CORROSION PROTECTION OF BRONZES
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United States of America Patent
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app pub date -
Jun 18, 2008
filing date -
Jun 21, 2007
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Abandoned
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Abstract
A method and composition for enhancing corrosion resistance, wear resistance, and contact resistance of a substrate comprising a copper or copper alloy surface. The composition comprises a phosphorus oxide compound selected from the group consisting of a phosphonic acid, a phosphonate salt, a phosphonate ester, a phosphoric acid, a phosphate salt, a phosphate ester, and mixtures thereof; a nitrogen-containing organic compound selected from the group consisting of primary amine, secondary amine, tertiary amine, and aromatic heterocycle comprising nitrogen; and an alcohol.
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