Abstract: There are provided a composition for sealing a coated electric wire, containing a 2-cyanoacrylate compound, which gives a cured product not only excellent in heat resistance, moisture heat resistance, and thermal shock resistance but also excellent in flex resistance, wherein the 2-cyanoacrylate compound contains more than 50 mass % to not more than 99 mass % of a 2-cyanoacrylate having an ether bond in an ester residue, and not less than 1 mass % to less than 50 mass % of at least one alkyl 2-cyanoacrylate selected from a group consisting of isopropyl cyanoacrylate and n-butyl cyanoacrylate, relative to 100 mass % of the total of the 2-cyanoacrylate compound; and further a coated electric wire covered by the composition.

Abstract: The polyester-based resin composition according to the invention is a polyester resin composition, containing: at least a polyester resin (A); and a surfactant (B), in which the polyester resin (A) is a copolymer of a compound having a polyalkylene glycol with from 3 to 50 repeating units as a structure as a constituent component, the surfactant (B) is a nonionic surfactant having a structure of a polyalkylene glycol, and the contact angle of water is 30° or less.