| 摘要 |
PURPOSE:To obtain a phthalocyanine dye type CD-R recording film material conforming to an orange book standard, satisfying practical aptitude such as tracking aptitude and excellent in durability by introducing a fluorine substituted alkoxy group and a nitro group into the respective benzene rings of a phthalocyanine skeleton represented by a specific formula. CONSTITUTION:A flouorine substituted alkoxy group and a nitro group are introduced into each of four benzene rings of a phthalocyanine skeleton represented by formula (wherein M is a hydrogen atom or a metal atom which may be substituted with an oxygen atom, a hydrogen atom or a halogen atom. The fluorine substituted alkoxy group is introduced into four benzene rings of the phthalocyanine skeleton represented by the formula at one of substitution positions of 1 or 4, 5 or 8, 9 or 12 and 13 or 16 and the nitro group is introduced thereinto at the other one of the substitution positions of them. By this constitution, the solubility of a phthalocyanine compd. to an org. solvent is enhanced and the interfacial energy of a recording film and a support becomes large and a well-proportioned pit becomes easy to form at the time of recording. |
