| 摘要 |
PROBLEM TO BE SOLVED: To suppress thickness deviation of a molding obtained through thermoforming without great influence by cooling conditions at the time of extruded sheet manufacturing. SOLUTION: On both sides of a resin layer, where 0-50 pts.wt. rubber-like polymer is uniformly dispersed with respect to 100 pts.wt. methyl methacrylate resin, a resin layer, where 1-50 pts.wt. methyl methacrylate insoluble resin particles having a weight-average particle diameter of 0.1-100μm is uniformly dispersed with respect to 100 pts.wt. base resin, which is composed of 100 pts.wt. methyl methacrylate resin and 0-70 pts.wt. rubber-like polymer, is integrally laminated by multi-layer extrusion molding. |
