THERMOPLASTIC RESIN COMPOSITION FOR BLOW MOLDING, AND MOLDED ARTICLE MOLDED FROM THE SAME

To provide a thermoplastic resin composition for blow molding capable of not only improving surface quality of a molded article, but also securing heat resistance and flowability by enhancing efficiency of surface processing conducted after blow molding, i.e. enhancing sanding ease.SOLUTION: There i...

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Bibliographische Detailangaben
Hauptverfasser: KWON KEE HAE, KIM YOUNGHYO, HWANG DONGGEUN, YIM JEASEOK
Format: Patent
Sprache:eng ; jpn
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Zusammenfassung:To provide a thermoplastic resin composition for blow molding capable of not only improving surface quality of a molded article, but also securing heat resistance and flowability by enhancing efficiency of surface processing conducted after blow molding, i.e. enhancing sanding ease.SOLUTION: There is provided a thermoplastic resin composition for blow molding containing 100 pts.mass of a base resin containing (A) a diene-based graft copolymer of 20 to 40 mass%, (B) an aromatic vinyl compound-vinyl cyanide compound copolymer of 10 to 20 mass%, (C) alpha-methylstyrene copolymer of 30 to 50 mass%, and (D) an N-phenylmaleimide of 10 to 20 mass% (total of (A) to (D) is 100 mass%), and 0.1 to 3 pts.mass of (E) an inorganic particle which is at least one kind selected from a group consisting of zinc sulfide, titanium dioxide, and talc.SELECTED DRAWING: Figure 1 【課題】ブロー成形以降に行われる表面加工の効率を向上させて、つまり、サンディング容易性を高めて、成形品の表面品質を改善することができるだけでなく、耐熱性および流動性も確保することができるブロー成形用熱可塑性樹脂組成物を提供する。【解決手段】(A)ジエン系グラフト共重合体 20〜40質量%、(B)芳香族ビニル化合物−シアン化ビニル化合物共重合体 10〜20質量%、(C)アルファ−メチルスチレン共重合体 30〜50質量%、および(D)N−フェニルマレイミド共重合体 10〜20質量%(ただし、(A)〜(D)の合計は100質量%)を含む基礎樹脂 100質量部;ならびに前記基礎樹脂100質量部に対して、(E)硫化亜鉛、二酸化チタン、およびタルクからなる群より選択される少なくとも1種である無機粒子 0.1〜3質量部、を含む、ブロー成形モールディング用熱可塑性樹脂組成物。【選択図】図1