Translucent decorative board

Abstract

A translucent decorative board for use, e.g., as a window pane, light shade, partition or door pane is disclosed. The decorative board is comprised of a translucent substrate board and translucent cover sheets bonded to the surfaces of the substrate board. The substrate board is generally thermoplastic and the decorative cover sheets are thermosetting. The thermosetting sheet may comprise a substrate paper sheet and a thermosetting resin impregnated in the sheet.

1 . A translucent decorative board comprising: 
 a thermoplastic substrate board; and    a thermosetting resin sheet provided on a surface of the thermoplastic substrate board;    wherein the thermosetting resin sheet comprises a transparent paper sheet containing 1% or less ash, by weight, which is impregnated and hardened with a thermosetting resin.    
     
     
         2 . The translucent decorative board of  claim 1 , wherein the thermoplastic substrate board comprises at least one resin selected from the resin group consisting of vinyl chloride, acrylic, polycarbonate, polyethylene phthalate and olefin resins.  
     
     
         3 . The translucent decorative board of  claim 1 , wherein the thermosetting resin comprises at least one resin selected from the resin group consisting of melamine, diallylphthalate, unsaturated polyester and polyurethane resins.  
     
     
         4 . The translucent decorative board of  claim 1 , wherein the thermosetting resin sheet comprises a woven fabric or non-woven fabric of an organic fiber, which is impregnated and hardened with a thermosetting resin.  
     
     
         5 . The translucent decorative board of  claim 4 , wherein the thermoplastic substrate board comprises at least one resin selected from the resin group consisting of vinyl chloride, acrylic, polycarbonate, polyethylene phthalate and olefin resins.  
     
     
         6 . The translucent decorative board of  claim 4 , wherein the thermosetting resin comprises at least one resin selected from the resin group consisting of melamine, diallylphthalate, unsaturated polyester and polyurethane resins.  
     
     
         7 . A translucent decorative board comprising: 
 a thermoplastic substrate board; and    a thermosetting resin sheet provided on a surface of the thermoplastic substrate board;    wherein the thermosetting resin sheet comprises a woven or non-woven fabric of an organic fiber and a transparent paper sheet containing 1% or less ash, by weight, which is impregnated and hardened with a thermosetting resin.    
     
     
         8 . The translucent decorative board of  claim 7 , wherein the thermoplastic substrate board comprises at least one resin selected from the resin group consisting of vinyl chloride, acrylic, polycarbonate, polyethylene phthalate and olefin resins.  
     
     
         9 . The translucent decorative board of  claim 7 , wherein the thermosetting resin comprises at least one resin selected from the resin group consisting of melamine, diallylphthalate, unsaturated polyester and polyurethane resins.  
     
     
         10 . The translucent decorative board of  claim 7 , wherein the thermosetting resin sheet comprises a woven fabric or non-woven fabric of an organic fiber, which is impregnated and hardened with a thermosetting resin.  
     
     
         11 . The translucent decorative board of  claim 10 , wherein the thermoplastic substrate board comprises at least one resin selected from the resin group consisting of vinyl chloride, acrylic, polycarbonate, polyethylene phthalate and olefin resins.  
     
     
         12 . The translucent decorative board of  claim 10 , wherein the thermosetting resin comprises at least one resin selected from the resin group consisting of melamine, diallylphthalate, unsaturated polyester and polyurethane resins.