Laminated panel
A method for the production of a laminate is provided, comprising the steps of: 1) providing a stack of layers including a decorative layer, a core layer, and optionally an overlayer; 2) impregnating one or both of the decorative layer and overlayer with a resin formulation that includes nanoclay particles disposed within a thermoset resin, wherein the concentration of the nanoclay particles within the thermoset resin is great enough to form a physical barrier within the resin and low enough to avoid a hazy appearance; and 3) subjecting the stack of layers to sufficient heat and pressure to cause the layers to bond to one another. According to an aspect of the present invention, a laminate is provided producible by the above-described method.
1. A laminated panel, comprising:
a core layer having a first side and a second side, which second side is opposite the first side;
a decorative layer bonded to the first side of the core layer; and
an overcoat layer disposed on a side of the decorative layer opposite the core layer, said overcoat layer containing nanoclay particles disposed in a layer of cured thermoset resin, which particles have a mean particle size of about 50 nm or less,
wherein thermoset resin within the overcoat layer, decorative layer and core layer is cured and bonds the layers together to form the panel.
2. The laminated panel of claim 1 , wherein the nanoclay particles comprise a smectite clay mineral.
3. The laminated panel of claim 2 , wherein the smectite clay mineral includes montmorillonite.
4. The laminated panel of claim 1 , wherein the nanoclay particles comprise synthetic layered silicate particles.
5. The laminated panel of claim 4 , wherein the synthetic layered silicate particles are in the range of about 0.01% to 2.00% of the weight of the overcoat layer.
6. The laminated panel of claim 4 , wherein the core layer comprises a plurality of sheets of kraft paper.
7. The laminated panel of claim 4 , further comprising a backer layer bonded to the second side of the core layer.
8. The laminated panel of claim 4 , wherein the overcoat layer includes one or more overlay sheets comprising a cellulose material.
9. The laminated panel of claim 4 , wherein substantially all of the synthetic layered silicate particles are wafer-shaped, with an edge extending between a pair of faces.
10. The laminated panel of claim 9 , wherein the edge of each particle has a first electrical charge, and the faces have a second electrical charge which is opposite from the first electrical charge.
11. A laminated panel, comprising:
a core layer;
a decorative layer bonded to the first side of the core layer, and impregnated with a thermoset resin formulation containing a concentration of nanoclay particles sufficient to form a physical barrier within the resin, which barrier is resistant to chemical degradation,
wherein thermoset resin within the decorative layer and core layer is cured and bonds the layers together to form the panel.
12. The laminated panel of claim 11 , wherein the nanoclay particles include synthetic layered silicate particles.
13. The laminated panel of claim 12 , wherein the synthetic layered silicate particles are in the range of about 0.01% to 4.00% of the weight of the resin impregnating the decorative layer.
14. A laminated panel, comprising:
a core layer having a first side and a second side, which second side is opposite the first side;
a decorative layer bonded to the first side of the core layer; and
an overcoat layer disposed on a side of the decorative layer opposite the core layer, said overcoat layer containing a chemical resistance barrier disposed in a layer of cured thermoset resin, which barrier is formed from synthetic layered silicate particles at least some of which are electrically attracted to one another.