CLEANING COMPOSITION FOR METAL ARTICLES
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United States of America Patent
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Issued Date -
Nov 5, 2015
app pub date -
Mar 15, 2013
filing date -
Dec 13, 2012
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Abstract
An aqueous cleaning composition includes at least one acid fluoride salt selected from ammonium bifluoride, sodium bifluoride, potassium bifluoride, calcium fluorophosphates, sodium fluorosilicates, and combinations of two or more thereof; at least one mineral acid adduct of urea; at least one surfactant; and at least one organic solvent. The cleaning composition is effective in removing deposited soil and corrosion products on a metal surface, particularly aluminum and aluminum alloy surfaces.
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