Patent ID: 8466233

Claim:
A polylactic acid-based resin composition comprising a polylactic acid (A), a multilayered polymer (B) and a multilayered polymer (C), wherein a content of each of the multilayered polymer (B) and the multilayered polymer (C) is 0.5 to 8% by mass of the whole resin composition; the multilayered polymer (B) and the multilayered polymer (C) are each constituted of a core layer and a shell layer; in the multilayered polymer (B), the core layer is made from an acrylic rubber (except for containing a silicone component) and the shell layer is made from methyl methacrylate-based polymer obtained by graft polymerizing the acrylic rubber of the core layer, in the presence of the acrylic rubber of the core layer; in the multilayered polymer (C), the core layer is made from a composite rubber containing an acrylic component and the silicone component and the shell layer is made from methyl methacrylate-based polymer obtained by graft polymerizing the composite rubber containing the acrylic component and the silicone component of the core layer, in the presence of the composite rubber containing the acrylic component and the silicone component of the core layer; and the composite rubber containing an acrylic component and a silicone component is a rubber constituted of the component obtained by copolymerizing the acrylic component and the silicone component or a mixture obtained by blending a rubber composed of the acrylic component and a rubber composed of the silicone component.