A process for preparing a composite part, the process comprising: recovering unsaturated resin prepreg scrap; combining the recovered unsaturated resin prepreg scrap with a second resinous thermosetting component; and co-molding the prepreg scrap and resinous thermosetting component together under a pressure of 25 to 4000 psi and at a temperature of 100-400 F.

The invention relates to an extrusion blow molded tube, which is filled or can be filled by way of its rear end, and the body, shoulder and neck of which are produced in one piece by extrusion blow molding. The tube has an LLDPE-rich layer with an LLDPE content of 50 to 95% by weight, and the average wall thickness of the tube in the region of the body is 0.3 to 0.85 millimeters.

A blow molded part is provided that includes a first portion consisting of a reinforced resin and a second portion consisting of a non-reinforced resin. The reinforced resin may be fiber-reinforced, and the non-reinforced resin may be a neat resin. In one form, the first portion and the second portion define first and second trim areas, respectively, and the second trim area is directly recyclable. In another form, the second portion comprises a material consisting of a non-reinforced resin and/or a reinforced resin, where the modulus of elasticity of the first portion is higher than the modulus of elasticity of the second portion. Furthermore, a method of forming a blow molded part is provided.

The present disclosure various apparatuses, and systems for 3D printing. The present disclosure provides three-dimensional (3D) printing methods, apparatuses, software and systems for a step and repeat energy irradiation process; controlling material characteristics and/or deformation of the 3D object; reducing deformation in a printed 3D object; and planarizing a material bed.

The present disclosure various apparatuses, and systems for 3D printing. The present disclosure provides three-dimensional (3D) printing methods, apparatuses, software and systems for a step and repeat energy irradiation process; controlling material characteristics and/or deformation of the 3D object; reducing deformation in a printed 3D object; and planarizing a material bed.

A method of manufacturing a vehicle trim component is provided that includes disposing a fiber panel onto a first surface of a mold cavity. The method also includes compressing the fiber panel between the first surface and a second surface of the mold cavity to form the fiber panel into a desired shape. The method further includes injecting resin into the mold cavity to fill at least one void between the first surface and the second surface adjacent to the fiber panel.

A vehicle trim component is disclosed. The vehicle trim component may be prepared by a process comprising heating and placing a fiber panel into a mold cavity, compressing the fiber panel in the mold cavity to form a compression formed component providing a structural substrate having a thickness along an edge and injecting resin into the mold cavity with the structural substrate. A border may be formed along the thickness of the structural substrate by the injected resin; the border may provide dimensional accuracy at the edge of the structural substrate notwithstanding variations in the fiber panel. A resin feature (such as a part, component, connector, reinforcing element, weakened zone, shape, etc.) may be formed in or on the structural substrate by the injected resin (e.g. in a gap or void). The resin feature may comprise a rib to extend across an interface between the structural substrate and the border.

A method for recycling prepreg materials including the steps of: a) providing at least one prepreg material including a first thermosetting polymer resin, partially crosslinked, and a weave including fibers, b) applying a vitrimerization reaction mixture to the at least one prepreg material, c) placing the at least one prepreg material coated with the vitrimerization reaction mixture on a mold of a predefined shape, d) applying a thermocompression to the at least one prepreg material at a temperature (T1) greater than or equal to the glass transition temperature (Tg) of the first resin, so as to activate the reaction between the vitrimerization reaction mixture and the thermosetting polymer leading to the formation of a vitrimer polymer and the transformation of the at least one prepreg material into a vitrimer composite material of the predefined shape.

In order to be able to operate a dust separator with or without a lower closure element (44), the closure element (44) is part of a separate closure unit (40) which is mounted under the dust separator if required. For this purpose, the dust separator, the closure unit (40) and optionally further components, such as a delivery flow generator, are kept available in a kit so as to be able to assemble the treatment unit as required. The dust separator can be operated in batches by means of the closure element (44).

A multi-layer sheet for forming an expanded foam container, the multi-layer sheet including a first layer of an expanded foam material including a first polyolefin-based material including at least one polypropylene-based polymer and a second layer of an unexpected material including a second polyolefin-based material including at least one polypropylene-based polymer that is co-extruded, extrusion coated, or laminated on a first side of the first layer.