| 摘要 |
PROBLEM TO BE SOLVED: To provide a rubber-modified styrenic resin composition excellent in mechanical properties including flexural modulus and impact strength, also excellent in oil resistance and chemical resistance, thus favorably usable mainly as a food container or packaging material subject to direct contact with oil. SOLUTION: The rubber-modified styrenic resin composition is produced by the graft polymerization of a styrenic monomer in the presence of polybutadiene. In this composition, the volume-medium size of the rubbery dispersed particles is 4-10μm. This composition is 22-35 mass% in gel fraction, 1.00-2.00 in graft rate, and 12-20 in swelling degree. COPYRIGHT: (C)2010,JPO&INPIT
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