| 摘要 |
PROBLEM TO BE SOLVED: To obtain a rubber-modified styrenic resin composition excellent in transparency, impact resistance, rigidity, surface hardness and molding processability, and to provide an injection-molded article. SOLUTION: The rubber-modified styrenic resin composition comprises 60-90 mass% of a continuous phase comprising a styrene/(meth)acrylate-based polymer and 40-10 mass% of a dispersed phase comprising a rubbery elastomer and, graft-copolymerized thereto, a styrene/(meth)acrylate-based polymer, the continuous phase having a weight-average mol.wt. (Mw) and constituent monomer unit contents satisfying a specific numerical formula and the dispersed phase having a volume-average particle size of 0.3-0.6μm and a toluene swell ratio of 3-8 times. The resin composition is subjected to injection molding to give a molded article.
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