Electrodeless heterogeneous polypyrrole composite

A conductive composite is formed which consists of a host polymer and polypyrrole ("P") deposited on and within the host polymer. Instead of using a conductor as a starting substrate, an insulating polymer is at least partially impregnated with sufficient pyrrole (PY) monomer to become con...

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Bibliographische Detailangaben
Hauptverfasser:	BUHKS, EPHRAIM, MYERS, RONALD EUGENE
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G APPARATUS THEREFOR BASIC ELECTRIC ELEMENTS CABLES CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS CHEMISTRY COMPOSITIONS BASED THEREON CONDUCTORS ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY ELECTROFORMING ELECTROLYTIC OR ELECTROPHORETIC PROCESSES GENERAL PROCESSES OF COMPOUNDING INSULATORS LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PRINTED CIRCUITS PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS RESISTORS SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING-UP
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Beschreibung
Zusammenfassung:	A conductive composite is formed which consists of a host polymer and polypyrrole ("P") deposited on and within the host polymer. Instead of using a conductor as a starting substrate, an insulating polymer is at least partially impregnated with sufficient pyrrole (PY) monomer to become conductive after the PY is polymerized. The polymerization is a chemical oxidative polymerization ("dip-polymerization") which, if carried out under anhydrous conditions, transforms the insulating polymer into a semiconductive composite consisting essentially of the host polymer containing a first species of conductive PP and a Group VIII metal halide counterion; thereafter, the semiconductive composite, containing the counterion, is used to electrodeposit on it a second species of conductive PP. The composite with the two species of PP and anions is used for EMI shielding, and in a host of applications where a lightweight organic resistance heating element is desired, for example in de-icers forthe wings of an airplane, to melt snow on roof-tops and in gutters, and to warn a frigid seat in a vehicle.