Abstract: Method for handling material in a pneumatic materials handling system, in which material is input from an input aperture of an input point and is handled with a shaping device, arranged in connection with the input point or in the proximity of it, to be more compact and is transferred onwards, which shaping device is a rotary shaper, which includes a rotatable handling device, which includes an aperture, which is arranged eccentrically with respect to the axis of rotation, and which rotary shaper includes at least one stationary handling device, in which case the material to be handled is conducted into the rotary shaper and/or through it at least partly by means of gravity. The material to be handled is conducted into the rotary shaper and/or through it at least partly by means of suction and/or a pressure difference.

Abstract: The invention relates to a device for producing a toroid-shaped fiber composite product. The device comprises at least two fiber or fiber composite material dispensing units (2, 3), the dispensing units being adapted to place a fiber (4) or a fiber composite material onto the surface of a toroid-shaped mandrel (5); positioning means to effectuate relative movement of the mandrel and the dispensing units during placement of the fiber or fiber composite material. The invention further relates to a method for producing a toroid-shaped fiber composite product, preferably with a concave cross-section, in particular the rim of a bicycle wheel. The method comprises providing a toroid-shaped mandrel, dispensing fibers or fiber composite material from at least two dispensing units, placing the fibers or fiber composite material onto the mandrel while effectuating a relative movement of the mandrel and the dispensing units, and reshaping at least part of the mandrel, preferably by thermoforming.

Abstract: The invention relates to a method and a device for producing a moulded body having microstructures from moulding material. The method for producing a moulded body having microstructures on a carrier out of moulding material is effected by inputting a moulding material into a container (10) comprising a mould cavity (14), wherein at least one micro-structured mould (12) is provided in the mould cavity. Furthermore, the centrifugation of a container (10) is carried out until the moulding material has completely entered into the structure of the mould (12). Thereafter, the curing of the moulding material is carried out to form a moulded body having microstructures, which is then removed from the mould (12) and the container (10).

Abstract: A rotatable turntable tool is used in trimming wheel-thrown pottery. The turntable tool includes a base portion, a bearing member, and a cap portion which is rotatably attached to the base portion. A method of trimming an unfired clay workpiece includes steps of inverting the workpiece and placing it at a central portion of a wheel head on a potter's wheel; placing the turntable tool on top of a central portion of the inverted workpiece; pressing downwardly on the cap portion of the turntable tool while rotating said wheel head to stabilize the workpiece, whereby the base portion of the turntable tool rotates with the workpiece, while the cap portion is substantially restrained from rotating; and applying a trimming tool to an edge of the workpiece to remove unwanted clay therefrom.

Abstract: Apparatus for treating at least one web passing through the apparatus includes a first roller and a second roller positioned adjacent the first roller to define a nip for receiving the at least one web. The first roller has a pair of spaced apart ends, a length extending between the ends, a circumference, and at least one bearer ring extending around the circumference of the first roller generally at a center of the first roller.

Abstract: The present invention relates to a method for manufacturing an air mat that reduces a thickness of a cushion part by means of both slush molding and rotational molding, enhances a bonding efficiency between a lower sheet and the cushion part, and obviates the need of any separate communicating members for forming the communicating passageways for a plurality of air pockets of the cushion part, thereby simplifying manufacturing processes.

Abstract: Methods and systems for fabrication of injection molded optical components are disclosed. In one embodiment, a moldplate having one or more cavities is configured to receive injected optical material within walls of the cavities. The cavities are designed with a predetermined geometric profile approximately corresponding to a predetermined optical profile of an optical element to be formed therein. When molten optical material is injected into the cavities of the moldplate, the injected optical material forms a meniscus due to surface tension between the optical material and the wall of the cavities. The meniscus thus provides a shape corresponding to the predetermined optical profile. The optical material is then rapidly cured with actinic radiation, and a desired optical element with high-precision dimensions is formed within the cavities of the moldplate.

Abstract: This invention comprises a self-supporting, temperature-stable, indicia-bearing laminate of at least one layer of a non-oriented polyolefin film having an indicia array and a layer of a non-oriented polyolefin support film. The indicia layer laminate is formed by printing a carrier sheet with at least one layer of a printing ink comprising a mixture of particulate polyolefin, indicia material and a polyolefin-compatible resin. The polyolefin support film is printed as a layer over the indicia layer with a mixture of a polyolefin and a polyolefin-compatible resin. The printed layers are cured into non-oriented films, forming an indicia transfer. The transfer is used by removing the indicia-bearing laminate from the carrier sheet and applying the laminate to the inside surface of a rotational mold where it melts and fuses into the outer wall of a polyolefin product during the formation of the product in the rotational molding cycle.

Abstract: Disclosed is a process for the preparation of a stabilized and flame retardant polyethylene article, which process comprises adding an effective stabilizing amount of one or more macrocyclic hindered amine light stabilizers and an effective flame retarding amount of one or more brominated flame retardants to a polyethylene substrate and subjecting the resultant polyethylene mixture to a high temperature of 250° C. or above, for instance to a temperature of 280° C. or above. The polyethylene articles are for example prepared by a high temperature rotomolding process or a high temperature film or laminate film extrusion process. The articles are white in color, have a smooth surface and produce little or no odor.

Abstract: A polymer having a density of from about 0.94 g/cm3 to about 0.96 g/cm3 and a primary structure parameter 2 (PSP2 value) of greater than about 8.5, wherein an article formed from the polymer has an environmental stress crack resistance of equal to or greater than about 1000 hours when measured in accordance with ASTM D 1693 condition A. A polymer having at least one lower molecular weight component and at least one higher molecular weight component and having a PSP2 value of equal to or greater than about 8.5, wherein an article formed from the polymer has an environmental stress crack resistance of greater than about 1000 hours when measured in accordance with ASTM D 1693 condition A.

Abstract: A bead-forming apparatus and method for its use are described. The bead-forming apparatus includes a base with a pair of legs extending from a top surface. First ends of the legs couple to respective eccentric elements. The eccentric elements removeably and rotatably couple to a platen. Second ends of the legs are rotatably and slideably mated with a gear train disposed within the base. The legs are slideably translatable into the base and the gear train maintains a rotational orientation of the legs and the eccentric elements coupled thereto. The platen is thus moveable through a circular path defined by the rotation of the eccentric elements and legs. As such, a plug of moldable material placed between the base and the platen and in contact with the platen, is formed into a double-cone shape by movement of the platen through the circular path.

Abstract: Provided are blends of linear low density polyethylene copolymers with very low density, low density, medium density, high density, and differentiated polyethylenes and other polymers. The invention also includes articles produced from the linear low density polyethylene and polyethylene blends described herein.

Abstract: The method for making a continuous laminate, in particular suitable as a spar cap or another part of a wind energy turbine rotor blade comprises the steps of providing a plurality of parallel fibers, embedding the fibers in a curable matrix material, curing the matrix material so as to obtain a fiber reinforced laminate having upper and lower major surfaces, and forming channels into at least one of the upper and lower major surfaces of the laminate wherein the channels on the upper and/or lower major surfaces are angled with respect to the direction of the fibers.

Abstract: A method for making a mold, the method includes steps of: providing a substrate and a retaining member, the retaining member being made of polytetrafluoroethylene, and being ring-shaped; engaging the substrate with the retaining member; disposing viscous liquid polydimethyl siloxane containing material on the substrate within the retaining member; rotating the retaining member and the substrate to cause the polydimethyl siloxane containing material to spread out on the substrate and form a polydimethyl siloxane containing layer; press-molding the polydimethyl siloxane containing layer using a stamper to form one or more molding portions on the polydimethyl siloxane containing layer; solidifying the polydimethyl siloxane containing layer with the one or more molding portions; separating the stamper from the polydimethyl siloxane containing layer; and separating the substrate from the retaining member to obtain a mold.

Abstract: An apparatus including a fairing having a tail portion and an end portion capable of suppressing a vortex-induced vibration of a tubular. The apparatus further including a stabilizing member attached to the end portion of the fairing, the stabilizing member dimensioned to increase a thickness of the end portion of the fairing and a flange member attached to the stabilizing member, the flange member dimensioned to increase a chord dimension of the fairing so as to improve a stability of the fairing.

Abstract: A method of manufacturing a cylindrical member having anti-slip projections formed on axial end faces, the method comprising the steps of: employing a roller die, which is provided with a circumferential die groove of annular form extending through a medial section in a generatrix direction of a die face defined by an integral tapered outside peripheral face, and with a plurality of sloping die grooves extending in a tapered slope direction of the die face situated to both large-diameter and small-diameter sides of the circumferential die groove; providing plastic working to the axial end face with the small-diameter side of the roller die facing towards an inner peripheral side of the cylindrical member and with the large-diameter side facing towards an outer peripheral side, by pushing the die face against the axial end face while rotating circumferentially; and forming simultaneously an annular water barrier projection and the anti-slip projections.

Abstract: The instant invention provides rotational molded articles, and method of making the same. The rotational molded articles according to the present invention comprise a polyethylene composition comprising: (a) at least 85 percent by weight of the units derived from ethylene; and (b) less than 15 percent by weight of units derived from one or more ?-olefin comonomers; wherein the polyethylene composition has a density in the range of 0.930 to 0.945 g/cm3, a molecular weight distribution (Mw/Mn) in the range of 1.70 to 3.50, a melt index (I2) in the range of 0.5 to 20 g/10 minutes, a molecular weight distribution (Mz/Mw) in the range of less than 2.5, vinyl unsaturation of less than 0.06 vinyls per one thousand carbon atoms present in the backbone of the polyethylene composition.

Abstract: A method for producing leather pellets, and a method for producing compound granules from leather pellets and a polymer material, for use in molded parts or films. The leather pellets are produced through the following steps: Shavings, crust leather remnants and finished leather waste are obtained as waste products in leather production and finished leather processing; the shavings, crust leather remnants and finished leather waste are milled into ground leather stock comprising leather fibers; the ground stock is pressed into leather pellets; and the leather pellets are dried to a residual moisture content of no more than 30% by weight. The leather pellets can be mixed with a polymer material at a ratio of 10-95% by weight and bonded to one another and shaped forming compound granules. The compound granules can be used to produce molded parts by injection molding or films by calendering.

Abstract: The present invention discloses the use in rotomolding or slush molding applications of a composition comprising a polyolefin, a processing aid and optionally a UV-stabilizer.

Abstract: An apparatus for forming air-laid absorbent cores, having a first and second mat-forming wheel, each of the mat-forming wheels having a series of moulds along its peripheral surface, air-laying means for supplying air-entrained fibrous material to the moulds, suction means maintaining the formed core elements in their moulds during a part of the path of the moulds on the respective mat-forming wheel and means for transferring a core element on the second mat-forming wheel onto a core element on the first mat-forming wheel while the latter core element still is maintained in its mould, at least the air-laying means associated with the second mat-forming wheel having means for supplying a mixture of air-entrained fibrous material and discrete particles. The two mat-forming wheels form a nip between each other that the second core element will abut the first core element before transfer.

Abstract: An apparatus for forming air-laid absorbent cores, having a first and second mat-forming wheel. Means are also provided for applying a first and second web of casing material onto the peripheral surface of the first and second mat-forming wheel, respectively, for providing a third web of casing material into the nip between the first and second mat-forming wheel, for applying an adhesive coating on both sides of the third web, the mat-forming wheels being so positioned that the formed core elements on the respective first and second mat-forming wheels will abut the third web when passing the nip between the first and second mat-forming wheel, and for pressing together the portions of the three webs located outside the contour of the core element, containing the first and second core element, whereby the air-laid core elements will encapsulated in casing material. Also, a method for forming air-laid absorbent cores.

Abstract: An apparatus for forming air-laid absorbent cores, having a first and second mat-forming wheel, means for transferring a core element on the first mat-forming wheel onto a core element on the second mat-forming wheel while the latter core element still is maintained in its mold. The apparatus has means for applying a protective layer to the bottom of each mold of the second mat-forming wheel, means for applying a web of casing material on the peripheral surface of the first mat-forming wheel, means for guiding said web of casing material onto the periphery of the second mat-forming wheel, and means for changing the synchronization of the mat-forming wheels in order to control the time at which the leading edge of a mold on one of the mat-forming wheels passes the nip. A method of producing cores with different sizes without change of molds.

Abstract: A rotocast composite hybrid method for efficiently making strong but lightweight parts. The method includes filling a mold with a volume of resin through an access port and then sealing the access port by positioning a lid over the access port. The method includes mounting the mold in a rotocasting machine and then operating the rotocasting machine to rotate the mold about two orthogonal axes until a layer of the resin is applied uniformly over an inner surface of the mold to form an outer wall of a part. The method includes removing the lid and then applying a reinforcement material (e.g., sheets of woven fiberglass) to an inner surface of the outer wall of the part through the access port. The applying of the reinforcement material also involves wet layup such as by binding the reinforcement material to the inner surface by applying additional resin to the reinforcement material.

Abstract: A molding method for forming an impeller, includes a mold clamping process having a first mold for forming one side of blades, a second mold firmly clamped with the first mold, and a core arranged at the first mold relative to the blades, the mold clamping process clamping the first mold to the second mold in a state where the core is arranged between the first mold and the second mold, an injecting process injecting resin in a cavity obtained by the mold clamping process, and a mold removing process including the steps of releasing at least the first mold from the clamped state obtained by the mold clamping process to generate an opened portion in the first mold after the resin is hardened, rotating the core about a rotational axis toward the opened portion of the first mold, and separating the core from the resin-molded impeller.

Abstract: A thermoplastic composition comprising the melt blending product of one or more thermoplastic polymers; and from 2 to 20 PHR, of one or more gloss reducing additives wherein each gloss reducing additive comprises a (meth)acrylate copolymer having a glass transition temperature of greater than or equal to 40° C. and 0.001 to 0.04 PHM derived from one or more crosslinking monomers and/or graft-linking agents having two or more ethylenically unsaturated radicals capable of free-radical polymerization, wherein a test specimen produced from the thermoplastic composition has roughness according to DIN 4768 of Ra greater than or equal to 0.6 microns, Rz greater than or equal to 6 microns, Rmax greater than or equal to 7 microns, and a gloss less than 65, 75 degree angle, is provided. Methods for producing the thermoplastic compositions, methods for producing articles from the thermoplastic compositions and such articles are also provided.

Abstract: The present techniques relate to catalyst compositions, methods, and polymers encompassing a Group 4 metallocene compound comprising bridging ?5-cyclopentadienyl-type ligands, typically in combination with a cocatalyst, and a activator. The compositions and methods presented herein include ethylene polymers with low melt elasticity.

Abstract: Device for eliminating oversize pellets from balling disks, includes a plow-like tool defined by a series of cylindrical rods that are coplanar and parallel to each other and incorporated into a horizontal plate, whose medial portion incorporates a vertical tubular arm that protrudes vertically and upwards to pass axially through and be selectively and adjustably attached to a vertical sleeve that is incorporated in a distal portion of an extensible arm, which composes a trussed structure that is adjacently attached to a balling disk and protrudes over its area of operation.

Abstract: The invention relates to a method for making light-weight dimensionally stable wood-thermoplastic composite material composed of wood chips and a thermoplastic polycaprolactone. The manufacturing process of composite material comprising the steps of compounding virgin materials with single-screw extruder and production of uniform homogeneous plate-like composite with calendering apparatus. The calendering process comprises of several cycles, folding, cooling and reheating steps. During the gentle manufacturing process fragile wood chips maintain their 3-D structural properties in polymer matrix resulting light, mechanically strong wood-plastic composite.

Abstract: A process for manufacturing a stiffener made of composite material with an inside surface of a concave shape, includes producing a flat strip (18) that includes at least one layer of fibers; heating it to be able to deform it; connecting one of the lateral edges of the strip (18) to a rotary mandrel (36) in such a way as to cause a winding of the strip on the mandrel (36) during its rotation, whereby the mandrel (36) has an outside surface (46) of which at least one part corresponds to the inside surface of the stiffener to be produced; and exerting tension at the other lateral edge of the strip (18) in a direction that is opposite to the direction of the movement of the strip (18) caused by the winding on the rotary mandrel (36).

Abstract: A rotomolded window-well egress (190) includes a textured or artistic surface on (196) a front side (193), strengthening irregularities (200, 210), in the form of ribs (200) or corrugations (210), molded on a back side (199), and means (202) for preventing the strengthening irregularities (200, 210) from printing out onto the textured or artistic surface (196).

Abstract: A rotationally molded large-diameter pipe fitting, the wall structure of which is characterized as having a generally smooth interior surface and an exterior surface that is defined by a plurality of axially-spaced circumferentially extending ribs which are monolithically formed and homogeneous with the smooth interior surface of the fitting. The fitting is seamless and modularly designed with integral coupling elements at each terminal end, and with a ribbed wall structure profile capable of withstanding the loads typically found in buried applications with watertight performance requirements, where such ribbed wall structure meets the following dimensions and dimensional ratios: Rib Sidewall Angle (95-105 degrees); Bottom/Top Rib Thickness Ratio (1.80-2.80); Pitch/Rib Height Ratio (1.50-1.95); Rib Height/Fitting Diameter Ratio (0.04-0.09); and Avg. Rib Thickness/Rib Height Ratio (0.28-0.40).

Abstract: An optic is produced by the steps of placing a polymer inside a rotateable cylindrical chamber, the rotateable cylindrical chamber having an outside wall, rotating the cylindrical chamber, heating the rotating chamber forcing the polymer to the outside wall of the cylindrical chamber, allowing the rotateable cylindrical chamber to cool while rotating producing an optic substrate with a substrate surface, sizing the optic substrate, and coating the substrate surface of the optic substrate to produce the optic with an optic surface.

Abstract: The invention provides a structure for automotive vehicle manufactured by rotational molding process having enough stiffness, strength and durability to sustain the weight of passengers without requiring any supporting sub-frames. The multilayer structure along with foam layer is used to provide additional impact strength and reliability to the structure of the vehicle against accidents. The single step production of structurally complex shaped body parts for automotive vehicle enables economic manufacturing and assembly of the automotive vehicle.

Abstract: A method and apparatus for pressing and forming a raw material into a granulated material having a uniform shape by a pair of rolls (1, 2), wherein at least one of the rolls of the pair of rolls has a predetermined number of holes (16) for forming the granulated material on an outer surface thereof, and pressing pins (17), which are inserted into respective holes, and a predetermined number of members (18) for supporting the pins installed in the one of the rolls of the pair of rolls, the members for supporting the pressing pins being configured to be separate from the pressing pins so that the pressing pins slide on the members for supporting the pressing pins; and wherein the granulated material is ejected by the pressing pins as the pressing pins slide on the members for supporting the pins.

Abstract: A valve in a mold as to provide a potential airflow pathway either way, the valving having at least a substantially closed condition from which it can be opened by a pressure differential in one direction that is below that which will cause it to open or fail to allow an airflow in the other direction.

Abstract: A toilet cleaner composition containing perfume, at least one non-ionic surfactant, at least one alkylbenzene sulfonate, and at least one olefin sulfonate, is sufficiently malleable that it may be shaped into rotationally symmetrical toilet cleaner blocks, and in particular into spherical blocks, using a rolling machine or a press. The resulting rotationally-symmetrical toilet cleaner block may be part of a toilet cleaning system comprising at least one toilet cleaner block and at least one dispenser device for use in a toilet.

Abstract: Described herein is a method forming a belt suitable for use with an image forming system. The method includes coating a composition of a polyimide, a phosphate ester and a solvent onto an outer surface of a rotating metal belt, and subsequently curing and releasing the composition from the metal belt.

Abstract: Sheet having fastening elements, comprising a base strip made of thermoplastic material and at least one element made from the strip, the element consisting of a stem extending in a transverse, in particular vertical, direction to the plane of the base strip, and having a cross section which is substantially uniform or decreases from the base strip towards the apex of the stem, in particular as far as the apex of the stem, and a part forming a head which protrudes laterally from the apex of the stem.

Abstract: The present invention discloses the use in rotomolding or slush molding applications of a composition comprising a polyolefin, a processing aid and optionally a UV-stabilizer.

Abstract: The invention relates to a method and a device for the production of plastic molded skins, which are formed by consecutively performing a plurality of partial melting processes of a plurality of plastic materials, wherein the first plastic material is applied to the mold as a plastic powder in a centrifugal molding method and the second plastic material by a spraying method.

Abstract: A handrail for a gangway and a method for manufacturing the same where the handrail comprises a single, continuous piece of plastic.

Abstract: A method for molding plastic articles with artistic patterns comprises: producing an artistic surface (10) by laying up stones, or masonry (12), or by any other suitable method, conforming a curable plastic mat (16) to the artistic surface (10); and subsequently curing the curable plastic mat (16) into a cured negative (24) of the artistic surface (10). Optionally, the cured negative (24) is curved prior to making a plaster positive (38). The present invention also includes a window-well egress (90) that is more attractive because of an artistic surface (96), and is stronger by virtue of inner (92) and outer (98) walls with a space (102) therebetween, and ribs (108), or corrugations (110) on the outer wall (98).

Abstract: The present invention relates to a method for manufacturing an air mat that reduces the number of manufacturing processes by means of rotational molding, while preventing the generation of defective products, to a device for molding an air mat, and to an air mat manufactured and molded by the method and device. In a method for manufacturing an air mat formed in such a manner as to integrally couple a cushion part having a plurality of air bags arranged therein for containing air at the insides thereof with a plate-shaped lower sheet disposed on the lower surface of the cushion part, the method includes the steps of: preparing a lower mold having a plurality of air bag molding recesses having given depths arranged at given intervals thereon, for molding the cushion part of the air mat.

Abstract: A dryer is provided that includes a drum for drying wet laundry via contact of the laundry with process air, an air inlet duct operable to convey process air to the drum, an outlet duct operable to convey process air that has exited the drum, a heating device located in the inlet air duct, and a fan containing an impeller. The fan applies a motive power to process air to effect flow of process air and the impeller has oblique blades.

Abstract: There is provided a nanoimprint apparatus. The nanoimprint apparatus transfers a pattern formed on a surface of a mold to a transfer layer which is formed partially or entirely on a side surface of a substantially cylindrical or columnar substrate. The nanoimprint apparatus includes: a first jig which is in contact with the substrate 102; a second jig which rotatably supports the first jig; a press unit which is connected to the second jig to press the substrate on the mold 104 through the first and second jigs; and a movable holding unit which holds the mold and moves the mold 104 in a direction substantially perpendicular to a pressing force.

Abstract: A method is provided for connecting a filter medium to a connection element, wherein the filter medium and the connection element are brought into contact with each other and connected to each other by exposure to laser radiation. The connection element may be welded to the end faces of filter folds in strips having a width of 1 mm. The connection element may include a laser light-absorbing layer and a laser light-transparent layer. The filter medium and connection elements may comprise nonwoven fabrics.

Abstract: The invention relates to a rotomolding process for forming a multi-layer article of two different polymers with different melting points in which an outer layer polymer powder is added to a rotational molder along with an inner layer polymer powder that is separated from the outer layer powder by a release film. The release film has a particular melting point that is greater than that of the outer layer polymer and preferably between the melting points of the inside layer and outside layer polymers. In one embodiment, the release layer forms an enclosure or bag in which the inner layer (higher melting point) powder is enclosed. In another embodiment the release film forms a barrier between an insulated cavity and the mold. The process provides a means for a “one-shot” rotomolding method.

Abstract: A metal mold holding method includes: rotating a metal mold by a first rotating portion; rotating a holding member by a second rotating portion in the same direction as that of the metal mold such that a difference between a speed of rotation of the holding member and that of the metal mold which rotates is smaller than a difference between the speed of rotation of the holding member and that of the metal mold in a case where the speed of rotation of the metal mold is zero; and holding the metal mold which rotates by the holding member which rotates.

Abstract: Polymeric microstructures and nanostructures can be prepared with use of a tip to pattern a surface. A tip can be used to pattern a structure which can initiate polymerization. The structure can be then exposed to monomer to induce polymerization at the structure. Alternatively, a tip can be used to pattern a surface with a monomer in which the surface is treated with polymerization catalyst so that polymerization occurs at the patterning site. Ring-opening metathesis polymerization can be carried out with use of the tip to control the polymerization. The tip can be a sharp tip as used in for example an atomic force microscope tip. Norbornene types of monomers can be used. Biological macromolecules can be also prepared.

Abstract: The present invention encompasses a method of forming a housing that locates an internal element. This method is instigated by firstly the steps of locating an internal element within a mould, and then introducing a plastic material into the mould. Next the mould is rotated to form a plastic exterior surface of a housing on the internal surface of the mould with said internal element being located inside the exterior surface of the housing formed.