| 摘要 |
PURPOSE:To obtain an optical recording medium which is economically advantageous with practically superior characteristics by forming a recording layer containing a specific compound on a transparent substrate. CONSTITUTION:The preferable method to fix a recording layer containing a compound such as shown by a formula [X1-X4 are a carbon atom or a sulphur atom independently, R1-R32 are a hydrogen atom, a halogen atom, a cyano group, a nitro group, a carboxylic acid group, a sulphonic acid group, a substituted or non-substituted aliphatic hydrocarbon group, a substituted or non-substituted aromatic hydrocarbon group, a substituted or non-substituted aromatic heterocyclic ring group, M is a halogen atom, an oxygen atom, a metallic atom which may have (-OR45)m or (-OSiR46R47R48)n or a hydrogen atom] on a transparent substrate is done by application method. The compound is dispersed or dissolved in an organic solvent and the solution is applied. Recording on a recording medium is made by projecting a semiconductor laser beam to a recording layer. As a result, a recording medium which is chemically and physically stable and highly sensitive in a semiconductor laser oscillation area is obtained. |
