Integrated insulation extrusion and extrusion technology for window and door systems
OwnerGeorge Melkonianinventor
Life of this patent
Estimating the term…
Abstract
Extruded plastic profiles with integrated insulation, the method for extruding such products, and the windows and doors made with such plastic extrusions. The plastic extrusions may additionally include a low heat build-up capstock system comprising an acrylic cap and pigment system that is substantially IR transparent. The extruded plastic profiles with integrated insulation are recyclable using conventional plastic extrusion process and are fully weldable in conventional window and door manufacturing.
Claims11
A method of co-extruding an insulated extrudate with a plurality of integral foamed insulating strands, the method comprising the steps of:
- feeding a first thermoplastic resin suitable for use in a structural fenestration component into a first extruder;
- feeding a second thermoplastic resin suitable for integrated insulation into a second extruder;
- and
- outputting the first and second extruders to an extrusion die and extruding the extrudate from the extrusion die, where the extrusion die forms a structural fenestration extrusion formed of the first thermoplastic resin and wherein the structural fenestration extrusion defines at least one hollow interior portion of a constant profile, and, wherein the extrusion die substantially fills the hollow interior portion of the structural extrusion with an integrated insulation formed of a plurality of strands of foamed second thermoplastic resin that crowd together to define a plurality of air pockets running in a length of the extrudate between the strands while also integrating with the structural extrusion to define an integrated insulating extrudate.
A method of coextruding an insulated extrudate with integral foamed insulating strands, the method comprising the steps of:
- extruding a first resin to define a fenestration structure to be insulated;
- the fenestration structure having a longitudinal direction;
- extruding a second resin as a plurality of foamed strands disposed within the fenestration structure;
- allowing the foamed strands to expand and crowd together within the structure to be insulated to define a plurality of longitudinal air pockets disposed within the fenestration structure and between the foamed strands;
- and
- integrating at least some of the foamed strands to the fenestration structure to form an integral insulated structure.
Dependencies are inferred from the claim text.