The invention relates to a method for the manufacture of thermoplastic fibrous materials comprising forming at least one foamed liquid comprising water and at least one foaming agent, forming a dispersion by dispersing fibers including long fibers in said at least one foamed liquid comprising water and at least one foaming agent, mixing the dispersion with a foamable liquid or dispersion comprising at least one thermoplastic polymer, forming at least one foamed dispersion, and conveying the foamed dispersion or dispersions to a foraminous support and draining liquid trough the foraminous support to form a web or a sheet, to obtain the thermoplastic fibrous material. The invention also relates to materials and products obtainable by the method, and uses related thereto.

A set of augmented reality (AR) or virtual reality (VR) glasses are disclosed. The glasses comprise a fiber reinforced structure. The fiber reinforced structure includes a continuous fiber component. The fiber reinforced structure also includes a thermoplastic material injection molded over the continuous fiber component, wherein the thermoplastic material surrounds the continuous fiber component. The glasses also comprise electronics that are coupled to the fiber reinforced structure, wherein the electronics are configured to facilitate presentment of imagery onto a lens of the glasses.

In an embodiment, an energy-absorbing device can comprise: a polymer reinforcement structure, wherein the polymer reinforcement structure comprises a polymer matrix and chopped fibers; and a shell comprising 2 walls extending from a back and forming a shell channel, wherein the shell comprises continuous fibers and a resin matrix; wherein the polymer reinforcement structure is located in the shell channel.

The present invention relates to a composite material comprising one or more fibre layers composed of a fibre material and an aromatic polycarbonate-based matrix material. The fibre layer(s) is/are embedded in the matrix material. The present invention further relates to a process for producing these fibre composite materials, to multilayer composite materials comprising several layers of fibre composite material, and to the use of the composite materials for production of components or housing components or housings, and to the components, housing components or housings themselves.

A preform includes a stack of a plurality of fiber materials. The fiber materials each include a first fiber layer including a reinforcing fiber and having a sheet shape, in which the reinforcing fiber has a melting point and a tensile strength that are higher than a melting point and a tensile strength of an aliphatic polyamide fiber, and a second fiber layer including the aliphatic polyamide fiber and having a sheet shape, and provided on at least one of surfaces of the first fiber layer. The aliphatic polyamide fiber includes a first polyamide resin and a second polyamide resin having a melting point higher than a melting point of the first polyamide resin by 7 degrees centigrade to 50 degrees centigrade.

A composite structure is fabricated by laying up at least one ply of fiber reinforcement and at least one layer of resin on a tool. The resin film layer is formed by laying strips of resin film. The fiber reinforcement is infused with resin from the resin layer.

Two laminating sheets each formed by laminating a carbon fiber sheet and a film of a thermoplastic resin are set on heating in an area of a mold corresponding to a tubular portion of a rack housing. The mold is clamped, the carbon fiber sheet is impregnated with the thermoplastic resin of the film, each of the two laminating sheets is pressed into a shape with a half tube corresponding to a half circumference of the tubular portion and connection portions at both ends of the half tube in a circumferential direction, and two half tubes are bonded together at the connection portions thereof to form the tubular portion.

The present invention relates to a molding material, having: (A): a fiber substrate made of carbon fibers 5 mm or longer; (B): at least either an epoxy (meth)acrylate resin or an unsaturated polyester resin; (C): (C-1) inorganic fibrous filler with a cross-sectional area of at least 0.8 μm.sup.2, or (C-2) inorganic flaky filler with a cross-sectional area of at least 0.05 μm.sup.2, both of which have an aspect ratio of 2.0 or higher and a length of less than 3 mm; and (D): a polyisocyanate compound.

A molding die and a molding method are provided, which allow high-cycle manufacturing of molded bodies of a thermoplastic resin or thermoplastic resin-fiber composite material, thereby improving productivity. Molding is performed using a molding die including a plurality of die portions that form a cavity in which a molded body is molded, the molding die including: a first temperature adjusting unit disposed in the vicinity of the cavity surface and capable of at least cooling the cavity surface; and a second temperature adjusting unit disposed on a side of the first temperature adjusting unit opposite from the cavity surface and capable of at least heating the cavity surface, wherein a distance L0 from the cavity surface to the first temperature adjusting unit and a distance L1 from the cavity surface to a surface of the corresponding die portion opposite from the cavity surface satisfy the relationship: (L1/L0)>3.

Methods for microwave melting of fiber mixtures to form composite materials include placing the fiber mixture in a receptacle located in a microwave oven. The methods further include microwave heating the mixture, causing a heat activated compression mechanism to automatically increase compressive force on the mixture, thereby eliminating air and void volumes. The heat activated compression mechanism can include a shape memory alloy wire connecting first and second compression brackets, or one or more ceramic blocks configured to increase in volume and thereby increase compression on the mixture.