| abstract |
Provided is a composition for a wire coating material, which can reduce the amount of a filler to be used as a flame retardant as much as possible and can give an insulated wire having high heat resistance and a high gel fraction without using electron beam crosslinking. Also provided are an insulated wire and a wire harness. A wire coating material is formed by using a composition for a wire coating material comprising (A) a silane-grafted polyolefin in which a silane coupling agent is grafted to a polyolefin, (B) an unmodified polyolefin, (C) a functional group-modified polyolefin obtained by modifying a polyolefin with at least one functional group selected from a carboxylic acid group, an acid anhydride group, an amino group, and an epoxy group, (D) a bromine-based flame retardant having a phthalimide structure, or a bromine-based flame retardant having a phthalimide structure and antimony trioxide, (E) a crosslinking catalyst, and (F) zinc sulfide, or zinc oxide and an imidazole-based compound. |