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.

Coextruded polymeric layer having first and second opposed major surfaces, the coextruded polymeric layer comprising foam and the coextruded polymeric layer comprising features extending from or into the first major surface by at least 100 micrometers, the first major surface comprising a first material having a first percent elongation at break, the second major surface comprising a second material having a second percent elongation at break, wherein the first percent elongation at break is greater than 100 percent of the second percent elongation at break. Coextended polymeric layers described herein are useful, for example, in vibration damping applications (e.g., a vibration damping laminate comprising a kinetic spacer comprising the coextruded polymeric layers).

A security marking has a physically unclonable function (PUF) wherein the PUF includes a disordered multilayer photonic crystal structure having an electromagnetic transmission and/or reflection spectrum and/or spectra upon receipt of electromagnetic radiation within a photonic bandgap region of the structure that is unique to the structure.

In various aspects, the present disclosure pertains to thermoformed webs that comprise polymer films having one or more thermoformed cavities contained therein, the polymer films comprising a polymer blend of amorphous polyethylene terephthalate (APET), polyethylene furanoate (PEF), and a copolyester that comprises (a) dicarboxylic acid residues (e.g., dicarboxylic acid residues that comprise terephthalic acid residues and, optionally, one or more additional dicarboxylic acid residues) and (b) diol residues (e.g., diol residues comprising ethylene glycol residues and, optionally, one or more additional diol monomer residues). Other aspects of the disclosure pertain to methods of forming such thermoformed webs, packaged products comprising such thermoformed webs, and methods of recycling such thermoformed webs.

The invention relates to a distribution block for extrusion melt and a method for coextruding films with the aid of a distribution block for extrusion melt, wherein the distribution block comprises a movable sleeve.

The invention relates to a distribution block for extrusion melt and a method for coextruding films with the aid of a distribution block for extrusion melt, wherein the distribution block comprises a movable sleeve.

A resin sheet for molding includes a substrate layer that contains polycarbonate resin (a1), a high-hardness resin layer that contains high-hardness resin and that is provided on at least one surface of the substrate layer, a hard coat layer or a hard coat antiglare layer that is provided on at least one surface of the high-hardness resin layer, and a wet antireflection layer that is laminated on a surface of the hard coat layer or the hard coat antiglare layer on the side opposite from the high-hardness resin layer, wherein the glass transition temperatures of the polycarbonate resin (a1) and the high-hardness resin satisfy the following relationship: −10° C.≤(glass transition temperature of high-hardness resin)−(glass transition temperature of polycarbonate resin (a1))≤40° C.

A thermoplastic resin sheet having hair-like bodies expressing good tactile sensation and surface quality, and a molded article thereof. The thermoplastic resin sheet is arranged regularly on at least one surface of a base layer, a continuous phase being formed without a structural boundary between the base layer and the hair-like bodies, wherein the hair-like bodies have an average height of 30 μm or more and 500 μm or less, the surface having the hair-like bodies has an L* value of 20 or less in an L*a*b* color system based on color difference measurement (JIS Z 8729), and the surface having the hairlike bodies has a 60-degree specular gloss (JIS Z 8741) of 1.5% or less.

Provided is a flexible tube production apparatus capable of shortening the length of a resin layer in which the mixing ratio between two kinds of resins changes. The flexible tube production apparatus includes: two extruders extruding resins different from each other; two valves provided corresponding to the two extruders, respectively; a kneading mechanism kneading the resins supplied from the two extruders via the two valves; a die extruding the resins kneaded by the kneading mechanism; and a control device controlling the two valves to switch from a first state where one extruder and the kneading mechanism communicate with each other and communication between the other extruder and the kneading mechanism is cut off, to a second state where the other extruder and the kneading mechanism communicate with each other and communication between the one extruder and the kneading mechanism is cut off, when the flexible tube is extruded.