A composite fiber may include at least one reinforcing filament formed of a first material. A second material maybe systematically deposited in a printed onto the at least one reinforcing filament such that at least one of a length, a width, and a thickness of the second material varies across a surface of the at least one reinforcing filament. The printed pattern may alter one or more properties of a composite structure containing the composite fiber.

A coated tow includes a fiber bundle composed of continuous reinforcement fibers that form a flat substrate in a ribbon shape and a thermoplastic-based overcoating applied to the flat substrate to form a uni-directional tape. An extruded tape includes a plurality of cords of twisted fiber yarns each composed of continuous reinforcement fibers, a thermoplastic overcoating applied to each of the cords, and a high density polyethylene (HDPE) that encases the plurality of cords to form a uni-directional tape. The reinforcement fibers have continuous filaments aligned lengthwise along a length each of the cords. A process of producing the coated tow or extruded tape includes feeding one or more spools of continuous fiber tow under tension control, sinking the continuous fiber tow in a chemical bath, passing the wetted continuous fiber tow through one or more squeezing rollers, and passing the continuous fiber tow through an oven.

A bicycle rim basically includes a first annular side surface portion, a second annular side surface portion, an annular connecting portion and an outermost layer. The first annular side surface portion includes a first braking surface. The second annular side surface portion includes a second braking surface. The epoxy resin layer is an example of a nonmetallic layer. The annular connecting portion connects the first and second annular side surface portions. The soft additive granules are disposed in at least one of the first and second annular side surface portions. The epoxy resin layer is disposed in at least one of the first and second annular side surface portions. The soft additive granules are at least partially embedded in the epoxy resin layer. The outermost layer covers the epoxy resin layer and the soft additive granules.

A method of manufacturing a natural composite material multilayer structure includes: manufacturing a felt layer; spraying a thermosetting resin onto one surface or both surfaces of the felt layer; forming an intermediate layer of the sprayed thermosetting resin to form a composite material; heat-pressing the composite material through a heated mold; and cold-pressing the heat-compressed composite material.

An antiviral filament and an antiviral three-dimensionally printed component including an antiviral polymer including a base polymer, and an antiviral agent incorporated in the base polymer, wherein the antiviral agent exhibits a phase transition temperature of 200 degrees Centigrade or greater. A method of fabricating a three-dimensional component including feeding an antiviral filament into an extrusion nozzle, the antiviral filament comprising an antiviral polymer; applying heat and pressure to the antiviral filament to melt the antiviral filament in the extrusion nozzle; extruding the antiviral filament from the extrusion nozzle; depositing the extruded antiviral filament into layers; and forming a three-dimensional component from the layers of extruded antiviral filament.

A method for coloring a carbon nanotube (CNT) product is provided, including placing a CNT product in an electric circuit to ground the product, charging a plurality of pigment molecules with an opposite charge from the CNT product, applying a coating of the charged pigment molecules to a surface of the CNT product, and exposing the coating to a temperature sufficient to cure the coating, while allowing the coating to form a substantially conformal film on the surface of the CNT product.

A wiper system configured to apply and wipe one or more coatings on a rigid tube includes a tapered wiper tapering between a wider end defining an inlet orifice and a narrower end defining an exit orifice. The narrower end of the tapered wiper includes a series of slits arranged circumferentially around the exit orifice. The slits define a series of resilient tabs configured to deflect radially outward when contacted by one or more formations on an outer surface of the rigid tube and configured to return to a neutral position when the one or more formations have passed through the exit orifice. The wiper system may also include a gimbal supporting the tapered wiper. The gimbal is configured to permit the tapered wiper to rotate about first and second mutually perpendicular axes when the tapered wiper is contacted by a bowed rigid tube.

A process and related assembly for applying a fast curing plastic spray coating to a substrate article having a specified shape and size with an exposed surface. The coating can include any polyurethane or polyurea composition and incorporating a fast curing catalyst which, upon delivery to a pneumatically charged nozzle, providing for aerated application from the nozzle upon the exposed surface. The spray coating further includes a cure time of between 5-10 seconds from aerated delivery and can be applied to any of a wire harness, metal surface or injection molded plastic pallet. In the specific instance of a wire harness coating. In the instance of a wire harness article, a plurality of branches terminate in end connectors, the coating providing insulating and fire-protection to the underlying harness.

Various embodiments directed towards methods of applying sizing to fibers are disclosed herein. In some embodiments, solvent can be used to dissolve a sizing material into a solution, which can then be used to coat the fibers. In some embodiments, a water bath is used to coagulate a sizing on the fiber surface and to remove the remove solvent after coating the fibers, so that water vapor can be created during a subsequent drying step as opposed to solvent vapors. In some embodiments, strong acids or strong bases can be used as the solvent.

The present invention relates to an impregnation process for a functional fibrous substrate, a liquid composition for implementing this process and the obtained impregnated fibrous substrate. The impregnated functional fibrous substrate is suitable for manufacturing mechanical or structured parts or articles. In particular the present invention deals with an industrial process for impregnating a functional fibrous substrate or long functional fibers with a viscous liquid composition containing mainly monomer components. This viscous composition is called hereafter liquid monomer syrup. The invention concerns also a functional fibrous substrate pre-impregnated with said syrup which is useful for manufacturing mechanical or structured parts or articles. More particular the impregnation of functional fibrous substrate with the monomer syrup is achieved in a mould. The present invention concerns also manufacturing process for manufacturing mechanical or structured parts or articles and three-dimensional mechanical or structured parts obtained by this process.