AS-BASED RESIN COMPOSITION, AND MOLDING
To provide an AS-based resin composition which has a desired bio-based degree and does not impair excellent dynamic characteristics that an AS-based resin originally has, and a molding.SOLUTION: An AS-based resin composition contains an AS-based resin (a), bio-based polyethylene (b) and a hydrogenat...
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Zusammenfassung: | To provide an AS-based resin composition which has a desired bio-based degree and does not impair excellent dynamic characteristics that an AS-based resin originally has, and a molding.SOLUTION: An AS-based resin composition contains an AS-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 AS-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、AS系樹脂が元来有している優れた力学特性を損なわないAS系樹脂系組成物及び成形体を得る。【解決手段】AS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AS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AS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、AS系樹脂組成物。【選択図】なし |
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