초록 ▼

Electrical devices which comprise at least one metal electrode and a conductive polymer element in contact therewith, wherein the metal surface which contacts the conductive polymer has a roughened or otherwise treated surface to improve its adhesion to the conductive polymer. The metal electrode is

Electrical devices which comprise at least one metal electrode and a conductive polymer element in contact therewith, wherein the metal surface which contacts the conductive polymer has a roughened or otherwise treated surface to improve its adhesion to the conductive polymer. The metal electrode is preferably an electrodeposited foil. The conductive polymer preferably exhibits PTC behavior. The devices include heaters and circuit protection devices. The improved adhesion results in improved physical and electrical stability, and broadens the range of conductive polymer compositions which can be used in a number of important applications.

대표청구항 ▼

An electrical device which comprises (1) an element composed of a conductive polymer, and (2) at least one metal electrode having a microrough surface which (i) is in direct physical contact with the conductive polymer element, and (ii) has irregularities which protrude from the surface by a distanc

An electrical device which comprises (1) an element composed of a conductive polymer, and (2) at least one metal electrode having a microrough surface which (i) is in direct physical contact with the conductive polymer element, and (ii) has irregularities which protrude from the surface by a distance of 0.1 to 100 microns and have at least one dimension parallel to the surface which is at most 100 microns.