Dow Global Technolgoies LLC

Dow Quimica De Colombia S.a.

Pbbpolisur S.r.l.

Dow Glo

Pbbpoiisur S.r.l.

Mustafa Bilgen

Mehmet Demirors

Teresa Plumley Karjala

Rajen M Patel

Jorge Caminero Gomes

Jose Eduardo Ruiz

Claudia Hernandez

Douglas S Ginger

Jon W Hobson

Fawzi G Hamad

Mridula Babli Kapur

Pradeep Jain

Philip P Fontaine

David T Gillespie

Maximiliano Zanetti

Marlos Giuntini De Oliveira

Miguel A Molano Niampira

Jorge Mario Rodriguez Camelo

Camila Do Valle

Nicolas Cardoso Mazzola

Yijian Lin

Swapnil B Chandak

Gagan Saini

Michael D Turner

Jong Young Lee

Joshua B Gaubert

Suzanne M Guerra

Guillermo A Raimondi

Jason C Brodil

Hongming Ma

João Gargalaka, Jr

Marcelo Delmar Cantu

Sydney E Hansen

Hrishikesh R Munj

Troy M Tambling

Jian Wang

Marcello Tognola

Fanny Deplace

Mauricio E Leano

Jain Pradeep

Mridula Kupar

Marlos Giuntini Oliveira

Martin Hill

Jr Francis O Olajide

Lamy J Iii Chopin

Robert N Reib

Embodiments disclosed herein include multilayer films having a cling layer, a core layer, and a release layer, wherein the cling layer comprises a propylene interpolymer and the core layer comprises a core layer polyethylene composition.

Multilayer stretch films and methods thereof

Embodiments of the present disclosure are directed to drawtapes for trash bags, wherein the drawtape comprises a multilayer polymer film having an improved stiffness.

Collapsed bubble drawtape film for improved elastic and stiffness performance in trash bags

Embodiments of thermoplastic bags which yield elasticity and stiffness include a first drawtape disposed within the first channel, wherein the first drawtape comprises a linear low density polyethylene having a density of from 0.902 g/cc to 0.920 g/cc, and a second drawtape disposed within the second channel, wherein the second drawtape comprises a high density polyethylene having a density of from 0.940 g/cc to 0.965 g/cc.

Dual drawtape trash bags having improved elastic and stiffness performance

Embodiments disclosed herein include multilayer cast films having a cling layer and a release layer, wherein the cling layer comprises (i) a first polyethylene composition, and (ii) ultra-low density polyethylene, very low density polyethylene, ethylene/alpha-olefin elastomer, propylene-based elastomer, or combinations thereof; and the release layer comprises a second polyethylene composition.

Multilayer cast films and methods of making thereof

Disclosed herein is a film comprising a layer that comprises 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, I, measured according to ASTM D1238 (2.16 kg, 190 C), of from 0.5 to 10 g/10 min; a density (measured according to ASTM D792) of less than 0.935 g/cm; a melt flow ratio, I/I, wherein Iis measured according to ASTM D1238 (10 kg, 190 C) of from 6.0 to 7.5; a molecular weight distribution (Mw/Mn) of from 2.8 to 3.9; and a vinyl unsaturation of greater than 0.12 vinyls per one thousand carbon atoms, and a low density polyethylene.

Films having desirable mechanical properties and articles made therefrom

The present disclosure provides a fitment. In an embodiment, the fitment includes a top portion, a base, and a channel extending through the top portion and the base for passage of a flowable material. The fitment is composed of a polymeric composition. The polymeric composition comprises: (i) from 60 weight % to 90 weight % of a propylene-based polymer having a density of 0.900 g/cc and a melt flow rate greater than 10.0 g/10 min; and (ii) from 40 weight % to 10 weight % of a propylene-based plastomer or elastomer ('PBPE') having a density less than 0.900 g/cc, and a melt flow rate (MFR) from 5 g/10 min to 30 g/10 min. The present disclosure also provides a process for sealing multilayer films to the base of the fitment and the resultant flexible container formed from the process.

Fitment with propylene-based blend component and flexible container with same

A multilayer blown film having an inner layer, a first outer layer, and a second outer layer, wherein the inner layer comprises an ethylene-based polymer having a MWCDI value greater than 0.9, and a melt index ratio (I10/I2) that meets the following equation: I10/I2&#x2265;7.0&#x2212;1.2&#xd7;log (I2); and the first outer layer and the second outer layer independently comprise a polyethylene composition which comprises the reaction product of ethylene and, optionally, one or more alpha olefin comonomers, wherein the polyethylene composition is characterized by the following properties: (a) a melt index, I, of from 0.1 to 2.0 g/10 min; (b) a density of from 0.910 to 0.930 g/cc; (c) a melt flow ratio, I/I, of from 6.0 to 7.6; and (d) a molecular weight distribution, (Mw/Mn) of from 2.5 to 4.0.

Blown films with improved properties

Embodiments disclosed herein include multilayer cast films having a first outer layer, a core layer, and a second outer layer, wherein the first outer layer comprises (a) a linear low density polyethylene (LLDPE), ultra-low density polyethylene (ULDPE), a first polyethylene composition, or combinations of two or more thereof, and (b) polyisobutylene, and the core layer comprises a core layer polyethylene composition.

The present invention provides methods of preparing peelable seal layers, methods of preparing multilayer films, peelable seal layers made therefrom, and multilayer films made therefrom. In one aspect, a method of preparing a peelable seal layer comprises (a) providing a first blend comprising (i) from 5 to 98 percent by weight of a reactor grade propylene based plastomer or elastomer having a molecular weight distribution of less than 3.5 and a density of less than 0.89 g/cc and (ii) from 2 to 95 percent by weight of a second polymer selected from the group consisting of polyethylene, polybutylene, and styrenic polymer and mixtures thereof; (b) providing at least one linear low density polyethylene; (c) blending the first blend with the at least one linear low density polyethylene to obtain a second blend; and (d) extruding the second blend to form a peelable seal layer, wherein the peelable seal layer has a heat seal initiation temperature less than 120&#xb0; C. when sealed at a bar pressure of 40 psi with a dwell time of 0.5 seconds.

Methods of preparing a peelable seal layer

A package, e.g., a pouch, comprising: (A) An exterior surface comprising oriented-polypropylene (OPP), and (B) An interior surface comprising a blend, in weight percent based on the weight of the blend, of: (1) From 30 to 80 wt % of a propylene-based plastomer or elastomer (PBPE), and (2) From 20 to 70 wt % of low density polyethylene (LDPE); the package further comprising (C) A peelable end seal formed by joining in a heat seal two sections of the interior surface, the heat seal having a seal strength of 1 to 4 pounds per inch (lb/in) (4.48 to 17.9 Newton (N)/25.4 millimeter (mm)), and (D) A lap seal formed by joining in a heat seal a section of the interior surface with a section of the exterior surface, the heat seal having a seal strength of greater than or equal to (&#x2265;) 15 lb/in (67.2 N/25.4 mm).

Package with peelable and non-peelable heat seals

The instant invention provides a polyolefin composition suitable for sealant applications, sealant compositions, method of producing the same, and films and multilayer structures made therefrom. The polyolefin composition suitable for sealant applications according to the present invention comprises: an ethylene/&#x3b1;-olefin interpolymer composition having a Comonomer Distribution Constant (CDC) in the range of from 40 to 110, 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 of from 1.01 to 2.0; a density in the range of from 0.908 to 0.922 g/cm, a melt index (Iat 190&#xb0; C./2.16 kg) in the range of from 0.5 to 5.0 g/10 minutes, a molecular weight distribution (defined as the weight average molecular weight divided by the number average molecular weight, M/M) in the range of from 2.0 to 4.0, and tan delta at 0.1 radian/second, determined at 190&#xb0; C., in the range of from 5 to 50.

Sealant composition

Embodiments of a polyethylene polymer blend having a melt index (I)&#x3c;2 g/10 min are provided, wherein the polyethylene polymer blend comprises at least about 50% by wt. of at least one high density polyethylene resin (HDPE) having a density &#x2267;0.950 g/cm3, a melt index (I)&#x3c;4 g/10 min; a melt flow ratio (I/I)&#x2266;9, and a molecular weight distribution (MWD) of about 2 to about 5; and further comprises about 1% to about 20% by wt. of at least one low density polyethylene resin (LDPE) having a density &#x2266;0.930 g/cm3, a melt index (I) of about 0.1 to about 10 g/min, and an MWD&#x3e;3.

Low haze polyethylene polymer compositions

The instant invention provides a polyolefin composition suitable for packaging applications, films, multilayer structures and packaging devices made therefrom. The polyolefin composition according to the present invention comprises: an ethylene/&#x3b1;-olefin interpolymer composition comprising (a) from 50 to 75 percent by weight of a first ethylene/&#x3b1;-olefin copolymer fraction having a density in the range of 0.894 to 0.908 g/cm, a melt index (I) in the range of from 0.2 to 1 g/10 minutes, and (b) from 25 to 50 percent by weight of a second ethylene/&#x3b1;-olefin copolymer fraction, and wherein said ethylene/&#x3b1;-olefin interpolymer composition has a density in the range of 0.910 to 0.924 g/cm, a melt index (I) in the range of from 0.5 to 2 g/10 minutes, a zero shear viscosity ratio (ZSVR) in the range of from 1.15 to 2.5, a molecular weight distribution, expressed as the ratio of the weight average molecular weight to number average molecular weight (M/M) in the range of from 2.0 to 4.0, and tan delta at 0.1 radian/second and 190&#xb0; C. in the range of from 6 to 43.

Polyolefin composition

Growing community of inventors

Manvel, TX, United States of America

Mustafa Bilgen