Back to results
US 2006/0051588 A1Published application
Electrical devices having an oxygen barrier coating
AssigneeTyco Electronics Corporation
InventorMatthew Galla
Life of this patent
Estimating the term…
Abstract
An electrical device includes two electrodes and a conductive polymer layer, containing a mixture of a polymer and a conductive filler, separating the electrodes. A oxygen barrier material containing a thermosetting polymer component is present on the exposed surface of the conductive polymer layer that is not in contact with the laminar electrodes. The oxygen barrier material may be a polyamine-polyepoxide material, and may provide for acceptable barrier properties over a wide range of humidity levels.
Claims32
An electrical device, comprising:
- a first electrode;
- a second electrode;
- a conductive polymer layer separating the first and second electrodes and having an exposed surface not in contact with the first and second electrodes, the conductive polymer layer comprising a mixture of a polymer and a conductive filler;
- and
- a thermoset oxygen barrier material comprising a thermosetting polymer component on the exposed surface of the conductive polymer layer.
2 more elements
A method of making an electrical device, comprising:
- forming a laminate of a conductive polymer layer, a first electrode, and a second electrode, the conductive polymer layer comprising a mixture of a polymer and a conductive filler, and the laminate comprising an exposed surface between the first and second electrodes;
- and
- covering at least a portion of the exposed surface of the conductive polymer layer with a thermoset oxygen barrier material comprising a thermosetting polymer component.
An electrical device, comprising:
- a first electrode, a second electrode, and a conductive polymer layer separating the first and second electrodes and having an exposed surface not in contact with the first and second electrodes;
- the conductive polymer layer comprising a mixture of a polymer and a conductive filler comprising nickel;
- and
- a thermoset polyamine-polyepoxide oxygen barrier comprising a thermosetting polymer component on at least 90% of the exposed surface of the conductive polymer layer;
- wherein at least 65 weight percent of the polymer component of the oxygen barrier material comprises two or more groups selected from the group consisting of >N—CH2-Aryl-CH2—N<, >N-Aryl-N<, —O-Aryl-O—, —O(O═)C-Aryl-C(═O)O—, —O(O═)C—CH2-Aryl-CH2—C(═O)O—, and —CH2—CH(OH)—CH2—;
- wherein -Aryl- is selected from the group consisting of phenylene, naphthylene and anthracenyl.
3 more elements
Dependencies are inferred from the claim text.