The present disclosure relates to an additive manufacturing (AM) method for making a three-dimensional (3D) object, comprising a) the provision of providing a powdered polymer material (M) comprising at least one poly(ether ether ketone) (PEEK) polymer, and at least one poly(aryl ether sulfone) (PAES) polymer, b) the deposition of successive layers of the powdered polymer material; and c) the selective sintering of each layer prior to the deposition of the subsequent layer, wherein the powdered polymer material (M) is heated before step c) to a temperature Tp (° C.): Tp<Tg+40, wherein Tg (° C.) is the glass transition temperature of the PAES polymer, as measured by differential scanning calorimetry (DSC) according to ASTM D3418.

An in-situ melt processing method for forming a fiber thermoplastic resin composite overwrapped workpiece, such as a composite overwrapped pressure vessel. Carbon fiber, or other types of fiber, are combined with a thermoplastic resin system. The selected fiber tow and the resin are prepared for impregnation of the two by the resin. The resin is melted and the carbon fiber is impregnated with the melted resin under pressure at the filament winding machine delivery head, under pressure and the molten composite is maintained and is applied to the heated surface of a workpiece. The surface of the workpiece is heated to the melting point of the thermoplastic resin so that the molten composite more efficiently adheres to the heated surface of the workpiece and so that the layers of composite remain molten resulting in better adherence of the layers to one another.

A radome for housing a radar system comprises a plurality of interconnected curved radome thermoplastic composite material panels, each curved radome thermoplastic composite material panel having a plurality of interconnecting edges, a foam core, an inner skin, an outer skin, and a plurality of three-dimensional fiber bundles tying the inner skin and the outer skin to each other through the foam core, inhibiting delamination. The radome includes a hydrophobic exterior surface that is self-cleaning and requires zero maintenance for 25 years.

A radome for housing a radar system comprises a plurality of interconnected curved radome thermoplastic composite material panels, each curved radome thermoplastic composite material panel having a plurality of interconnecting edges, a foam core, an inner skin, an outer skin, and a plurality of three-dimensional fiber bundles tying the inner skin and the outer skin to each other through the foam core, inhibiting delamination. The radome includes a hydrophobic exterior surface that is self-cleaning and requires zero maintenance for 25 years.

Method for manufacturing a reinforced part, including the steps of: producing a support structure and then covering the support structure, at least partially, with at least one composite material including reinforcement fibres, with local adhesion of the support structure and/or the composite material, during positioning thereof, to ensure its retention on the support structure, the support structure being an integral part of the reinforcing part.

Method for manufacturing a reinforced part, including the steps of: producing a support structure and then covering the support structure, at least partially, with at least one composite material including reinforcement fibres, with local adhesion of the support structure and/or the composite material, during positioning thereof, to ensure its retention on the support structure, the support structure being an integral part of the reinforcing part.

A method for printing a three-dimensional part with an additive manufacturing system includes providing a consumable feedstock material comprising a semi-crystalline polymer containing one or more secondary materials, wherein the consumable feedstock material has a process window in which crystalline kinetics are either accelerated or retarded. The consumable feedstock material is melted in the additive manufacturing system. At least a portion of the three-dimensional part from the melted consumable feedstock material in a build environment maintained within the process window.

The present invention relates to a method for preparing a foam for impregnating a liquid-phase cosmetic material, wherein the foam can be used while impregnating a liquid-phase or solid-phase cosmetic composition, such as a solution, an emulsion, a gel, a cream, or a suspension. According to the present invention, disclosed is a method for preparing a foam for impregnating a liquid-phase cosmetic material, the method comprising the steps of: (a) preparing a polyester polyol obtained by putting a polyester polyol in a chamber, followed by deflation at a temperature of 55-65° C. and mitigation under conditions of a pressure of 0.1-0.2 kPa for 60 minutes, and then lowering the temperature to 25-35° C. followed by supply of nitrogen and mitigation under conditions of a pressure of 2-3 kPa for 48 hours; (b) preparing a polyether polyol obtained by putting a polyether polyol in a chamber, followed by mitigation under conditions of a temperature of 15-25° C. and a pressure of 0.1-0.2 kPa for 60 minutes, supply of nitrogen, and mitigation under conditions of ,a pressure of 2-3 kPa for 48 hours; (c) injecting and preparing a foaming agent, a catalyst, and a surfactant in tanks according to capacity demands, respectively; (d) sequentially putting, in a mixing and stirring tank, the polyester polyol, polyether polyol, foaming agent, catalyst, and surfactant at a mixing ratio, and then performing continuous foaming with stirring at 5000 rpm under conditions of a temperature of 22-24° C. and a tank internal pressure of 3 kPa; (e) aging, for 48 hours, a foam formed after the completion of the foaming step; and (f) finishing the foam to manufacture a product.

An object which the present invention is to achieve is to provide a urethane composition capable of providing a molded product having excellent heat resistance and high hardness. The present invention is to provide a urethane composition containing a main agent (i) including a urethane prepolymer having an isocyanate group obtained by allowing a polyol (A) and a polyisocyanate (B) to react with each other, and a curing agent (ii), in which the polyol (A) includes a polyether polyol (a1) obtained by polymerizing an aromatic compound (a1-1) having two or more active hydrogen atom-containing groups and an alkylene oxide (a1-2), and a polishing material obtained by curing the urethane composition with heat, followed by slicing.

A method for forming a thermoplastic body having regions with varied material composition and/or porosity. Powder blends comprising a thermoplastic polymer, a sacrificial porogen and an inorganic reinforcement or filler are molded to form complementary parts with closely toleranced mating surfaces. The parts are formed discretely, assembled and compression molded to provide a unitary article that is free from discernible boundaries between the assembled parts. Each part in the assembly has differences in composition and/or porosity, and the assembly has accurate physical features throughout the sections of the formed article, without distortion and nonuniformities caused by variable compaction and densification rates in methods that involve compression molding powder blends in a single step.