ULTRAVIOLET RAY-CURABLE RESIN COMPOSITION AND COMPOSITE SHEET USING THIS

摘要

PROBLEM TO BE SOLVED: To provide an ultraviolet ray-curable resin composition having the excellent cohesiveness of an ultraviolet ray-curable resin layer and a substrate layer and the excellent weather resistance, without the risk of exfoliation of the ultraviolet ray-curable resin layer from the substrate layer over a long term. SOLUTION: The ultraviolet ray-curable resin composition includes an ultraviolet ray-curable resin, an ultraviolet ray-curable catalyst and an ultraviolet absorber. A wavelength showing one maximal value of the light absorption curve of the ultraviolet ray-curable catalyst is present on the longer wavelength side with respect to a maximal value of a differentiation value in a 340 nm-400 nm wavelength range in a light transmission curve of the ultraviolet absorber. COPYRIGHT: (C)2009,JPO&INPIT