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US 12,703,171 B1Granted
Direct lamination of a melamine layer to a magnesium oxide core
AssigneeColumbia Insurance Company
InventorsAnthony Drevet, Christopher Karl Andrews
Life of this patent
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Abstract
Embodiments of the present disclosure include a floor panel having a melamine-impregnated layer laminated on a layered magnesium-oxide core. The layered magnesium-oxide core can comprise one or more adhesion-promoting layers including an adhesion-promoting agent, such as cellulosic fibers, polymers, or adhesive.
Claims12
A floor panel comprising:
- a layered core comprising:
- a first layer comprising magnesium oxide and cellulosic fibers;
- a second layer disposed directly below the first layer, the second layer comprising magnesium oxide and being substantially free of cellulosic fibers, wherein a density of the second layer is greater than or equal to a density of the first layer, and
- a first melamine-impregnated layer disposed above the first layer and directly bonded to a top surface of the first layer of the layered core;
- wherein the first layer comprises from 25% by weight to 50% by weight of the cellulosic fibers.
2 more elements
A method for making a floor panel comprising:
- forming a layered core comprising:
- creating a second layer comprising magnesium oxide, the second layer being substantially free from cellulosic fibers;
- applying a first layer directly on top of the second layer, the first layer comprising magnesium oxide and cellulosic fibers;
- wherein a density of the second layer is greater than or equal to a density of the first layer;
- and laminating a melamine-impregnated layer directly to a top surface of the layered core using a hot-press process.
2 more elements
A floor panel comprising:
- a layered core comprising:
- a first layer comprising magnesium oxide and an adhesion-promoting additive comprising cellulosic fibers;
- a second layer disposed directly below the first layer, the second layer comprising magnesium oxide and being substantially free of the adhesion-promoting additive comprising cellulosic fibers, wherein a density of the second layer is greater than or equal to a density of the first layer;
- and
- a first melamine-impregnated layer disposed above the first layer and directly bonded to a top surface of the first layer of the layered core.
2 more elements
Dependencies are inferred from the claim text.