Laminated panel, particularly for furniture construction

Claim 2

IN COMBINATION, A WOOD CORE HAVING THE WOOD IN A PARTICULAR ORIENTATION WITH THE CORE TENDING TO WARP ABOUT AXES PARALLEL TO THE DIRECTION OF ORIENTATION, SAD CORE BEING CAPABLE OF ABSORBING AND RELEASING MOISTURE, A CROSSBANDING SHEET AFFIXED TO EACH SIDE OF SIDE CORE BY A LAYER OF ADHESIVE WITH ANY ORIENTATION THEREOF DISPOSED GENERALLY PERPENDICULAR TO THAT OF THE CORE, A FACING SHEET AFFIXED TO ONE SIDE OF ONE OF SAID CROSS BANDING SHEETS BY A LAYER OF ADHESIVE, AND A BACKING SHEET AFFIXED TO ONE SIDE OF THE OTHER ONE OF SAID CROSSBANDING SHEETS BY A LAYER OF ADHESIVE, EACH OF SAID CROSSBANING SHEETS COMPRISING A SUBSTANTIALLY UNIFORM DISTRIBUTION OR INTERMIN GLED GLASS AND CELLUOSE FIBERS, WITH THE GLASS FIBERS PRESET IN AN AMOUNT OF 5-85 PERCENT, BY WEIGHT, AND THE CELLULOSE FIBERS PRESENT IN AN AMOUNT OF 95-15 PERCENT, BY WEIGHT, A BINER THROUGHOUT EACH OF SAID CROSSBANDING SHEETS AND HOLDING THE FIBERS THEREOF TOGTHER TO PROVIDE INTERNAL SHEAR STRENGTH FOR SAID CROSSBANDING SHEETS, AND ADDITIONAL BINDER ON EACH OF THE SURFACES OF EACH OF SAID CROSSBANDING SHEETS, THE BINDER MAINTAINING THE ADJACENT ADHESIVE LAYERS ON SAID CROSSBANDING SHEETS SEPARATE TO PROVIDE TWO SEPARATE GLUE LINESFOR EACH OF SAID CROSSBONDING SHEERS, SAID BINDER BEING ORIGINALLY A THERMOSETTING POLYMER WITH A PH BELOW 7.0 PRIOR TO BEING THERMALLY SET.

Claim 3

The combination according to claim 1 characterized by the glass fibers being present in an amount of 50-75%, by weight, and the cellulose fibers being present in an amount of 50-25 percent, by weight, in said crossbanding sheets.

Claim 4

The combination according to claim 1 characterized by said binder being originally an aqueous emulsion of a vinyl acetate copolymer.

Claim 5

The combination according to claim 1 characterized by each of said crossbanding sheets having a thickness of 15-60 mils, and said binder being present in an amount of about 20-60 percent of the weight of the sheets.

Claim 6

A laminated furniture panel comprising a wood core, said core having two major generally parallel surfaces, a crossbanding sheet on each side of said core and adhered thereto by a layer of adhesive, each of said crossbanding sheets being of uniformly distributed, intermingled glass and cellulose fibers, said glass fibers being present in an amount of 5-85 percent, by weight, said glass fibers having diameters in the range of 0.00020 to 0.00060 inch and lengths from 1/2 to 1 1/2 inches, and said cellulose fibers being present in an amount of 95-15 percent, by weight, a binder extending throughout each of said crossbanding sheets, said binder being originally in aqueous emulsion of a vinyl acetate copolymer with a pH below 7.0 prior to being thermally set, said binder being present in an amount of about 20-60 percent of the weight of the crossbanding sheets, the binder in each of the crossbanding sheets being more concentrated at the surface portions thereof than at the center portions, a wood veneer affixed to the outer surface of one of said crossBanding sheets by a layer of adhesive, a backing sheet affixed to the outer surface of the other one of said crossbanding sheets by a layer of adhesive, said backing sheet being thicker than said veneer, the orientation of said veneer and said backing sheet being parallel to one another, the fibers of said crossbanding sheets being oriented in a direction perpendicular to the orientation of said veneer and said backing sheet, said crossbanding sheets having a thickness of 15 to 60 mils, and said core having a thickness of eleven-sixteenth to three-fourth inch.

Claim 7

A laminated furniture panel comprising a wood core, said core having two major generally parallel surfaces, a crossbanding sheet on each side of said core and adhered thereto by a layer of adhesive, each of said crossbanding sheets being of uniformly distributed, intermingled glass and cellulose fibers, said glass fibers being present in an amount of 5-85 percent, by weight, said glass fibers having diameters in the range of 0.00020 to 0.00060 inch and lengths from 1/2 to 1 1/2 inches, and said cellulose fibers being present in an amount of 95-15 percent, by weight, a binder extending throughout each of said crossbanding sheets, said binder being originally in aqueous emulsion of a vinyl acetate copolymer with a pH below 7.0 prior to being thermally set, said binder being present in an amount of about 20-60 percent of the weight of the crossbanding sheets, the binder in each of the crossbanding sheets being more concentrated at the surface portions thereof than at the center portions, a wood veneer affixed to the outer surface of one of said crossBanding sheets by a layer of adhesive, a backing sheet affixed to the outer surface of the other one of said crossbanding sheets by a layer of adhesive, said backing sheet being thicker than said veneer, the orientation of said veneer and said backing sheet being parallel to one another, the fibers of said crossbanding sheets being oriented in a direction perpendicular to the orientation of said veneer and said backing sheet, said crossbanding sheets having a thickness of 15 to 60 mils, and said core having a thickness of eleven-sixteenth to three-fourth inch.