Importance

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Abstract

Provided are a polymer layer using a conductive polymer solution composition and a film or sheet structure using the polymer layer. On a film or sheet substrate, an organic polymer layer of polyurethane, acryl, polyester or melamine with superior flexibility and durability is formed, and then a polythiophene-based conductive polymer layer including an aqueous solution of a polythiophene-based conductive polymer, an alcohol organic solvent, an amide organic solvent or an aprotic highly dipolar solvent and a binder selected from melamine resin, polyester, polyurethane, polyacryl resin and alkoxysilane is formed thereon. The resulting layer has high conductivity and high transparency as well as strong moisture resistance and durability. Since surface transparency and conductivity are sustained even under hot and humid environment, it is usefully applicable as upper and lower electrode film of a touch panel, electrode film of an inorganic electroluminescent (EL) device of a mobile phone, transparent electrode film of a display device or electromagnetic interference (EMI) shielding layer of a TV or a PC monitor

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First Claim