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AssigneeRockwell International Corporation
InventorsPaul R. Newman, Leslie F. Warren, Jr., Edward F. Witucki
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Production of electrically conductive composites comprising a dielectric porous substance, e.g., fiberglass fabric, and a pyrrole polymer in the pores of such substance, by treating the porous substance with a liquid pyrrole, and then treating the resulting porous substance with a solution of a strong oxidant in the presence of a non-nucleophilic anion, such as ferric chloride. The pyrrole monomer is oxidized to a pyrrole polymer, which precipitates in the interstices of the porous material. Alternatively, the dielectric porous material can first be treated with a solution of strong oxidant and non-nucleophilic anion followed by treatment with liquid pyrrole, to precipitate an electrically conductive polypyrrole in the pores of the material. The resulting composite of porous material, e.g., fiberglass fabric, containing polypyrrole is electrically conductive while the other properties of such impregnated conductive porous material are substantially unaffected. Several treatments of the porous substance with the pyrrole and oxidant solutions can be carried out to increase the electrical conductivity of the composite.
A process for producing an electrically conductive composite which comprises the steps of
A process for producing an electrically conductive composite which comprises
A process for producing an electrically conductive composite which comprises
Dependencies are inferred from the claim text.