Inventors:
Ray F. Stewart - Redwood City CA
Michael Masia - Redwood City CA
Albert B. Macknick - Newark CA
Assignee:
Raychem Corporation - Menlo Park CA
International Classification:
C23F 1300
Abstract:
Methods of preventing corrosion in which current flows between the to-be-protected substrate and a distributed electrode whose electrochemically active surface is provided by an element which is composed of a conductive polymer and which is at least 500 microns thick. In one embodiment, the electrode is a flexible strip comprising a highly conductive core, e. g. of copper, and a conductive polymer element surrounding the core. In another embodiment, the electrode is a conductive polymer layer which conforms to the surface of the substrate but is separated from it by a layer of insulation.