[Problem] To inhibit a poly(butylene terephthalate) resin composition containing a flame retardant based on a halogenobenzyl acrylate from corroding the molding machine or mold when molded and to inhibit insert-molded articles obtained using the poly(butylene terephthalate) resin composition from suffering the corrosion of the metallic terminals.[Solution] The problem is solved by a poly(butylene terephthalate) resin composition containing a flame retardant based on a halogenobenzyl acrylate, wherein the flame retardant is one produced through a step in which a halogenated aromatic compound, e.g., chlorobenzene, was used in a reduced amount.
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