| 摘要 |
PROBLEM TO BE SOLVED: To provide a biaxially oriented styrene resin sheet and a molded article thereof manufactured by drawing a composition containing styrene-methacrylic acid-methyl methacrylate copolymer resin excellent in heat resistance, appearance and mechanical strength and good in blocking resistance of the sheet and the molded article.SOLUTION: There is provided a biaxially oriented styrene resin sheet manufactured by biaxially drawing a styrene resin composition with drawing ratios in a lateral direction and a longitudinal direction each in a range of 1.8 to 3.5 times by using the styrene resin composition which contains (A) a styrene-methacrylic acid-methyl methacrylate copolymer resin made by copolymerizing styrene, methacrylic acid and methyl methacrylate, (B) a shock resistant styrene resin, and an inorganic-based granular material having an average particle diameter of 1 to 20 μm, and has mass ratio of the resin (A) to the resin (B), (A)/(B) in a range of (98 to 99.7)/(2.0 to 0.3) and mass ratio of the inorganic-based granular material in the composition in a range of 50 to 500 ppm. |
