High pressure laminate structure
AssigneeMasco Corporation
InventorJohn M. Guyette
Life of this patent
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Abstract
This invention is directed to a high pressure process for preparing a laminate structure comprised of a fiber cementboard core having laminated to at least one surface thereof at least one intermediate resin impregnated paper sheet or lamina and a decorative resin impregnated paper sheet or lamina. The process comprises forming an assembly comprised of a fiber cementboard core having superimposed on at least one surface thereof at least one intermediate resin impregnated paper sheet and a decorative resin impregnated paper sheet, and subjecting said assembly to a temperature of at least about 100.degree. C. and a pressure of at least about 500 psi for a time effective to laminate said assembly.
Claims31
A laminate structure prepared under high temperatures and pressures effective to consolidate said laminate structure comprising:
- a core comprised of fiber cementboard having a top and bottom surface;
- laminated to at least one of said surfaces of said core at least one intermediate lamina of thermosettable resin impregnated paper sheet;
- and
- laminated to the exposed surface of said intermediate paper sheet a thermosettable resin impregnated overlay sheet.
A laminate article comprising a core comprised of fiber cementboard having a top and bottom surface, at least one intermediate lamina comprised of thermosettable resin impregnated sheet laminated to at least one of said surfaces of said core, and a thermosettable resin impregnated overlay sheet laminated to the exposed surface of said intermediate sheet, said article being prepared by a method comprising forming an assembly comprised of said core having superimposed on at least one surface thereof at least said one intermediate lamina, and an overlay sheet on the exposed surface of said intermediate sheet, and subjecting said assembly to high temperatures and pressures for a time effective to laminate said assembly.
Dependencies are inferred from the claim text.