The invention is directed to a method for manufacturing a foil having a variable strip geometry, which makes it possible to supply a foil that bears a complex security feature. The present invention is further directed to a corresponding data carrier having the foil supplied, and to the foil itself. The invention further relates to an extruder system for manufacturing a foil having a variable strip geometry and to a computer program product having control commands that implement the proposed method and/or operate the proposed extruder system.

The invention is directed to a method for manufacturing a foil having a variable strip geometry, which makes it possible to supply a foil that bears a complex security feature. The present invention is further directed to a corresponding data carrier having the foil supplied, and to the foil itself. The invention further relates to an extruder system for manufacturing a foil having a variable strip geometry and to a computer program product having control commands that implement the proposed method and/or operate the proposed extruder system.

A splittable introducer sheath includes a tubular body portion formed from a first material and at least one stripe extending an entire length of the main body portion, the at least one stripe being formed form a second material. The first material is one of a medium-density polyethylene modified with a friction-reducing additive or high-density polyethylene (HDPE) modified with a friction-reducing additive. The second material is a thermoplastic elastomer modified with a siloxane additive. The sheath is dividable longitudinally along the at least one stripe.

A transparent multilayer coextruded heat shrinkable barrier film is useful for high-value packaging applications such as food and medical device packaging. The transparent multilayer coextruded heat shrinkable barrier film includes first and second outer layers formed using a transparent polyester or polyester copolymer; an inner nanolayer sequence including a plurality of nanolayers a) including ethylene vinyl alcohol, alternating with nanolayers b) including at least one of ethylene ethyl acrylate, low density polyethylene and linear low density polyethylene, each of the nanolayers b) having a degree of crystallinity less than about 45%; and adhesive layers between each of the two outer layers and the inner nanolayer sequence. The film has a light transmittance of at least about 80% and a heat shrunk of at least about ten percent in at least one direction.

A transparent multilayer coextruded heat shrinkable barrier film is useful for high-value packaging applications such as food and medical device packaging. The transparent multilayer coextruded heat shrinkable barrier film includes first and second outer layers formed using a transparent polyester or polyester copolymer; an inner nanolayer sequence including a plurality of nanolayers a) including ethylene vinyl alcohol, alternating with nanolayers b) including at least one of ethylene ethyl acrylate, low density polyethylene and linear low density polyethylene, each of the nanolayers b) having a degree of crystallinity less than about 45%; and adhesive layers between each of the two outer layers and the inner nanolayer sequence. The film has a light transmittance of at least about 80% and a heat shrunk of at least about ten percent in at least one direction.

A multi-component extrusion die head for producing a composite tube comprises an extrusion nozzle, a main die head, and a melt flow distributor device. The main die head is configured to supply the extrusion nozzle with a first melt flow and a second melt flow, which are guided separately from one anther in the extrusion nozzle away from the main die head and toward a nozzle outlet of the extrusion nozzle. The melt flow distributor device is arranged in the extrusion nozzle outside of the main die head and is configured to split the first melt flow in a peripheral direction thereof, and to supply the second melt flow to the first melt flow such that at least one section of the second melt flow is arranged within the first melt flow in the peripheral direction.

A multi-component extrusion die head for producing a composite tube comprises an extrusion nozzle, a main die head, and a melt flow distributor device. The main die head is configured to supply the extrusion nozzle with a first melt flow and a second melt flow, which are guided separately from one anther in the extrusion nozzle away from the main die head and toward a nozzle outlet of the extrusion nozzle. The melt flow distributor device is arranged in the extrusion nozzle outside of the main die head and is configured to split the first melt flow in a peripheral direction thereof, and to supply the second melt flow to the first melt flow such that at least one section of the second melt flow is arranged within the first melt flow in the peripheral direction.

A hybrid scaling and patterning apparatus for producing thin films with multi-material, customized patterns is disclosed. The apparatus includes a slot die body integrated with multiple inlets and corresponding converging channels passing materials through the die body in a planar, continuous laminar flow. The hybrid scaling and patterning apparatus may be used in a method of preparing multi-material, patterned thin film materials.

A method for assembling an assembly comprising a tape (100) of retaining elements and a substrate (200), said method comprising the following steps: a step of forming a tape of retaining elements by dispensing a molding material into a molding device (1), so as to form a tape (100) of retaining elements comprising a base (51) presenting a bottom face (511) and a top face (512), the top face (511) of the base (51) being provided with retaining elements; and a step of applying a substrate (200) against the bottom face (511) of the base (51) prior to said bottom face (512) of the base (51) solidifying in such a manner as to cause the substrate (200) to penetrate at least in part beyond a plane defined by the bottom face (511) of the base (51) of the tape (100).

A method for assembling an assembly comprising a tape (100) of retaining elements and a substrate (200), said method comprising the following steps: a step of forming a tape of retaining elements by dispensing a molding material into a molding device (1), so as to form a tape (100) of retaining elements comprising a base (51) presenting a bottom face (511) and a top face (512), the top face (511) of the base (51) being provided with retaining elements; and a step of applying a substrate (200) against the bottom face (511) of the base (51) prior to said bottom face (512) of the base (51) solidifying in such a manner as to cause the substrate (200) to penetrate at least in part beyond a plane defined by the bottom face (511) of the base (51) of the tape (100).