POLYSTYRENE-BASED RESIN COMPOSITION, BIAXIALLY STRETCHED STYRENIC RESIN SHEET AND MOLDED PRODUCT

摘要

PROBLEM TO BE SOLVED: To provide; a polystyrene-based resin composition which improves surface impact strength and heat resistance without impairing transparency and thus can be thinned and has good secondary moldability; a biaxially stretched styrenic sheet obtained using the same; and a molded product thereof.SOLUTION: There are provided: a polystyrene-based resin composition which comprises a polystyrene-based resin (A) obtained by copolymerizing monomers consisting essentially of a styrene-based monomer (a1) and methacrylic acid (a2) and inorganic fine particles (B) having an average particle diameter of 0.1 to 10 μm, wherein the blending ratio in a composition of the inorganic fine particles (B) is in the range of 0.01 to 1.0 mass%; a biaxially stretched styrenic resin sheet obtained using the same; and a molded product thereof.SELECTED DRAWING: Figure 1