| 摘要 |
PURPOSE:To enhance practicality by compounding a thimine compd. with a copolymer of unsaturated hydrocarbon and unsaturated carboxylic acid or a salt thereof. CONSTITUTION:An optical recording material is constituted by compounding thimine represented by the specific formula or a derivative thereof with a copolymer of unsaturated hydrocarbon such as ethylene and unsaturated carboxylic acid such as acrylic acid or a salt thereof. In the specific formula, R is an aminoalkyl group, a hydroxyalkyl group or an amoniated aminoalkyl group. The copolymer is used as a base material as it is, but a salt thereof, that is, an ionomer obtained by neutralizing the copolymer with a metal ion or amine is pref. used. The copolymer or a salt thereof is dispersed in a solvent such as methanol and a thimine compd. is added to and dispersed in the obtained dispersion to prepare a solution which is, in turn, cast and the formed layer is dried to remove solvent to form a thin film. |
