C - Chemistry – Metallurgy – 23 – G
Patent
C - Chemistry, Metallurgy
23
G
C23G 1/12 (2006.01) C11D 7/08 (2006.01) C11D 7/10 (2006.01) C11D 7/22 (2006.01) C11D 7/26 (2006.01) C11D 7/32 (2006.01)
Patent
CA 2190183
A composition of matter is disclosed for cleaning an aluminum surface comprising a hydroxy organic acid; an organic complexing agent; a phosphorous oxide acid; a nitrogen oxide acid; optionally a urea compound; and optionally a compound having a fluoride ion.
La présente invention décrit une composition de matière permettant de nettoyer une surface en aluminium et comportant: un acide organique hydroxylique; un agent complexant organique; un acide d'oxyde phophoreux; un acide d'oxyde d'azote; éventuellement, un composé d'urée; et éventuellement un composé contenant un ion fluorure.
Mcneil Maynard W.
Reimbold Edward J.
Waldron King C.
Atotech Deutschland Gmbh
Borden Ladner Gervais Llp
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