| 摘要 |
PURPOSE: To obtain an excellent light resistance by making a light absorbing layer to be formed on a substrate have, as a main component, a coordinate bond body of a phthalocyanine compound or a naphthalocyanine compound and a conjugate polymer having a specified nitrogen group whose conformation changes with heat. CONSTITUTION: In an optical record medium having a light absorbing layer on a substrate, the light absorbing layer contains, as a main component, a coordinate bond body of a phthalocyanine compound or a naphthalocyanine compound and a conjugate polymer having a group to be expressed by a formula I whose conformation changes with heat. In the phthalocyanine compound or the naphthalocyanine compound, the d-electronic number of its central metal ion is 0-7 or 10. The conjugate compound is of a polymer which contains a component unit to be expressed by a formula II. In the formula, R<1> represents 3-20C straight chain or branched alkyl group, X represents -O-, -S-, -Se-, -NR<2> -, R<2> represents -H or 1-20C straight chain or branched alkyl group, and aryl group. |
