Tubular circuit connector

摘要

Disclosed is a rubber-based tubular circuit connector comprising; (A) an elongated tubular body of an electrically insulating rubber as a core tube; and (B1) a multiplicity of ring-formed contacting layers of a metal formed on an d around the core tube as arranged in the axial direction of the core tube at a regular pitch, each of the ring-formed contacting layers being electrically insulated from the adjacent cladding layer with intervention of (B2) a ring-formed coating layer of a polysilane compound on and around the surface of the core tube. The rubber-based tubular connector is prepared by (a) forming a coating layer of a polysilane compound on the whole outer surface of an elongated tubular body of an electrically insulating rubber; (b) irradiating the coating layer of a polysilane compound with ultraviolet light on a multiplicity of ring-formed areas arranged at a regular pitch in such a dose that the polysilane compound is converted into silica; and (c) forming a multiplicity of ring-formed plating layers of gold to serve as the contacting layer on the ultraviolet-irradiated ring-formed areas of the tubular body.