| abstract |
(57) [Problem] To provide a sheet excellent in water vapor barrier property, impact resistance, rigidity and heat resistance, and a container formed from the sheet. A (a 1) and rubber-modified styrene resin, (A 2 ) a polystyrene resin, and the ratio (weight ratio) of the component (a 1 ) to the component (a 2 ) is (a 1 ) / (A 2 ) = A styrene-based resin (A) and a cyclic polyolefin-based resin (B) having a ratio of 70/30 to 100/0, The ratio (weight ratio) of the component (A) and the component (B) is (A) / (B) = 80/20 to 50/50, A resin composition is prepared and a sheet is formed with the composition. |