| 摘要 |
PURPOSE:To obtain an optical recording medium prepared by directly forming a film to a plastic substrate material of every kind by a coating method and not deteriorated in regeneration, by containing a specified fluorine-containing naphthoquinone derivative in a recording layer. CONSTITUTION:In an optical information recording medium containing a support and the recording layer formed on said support, the recording layer contains a fluorine-containing naphthoquinone derivative represented by formula(I) (wherein R is an alkyl group or alkoxy group containing at least one or more fluorine atom and (n) is an integer of 1-3). The compound represented by the formula (I) may be directly applied to a substrate, that is, the support in a solution form dissolved in a solvent but may be used along with a binder. The thickness of the recording layer is 100Angstrom -5mum generally and pref. In a range of 200-5000Angstrom when no binder is used. As the solvent, ketones, cellosolves, amides, ethers, esters, halogenated hydrocarbons and aromatic hydrocarbons can be used alone or in combination. |
