| 摘要 |
<p>PURPOSE: To obtain a synthetic resin antidewing plate in which an interlayer exfoliation scarcely occurs by using for a long period and flow droplets due to condensation are prevented by saponifying the surface of a filmlike laminate formed of a cellulose resin layer having a specific thickness, and superposing a peripheral laminate after the saponification on a synthetic resin board at a heat fusible film side to be thermally integrated. CONSTITUTION: A cellulose resin layer having a thickness of 0.5-5μm is provided on one side surface of a heat fusible film to form a filmlike laminate, the surface of the resin is saponified, the laminate after the saponification is superposed on the synthetic resin board of the heat fusible film side and thermally integrated. Since the obtained synthetic resin antidewing plate is thin at the cellulose resin layer provided on the one side surface of the film, the interlayer exfoliation between the resin layer and the film by using for a long period does not almost occur. This is because the degree of a strain generated at the boundary to the film upon repeating of moisture absorbing and discharging of the cellulose resin layer is not the degree of causing the interlayer exfoliation in the specified range of the thickness.</p> |
