Dow Global Technolgoies LLC

Case Western Reserve University

Yijian Lin

Mehmet Demirors

Mridula Babli Kapur

David T Gillespie

Todd A Hogan

Xiao Bing Yun

Keran Lu

Fabricio Arteaga Larios

John L Sugden

Rajen M Patel

Jianping Pan

Didem Oner-Deliormanli

Sanjib Biswas

Sarat Munjal

Eric Baer

Yushan Hu

Rongjuan Cong

Selim Bensason

Xin Huang

Jill M Martin

Wenyi Huang

Stephanie M Whited

Carl N Iverson

Alec Y Wang

Andrew T Heitsch

Anne Hiltner

Siddharth Ram Athreya

Joshua B Gaubert

Pavan K Valavala

Aleksandar Stoiljkovic

Tian Lan

Jong Young Lee

Jose V Saavedra

Eduardo Alvarez

Akanksha Garg

Yinglong Chen

Arnaldo T Lorenzo

Teresa Plumley Karjala

Roger L Kuhlman

Pradeep Jain

Philip P Fontaine

Colin Li Pi Shan

Ronald Wevers

Haiyang Yu

Jeffrey D Weinhold

Colin LiPiShan

Brian W Kolthammer

Ronald P Markovich

Yunfeng Yang

Angela I Padilla-Acevedo

James L Cooper

Mustafa Bilgen

Michael D Turner

Jacquelyn A Degroot

Jingya Li

Peter S Martin

Joseph L Deavenport

Daniela Ferrari

Johnathan E DeLorbe

Chuan C He

Xiaobing Yun

Kyle E Hart

Johnathan E Delorbe

Shijie Ren

Joel Carr

Viraj Shah

Barbara Bonavoglia

Laura Nunez

Jian-ping Pan

Yutaka Maehara

Wu Aik Yee

Shadid Askar

Todd O Pangburn

Joel D Wieliczko

Manoj Thota

Rou Hua Chua

Jacquelyn A Deg Root

Jozef J I Van Dun

Lanhe Zhang

Rou Hua Chou

Jacquelyn A DeGroot

Martin Hill

Pavan Kumar Valavala

Pamela Y Smith

A film includes 20.0 weight percent to 69.5 weight percent of a linear low density polyethylene (LLDPE) based polymer. The LLDPE having a high density fraction (HDF) from 3.0% to 8.0%, an I/Iratio from 5.5 to 6.9, and a short chain branching distribution (SCBD) of less than or equal to 8.0° C. The film also includes 0.0 weight percent to 10.0 weight percent low density polyethylene (LDPE) based polymer, and 30.0 weight percent to 70.0 weight percent pore former.

Polymer-based film with balanced properties

Provided are meltblown nonwovens, and articles thereof. The meltblown nonwovens can be formed form a composition comprising an ethylene/alpha-olefin interpolymer and specific additive. The meltblown nonwovens according to embodiments disclosed herein exhibit a high volume resistivity and can be used in filtration applications.

Meltblown nonwovens having high volume resistivity and articles thereof

A first oriented film comprising a first polyethylene composition which comprises: from 20 to 50 wt % of a first linear low density polyethylene polymer having a density greater than 0.925 g/cc and an Ilower than 2 g/10 min; and from 80 to 50 wt % of a second linear low density polyethylene polymer having a density lower than or equal to 0.925 g/cc and an Igreater than or equal to 2 g/10 min; wherein the first polyethylene composition has an Ifrom 0.5 to 10 g/10 min and a density from 0.910 to 0.940 g/cc is provided.

Oriented polyethylene films and a method for making the same

Disclosed is a curly fiber having a fiber centroid and comprising a first region having a first centroid and a second region wherein the first region comprises an ethylene/alpha olefin interpolymer composition in an amount of at least 75 weight percent based on total weight of the first region and wherein the ethylene/alpha olefin interpolymer composition is characterized by a low temperature peak and a high temperature peak on an elution profile via improved comonomer composition distribution (ICCD) procedure, and a full width at half maximum of the high temperature peak is less than 6.0° C. and the second region is a material comprising a polymer which is different from the ethylene/alpha-olefin interpolymer of the first region and wherein the regions are arranged such that at least one of the first centroid and the second centroid is not the same as the fiber centroid.

Crimped multi-component fibers

A nonwoven fabric comprises at least one fiber having a first component prepared from at least 75 wt. % of bimodalethylene/alpha-olefin interpolymer composition, wherein the ethylene/alpha-olefin interpolymer composition is characterized by: a density in the range of 0.930 to 0.965 g/cm, a melt index (I2) in the range of from 10 to 60 g/10 minutes, wherein the I2 is measured according to ASTM D1238, 190 C, 2.16 kg, a molecular weight distribution, expressed as the ratio of the weight average molecular weight to number average molecular weight (M/M) as determined by GPC of from 1.5 to 2.6, a tan delta at 1 radian/second of at least 45, a low temperature peak and a high temperature peak on an elution profile via improved comonomer composition distribution (ICCD) procedure, and a full width at half maximum of the high temperature peak is less than 6.0° C.

Non-woven fabric having ethylene/alpha-olefin polymer fibers

A process comprising forming fibers having at least a first region and a second region wherein the first region comprises an ethylene/alpha olefin interpolymer composition characterized by: density in the range of 0.930 to 0.965 g/cm; melt index (I2) in the range of from 10 to 60 g/10 minutes; molecular weight distribution in the range of from 1.5 to 2.6; tan delta at 1 radian/second of at least 45; a low temperature peak and a high temperature peak on an elution profile via improved comonomer composition distribution (ICCD) procedure; and full width at half maximum of the high temperature peak is less than 6.0° C. and stretching the fibers to an elongation of at least 20% thereby increasing curl of the fiber. The process may further include forming a non-woven from the fibers and the stretching of the fibers may occur before or after forming of the non-woven.

Method of manufacture of curly fibers

An injection molded cap or closure having a weld line, wherein the injection molded cap or closure is formed from an ethylene-based resin comprising a high molecular weight component and a low molecular weight component.

Injection molded caps or closures, and methods thereof

A meltblown nonwoven formed from a bicomponent fiber, wherein: the bicomponent fiber has a first region and a second region, the first region is formed from a first composition comprising at least 75 wt. % of a polypropylene; the second region is formed from a second composition comprising at least 75 wt. % of an ethylene/alpha-olefin interpolymer.

Meltblown nonwoven fabrics, and composites thereof

A cleansing wipe may be formed from a nonwoven and includes a first ethylene/alpha-olefin interpolymer and a second ethylene/alpha-olefin interpolymer. The cleansing wipe may also have a SaMbSc configuration, wherein the M, meltblown layer, is formed from the first ethylene/alpha-olefin interpolymer and the second ethylene/alpha-olefin interpolymer. The cleansing wipe may be formed a nonwoven comprising bicomponent fibers that incorporate the first ethylene/alpha-olefin interpolymer and the second ethylene/alpha-olefin interpolymer.

Cleansing wipe formed from a nonwoven including ethylene/alpha-olefin interpolymers

In various embodiments, a polyethylene formulation has a density of greater than 0.940 g/cmwhen measured according to ASTM D792, and a high load melt index (I) of 1.0 g/10 min to 10.0 g/10 min when measured according to ASTM D1238 at 190&#xb0; C. and a 21.6 kg load. Moreover, the polyethylene formulation has a peak molecular weight (M) of less than 50,000 g/mol, a number average molecular weight (M) of less than 30,000 g/mol, and a weight fraction (w1) of molecular weight (MW) less than 10,000 g/mol of less than or equal to 10.5 wt %, as determined by Gel Permeation Chromatography (GPC). Articles made from the polyethylene formulation, such as articles made by blow molding processes are also provided.

Polyethylene formulations for large part blow molding applications

Embodiments of a method for producing a multimodal ethylene-based polymer having a first, second, and third ethylene-based component, wherein the multimodal ethylene based polymer results when ethylene monomer, at least one C-Ccomonomer, solvent, and optionally hydrogen pass through a first solution, and subsequently, a second solution polymerization reactor. The first solution polymerization reactor or the second solution polymerization reactor receives both a first catalyst and a second catalyst, and a third catalyst passes through either the first or second solution polymerization reactors where the first and second catalysts are not already present. Each ethylene-based component is a polymerized reaction product of ethylene monomer and C-Ccomonomer catalyzed by one of the three catalysts.

Dual reactor solution process for the production of multimodal ethylene-based polymer

Embodiments of a method of producing a multimodal ethylene-based polymer comprising a first catalyst and a second catalyst in a first solution polymerization reactor and a third catalyst in a second solution polymerization reactor.

Process for the production of multimodal ethylene-based polymers

Embodiments of polymer compositions and articles comprising such compositions contain at least one multimodal ethylene-based polymer having at least three ethylene-based components, wherein the multimodal ethylene-based polymer exhibits improved toughness.

Multimodal ethylene-based polymer compositions having improved toughness

Embodiments of methods for producing a trimodal polymer in a solution polymerization process comprise three solution polymerization reactors organized in parallel or in series.

Multimodal ethylene-based polymer processing systems and methods

Polyethylene formulations and articles produced therefrom, comprise a multimodal high density polyethylene (HDPE) composition, and 0.1 ppm to 300 ppm of a nucleating agent, wherein the multimodal HDPE composition comprises a density of 0.940 g/cmto 0.970 g/cmwhen measured according to ASTM D792, and a melt index (I2) of 0.1 g/10 min. to 10.0 g/10 min. when measured according to ASTM D1238 at 190&#xb0; C. and a 2.16 kg load, and wherein the multimodal HDPE composition comprises an infrared cumulative detector fraction (CDF) of greater than 0.27 and an infrared cumulative detector fraction to light scattering cumulative detector fraction ratio (CDF/CDF) from 0.7 to 2.0.

Polyethylene formulations with improved barrier and environmental stress crack resistance

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Manvel, TX, United States of America

Yijian Lin