C - Chemistry – Metallurgy – 09 – J
Patent
C - Chemistry, Metallurgy
09
J
C09J 5/02 (2006.01) C08J 5/12 (2006.01) C23C 22/05 (2006.01) H05K 3/38 (2006.01)
Patent
CA 2407281
A process is described which is useful in treating metal surfaces to increase the adhesion of polymeric materials thereto. The process involves treating the metal surface with a pre-dip which comprises an aqueous solution with pH of from 5 to 12 and then further treating the metal surface with an adhesion-promoting composition comprising an acid, an oxidizer and a corrosion inhibitor.
L'invention concerne un procédé, utile dans le traitement de surfaces métalliques et conçu pour accroître l'adhérence de matériaux polymères sur ces surfaces. Ce procédé comprend les étapes suivantes consistant: à traiter la surface métallique en la trempant préalablement dans une solution aqueuse dont le pH se situe entre 5 et 12, puis à traiter ultérieurement la surface métallique à l'aide d'une composition favorisant l'adhérence et comprenant un acide, un oxydant et un inhibiteur de la corrosion.
Gowling Lafleur Henderson Llp
Macdermid Incorporated
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