Abstract: Provided are oriented films comprising linear low density polyethylene polymer and having improved balance of properties including improved machine direction tear strength. The oriented polymer film has at least one layer comprising 50 to 100 wt. % of an ethylene-based polymer. The MDO polymer film has a normalized MD Elmendorf Tear (ASTM D-1922) of at least 40 g/?m. In certain embodiments, the MDO polymer film surprisingly does not tear when MD Elmendorf Tear is measured according to ASTM D-1922.

Abstract: Polyethylene compositions described herein have a density from about 0.900 g/cm3 to about 0.950 g/cm3, a MI (I2, 190° C., 2.16 kg) from about 0.1 g/10 min to about 10 g/10 min, an MIR (I21/I2) from about 25 to about 80, an Mz greater than or equal to about 150,000 g/mol, and either an Mz/Mn ratio greater than or equal to about 8.0, an Mz/Mw ratio greater than or equal to about 2.4, or an (I2*Mz/Mn) from about 3 to about 100. The polyethylene compositions are useful in wire and cable, tape, and filament applications, and could be produced using a gas phase or slurry phase, preferably gas phase, polymerization process.

Abstract: A bimodal polyethylene is provided. The bimodal polyethylene may include a high molecular weight portion having a weight average molecular weight (Mw) of 100,000 g/mol to 1,000,000 g/mol and a low molecular weight portion having a Mw of 10,000 g/mol to 80,000 g/mol. Polymer extrudates, such as cable-coatings and/or wire-coatings and films, including the bimodal polyethylene as well as methods of making the polymer extrudates are also provided.

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

Abstract: Polyethylene compositions, having a density from about 0.900 g/cm3 to about 0.950 g/cm3, a MI (I2, 190° C., 2.16 kg) from about 0.1 g/10 min to about 10 g/10 min, an MIR (I21/I2) from about 25 to about 80, an Mz greater than or equal to about 150,000 g/mol, and either an Mz/Mn ratio greater than or equal to about 8.0, an Mz/Mw ratio greater than or equal to about 2.4, or an (I2*Mz/Mn) from about 3 to about 100, are provided. The polyethylene compositions are useful in wire and cable, tape, and filament applications. Methods for producing the same are also provided.

Abstract: A cast film is made from at least one ethylene polymer which comprises from 75.0 mol % to 100.0 mol % of ethylene derived units and which has a density of from 0.900 g/cm3 to 0.926 g/cm3, a melt index (I2.16) from greater than 1.2 g/10 min to 6 g/10 min, a melt index ratio (I21.6/I2.16) of from 20 to 50, and a z-average molecular weight (Mz) of greater 150,000 g/mol. The cast film has an average flex crack resistance as measured by ASTM F392 of less than or equal to 15 holes/300 cm2 after 10,000 cycles, preferably 8±1 holes/300 cm2 after 10,000 cycles.

Abstract: Provided are oriented films comprising linear low density polyethylene polymer and having improved balance of properties including improved machine direction tear strength. The oriented polymer film has at least one layer comprising 50 to 100 wt. % of an ethylene-based polymer. The MDO polymer film has a normalized MD Elmendorf Tear (ASTM D-1922) of at least 40 g/?m. In certain embodiments, the MDO polymer film surprisingly does not tear when MD Elmendorf Tear is measured according to ASTM D-1922.

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

Abstract: A bimodal polyethylene is provided. The bimodal polyethylene may include a high molecular weight portion having a weight average molecular weight (Mw) of 100,000 g/mol to 1,000,000 g/mol and a low molecular weight portion having a Mw of 10,000 g/mol to 80,000 g/mol. Polymer extrudates, such as cable-coatings and/or wire-coatings and films, including the bimodal polyethylene as well as methods of making the polymer extrudates are also provided.

Abstract: Nanofiber electroprocessing apparatus comprising a conductive stylus having a 5 to 250 nm diameter tip; a collector spaced below the tip; a continuous supply of flowable polymer to the tip, and a power supply for creating a potential difference between the tip and the collector sufficient to produce a nanofiber. The conductive stylus may comprise an atomic force microscope (AFM) tip and may further be mounted within an AFM scanning holder having a mechanism for moving the tip. A method of electroprocessing a nanofiber comprises providing the conductive stylus, such as an AFM tip, providing a collector below the tip, supplying the tip with the flowable polymer, energizing the tip to create a potential difference between the tip and the collector, and thereby producing the nanofiber. Systems and methods for using nanofibers so created may be used for anticounterfeiting or object identification.