Metal-resin composite body, wiring material, and method for producing metal-resin composite body

Abstract

An object is to provide a metal-resin composite body (1) having good high-frequency signal transmission characteristics and good adhesiveness between a synthetic resin portion (2) and a base portion (3). The present invention provides a metal-resin composite body including a base portion composed of a metal, and a synthetic resin portion that is bonded to at least a part of an outer surface of the base portion and that contains a fluororesin as a main component, in which a silane coupling agent which has a functional group containing a N atom or a S atom is present in the vicinity of an interface between the base portion and the synthetic resin portion. The silane coupling agent is preferably an aminoalkoxysilane, an ureidoalkoxysilane, a mercaptoalkoxysilane, a sulfide alkoxysilane, or a derivative thereof. The silane coupling agent is preferably an aminoalkoxysilane to which a modifying group is introduced. The modifying group is preferably a phenyl group. The fluororesin is preferably FEP, PFA, PTFE, or TFE/PDD.

Dependencies are inferred from the claim text.