A process for manufacturing finished wire and cable having reduced coefficient of friction and pulling force during installation, includes providing a payoff reel containing at least one internal conductor wire; supplying the at least one internal conductor wire from the reel to at least one extruder; providing the least one extruder, wherein the at least one extruder applies an insulating material and a polymerized jacket composition over the at least one internal conductor wire, wherein the polymerized jacket composition comprises a predetermined amount by weight of nylon; and at least 3% by weight of a silica providing a cooling device for lowering the temperature of the extruded insulating material and the polymerized jacket composition and cooling the insulating material and the polymerized jacket composition in the cooling device; and, reeling onto a storage reel the finished, cooled, wire and cable for storage and distribution.

A method of extruding filament comprises the steps of cutting a bulk source material into pieces having size S.sub.1, performing a first extrusion pass comprising the steps of melting the pieces in an extruding device at a temperature T.sub.1 and extruding a first filament at an extrusion speed V.sub.1, and performing at least one additional extrusion pass k comprising the steps of cutting the first filament into pieces having size S.sub.k, melting the pieces in an extruding device at temperature T.sub.k, and extruding a final filament at an extrusion speed V.sub.k. A system for extruding filament is also described.

The present disclosure provides a novel method of 3D printing using frontal polymerization chemistry. This method enables the printing of tough, high quality thermosets in a short time with the option of adding fiber reinforcement. As such, it facilitates fabrication of mechanically robust 3D-printed devices and structures.

A method of producing an elastic profile with longitudinally recurring transverse protrusions includes extruding a primary profile at a primary extruder; extruding a secondary profile at a secondary extruder, the secondary profile includes a substrate layer and transverse protrusions, the secondary extruder includes an extrusion die, wherein a rotating molding wheel forms a wall of the extrusion die, the molding wheel having recesses functioning as molds for the transverse protrusions within the extrusion die; joining the primary profile and the substrate layer of the secondary profile at a joining point for fusion bonding forming a composite structure. A rotating pressing wheel, may press on the composite structure against a bedding separate from the molding wheel. The primary profile may travel along an entirely straight path from the primary extruder to the joining point. The joining occurs at a nip formed between the molding wheel and a flat and stationary bedding.

A calibration and cooling tank of an extrusion line, which connects to an extrusion tool, wherein a vacuum can be applied to the calibration and cooling tank for calibrating the plastic melt emerging from the extrusion tool, wherein the calibration and cooling tank extends along an extrusion axis. The calibration and cooling tank is modularly structured, wherein at least one module forms a calibration and cooling section and the module has a connection region on both sides to which an additional module can be attached. The connection region includes a flange that extends from the base element of the calibration and cooling tank to the outside.

A process for fabricating a powder coating composition having a desired color from solid input filaments. A plurality of solid input filaments is fed to a mixer in accordance with an input formulation for a color. The input filaments are liquefied at the mixer, and the liquefied input filaments are combined together in the mixer into an extrudate mixture. The extrudate mixture is removed from the mixer, solidified, and then the solidified extrudate mixture is milled into a powder.

The present invention provides a method for preparing organometallic composite material, comprising: providing PVC resin, activated calcium carbonate, plant fiber, calcium stearate, barium sulfate, paraffin, sodium bicarbonate, zinc laurate, nanometre titanium dioxide, organometallic salt, shell powder, carbon nanotube, talcum powder and stabilizer; mixing and heating; subject to first cooling after extrusion and second cooling under vacuum; towing to obtain the organometallic composite material, wherein the organometallic salt is a benzoic acid metal salt mixture. The present method can significantly reduce the processing temperature of PVC composite by 20 to 50 C., and also increase the toughness and strength of the material so as to alleviate the exudation of the composite material as in the conventional technologies and extend the lifespan of the composite material.

Methods and systems for making a film made of dynamically vulcanized thermoplastic elastomeric material are provided herein. The subject methods and systems achieve dimensional stability of an elastic film by applying thermal treatment as part of the film making process and enhance the shrinkage of the film by intentionally with stretching the film while hot and freezing the film in the stretch. The systems and methods are useful in controlling shrinkage of DVA post film extrusion.

Foam pads and method for making foam pads for use under an activity surface which meet or exceed G-max and HIC criteria under ASTM F1292-17 for playground equipment at heights of at least 9 to 12 feet and/or wherein the thickness loss of such pads at approximately one hour after removal of a 75 lb./in..sup.2 load applied to the pad at 25% deflection for one hour pursuant to ASTM D3575-08 Suffix B is less than 7%.

A system according to various embodiments can include a source for supplying a material to be treated, an extruder, at least two screws, and a drive coupled to the screws for axially rotating the screws. The extruder includes an inlet for receiving the material, which is fed therein in a controlled manner. The screws are provided within the housing of the extruder. The screws have a plurality of compression and release stages that create mechanical heat which is directly applied to the material to change the mechanical properties of the material thereby facilitating a conversion of a physical state of the material from a non-compactable state to a compactable state as the screws rotate and move the material longitudinally along the screws to produce a final product, for example, a feed tub for use as an animal feed.