发明名称 OPTICAL RECORDING MEDIUM
摘要 PURPOSE:To enhance the stability under a high temp. environment condition without lowering optical characteristics by providing a recording layer containing a specific polymethine type compound on a substrate. CONSTITUTION:An optical recording medium is formed by providing a recording layer 2 containing a polymethine type compound represented by formula (I)(wherein R1-R9 are a hydrogen atom, a halogen atom or a substituent being a monovalent org. residue and at least one of R1-R4 is an aryl substituted at three places of 1-, 4- and 6-positions, m is 0 or 1, n is 0, 1 or 2 and X<-> is an anion) on a substrate 1. As the substrate 1, plastic such as polycarbonate, polyester, an acrylic resin, a polyolefin resin, a phenol resin, an epoxy resin, polyamide or polyimide, glass or metals can be used. The recording layer 2 is formed on the substrate by various methods such as a coating method, a vapor deposition method and the like and, in the case using the coating method, the recording layer is formed by applying a solution prepared by dissolving or dispersing the polymethine type compound in an org. solvent to the substrate 1.
申请公布号 JPH03246092(A) 申请公布日期 1991.11.01
申请号 JP19900042612 申请日期 1990.02.26
申请人 CANON INC 发明人 MIHARA CHIEKO;SANTO TAKESHI
分类号 B41M5/26;G11B7/24;G11B7/244 主分类号 B41M5/26
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