| 摘要 |
PURPOSE:To obtain an acrylic resin plate excellent in glare shielding effect by mixing a methyl methacrylate polymer with a fine talc powder and a fine barium sulfate powder each in a specified amount and forming the mixture so as to give surface irregularities at specified intervals. CONSTITUTION:100 pts. methyl methacrylate polymer is mixed with 0.5-7 pts. fine talc powder and 0.5-5 pts. fine barium sulfate powder and/or fine calcium carbonate powder by stirring in, e.g. a Henschel mixer. The mixture is fed to rolls having fine surface irregularities to form a plate provided with surface irregularities at intervals of 40-200mum, thus producing acrylic resin plate. By this technique, an acrylic resin plate through which a light source is not visible and which has a matte side with an excellent glare shielding effect, has high total light transmittance, and is excellent in energy effect can be produced. |
