| 摘要 |
PURPOSE:To provide a photo-crosslinkable compsn. high in sensitivity and capable of direct plate making by using a cobalt (III) complex, a photoreducing agent, a hydrogen donor, and ligands of a specified chelating polymer as essential components. CONSTITUTION:A photo-crosslinkable compsn. high in sensitivity is obtained by using as essential components, a cobalt (III) complex, a photoreducing agent, a hydrogen donor, and ligands of a chelating polymer having repeating units each represented by formula I in which R1 is H, CH3, -OH, -COOH, Cl, -NO2, -N(CH3)2, -N(C2H5)2, or -SO3H; R2 is H, CH3, or -OH; and X is one of formulae A-D. |
