PROCESS FOR PRODUCING FLAME RETARDANT THERMOPLASTIC POLYESTER RESIN COMPOSITION

摘要

A process for producing a flame retardant thermoplastic resin composition which has an excellent flame retardancy while maintaining sufficiently high levels of mechanical properties including tensile property, flexural property and impact resistance which process comprises the following first step and second step: the first step: the step of melt-kneading the following components (A) and (B) to obtain a melt-kneaded composition (AB), the second step: the step of melt-kneading the melt-kneaded composition (AB) and the following component (C) to obtain the flame retardant thermoplastic polyester resin composition: component (A): an impact resistance improver, component (B): a flame retarder, component (C): a thermoplastic polyester resin.