Optical recording medium and process for production thereof

摘要

An optical recording medium is formed to include a resinous substrate, a laminate film including an inorganic dielectric layer and a recording layer, and a resinous protective film, respectively disposed on the substrate. The laminate film is formed to have a compression stress of 15 - 55 kg/mm<2> so as to be in a dense film free from cracking or peeling. The resinous protective layer is formed to have a tensile stress of 2.5 - 5.5 kg/mm<2> so as to compensate the compression stress in the laminate film, thus preventing warp and skew of the optical recording medium. The resinous protective film may preferably be formed from a photocurable composition comprising an increased amount of a polyacrylate compound providing a dense film and a urethane acrylate compound providing a flexibility.