ABRASION-RESISTANT RESIN PLATE AND DISPLAY WINDOW PROTECTING PLATE OF PORTABLE INFORMATION TERMINAL USING THE SAME

PROBLEM TO BE SOLVED: To provide an abrasion-resistant resin plate useful as the display window protecting plate of a portable information terminal which has a cured coat excellent in environment resistance and high in abrasion resistance. SOLUTION: On the surface of a layer made of a copolymer (A) which is produced by polymerizing a monomer mixture containing 96-99.5 wt.% of methyl methacrylate and 0.5-4 wt.% of another monomer and has a reduced viscosity at 25°C in chloroform of 0.75 dL/g or below, a layer made of a copolymer (B) which is produced by polymerizing a monomer mixture containing 85-95 wt.% of methyl methacrylate and 5-15 wt.% of another monomer and has a reduced viscosity at 25°C in chloroform of at least 0.75 dL/g is laminated. The cured coat is formed on the surface of the layer made of the copolymer (B) by using a curable coating. COPYRIGHT: (C)2009,JPO&INPIT