Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...
Reexamination Certificate
2007-01-16
2007-01-16
Webb, Gregory (Department: 1751)
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
For cleaning a specific substrate or removing a specific...
C205S305000, C106S014440
Reexamination Certificate
active
10723921
ABSTRACT:
This invention relates to solutions of dithionic acid and/or dithionate salts which use in metal finishing processes such those used for the cleaning, activating, electroplating, electroless plating, conversion coating and/or other pre-treatment or post-treatment of a metallic surface. In particular the solutions are a useful electrolyte for the electroplating of metallic coatings, especially, Sn, Cu, Ni, Zn and precious metals, onto metal or plastic substrates and/or other surfaces.
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Bodar Sandra L.
Gernon Michael D.
Arkema Inc.
Boyd Steven D.
Webb Gregory
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