Patent ID: 6059907
Filing Date: 2000-05-09
Classification: B32B,C04B,Y02W

Abstract:
A process for preparing incombustible board for interior decoration and architectural facings comprising:mixing activated clay with a small amount of fine sawdust and/or powder of the heart of kaoliang stalk, a small amount of coloring agent and bittern obtained by water absorption of crude sodium chloride containing calcium sulfate, calcium silicate, magnesium, magnesium chloride or a composition of components identical to said bittern to give a paste phase mixture;supplying said paste phase mixture together with a top glass fiber layer and a bottom glass fiber layer being provided on the upper and the lower sides of said mixture separately on any one of molding plates selected from glass, acryl, polycarbonate, polyvinyl chloride or polypropylene plates;passing the materials of said molding plates, in situ, between mixture-separative sandwich rollers to give a certain thickness of a mixture sheet by pressing;drying said sheet;grinding the surface of said dried sheet with sand paper;coating an epoxy resin layer evenly on the ground surface;coating an adhesive layer, a multiple color design of transfer film layer, an ultraviolet curable adhesive layer and a protection film layer on the epoxy resin layer in turn by adherence; andcutting the resulting products into needed size to give light, hard, bendable, incombustible boards for interior decoration and architectural facings.