Patent ID: 6479103
Filing Date: 2002-11-12
Classification: C08G,C09D

Abstract:
An electrically conductive and weldable anti-corrosive coating composition useful for coating metal surfaces comprising:(a) an organic binder comprised of (aa) at least one epoxy resin; (bb) at least one curing agent; and (cc) at least one blocked polyurethane resin; (b) an electrically conductive amount of one or more finely divided electrically conductive extenders selected from the group consisting of zinc, aluminum, graphite. molybdenum disulfide, carbon black, iron phosphide, tin-doped barium sulfate, antimony-doped barium sulfate, and mixtures thereof, and, optionally, one or more additional components selected from (i) up to 15 weight % of at least one silicate-based anti-corrosive pigment, and (ii) up to 30 weight % of at least one solvent, said electrically conductive amount being an amount sufficient to cause the coating composition to be electrically conductive when adhered to such metal surface.