Brightener additive and bath for alkaline cyanide-free zinc electroplating
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United States of America Patent
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Dec 14, 2004
Grant Date -
May 6, 2004
app pub date -
Nov 5, 2002
filing date -
Nov 5, 2002
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Expired
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Abstract
An aqueous alkaline non-cyanide zinc electroplating bath containing zinc ions for producing bright electrodeposits of zinc and a brightening agent comprising a polymeric quaternary amine and a reducing sugar, and a compound that forms a reducing sugar upon hydrolysis.
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