Processing

Please wait...

Settings

Settings

Goto Application

1. CA2223831 - FLEXIBLE ELECTRODE-BEARING ARTICLE

Note: Text based on automatic Optical Character Recognition processes. Please use the PDF version for legal matters

[ EN ]
The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:
1. An electrode-bearing article, comprising: a supporting material; an electrode material disposed over said supporting material, including over a region of said supporting material which is subject to flexing in use, rendering said electrode material susceptible to cracking at such region; and a conductive polymeric material disposed in contact with said electrode material in said region of said supporting subject to flexing in use, said conductive polymeric material: (a) comprising a blend of an intrinsically conducting polymer and a nonconductive polymer, and (b) having a Young's modulus of less than 100 kg/cm2.
2. An electrode-bearing article according to claim 1, wherein said intrinsically conducting polymer comprises polypyrrole, polythiophene, polyacetylene, poly(phenylene vinylene), poly(phenylene sulphide), polyp-phenylene), polyaniline, or poly(heterocycle vinylene).
3. An electrode-bearing article according to claim 2, wherein said intrinsically conducting polymer is polyaniline.
4. An electrode-bearing article according to any one of claims 1 to 3, wherein said non-conductive polymer comprises a polyolefin, polystyrene, poly(vinyl chloride), acrylonitrile-butadiene-styrene copolymer, an aliphatic polyamide, an aromatic polyamide, an acrylic polymer, a methacrylate polymer, polycarbonate, polysiloxane, polybutadiene, ethylene-vinyl acetate copolymer, an elastomer, or a fluoropolymer.
5. An electrode-bearing article according to any one of claims 1 to 4, wherein the conductive polymeric material has a Young's modulus of less than 10 kg/cm2.
6. An electrode-bearing article according to any one of claims 1 to 5, wherein the conductive polymeric material has a thickness of less than 1 ┬Ám.
7. An electrode-bearing article according to any one of claims 1 to 6, wherein the electrode-bearing article has a flexural stiffness which is less than twice that of the corresponding article without the conductive polymeric material.
8. An electrode-bearing article according to any one of claims 1 to 7, wherein said electrode material comprises indium tin oxide, indium oxide, tin oxide, antimony oxide, gold, gold-nickel alloy, or nickel.
9. An electrode-bearing article according to any one of claims 1 to 8, wherein said supporting material comprises polyester, poly(vinyl chloride), poly(ether sulfone), polycarbonate, polyimide, or poly(ether imide).
10. An electrode-bearing article according to claim 1, wherein said supporting material is poly(ethylene terephthalate), said electrode material is indium tin oxide, and said intrinsically conducting polymer is polyaniline.
11. An electrode-bearing article according to any one of claims 1 to 10, wherein said conductive polymeric material is disposed substantially over the entire surface of the electrode material.
12. An electrode-bearing article according to any one of claims 1 to 11, wherein said conductive polymeric material has a surface resistivity greater than 100 ohm/square.
13. An electrode-bearing article according to any one of claims 1 to 12, wherein said conductive polymeric material is disposed on the surface of said electrode material away from said supporting material.
14. An electrode-bearing article according to any one of claims 1 to 10, wherein said conductive polymeric material is disposed between said electrode material and said supporting material.