Thermally stable multilayer polymer extrusion
AssigneeEngineered Profiles LLC
InventorsVickram Dhanapal, Brian Davis, Matthew Thomas Fenneman, Michael Kenneth Davis
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Abstract
A combination of materials that may be formed through an extrusion process. The resulting product has at least two layers. By coextruding multiple layers of at least two types of materials together, the final product may have improved mechanical, thermal, electrical, and other properties as compared to the original materials used. Additionally, by using an additive, filler, or doping material in at least one layer of the final product during the extrusion process, the mechanical, thermal, electrical, or other properties of the final product may be further improved.
Claims15
A multilayer structure consisting essentially of:
- a first layer consisting essentially of polyvinyl chloride;
- and
- a second layer formed on at least one side of the first layer, wherein the second layer is a composite material consisting essentially of a homogenous blend of polycarbonate and glass filler;
- wherein said multilayer structure has improved thermal stability as compared to a similar structure except without said second layer, wherein said improved thermal stability is adapted to result in a higher heat deflection temperature, a lower coefficient of linear thermal expansion, and decreased shrinkage.
Dependencies are inferred from the claim text.