| 摘要 |
PROBLEM TO BE SOLVED: To obtain a process for producing an optical information recording medium capable of easily producing the optical information recording medium having high-temp. reliability, flat recording surfaces and a high grade. SOLUTION: Substrates 1, 1 having recording layers 1a are respectively arranged via the film-like hot melt type adhesives 3 on both surfaces of a metallic plate 2. The metallic plate 2 is heated by irradiation with high-frequency electromagnetic waves under pressurization and the film-like hot melt type adhesives 3 are melted and softened by the heat. Further, the heating of the metallic plate 2 is stopped in the pressurized state to cure the adhesives, by which the respective substrates 1, 1 and the metallic plate 2 are adhered. As a result, the use of the hot melt type adhesives having the softening temp. much higher than an ordinary temp. region is made possible and the optical information recording medium which obviates the unstabilization of the adhesion state of the adherends to each other and has the excellent high-temp. reliability is embodied. |
