Dow Global Technolgoies LLC

The Dow Chemical Company

Other

Advanced Design Concept Gmbh

Dow Quimica Mexicana S.a. De C.v.

Selim Bensason

Rajen M Patel

Mehmet Demirors

Thoi H Ho

Pak-Wing Steve Chum

Jacquelyn A Degroot

Teresa Plumley Karjala

Yi Jin

Theresa J Hermel-Davidock

Jose Eduardo Ruiz

Lawrence J Effler, Jr

Nilesh R Savargaonkar

Wenyi Huang

Jian Jim Wang

Hans-Werner Schmidt

Pradeep Jain

Yijian Lin

Wenbin Liang

Jill M Martin

Gert Johannes Claasen

Stephen F Hahn

Paul Smith

Cornelis F J Den Doelder

Rexford Allison Maugans

Jozef Van Dun

Xiao Bing Yun

Sarah M Hayne

Zhe Zhou

Jose V Saavedra

Rona L Reid

Antonio Batistini

Fabricio Arteaga Larios

Barbara Bonavoglia

Michael F Langohr

Jason C Brodil

Suzanne M Guerra

Gregory M Bunker

Prashant Mandare

Leonie K Walsh

Nancy J Schrock

Werner Wagner

Jacquelyne A Degroot

Antonio Torres

Kimberly S Houchens

Cristina Serrat

Robert H Kelch

Gagan Saini

Thomas Allgeuer

Calvin P Esneault

Jesus Nieto

Vivek Kalihari

Joseph L Deavenport

Andreas Mayer

Viraj Shah

Chuan Yar Lai

Antonio Manrique

Adriana Velasquez

Jian Wang

Seda Aksel

Arnaldo Lorenzo

Thor Gudmundsson

Jacquelyn A Deg Root

Thomas T Allgeuer

Martin K Hill

Jacquelyn A DeGroot

Jozef J Van Dun

Jesús Nieto

Cornelis Fj Den Doedler

Satyajeet Ojha

Adriana M Velasquez

Jacquelyn A De Groot

Pamela Y Smith

The present invention provides multilayer films, packages formed from such films, and methods of making multilayer films. In one aspect, a multilayer film comprises multilayer film comprising at least 3 layers, each layer having opposing facial surfaces and arranged in the order A/B/C, wherein a top facial surface of Layer B is in adhering contact with a bottom facial surface of Layer A; wherein a top facial surface of Layer C is in adhering contact with a bottom facial surface of Layer B, wherein the film is oriented in the machine direction and wherein the film exhibits a normalized carbon dioxide transmission rate of at least 3000 cm&#xb7;mil/100 in/day, and wherein the film exhibits a ratio of the carbon dioxide transmission rate to an oxygen transmission rate of at least 4.0.

Multilayer films, articles comprising the same, methods of manufacturing multilayer films

Disclosed herein is a multilayer laminate comprising a film comprising an ethylene-based elastomer; a first non-woven layer in contact with a first surface of the film; and a second non-woven layer in contact with a second surface of the film; wherein the second surface of the film is opposedly disposed to the first surface of the film; wherein at least one of the first non-woven layer or the second non-woven layer comprises a non-woven web; and wherein the non-woven web is formed from a bicomponent fiber having a first component comprising an polyethylene-based polymer and a second component comprising a polymer having a melting point that is higher than the polyethylene-based polymer, wherein at least a portion of a surface of the bicomponent fiber comprises the first component.

Elastic laminates, method of manufacture thereof and articles comprising the same

The present disclosure provides breathable films and method of making the same. The breathable films according to the present disclosure comprise a film layer comprising polymeric composition comprising equal to or less than 60 wt % of a linear low density polyethylene resin which exhibits each of the following properties: (1) a CEF fraction from 70 to 90 C of equal to or greater than 80% of the total CEF fractions; (2) a melt index, I2, measured according to ASTM D 1238 (2.16 kg @190C), in the range of equal to or greater than 2.0 g/10 min and equal to or less than 5.0 g/10 min; and (3) a melt flow ratio, 110/12, of equal to or less than 6.7.

Breathable films and method of making the same

Disclosed herein is a cast film comprising a polyethylene composition comprising the reaction product of ethylene and optionally one or more alpha-olefin comonomers, wherein said polyethylene composition is characterized by the following properties: a melt index, I2, measured according to ASTM D1238 (2.16 kg, 190&#xb0; C.), of from 1 to 20 g/10 min; a density (measured according to ASTM D792) of from 0.935 to 0.970 g/cm3; a melt flow ratio, I/I, wherein Iis measured according to ASTM D1238 (10 kg, 190&#xb0; C.) of from 5.5 to 7.0; a molecular weight distribution (Mw/Mn) of from 2.2 to 3.5; and a vinyl unsaturation of greater than 0.12 vinyls per one thousand carbon atoms present in the backbone of the composition.

Cast films, and articles made therefrom

A microporous film comprising: 75 wt. % or greater of a high density polyethylene resin having a density of 0.957 g/cc-0.970 g/cc, a melt index of from 0.2 to 10 g/10 minutes, a molecular weight distribution, M/M, of greater than or equal to 6.0, and a Mof greater than or equal to 500,000 g/mol, wherein the microporous film is oriented in the machine direction and exhibits a normalized water vapor transmission rate greater than 50 g mil/(100 in&#xb7;day).

Microporous films, and articles made therefrom

A cushioning network structure comprising a plurality of random loops arranged in a three-dimensional orientation, wherein the plurality of random loops are formed from an ethylene/a-olefin interpolymer composition having a highest DSC temperature melting peak in the range of from 90.0&#xb0; C. to 115.0&#xb0; C.; a zero shear viscosity ratio (ZSVR) in the range from 1.40 to 2.10; a density in the range of from 0.860 to 0.925 g/cc, a melt index (12) in a range of from 1 to 25 g/10 minutes when measured according to ASTM D1238 at 190&#xb0; C. and 2.16 kg, a molecular weight distribution (Mw/Mn) in the range of from 2.0 to 4.5.

Cushioning network structures, and methods of manufacturing thereof

The instant invention provides bi-component fibers and fabrics made therefrom. The bi-component fiber according to the present invention comprises: (a) from 5 to 95 percent by weight of a first component comprising at least one or more first polymers, based on the total weight of the bi-component fiber; (b) from 5 to 95 percent by weight of a second component comprising at least an ethylene-based polymer composition, based on the total weight of the bicomponent fiber, wherein said ethylene-based polymer composition comprises; (i) less than or equal to 100 percent by weight of the units derived from ethylene; and (ii) less than 30 percent by weight of units derived from one or more &#x3b1;-olefin comonomers; wherein said ethylene-based polymer composition is characterized by having a Comonomer Distribution Constant in the range of from greater than from 100 to 400, a vinyl unsaturation of less than 0.1 vinyls per one thousand carbon atoms present in the backbone of the ethylene-based polymer composition; a zero shear viscosity ratio (ZSVR) in the range from 1 to less than 2; a density in the range of 0.920 to 0.970 g/cm, a melt index (I) in the range of from 10 to 40 g/10 minutes, a molecular weight distribution (M/M) in the range of from 1.8 to 3.0, and a molecular weight distribution (M/M) in the range of from less than 2; and wherein said bi-component fiber has a denier per filament in the range of from 0.5 to 10 g/9000 m.

Bi-component fiber and fabrics made therefrom

Embodiments of a polyethylene composition comprise at least 50% by wt. of at least one polyethylene polymer; and 0.001 to 2% by wt. of bisamide nucleating agent utilized to reduce haze within the polyethylene composition.

Polyethylene compositions with improved optical properties

The present disclosure is directed to processes for producing ultrasonic sealable film structures and flexible containers with ultrasonic seals. The film structure includes a first multilayer film and a second multilayer film. Each multilayer film includes a backing layer and a seal layer. Each seal layer includes an ultrasonic sealable olefin-based polymer (USOP) having the following properties: (a) a heat of melting, &#x394;Hm, less than 130 J/g, (b) a peak melting temperature, Tm, less than 125&#xb0; C., (c) a storage modulus in shear (G') from 50 MPa to 500 MPa, and (d) a loss modulus in shear (G&#x2033;) greater than 10 MPa. The multilayer films are arranged such that the seal layer of the first multilayer film is in contact with the seal layer of the second multilayer film. The seal layers form an ultrasonic seal having a seal strength from 30 N/15 mm to 80 N/15 mm when ultrasonically sealed at 4 N/mm seal force.

Process for producing ultrasonic seal, and film structures and flexible containers with same

The present disclosure is directed to a fiber that is composed of a polymeric blend including (i) 95 wt % to 99 wt % of a high density ethylene-based polymer having a Mw/Mn from 2.0 to 3.0 and (ii) from 5 wt % to 1 wt % of a low density ethylene-based polymer having a melt index from 5 g/10 min to 15 g/10 min. The fiber has a density from 1 denier to 2 denier and a 3% secant modulus from 8.5 g/denier to 20 g/denier.

Fiber comprising polyethylene blend

The instant invention provides nonwoven fabrics and staple or binder fibers prepared from an ethylene-based polymer having a Comonomer Distribution Constant in the range of from greater than from 100 to 400, a vinyl unsaturation of less than 0.1 vinyls per one thousand carbon atoms present in the backbone of the ethylene-based polymer composition; a zero shear viscosity ratio (ZSVR) in the range from 1 to less than 2; a density in the range of 0.930 to 0.970 g/cm3, a melt index (12) in the range of from 15 to 30 or from 10 to 50 g/10 minutes, a molecular weight distribution (Mw/Mn) in the range of from 2 to 3.5, and a molecular weight distribution (Mz/Mw) in the range of from less than 2.

Spunbond nonwoven fabrics

An ethylene/&#x3b1;-olefin copolymer comprising units derived from ethylene; and units derived from at least one &#x3b1;-olefin; wherein the ethylene/&#x3b1;-olefin copolymer has a density in the range of from 0.90 to 0.94 g/cc; a melt index (I) in the range of from 0.05 to 50 dg/min; an Mw/Mn of from 3 to 5; and from 300 to 500 vinyl unsaturations per 1,000,000 carbon atoms in the ethylene/&#x3b1;-olefin copolymer is provided. Also provided is a process for producing an ethylene/&#x3b1;-olefin copolymer comprising: (1) polymerizing ethylene and one or more &#x3b1;-olefins in a polymerization reactor; (2) thereby producing an enhanced melt strength ethylene/&#x3b1;-olefin copolymer having from 300 to 500 vinyl unsaturation units per 1,000,000 carbon atoms, a density in the range of from 0.90 to 0.94 g/cc; a melt index (I) in the range of from 0.05 to 50 dg/min; and a Mw/Mn of from 3 to 5.

Process to produce enhanced melt strength ethylene/alpha-olefin copolymers and articles thereof

Process to produce enhanced melt strength ethylene/&#x3b1;-olefin copolymers and articles thereof

The instant invention provides a polyethylene blend composition suitable for blown film, method of producing the same, and films made therefrom. The polyethylene blend composition suitable for blown film according to the present invention comprises the melt blending product of: (a) less than or equal to 4 percent by weight of a low density polyethylene (LDPE) having a density in the range of from 0.915 to 0.935 g/cm, and a melt index (I) in the range of from greater than 0.8 to less than or equal to 5 g/10 minutes, and a molecular weight distribution (M/M) in the range of from 6 to 10; (b) 90 percent or greater by weight of a heterogenous linear low density polyethylene (hLLDPE) having a density in the range of from 0.917 to 0.950 g/cm, and a melt index (I) in the range of from 0.1 to less than or equal to 5 g/10 minutes; (c) optionally a hydrotalcite based neutralizing agent; (d) optionally one or more nucleating agents; and (e) optionally one or more antioxidants. When the polyethylene blend-composition is formed into a film via blown film process, the output rate is improved at least 6 percent relative to a similar linear low density polyethylene.

Polyethylene blend composition suitable for blown film, method of producing the same, and films made therefrom

A polymeric, mono- or multilayer stretch hood packaging film with an overall density that does not exceed 0.920 g/cc includes: A. At least one core layer containing: 1. At least 50 wt % ULDPE with a density of 0.900 to 0.920 g/cc; and 2. Optionally at least one of: a. LDPE with a density of 0.915 to 0.925 g/cc, and b. EVA with a VA content of 4 to 20 wt %; and B. Optionally, two skin layers, each skin layer independently comprising: 1. At least 50 wt % ULDPE with a density of 0.900 to 0.920 g/cc; and 2. Optionally an LDPE with a density of 0.915 to 0.925 g/cc.

Stretch hoods made from ULDPE-rich formulations

Growing community of inventors

Rueschlikon, Switzerland

Selim Bensason