Abstract:
Provided are films such as high-stalk films made from polyethylene polymers, and methods for making these films. Such films preferably have at least one of the following properties: (a) MD 1% Secant Modulus of less than 400 MPa, (b) Elmendorf Tear MD of at least 100 g/mil, (c) Dart drop of at least 200 g/mil, (d) puncture resistance break energy of at least 120 mJ/μm, (e) TD shrink at 150° C. of at least 40% or at least 30% at 120° C.; and (f) haze value of less than 40%.
Abstract:
The present invention is directed to methods of making nanofiber yarns. In some embodiments, the nanotube yarns comprise carbon nanotubes. Particularly, such carbon nanotube yarns of the present invention provide unique properties and property combinations such as extreme toughness, resistance to failure at knots, high electrical and thermal conductivities, high absorption of energy that occurs reversibly, up to 13% strain-to-failure compared with the few percent strain-to-failure of other fibers with similar toughness, very high resistance to creep, retention of strength even when heated in air at 450° C. for one hour, and very high radiation and UV resistance, even when irradiated in air.
Abstract:
A micro-structured composite material, comprising a matrix, containing at least one type of thermoplastic plastic, and at least one type of lignin and/or at least one lignin derivative homogeneously distributed in the matrix, characterised in that the at least one type of lignin and/or at least one lignin derivative is in particulate form and the cross-sectional area of the particles is round, approximately round, circular, approximately circular, elliptical or approximately elliptical.
Abstract:
A method and apparatus for extrusion of an article is provided. A die assembly can apply flows of thermoplastic material to an array of reinforcing cables to form a composite extrusion. A slider fabric can be bonded to one side of the composite extrusion. After exiting the die assembly, the slider fabric can act to support the extrudate as it passes along an elongate mandrel, which can cause the base of the slider fabric to change shape from a flat profile to the final internal profile of the article. The extruded article can then be cooled to solidify the material. The die can include cooling for the slider fabric and means for promoting penetration of the thermoplastic into reinforcing cables.