Low phosphorous, low etch cleaner and method
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United States of America Patent
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Aug 13, 1996
Issued Date -
N/A
app pub date -
Jul 18, 1995
filing date -
Mar 24, 1994
priority date (Note) -
Expired
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Abstract
Compositions and methods for cleaning and etching an aluminum surface with a low etch, low phosphate alkaline cleaner solution are disclosed. The preferred composition employs a stable combination of an alkali metal hydroxide, gluconic acid, a detergent source, an aluminum sequestrant, an oil emulsifier, a defoamer, and a hydrotrope.
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