The present disclosure relates to how to engineer reversible elasticity in thin films and/or layers and/or substrates, using a repeated Y-shaped motif, which is cut out through the film and/or layer and/or substrate. As an example, using a 75 μm thick polyimide (PI) foil, macroscopic dog-bone shaped structures with a range of geometrical parameters of the Y shape have been prepared according to an embodiment of the present disclosure. The tensile strain response of the film at its point of fracture was then recorded. The structures were also confirmed using finite element modeling. Upon stretching, the PI ligaments locally deflect out of plane, allowing the foil to macroscopically stretch.

A vascular stent assembly includes at least a first and a second strut, each including a thickness and a depth. The assembly includes a pair of end radii, with each of the first and second struts extending from one of the pair of end radii. A thickness of at least one of the first and second struts includes a tapering profile extending from one of the end radii to another of the end radii, the tapering profile following a continuously increasing or decreasing function through at least half a length of the at least one strut.

Methods for creating semolina flour-based shape-changing food from a multi-layered dough with at least one grooved surface. The dough layers have difference compositions including natural, staple and edible ingredients. The dough is exposed to stimuli during dehydration (e.g., baking) or hydration (e.g., boiling) processes.

A thin ribbon spirally wound polymer conduit and method of forming, wherein a helical reinforcing bead is interposed adjacent overlapping layers of ribbon. Further, a method of continuously forming spirally wound conduit wherein a sacrificial layer, preferably having a different base polymer to that of the conduit, is first applied to the former before the conduit is formed overtop.

A cover panel for a cabin of a vehicle and provided with a weakening for the opening of an underlying airbag. The weakening consists of a sequence of not-through incisions which are separated from each other, are arranged along a weakening line, are obtained from an internal surface of the cover panel, and terminate at a non-zero distance from an external surface of the cover panel. In some sections of the weakening line there are first incisions each having a first width while in other sections of the weakening line there are second incisions each having a second width greater than the first width. The weakening line has a plurality of portions that connect to one another in at least one connection area, wherein the corresponding portions of the weakening line consist of the second incisions only while, next to the connection area, the corresponding portions of the weakening line consist of the first incisions only.

A flexible packaging laminate is formed to have a built-in opening and reclose feature by forming the laminate as a two-part structure having an outer structure joined in face-to-face relation with an inner structure. Score lines are formed in both structures to enable an opening to be formed through the laminate by lifting an opening portion (e.g., a flap or the like) of the two structures out of the plane of the laminate. The score line through the outer structure defines a larger opening than the score line through the inner structure, such that a marginal region of the outer structure extends beyond the edge of the opening portion of the inner structure. A pressure-sensitive adhesive is used to re-adhere the marginal region to an underlying surface of the inner structure adjacent the opening through the laminate.

A synthetic polymer film whose surface has a plurality of raised or recessed portions, wherein a two-dimensional size of the plurality of raised or recessed portions is in a range of not less than 0.5 μm and not more than 3 μm when viewed in a normal direction of the synthetic polymer film, the synthetic polymer film has a crosslink structure and contains an organic carboxylic acid, at the lapse of 5 minutes since placing a 200 μL drop of water on the surface of the synthetic polymer film, a pH of an aqueous solution is less than 4, and an area equivalent circle diameter of the aqueous solution is not less than 20 mm, and at the lapse of 60 seconds since placing a drop of water on the surface of the synthetic polymer film, a static contact angle of the water drop with respect to the surface is less than 3°.

The invention comprises, in an embodiment, a resealable packaging structure comprising a container having a bottom and at least one sidewall extending upwardly therefrom, wherein the sidewall terminates in a flange. A flexible resealable lid is sealed to the flange. The lid comprises a polyethylene terephthalate layer disposed adjacent the flange, a pressure sensitive adhesive layer disposed adjacent the polyethylene terephthalate layer, and an oriented polypropylene layer disposed adjacent the pressure sensitive adhesive layer. The polyethylene terephthalate layer comprises a laser scored line which penetrates through the thickness of the inner layer but not through the outer layer and defines an opening portion that can be lifted out of the plane of the inner layer, thereby creating an opening through the lid defined by the laser score line.

The present disclosure concerns a method for embossing a component, a method for connecting a component to a second component via a substance-to-substance bond, and a device, e.g., a heat exchanger, having such a component. The method for embossing includes embossing a support groove into the component at least in some sections at a first surface portion of the component; embossing a functional groove into the component at the first surface portion; wherein the functional groove is arranged spaced apart from the support groove at least in some sections; and wherein the functional groove is formed for partially receiving a second component for a substance-to-substance bond.

An object of the present invention is to provide a film and a pouch having basic characteristics such as a strength and barrier properties and achieving good openability. A film (10) according to the present invention includes at least a sealant layer (11), the film is formed with a cut guide line (G), and the cut guide line includes an impression (11A) formed in a surface of the sealant layer. In a pouch (30), the films are superimposed in a state where the sealant layers face each other, and peripheral edge parts are heat-sealed. The cut guide line is placed extending across at least a position where heat seal is not performed.