A three-dimensional netted structure having an upper surface, a lower surface, two side surfaces a left end surface, and a right end surface, including at least a plurality of filaments helically and randomly entangled and thermally bonded together, wherein the filaments are formed out of a thermoplastic resin by extrusion molding followed by cooling with a liquid; and the netted structure is four-surface molded, the upper surface, the lower surface and the two side surfaces being molded. An apparatus and a method for manufacturing the three-dimensional netted structure.

The invention relates to a calender stack for an extruded material web (51) made from thermoplastic, in particular a film web, having (a) a stand (1) which has (i) a first guide rail set (2) which comprises two arcuate first guide rails (2, 2) and (ii) a second guide rail set (3) which comprises two arcuate second guide rails (3, 3), (b) a first calender roll (8) which can be rotated about a first calender roll rotational axis D8) and is mounted on the stand (1), (c) a second calender roll (9) which forms a calender with the first calender roll (8) and is fastened to the stand (1), (d) an adjusting roll (14) which can be rotated about an adjusting roll rotational axis (D14) and is mounted on the stand (1), and (e) a supporting device (34), on which the stand (1) is mounted rotatably in such a way that the first calender roll rotational axis (D8) remains stationary during a rotation of the stand (1). According to the invention, the stand (1) is configured in such a way that the adjusting roll (14) can be positioned at an angle of inclination () of at least 55, wherein the angle of inclination () is formed firstly between a horizontal which runs perpendicularly with respect to the first calender roll rotational axis (D8) and through the first calender roll rotational axis (D8), and secondly a straight line which runs perpendicularly with respect to the first calender roll rotational axis (D8) through the first calender roll rotational axis (D8) and through the adjusting roll rotational axis (D14).

The present invention provides an imprint apparatus that forms a pattern in an imprint material on a substrate using a mold including a pattern region, the apparatus comprising: a stage configured to be movable while holding the substrate; and a dispenser configured to discharge the imprint material, wherein a sensor, a receptor, and a mark are provided around a holding region where the substrate is held, in an upper surface of the stage, and the upper surface of the stage includes a first region that passes below the pattern region during movement of the stage between a position below the dispenser and a position below the mold, and a second region that does not pass below the pattern region during the movement, and the sensor, the receptor, and the mark are arranged in the second region.

An apparatus forms a pattern of an imprint material by curing the imprint material in a state in which the imprint material on a pattern formation region of a member, where a pattern is to be formed, is in contact with a pattern region of a mold. The apparatus includes a dispenser for placing the imprint material on the pattern formation region of the member and a non-pattern formation region of the member, outside the pattern formation region, a detector for detecting the non-pattern formation region in a state in which the imprint material has been placed on the pattern formation region and the non-pattern formation region by the dispenser, and a controller for performing processing for determining an abnormality in the dispenser based on a detection result of the non-pattern formation region by the detector.

A method for producing a molded body is provided. The molded body is made of a thermoplastic material and can be produced in a short molding cycle. The method includes a step of compressing a molding precursor including a thermoplastic resin between a pair of molding dies having an insulation site at a surface that comes into contact with the molding precursor, in order to obtain a molded body. The temperature T.sub.A of the molding precursor at the start of compression satisfies the following Formula 1: E(100)0.04<E (T.sub.A)<E(100)0.13. The temperature T.sub.B of the pair of molding dies at the start of compression satisfies the following Formula 2: E(100)0.3<E(T.sub.B)<E(100)0.7. The insulation site has a heat conduction coefficient of 5 W/(m.Math.K) or less, and the surface that comes into contact with the molding precursor has a dynamic friction coefficient of 0.25 or less.

A material handling and mold filling system is provided which directs the flow of molten plastic material from an extruder and allocates the molten material to a plurality of nozzles through the use of independently operated, variable valves. The system therefore provides independent streams of molten plastic material having variable temperatures and flow rates or volumes to particular sections or regions of the mold. This independent temperature or flow of molten plastic material facilitates the complete, rapid and accurate filling of the molds, reducing turbulence and other temperature or flow-related imperfections in the finished components. A multiphase material handling system is also disclosed for expeditious sequential and simultaneous filling and pressing of the mold and extracting the completed component from the system.

A resin panel according to an embodiment includes a core material, a reinforcing material, a skin material covering the core material and the reinforcing material, and a fastened member. A reinforcing material has a first plate provided on a front surface of the core material, a second plate provided on a back surface of the core material, and a connecting plate connecting the first plate and the second plate. The fastened member is attached to the skin material by a fastening member penetrating the skin material and the first plate or the second plate of the reinforcing material.

A method and a device is disclosed for jet-packing moulding a polymer pipeline. During a spiral winding stack moulding process, a pipeline is continuously moulded by embedding the melt in a moulded pipe blank under the conjunction of the jetting welding effect produced by the melt and the shaping effect of partial calendering. The device includes an extruder, a melt jetting mechanism, a partial calendering mechanism and a pipe diameter shaping and adjusting mechanism. The melt jetting mechanism is arranged at the extrusion end of the extruder and embedded in a moulded pipe blank. The partial calendering mechanism and the pipe diameter shaping and adjusting mechanism are distributed on the wall of the pipe blank in the circumferential direction. The partial calendering mechanism is arranged at the corresponding position of the melt jetting mechanism.

Systems, apparatus, and methods for double-sided imprinting are provided. An example system includes first rollers for moving a first web including a first template having a first imprinting feature, second rollers for moving a second web including a second template having a second imprinting feature, dispensers for dispensing resist, a locating system for locating reference marks on the first and second webs for aligning the first and second templates, a light source for curing the resist, such that a cured first resist has a first imprinted feature corresponding to the first imprinting feature on one side of the substrate and a cured second resist has a second imprinted feature corresponding to the second imprinting feature on the other side of the substrate, and a moving system for feeding in the substrate between the first and second templates and unloading the double-imprinted substrate from the first and second webs.

Calendering installation for the production of a reinforcing ply (600) for a tire, which has a frame (100), two extruders (200, 300) for feeding elastomer material, a reinforcing-thread feeding device (400), a calender (500) having a first pair of counter-rotating rollers, with a first working roller (52) and a first shaping roller (51), and a second pair of counter-rotating rollers, with a second working roller (53) and a second shaping roller (54), wherein a calendering nip (59) is formed between the working rolls (52, 53) in order to receive a first calendered rubber ply (57) delivered by the first pair of rollers (51, 52), a second calendered rubber ply (58) delivered by the second pair of rollers (53, 54), and the reinforcing threads (45) in order to supply the calendered reinforcing ply (600), which is conveyed to the outlet of the installation via guide rollers (62, 63).

According to the invention, the two extruders (200, 300) are superposed and arranged on either side of a horizontal plane P extending at the level of the guide rollers (62, 63).