A device and method enabling industrial continuous pressing, called extrusion of plastically/thermally mouldable substances such as metal, composite metal, plastic, composite or rubber, which is pressed to the profile by a process including a tool fixed member partially predefining the profile shape/cross-section before the profile is finally defined to a cross-section when the material passes rotating dies, which through contact with each other, cancel out main radial forces and the position of which may vary relative to other bearing surfaces or rotary bearing surfaces of the tool with which they define the final shape of the profile. The device and method enable the extrusion of pattern on the inside of hollow profiles and the extrusion of multiple profiles in one tool, because 80-98% of radial bearing forces are eliminated, allowing the installation of rotary dies where not previously possible, and almost unlimited opportunities in increased profile width.

The invention relates to a composite tube, in particular a corrugated tube, comprising a first wall section produced from a first plastic material, a second wall section produced from a second plastic material different from the first plastic material, and a third wall section produced from a third plastic material different from the first plastic material and the second plastic material, the first wall section, the second wall section, and the third wall section being adjacently arranged in a peripheral direction of the composite tube, the third wall section being arranged between the first wall section and the second wall section and connecting the first wall section to the second wall section, and the first wall section, the second wall section, and the third wall section respectively extending in a radial direction of the composite tube over an entire wall thickness thereof.

A method of making a flexible medical article or tube, for example, a sheath for a vascular access device, is provided. The method can include extruding a polymer, for example, a polycarbonate-urethane copolymer, to form a tube and annealing the extruded polymer. The method can further include cutting the extruded tube to a desired length before or after annealing, flaring one end of the annealed tube and over-molding the flared portion onto a hub, and forming the other end of the tube into a tip. A sheath formed by such a method is also provided.

A method of making a flexible medical article or tube, for example, a sheath for a vascular access device, is provided. The method can include extruding a polymer, for example, a polycarbonate-urethane copolymer, to form a tube and annealing the extruded polymer. The method can further include cutting the extruded tube to a desired length before or after annealing, flaring one end of the annealed tube and over-molding the flared portion onto a hub, and forming the other end of the tube into a tip. A sheath formed by such a method is also provided.

Provided are a method and an apparatus for extruding into a tube and filling the tube at a high speed and simultaneously sealing the tube. Specifically provided is a method for producing a polymer tube, containing a liquid therein and being sealed at constant intervals, the method including an extrusion step of continuously melt-extruding a polymer material through a die into at least one tube, while feeding a liquid into the tube to obtain at least one liquid-containing tube; and sealing step of discontinuously pressing the at least one liquid-containing tube between a pair of pressurizing members at constant intervals to cause pressure-bonding before the tube solidifies, while continuously taking up the extruded tube.

This invention relates to a roofing, cladding, or siding module, comprising an underlapping region extending from a head edge of the module and an exposed region extending from a foot edge of the module. The length of the foot edge defining the length of the module. The underlapping region is adapted to be substantially covered by the exposed region of an adjacent or overlapping module when installed on a building surface. The module is formed of at least one layer of extruded material. The layer so formed comprises at least 40% w/w filler and/or reinforcement, and one or more polymer(s).

A resin sheet having hairlike bodies arranged regularly on at least one surface of an underlayer can be manufactured by forming the bodies by: melt extruding, from a die with an extrusion molding method, a thermoplastic resin having, on a log-log graph having elongational viscosity (t) (unit: Pa.Math.S) as measured at a strain rate of 0.5 (unit: S1) and at a temperature at which elongation is possible as the vertical axis and elongation time t (unit: S) as the horizontal axis, a region in which the slope (log /log t) in the interval 0.1<t<1.0 is no greater than 0.5 and by the temperature range wherein the adhesive force in probe tack measurement is 0.05-0.25 N/mm2 at least partially overlapping with the temperature at which elongation is possible; and casting using a transfer roll on which a relief process has been performed and a touch roll.

A resin sheet having hairlike bodies arranged regularly on at least one surface of an underlayer can be manufactured by forming the bodies by: melt extruding, from a die with an extrusion molding method, a thermoplastic resin having, on a log-log graph having elongational viscosity (t) (unit: Pa.Math.S) as measured at a strain rate of 0.5 (unit: S1) and at a temperature at which elongation is possible as the vertical axis and elongation time t (unit: S) as the horizontal axis, a region in which the slope (log /log t) in the interval 0.1<t<1.0 is no greater than 0.5 and by the temperature range wherein the adhesive force in probe tack measurement is 0.05-0.25 N/mm2 at least partially overlapping with the temperature at which elongation is possible; and casting using a transfer roll on which a relief process has been performed and a touch roll.

Provided are a method and an apparatus for extruding into a tube and filling the tube at a high speed and simultaneously sealing the tube. Specifically provided is a method for producing a polymer tube, containing a liquid therein and being sealed at constant intervals, the method including an extrusion step of continuously melt-extruding a polymer material through a die into at least one tube, while feeding a liquid into the tube to obtain at least one liquid-containing tube; and sealing step of discontinuously pressing the at least one liquid-containing tube between a pair of pressurizing members at constant intervals to cause pressure-bonding before the tube solidifies, while continuously taking up the extruded tube.

In a cost-effective and qualitatively better method for producing spacers for a winding unit of an electrical high-voltage device, at least two starting components are mixed together in a mixing chamber under vacuum to form a component mixture. The component mixture is transferred to an extrusion housing, likewise under vacuum, of an extruder in which a transport device is arranged and which is equipped with a mouthpiece delimiting an outlet opening. The extrudate exiting from the mouthpiece is cured by the addition of heat in a vacuum in order to obtain the spacers.