The invention concerns a method for producing an optical lens element, in particular for illumination purposes, in particular for producing a headlight lens for a vehicle headlight, in particular for a motor vehicle headlight (10), wherein a pre-lens element (42, 43) is injection molded using at least one mold by heating liquefied transparent plastic, wherein the pre-lens element (42, 43) being cooled in such a way that the plastic solidifies, and at least one optically effective surface of the pre-lens element (42, 43) then being heated in such a way that the plastic on the optically effective surface can be shaped, in particular up to a depth of not more than 1000 micrometers, wherein the pre-lens element (42, 43) is pressed with the optically effective surface in a final contour mold to form the lens element.

The invention provides shape-stable products for storing and releasing thermal energy, based on thermoplastic polymer compositions containing organic phase change materials (PCM) incorporated into a polymer matrix, the products withstanding multiple melting-crystallization cycles of the PCM while maintaining their shape, dimensions, and the thermal energy storage capacity.

A polymer optical fiber is provided which shows improved hydrolytic stability. This fiber comprises a polymeric optical core and cladding layer, surrounded by a polymeric overcladding layer which comprises a miscible blend of one or more hydrolytically stable amorphous polymers. By varying the ratios of the component polymers in the overcladding blend, the glass transition temperature and the coefficient of thermal expansion of the overcladding layer may be tuned to optimize the attenuation and bandwidth of the plastic optical fiber.

The present invention has: a step for heating a resin or a metal in a state in which the resin or metal is sandwiched by a mold provided with a projection that is constituted from an elastic body having a heat resistance temperature higher than the temperature at which the resin or the metal softens, and a support body which is larder than the mold and which is softened by heat at a higher temperature than the resin or the metal, while a force is applied to the mold in the direction toward the resin or the metal.

A polyester film and a method for producing the same are provided. The polyester film includes a heat resistant layer. The heat resistant layer includes a high temperature resistant resin material and a polyester resin material. The high temperature resistant resin material and the polyester resin material are melted and kneaded with each other via a twin screw granulator. The twin-screw granulator has a twin-screw temperature between 250° C. and 320° C., and the twin-screw granulator has a twin-screw rotation speed between 300 rpm and 800 rpm, so that the high temperature resistant resin material is dispersed in the polyester resin material with a particle size of between 50 nm and 200 nm.

Processes and material compositions are disclosed for applying polymer additive manufacturing to producing press dies, such as for sheet metal forming. As disclosed in various embodiments, material compositions comprise a thermoplastic, a first filler having low aspect ratio particles and a second filler having high aspect ratio. In at least one embodiment, composites according to the disclosed teachings have a compressive modulus greater than 3500 MPa and a compressive strength greater than 70 MPa, such that the composites have sufficient mechanical properties for press tooling and are amenable to extrusion-type additive manufacturing processes. In at least one embodiment, the use of the disclosed composites with additive manufacturing enables reduced overall mass of tooling by inclusion of voids inside the die.

A method for manufacturing an aeronautical panel with improved impact and damping behaviors. The method is applicable not only to flat panels but also to curved or highly curved panels, whatever their size and the shape of their core. The manufactured sandwich panels comprise dry fiber mats made from fabric material and/or non-crimp fabric material. In a particular embodiment, the fabric material and/or the non-crimp fabric material comprise dry fibers which are recycled and/or reused fibers.

The present subject matter relates to a method for creating interconnected or continuous layers of material by using a heated powdered composition comprising base particles and an obstruction material and applying a curtailing agent to said powdered composition. The heated powdered composition may be held at a temperature higher than its melting or softening point and the obstruction material prevents particle-particle coalescence until the curtailing agent is applied.

The present disclosure provides pharmaceutical compositions prepared using an additive manufacturing process where the active pharmaceutical ingredient has been rendered into the amorphous form or prepared as an amorphous solid dispersion at a temperature below the melting point of the active pharmaceutical ingredient or the glass transition of the physical mixture or composition of the individual components. The present disclosure also provides methods of preparing these compositions by using properties such as the chamber and surface temperature and the electron laser density.

A semi-crystalline blended polymer useful for additive manufacturing is comprised of an amorphous thermoplastic polymer and a thermoplastic semi-crystalline polymer, each of the polymers being essentially miscible in the other and being blended at a weight ratio of amorphous polymer/semi-crystalline polymer of greater that 1 to about 20. The semi-crystalline blended polymer displays a DSC melt peak enthalpy of at least about 3 joules/g. The semi-crystalline polymer may be made by blending the aforementioned polymers at the weight ratio and subject to heating between the melt temperature of the semi-crystalline polymer and the glass transition temperature of the amorphous polymer. The semi-crystalline blended polymer may revert to essentially an amorphous polymer when additive manufactured by fusing layers of said polymer powders together.