Abstract:
Provided are: a molded article which can be suitably used in electrical/electronic components and has excellent fogging resistance and electrical insulating properties; an insulating material comprising the same; and a method of improving the electrical insulating properties of a polyester resin composition.The molded article is obtained by molding a polyester resin composition comprising 0.001 to 1.0 part by mass of a sulfonamide compound metal salt or a sulfonimide compound metal salt with respect to 100 parts by mass of a polyester resin comprising not less than 50% by mass of a polybutylene terephthalate.