Direct electrolytic metallization of non-conducting substrates

Details Direct electrolytic metallization of non-conducting substrates Direct electrolytic metallization of non-conducting substrates

C - Chemistry, Metallurgy

25

D

C25D 5/54 (2006.01) H05K 3/42 (2006.01)

Patent

CA 2437105

The invention relates to a method for the direct electrolytic metallization of electrically non-conducting substrate surfaces comprising bringing the substrate surfaces into contact with a water-soluble polymer; treating the substrate surfaces with a permanganate solution; treating the substrate surfaces with an acidic aqueous solution or an acidic microemulsion of aqueous base containing at least one thiophene compound and at least one alkane sulfonic acid selected from the group comprising methane sulfonic acid, ethane sulfonic acid and ethane disulfonic acid; electrolytically metallizing the substrate surfaces.

L'invention concerne un procédé de métallisation électrolytique directe de surfaces de substrats non électroconducteurs, consistant à mettre les surfaces des substrats en contact avec un polymère soluble dans l'eau, à traiter les surfaces des substrats à l'aide d'une solution de permanganate, à traiter les surfaces des substrats à l'aide d'une solution aqueuse acide ou d'une microémulsion acide de base aqueuse contenant au moins un composé de thiophène et au moins un acide sulfonique d'alcane sélectionné dans le groupe comprenant l'acide sulfonique de méthane, l'acide sulfonique d'éthane et l'acide disulfonique d'éthane, puis à métalliser de manière électrolytique les surfaces des substrats.

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