Electrically conductive textile materials and method for making same
First Claim
1. A method for imparting electrical conductivity to a textile material, which comprises contacting the textile material with an aqueous solution of an oxidatively polymerizable compound, selected from a pyrrole compound and an aniline compound, and an oxidizing agent capable of oxidizing said compound to a polymer, said contacting being carried out in the presence of a counter ion which imparts electrical conductivity to said polymer when fully formed, said contacting being under conditions at which the compound and the oxidizing agent react with each other to form a prepolymer in said aqueous solution before either the compound or the oxidizing agent are adsorbed by, or deposited on or in, the textile material, but without forming a conductive polymer, per se, in said aqueous solution;
- adsorbing onto the surface of said textile material the prepolymer and allowing the adsorbed prepolymer to polymerize while adsorbed on said textile material so as to uniformly and coherently cover the textile material with a conductive film of said polymer.
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Accused Products
Abstract
Fabrics are made electrically conductive by contacting the fabric under agitation conditions with an aqueous solution of a pyrrole or aniline compound, and an oxidizing agent and a doping agent or counter ion; and then epitaxially depositing onto the surface of the individual fibers of said fabric the in status nascendi forming polymer of the pyrrole or aniline compound so as to uniformly and coherently cover the fibers with an ordered conductive film of the polymerized pyrrole or aniline compound. Individual fibers and yarns can be similarly treated and then formed into fabrics. Products made by the process are also described.
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Citations
24 Claims
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1. A method for imparting electrical conductivity to a textile material, which comprises contacting the textile material with an aqueous solution of an oxidatively polymerizable compound, selected from a pyrrole compound and an aniline compound, and an oxidizing agent capable of oxidizing said compound to a polymer, said contacting being carried out in the presence of a counter ion which imparts electrical conductivity to said polymer when fully formed, said contacting being under conditions at which the compound and the oxidizing agent react with each other to form a prepolymer in said aqueous solution before either the compound or the oxidizing agent are adsorbed by, or deposited on or in, the textile material, but without forming a conductive polymer, per se, in said aqueous solution;
- adsorbing onto the surface of said textile material the prepolymer and allowing the adsorbed prepolymer to polymerize while adsorbed on said textile material so as to uniformly and coherently cover the textile material with a conductive film of said polymer.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
Specification