MODIFIED COPPER-TIN ELECTROLYTE AND PROCESS FOR THE DEPOSITION OF BRONZE LAYERS
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United States of America Patent
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Issued Date -
Apr 21, 2011
app pub date -
Mar 31, 2009
filing date -
May 8, 2008
priority date (Note) -
Abandoned
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Abstract
The invention relates to a modified copper-tin electrolyte which is free of toxic constituents such as cyanides or thio compounds. The invention further relates to a process for the deposition of decorative bronze layers on consumer goods and industrial articles using the electrolyte of the invention. The electrolyte comprises an additive formed from epichlorohydrin and hexamethylenetetramine and contains carbonate or hydrogencarbonate ions.
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