In some embodiments, the present disclosure provides a composition comprising 1) about 97.5 wt % to about 99.9 wt % of a first polyethylene having a density of about 0.91 g/cm.sup.3 to about 0.94 g/cm.sup.3, and a melt strength of about 10 mN or greater; and 2) about 0.1 wt % to about 2.5 wt % of a second polyethylene having an Mw of about 500,000 g/mol or more. In some embodiments, the composition is a film. In some embodiments, the present disclosure provides a method of making a composition comprising blending a first polyethylene of any embodiment described herein and a second polyethylene of any embodiment described herein.

An object of the present invention is to provide a stretchable polyester having shape followability and flexibility by elastic response and being able to suppress deterioration over time due to secondary crystallization. The present invention provides a stretchable polyester which is an aliphatic copolymer polyester containing two or more types of monomer units, wherein the stretchable polyester contains an α-form and an amorphous structure, and a degree of orientation determined by X-ray of the α-form is 50% or greater.

A method for creating a transition from an edge of an add-on part mounted on the outer surface of a rotor blade, including the steps: delimiting an application area on the rotor blade surface and the add-on part to be covered by a sealant compound with a thin and smooth masking tape; dispensing of the sealant on the application area; distribution of the sealant; removing the masking tape; and smoothening of a sealant transition step with a flexible tool, is provided.

A wind turbine rotor blade is also provided.

A polymerisable radiation-curable composition comprising:

(i) monomers, comprising at least (a) a first monomer having a TG (glass-transition point) of the homopolymer of said first monomer ≥120° C. and at least (b) a second monomer having a TG (glass-transition point) of the homopolymer of the second monomer ≤100° C., wherein at least one of the at least one first monomer or of the at least one second monomer has an alicyclic group, and
comprising (ii) at least one further component, comprising at least one photo-initiator for the UV and/or Vis spectral region or a photo-initiator system for the UV and/or Vis spectral region. Also disclosed is a blank in the form of a three-dimensional moulded body of a polymerised composition, in particular a radiation-cured composition, for producing 3D moulded bodies, dental prosthetic parts, orthopaedic appliances or dental pre-forms in a rapid prototyping, rapid manufacturing, or rapid tooling method.

A polyester-based film having excellent scratch resistance, durability, transparency, and visibility and a process for preparing the same. The polyester-based film comprises a base layer and a coating layer on at least one side of the base layer. The light passage according to Relationship 1 is 91% or more, or the total transmittance for light of 380 nm to 780 nm is 92% or more, it has excellent optical properties, durability, visibility, and reliability. Thus, it can be applied to display devices such as smartphones, tablet PCs, and laptops. In addition, in the polyester-based film according to an embodiment, the strain with respect to tensile load satisfies a specific range, whereby it is possible to achieve the flexibility that hardly causes deformation even when a certain load is maintained for a long period of time. Thus, it can be applied to flexible display devices, particularly, foldable display devices.

There is disclosed a hair fastener. The hair fastener is in the form of a loop for securing a log of hair within the loop. The hair fastener has an inner elastic core and an outer fabric enveloping the inner elastic core, wherein the elastic core is made of a band with a width of 2 to 6 mm and a thickness of 1 to 3 mm, and made of silicone or a material of thermoplastic elastomer (TPE) selected from the consisting of hydrogenated styrenic block copolymers (SEBS), thermoplastic polyurethane (TPU) and thermoplastic vulcanizates (TPV). The hair fastener is adapted to assume a first, default, configuration in which an opening defined and surrounded by the loop has a first area and a second, fully expanded, configuration in which the opening defined and surrounded by the loop has a second area.

Described is a wood-plastic composite material for structural components of transport pallet, said structural components being capable of being nailed together, having a matrix foamed by means of a blowing agent, wood meal fibres and an adhesion promoter. To create a wood-plastic composite material of this kind which enables a cost-efficient production of transport pallets with a wood-like appearance and constitutes a reliable replacement for the soft wood materials used up until now, at least with regard to weight and mechanical strength properties, it is proposed that the matrix, which comprises a long chain-branched polyolefin, has a mass fraction of 30-95%, the wood meal fibres have a mass fraction of 5-50% and the adhesion promoter has a mass fraction of up to 10% of the wood-plastic composite material, the composite material density being less than 0.3 g/cm.sup.3.

The present disclosure provides oriented multilayer films including a first layer, a second layer disposed on the first layer and a third layer disposed on the second layer, where the first layer and the third layer include a polyethylene independently selected from (i) a polyethylene having a density of about 0.94 g/cc or greater; (ii) a polyethylene copolymer including ethylene and a C.sub.4-C.sub.12 alpha-olefin and having a density 7 from about 0.927 g/cc to about 0.95 g/cc; or (iii) a mixture thereof, and at least one of the first layer or the third layer includes the polyethylene copolymer, the second layer includes a polyethylene composition having a density of about 0.91 g/cc or greater and the oriented multilayer film has a haze of about 10% or less and a 1% secant modulus in the direction of stretching of about 500 MPa or greater.

An additive manufacturing print head includes a spinneret defining a first channel configured to receive a first feedstock and a second channel configured to receive a second feedstock. The spinneret is configured to provide a bilayer extrudate including a layer of the first feedstock in direct contact with a layer of the second feedstock. The print head further includes a minimizer configured to receive the bilayer extrudate from the spinneret and to reduce a flow area of bilayer extrudate transverse to a flow direction of the bilayer extrudate, and a multiplier configured to transform the bilayer extrudate from the minimizer to a multilayer extrudate. The multilayer extrudate includes alternating layers of the first feedstock and the second feedstock.

A plastic molded lip structure may extend along a perimeter of a planar element and may include an outer wall, an inner wall, structural portions, and protruded features. The outer wall may extend in a normal direction from the planar element. The inner wall may be disposed in an inward direction relative to the outer wall. The structural portions may be disposed along structural sections of the perimeter and may include first portions of the inner wall and of the outer wall. The first portions may be disposed parallel to the inner wall and separated from the first portions by a first distance along the structural sections. The protruded features may be interposed between two structural portions and an inner wall may be separated from second portions of the outer wall by a second distance that is greater than the first distance.