ABS-BASED RESIN COMPOSITION, AND MOLDING

To provide an ABS-based resin composition which has a desired bio-based degree and does not impair excellent dynamic characteristics inherent to an ABS-based resin, and a molding.SOLUTION: An ABS-based resin composition contains an ABS-based resin (a), bio-based polyethylene (b), and a hydrogenated...

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Sprache:eng ; jpn
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Zusammenfassung:To provide an ABS-based resin composition which has a desired bio-based degree and does not impair excellent dynamic characteristics inherent to an ABS-based resin, and a molding.SOLUTION: An ABS-based resin composition contains an ABS-based resin (a), bio-based polyethylene (b), and a hydrogenated block copolymer (c), wherein the hydrogenated block copolymer (c) has a polymer block S mainly containing a vinyl aromatic monomer unit and a polymer block B mainly containing a conjugated diene monomer unit, 50 mol% or more of a conjugated diene part constituting the hydrogenated block copolymer (c) is hydrogenated, a mass ratio (a)/(b) of the ABS-based resin (a) to the bio-based polyethylene (b) is 99/1 to 50/50, and a mass ratio (b)/(c) of the bio-based polyethylene (b) to the hydrogenated block copolymer (c) is 90/10 to 50/50.SELECTED DRAWING: None 【課題】所望のバイオベース度を有し、かつ、ABS系樹脂が元来有している優れた力学特性を損なわないABS系樹脂系組成物及び成形体を得る。【解決手段】ABS系樹脂(a)と、バイオベースポリエチレン(b)と、水添ブロック共重合体(c)とを含有するABS系樹脂組成物であって、前記水添ブロック共重合体(c)は、ビニル芳香族単量体単位を主体とする重合体ブロックSと、共役ジエン単量体単位を主体とする重合体ブロックBを有し、前記水添ブロック共重合体(c)を構成する共役ジエン部の50mol%以上が水素添加されており、前記ABS系樹脂(a)と、前記バイオベースポリエチレン(b)との質量比が、(a)/(b)=99/1~50/50であり、前記バイオベースポリエチレン(b)と、水添ブロック共重合体(c)の質量比が、(b)/(c)=90/10~50/50である、ABS系樹脂組成物。【選択図】なし