| abstract |
(assignment) When used for casings such as smartphones, there is provided a coating film for casings capable of satisfying both steel wool resistance and bending resistance, and a photocurable coating resin composition providing the same. (Solution) As a coating film formed on a casing made of polymethyl methacrylate and/or polycarbonate, With respect to the surface of the coating film, after 300 reciprocating of #0000 steel wool with a load of 1.5 kg/cm 2, there is substantially no occurrence of scratches, and When a film thickness of 10 µm is formed on the casing, the coating film is pressed to a cylinder having a diameter of 30 mm with the outer side of the casing, and wound so that the bend angle is 180 degrees, a coating film for a casing that is not substantially deformed or cracked, and it It is a photocurable coating resin composition for obtaining. |