Quaternary ammonium salts containing non-halogen anions as anticorrosive agents
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United States of America Patent
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Issued Date -
Nov 23, 2006
app pub date -
Dec 9, 2005
filing date -
May 28, 2003
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Abandoned
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Abstract
Disclosed are quaternary ammonium salts containing non-halogen anions (e.g., quaternary ammonium carbonates, bicarbonates, and mixtures thereof) as anti-corrosive agents. The invention relates to a method for inhibiting the corrosion of metal surfaces by applying a composition containing one or more quaternary ammonium carbonate or bicarbonate. The disclosure is also directed to anti-corrosive coatings for metal substrates containing these compounds, to metal substrates having these anticorrosive coatings, and to aqueous cleaning solutions containing these compounds.
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