The invention relates to a method in which a polyester melt containing one or more polyesters is produced, the polyester melt being foamed by a blowing agent and a foamed granulate is produced from the foamed polyester melt. The intrinsic viscosity (IV) of the polyester melt is reduced by the blowing agent about at least 0.05 dl/g, measured according to ASTM D4603, and the IV of the foamed granulate is then increased by means of a solid phase polycondensation (SSP).

A coextrusion profile for a window and/or door part, or a secondary profile to be attached to a window and/or door part, may include a hollow profile forming an outer side of the coextrusion profile and a hollow profile wall made of plastic and a foam core made of plastic foamed within the hollow profile. The window and/or door pan may include a window and/or door frame part, a window and/or door sash part, such as a sliding window or a sliding door.

The invention relates to a method for manufacturing a composite aircraft window frame; the method comprises the steps of: a) positioning in a mold a preform made of pre-impregnated material including dispersed fibers, with a predefined orientation, in a thermosetting resin matrix; b) closing the mold so as to define a gap between at least one surface of said preform and a portion of said mold; c) injecting thermosetting resin into the closed mold through an inlet opening of the mold itself, so as to fill the gap and completely lap said surface of the preform; and d) applying a uniform hydrostatic pressure on the surface by the injection of the resin.

The machine (1) for welding profiled elements comprises: a base frame (2); two retaining members (3, 4) of respective profiled elements (5) made at least partly of plastic and an area to be welded (6), the retaining members (3, 4) being mounted on the base frame (2) and defining a first retaining axis (A) and a second retaining axis (B) forming an angle of welding (7), and along which the profiled elements (5) can be fastened; removal means (8) of material from the profiled elements (5) to make a machining on the area to be welded (6) of the profiled elements (5); heat sealing means (9) mounted on the base frame (2) and adapted to weld the areas to be welded (6) of the profiled elements (5); adjusting means (10) of the angle of welding (7) adapted to move at least one of the retaining members (3, 4) to incline at least one of the first retaining axis (A) and the second retaining axis (B) to change the angle of welding (7); sliding means (11) of the retaining members (3, 4), mounted on the base frame (2) and adapted to move the retaining members (3, 4) in mutual approach or moving away without changing the angle of welding (7).

A method of manufacturing a product including at least two carbon parts including the step of: manufacturing a first carbon part, manufacturing at least a second carbon part, providing on a surface of one of the first carbon part or second carbon part a plurality of protrusions including a carbon resin, joining together the first carbon part and the second carbon part in such a way that the plurality of protrusions is interposed between the first carbon part and second carbon part for providing physical and electrical connection is provided.

A manufacturing method of a resin frame includes preparing a plurality of frame members, installing a pair of the frame members in the corner portion in a pair of molds, melting end surfaces of the pair of the frame members as welding margins, and welding the welding margins. The molds respectively includes a reference surface holding the frame members and a blade portion protruding to an inner side with respect to the reference surface. In the welding, in the corner portion, the pair of the frame members are pressed by the blade portions, so that the welding margin protrudes from between the blade portions, the outer peripheral surfaces of the pair of the frame members are bent inward, and the corner portion is made concave with respect to the portions adjacent to the corner portion.

At least two profiled parts (1) are fixed to profile supports (2) that can be moved relative to each other. The profiled parts (1) are each partially melted at an end joining face (10) with a heating element (5) in a melting step and, after the heating element (5) has been removed, the partially melted joining faces (10) of the profiled parts are pressed against each other in a joining step, until the molten materials brought into contact with each other there cool down and solidify, forming a welded connection. To avoid or reduce occurrence or development of a welding bead, in a separating step that is carried out before the joining step, a mating tool (6, 29) is guided through the melt along the separating edge (9) of the limiting element (3), in order to separate the excess melt (7) that has escaped over the separating edge (9).

The invention relates to a process (100) for manufacturing an object (1) made of thermoplastic polymer composite from at least two parts (10) made of thermoplastic polymer composite, said thermoplastic polymer composite comprising a fibrous reinforcement and a thermoplastic polymer matrix, said process comprising the steps of: arranging (120) the two parts (10) made of thermoplastic polymer composite adjacently or overlapping at an assembly interface zone (11), and heating (130) to melt the thermoplastic polymer matrix at said assembly interface zone (11), so as to form an object (1) made of thermoplastic polymer composite comprising a welded interface (12).

A weatherable, low heat build-up capstock system comprising an acrylic cap, a pigment system that is IR transparent to a greater degree than existing pigment systems, an IR reflective substrate, and an extrusion system for same.

Embodiments herein include extruded articles, building components and methods of making the same. In an embodiment, an extruded article is included. The extruded article can include a body member including a first portion comprising a first composition, the first composition comprising a polymer resin. The extruded body member can also include a second portion comprising a second composition different than the first composition. The second composition can include a polymer resin, fibers, and at least one component selected from the group consisting of at least 1% by weight particles and at least 5 phr impact modifier. Other embodiments are also included herein.