INJECTION MOLDED ARTICLE AND PRODUCTION METHOD THEREOF

To provide an injection molded article having both rigidity, toughness and aesthetic appearance.SOLUTION: A mixture with a first kneaded material 3a obtained by melt-kneading a first thermoplastic resin 1a and a fibrous filler 2a, and a second kneaded material 3b obtained by melt-kneading a second thermoplastic resin 1b and a thermoplastic elastomer 2b, is injection-molded as a material to produce an injection molded article 5. In the first kneaded material 3a and the second kneaded material 3b, a first shear viscosity of the first kneaded material 3a at a shear rate of 1×10/second is larger than a second shear viscosity of the second kneaded material 3b at the shear rate of 1×10/second.SELECTED DRAWING: Figure 1 【課題】剛性、靱性および美観のいずれもを有する射出成形品を提供する。【解決手段】第１の熱可塑性樹脂１ａおよび繊維状フィラー２ａを溶融混練してなる第１の混練物３ａと、第２の熱可塑性樹脂１ｂおよび熱可塑性エラストマー２ｂを溶融混練してなる第２の混練物３ｂとを混合し、得られた混合物を材料として射出成形して、射出成形品５の製造する。第１の混練物３ａおよび第２の混練物３ｂには、せん断速度１×１０３／秒での第１の混練物３ａの第１せん断粘度が上記せん断速度での第２の混練物３ｂの第２せん断粘度よりも大きな混練物をそれぞれ用いる。【選択図】図１