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US 2020/0370308 A1Published application
Cellulose based composite planks
AssigneeColumbia Insurance Company
InventorsLawrence A. Strickland, Michael J. Trapp, Donald Edward Hunt, JR.
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Abstract
Described herein are composite planks having a core layer and decorative layer. The composite planks contain layers are adhered to each other in absence of an adhesive material. Also described herein are methods for manufacturing composite planks. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
Claims24
A composite plank, comprising:
- a core layer having a top surface and an opposed bottom surface and a plurality of side edges extending between the opposed top and bottom surfaces, wherein the composite core layer is comprised of a filled polymeric composition comprising a thermoplastic cellulose ester component and a filler component;
- and
- a decorative layer comprised of a cellulose based material and having a top surface and an opposed bottom surface, wherein the decorative layer overlies the composite core layer such that the top surface of the core layer contacts the bottom surface of the decorative layer.
A method for making a composite plank, comprising:
- a. forming a core layer from a composition comprising a thermoplastic cellulose ester component and a filler component;
- wherein the formed core layer has a top surface and an opposed bottom surface and a plurality of side edges extending between the opposed top and bottom surfaces, and
- b. applying a decorative layer comprised of a cellulose based material to the top surface of the core layer.
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Dependencies are inferred from the claim text.