B29K2301/12

Lightning strike protection surfacer and method of manufacturing the same
11712860 · 2023-08-01 · ·

A thermoplastic surfacer for providing lightning strike protection to a composite component of an aircraft, methods of manufacturing the surfacer, and methods of applying the surfacer to a composite part. The thermoplastic surfacer includes a broadgood having a thermoplastic resin, one or more fillers embedded into the broadgood, and a lightning strike protection mesh or foil embedded into the broadgood. When applying the surfacer to a composite part of an aircraft, the method includes draping the surfacer on an at least partially unconsolidated composite part, consolidating the at least partially unconsolidated composite part by heating the part to a temperature at or above a melt temperature of a resins used in the part and in the surfacer, and filling at least one surface defect in the consolidated part using the thermoplastic polymer resin and milled fibers provided in the thermoplastic surfacer.

Manufacturing method of halogen-free flame-retardant thermoplastic braided fiber reinforced polymer composite board and product thereof

A manufacturing method of a halogen-free flame-retardant thermoplastic braided fiber reinforced polymer composite board, comprising steps of: preparing a recycled material containing a halogen-free flame-retardant thermoplastic braided fiber reinforced polymer composite; adding a polymer base material to the recycled material to form a core layer material and extruding the core layer material with a low shear extruder; hot pressing the core layer material by rollers to obtain a recycled fiber core layer; preparing a reinforcement layer containing a fiber material or a fabric with pores; and stacking and hot pressing the recycled fiber core layer and the reinforcement layer.

Fiber reinforced thermoplastic resin molded article and fiber reinforced thermoplastic resin molding material

A fiber reinforced thermoplastic resin molded article contains inorganic fibers (A), organic fibers (B), and a thermoplastic resin (C), the fiber reinforced thermoplastic resin molded article containing 5 to 45 parts by weight of the inorganic fibers (A), 1 to 45 parts by weight of the organic fibers (B), and 10 to 94 parts by weight of the thermoplastic resin (C), based on 100 parts by weight of the total of the inorganic fibers (A), the organic fibers (B), and the thermoplastic resin (C), the inorganic fibers (A) in the fiber reinforced thermoplastic resin molded article having a weight average fiber length (L.sub.wa) of 0.01 mm or more and 3 mm or less, the organic fibers (B) having a weight average fiber length (L.sub.wb) of more than 4 mm and 20 mm or less.

Lightning strike protection surfacer and method of manufacturing the same
11504925 · 2022-11-22 · ·

A thermoplastic surfacer for providing lightning strike protection to a composite component of an aircraft, methods of manufacturing the surfacer, and methods of applying the surfacer to a composite part. The thermoplastic surfacer includes a broadgood having an amorphous thermoplastic resin, one or more fillers embedded into the broadgood, and a lightning strike protection mesh or foil embedded into the broadgood. When applying the surfacer to a composite part of an aircraft, the method includes draping the surfacer on an at least partially unconsolidated composite part, consolidating the at least partially unconsolidated composite part by heating the part to a temperature at or above a melt temperature of a resins used in the part and in the surfacer, and filling at least one surface defect in the consolidated part using the amorphous thermoplastic polymer resin and milled fibers provided in the thermoplastic surfacer.

Method for preparing natural fiber composite material for injection molding by using convergent nozzle heating jig
11584040 · 2023-02-21 ·

The present invention relates to a manufacturing method of a natural fiber composite material for injection molding using a reduced nozzle heating jig, and particularly, to a manufacturing method of a natural fiber composite material for injection molding using a reduced nozzle heating jig, which is configured to include: combining natural fibers and synthetic fibers (S1); heat-pressing the combined ply yarn while passing through a reduced nozzle heating jig 100 and melting and pressing the synthetic fibers and fusing the synthetic fibers to the natural fibers (S2); and palletizing the mixed ply yarn (S3).

Vehicle component made from a fiber preform of commingled fiber bundle for overmolding
11571838 · 2023-02-07 · ·

A vehicle component that includes at least one fiber preform. The fiber preform includes a substrate, a fiber bundle having one or more types of reinforcing fibers, and a thread. The fiber bundle is arranged on the substrate and attached to the substrate by a plurality of stitches of the thread to form a first preform layer having a principal orientation. The vehicle component includes a core having a geometry with at least one edge and at least one the fiber preforms positioned along the at least one edge, the core and the fiber preform being overmolded in a resin. A process of making the vehicle component includes providing the core having the at least one edge, positioning the at least one fiber preform along the at least one edge, and overmolding the core and the at least one fiber preform in the resin.

LIGHTNING STRIKE PROTECTION SURFACER AND METHOD OF MANUFACTURING THE SAME
20230086362 · 2023-03-23 · ·

A thermoplastic surfacer for providing lightning strike protection to a composite component of an aircraft, methods of manufacturing the surfacer, and methods of applying the surfacer to a composite part. The thermoplastic surfacer includes a broadgood having a thermoplastic resin, one or more fillers embedded into the broadgood, and a lightning strike protection mesh or foil embedded into the broadgood. When applying the surfacer to a composite part of an aircraft, the method includes draping the surfacer on an at least partially unconsolidated composite part, consolidating the at least partially unconsolidated composite part by heating the part to a temperature at or above a melt temperature of a resins used in the part and in the surfacer, and filling at least one surface defect in the consolidated part using the thermoplastic polymer resin and milled fibers provided in the thermoplastic surfacer.

Mesh Network
20220339897 · 2022-10-27 ·

A meshwork has a layer forming a mesh, the mesh layer being disposed between parallel tension ribbons which are opposite one another in pairs. The tension ribbons have a thermoplastic bonding layer on the side facing the mesh layer and are connected to one another and to the mesh layer via the bonding layer. The mesh layer takes the form of a plastic net having meshwork webs which are connected to one another in a materially bonded manner and which are stretched and form diamond-shaped meshes, the longitudinal diagonals of which extend transversely to the tension ribbons.

Repulpable container

A repulpable insulated container assembly having a container formed of paper such as corrugated cardboard or varying paper materials and defining an interior; and a repulpable insert placed within the interior of the container and formed of a first paper layer; and a paper fiber pad coupled to the first paper layer.

Ultrasonic weld-bonding of thermoplastic composites

Methods for ultrasonic welding of thermoplastic polymer workpieces and assemblies made therefrom are provided. The method may comprise disposing a first region of a first thermoplastic polymer workpiece and a second region of a second thermoplastic polymer workpiece between an ultrasonic horn and an anvil of an ultrasonic welding device. The first workpiece has a preformed deformation and at least one of the first and/or second workpieces has an adhesive precursor applied thereto. The ultrasonic horn or anvil seats within the preformed deformation. Ultrasonic energy is applied from the ultrasonic horn to create a weld nugget between the first and second workpieces. The assembly thus formed has a green strength sufficient to be further processed immediately. The methods provide a robust weld joint with controlled adhesive bondline thickness.