| 摘要 |
PURPOSE:To obtain a laser recording material which does not deteriorate in a recording layer at agent time and has no occurrence of precipitate and no deformation of a recording layer by forming a layer containing polymer or maleate anhydride copolymer having carboxylic group between a glass substrate and a recording layer. CONSTITUTION:A polymer preferable to prevent a diffusion of metallic ions into a recording layer from glass substrate and a decrease in the sensitivity due to the deterioration in the quality of the layer or a variation in the optical density and the occurrence of precipitate includes a polyacrylic acid, polymethacrylic acid, styrene maleate anhydride copolymer and styrene maleate copolymer. More preferably, styrene maleate anhydride copolymer, and when a recording material is further exposed, it has an effect of preventing the layer from wrinkling. The molecular weight is preferably 5,000-500,000, and particularly 10,000-200,000 is preferable. The thickness of the film is 0.01-20mum and particularly 0.1-3mum. |
