THERMOPLASTIC RESIN COMPOSITION WITH GOOD MECHANICAL PROPERTIES, WEATHERABILITY AND COLORABILITY

摘要

Provided is a thermoplastic resin composition, which has excellent mechanical properties including impact strength and tensile strength, while showing excellent weather resistance and coloring property without the need for any additional coating or plating step. The thermoplastic resin composition comprises: (a) a graft copolymer comprising an acrylate rubbery polymer grafted with a styrenic monomer and an acrylonitrile monomer; (b) a graft copolymer comprising a conjugated diene rubbery polymer grafted with a styrenic monomer and an acrylonitrile monomer; (c) a terpolmer comprising an acrylate monomer, a styrenic monomer and an acrylonitrile monomer; and (d) a copolymer of a styrenic monomer with an acrylonitrile monomer, wherein the graft copolymer (a) comprises two kinds of acrylate rubbery polymers having different particle sizes.