C - Chemistry – Metallurgy – 23 – G
Patent
C - Chemistry, Metallurgy
23
G
C23G 1/22 (2006.01) C11D 1/68 (2006.01) C11D 1/83 (2006.01) C11D 3/20 (2006.01) C11D 3/37 (2006.01) C11D 3/60 (2006.01) C11D 7/06 (2006.01) C23G 5/00 (2006.01) C11D 1/34 (2006.01) C11D 1/72 (2006.01)
Patent
CA 2128684
Compositions and methods for cleaning and etching an aluminum surface with a low etch, low phosphate alkaline cleaner solution are dis- closed. 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.
Harpel William L.
Ouyang Jiangbo
Rodzewich Edward A.
Betzdearborn Inc.
Borden Ladner Gervais Llp
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