Composite material and process for manufacturing same
AssigneeGestion Du Pont Couvert Inc.
InventorDenis Girard
Life of this patent
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Abstract
There is provided composite materials that include a plastic polymer and gypsum for use as a building material and methods of fabricating the building material. The composite material can include a foaming agent configured to reduce the density of the composite material. The composite material can be extruded or injection molded into a building material form that can include an elongated, rectangular form. The building material can be used as a wood replacement for wooden building materials. The plastic polymer can include linear low-density polyethylene (LLDPE), low-density polyethylene (LDPE), high-density polyethylene (HDPE), and/or acrylonitrile butadiene styrene (ABS). The composite material can include a filler, such as wood flour or saw dust.
Claims20
A composite material, the composite material comprising:
- at least 40% w/w of a plastic polymer;
- and
- up to 45% w/w gypsum.
A method of fabricating a product, the method comprising:
- providing a plastic polymer and gypsum;
- compounding the plastic polymer and the gypsum to produce a composite material comprising at least 40% w/w plastic polymer and up to 45% w/w gypsum;
- and
- extruding or injection molding the composite material into a form to produce the product.
A building material comprising a composite material extruded or injection molded into a form, the composite material comprising at least 40% w/w of a plastic polymer and up to 45% w/w gypsum.
Dependencies are inferred from the claim text.