged monocyclopentadienyl group 4 transition metal compound and a biscyclopentadientyl group 4 transition metal compound), where the fluorided support has not been calcined at a temperature of 400&#xb0; C. or more, and is preferably produced using a wet mixing method, such as an aqueous method. The ethylene polymers have: 1) at least 50 mol % ethylene; 2) a reversed comonomer index, mol %, (RCI,m) of 85 or more; 3) a Comonomer Distribution Ratio-2 (CDR-2,m) of the percent comonomer at the z average molecular weight divided by the percent comonomer at the weight average molecular weight plus the number average molecular weight divided by 2 ([% comonomer at Mz]/[% comonomer at ((Mw+Mn)/2)] as determined by GPC of 2.3 or more; and 4) a density of 0.91 g/cc or more.

Polyethylene composition

This invention relates to new multimodal and/or broad molecular weight high density polyethylene polymers. The polymers may be made in a single reactor, preferably a gas phase reactor using a dual catalyst system comprising a pyridyldiamido transition metal compound, a metallocene compound, a support, and optionally an activator.

Multimodal and broad molecular weight high density polyethylene

A method of forming a blown film comprising extruding a molten composition through a die opening to form a film; wherein the molten composition comprises at least one polyethylene and within the range from 0.10 wt % to 10 wt % of a cyclic-diene terpolymer by weight of the composition; causing the film to progress in a direction away from the die opening; cooling the film at a distance from the die opening, the distance adjusted to effect the properties of the film; and isolating a blown film therefrom.

Cyclic-diene additives in polyethylene films and enhanced film orientation balance in production thereof

A method of forming a finished film comprising extruding a molten polyethylene comprising a diene terpolymer modifier through a die opening to form a film, wherein the diene-terpolymer modifier is a terpolymer comprising ethylene-derived units, Cto C&#x3b1;-olefin derived units, and diene-derived units; causing the film to progress in a direction away from the die opening; cooling the film at a distance from the die opening, the distance adjusted to allow relaxation of the molten polyethylene prior to solidification and/or crystallization upon cooling; and isolating a finished film therefrom. Desirably, the polyethylene is a linear low density polyethylene, and the die and cooling is suitable for forming a blown film.

Polyethylene films and production of such films

Growing community of inventors

Houston, TX, United States of America

Alexander I Norman