abstract |
(57) [Summary] [Object] An object of the present invention is to provide a novel insulated electric wire having excellent solvent resistance, heat-resistant softening property, and low-temperature solderability. [Structure] The present invention provides an insulated electric wire obtained by applying and curing a urethane acrylate UV-crosslinking resin composition comprising urethane acrylate oligomer (prepolymer), a photopolymerizable monomer and a photopolymerization initiator as an essential component on the conductor. The urethane acrylate oligomer (prepolymer) is characterized in that the isocyanate structure is tetramethylxylylene diisocyanate. |