Process and electrolytic bath for producing by electropolymerization a homogeneous and adherent polypyrrole coating on surfaces of oxidizable metals

The electro-polymerization for polypyrrole coating of oxidizable metal surfaces comprises electrolytic deposition from an eg. aqueous pyrrole solution, with or without stirring. Also claimed is a bath implementing the process. CLAIMED - The bath gives a homogeneous adhering coating, and the solution...

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Bibliographische Detailangaben
Hauptverfasser:	FERRAO DE PAIVA MARTINS, JOSE INACIO, BAZZAOUI, MOHAMMED, BAZZAOUI, EL ARBI, DE FATIMA FERRAO DE PAIVA MARTINS, LAURA
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON CORRECTING FLUIDS DYES FILLING PASTES INKS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	The electro-polymerization for polypyrrole coating of oxidizable metal surfaces comprises electrolytic deposition from an eg. aqueous pyrrole solution, with or without stirring. Also claimed is a bath implementing the process. CLAIMED - The bath gives a homogeneous adhering coating, and the solution incorporates ions of maleate (hydro succinate) (C4O5H4). Cette invention a comme objet la mise au point d'un procédé qui permets l'obtention de revêtements homogènes et adhérents de polypyrrole (PPy) sur des surfaces de métaux oxydables, en utilisant une solution aqueuse ou hydroalcoolique contenant du pyrrole et/ou des pyrroles substitués, avec ou sens agitation, caractérisé par la présence des ions tartrate ou malate, respectivement de formules chimiques C4O6H4 et C4O5H4.