Patent ID: 6328816
Filing Date: 2001-12-11
Classification: C11D,C23G

Abstract:
A process for removing oily, greasy, or waxy soil from an aluminum surface, said process comprising steps of:(I) contacting the aluminum surface at a pH within the range of 4.5-6 with an aqueous liquid composition that is free of silicates and comprises:(A) an amine oxide surfactant; and(B) a component selected from the group consisting of molecules, exclusive of molecules that are part of component (A), that include a moiety corresponding to general chemical formula I: ##STR2##whereR represents a monovalent aliphatic moiety with the chemical formula --C.sub.n H.sub.(2n+1-y) F.sub.y, whereinn is an integer from 6 to 22, andy is an integer from 0 to (2n+1)for a sufficient time at a sufficient temperature with sufficient relative motion between the aluminum surface and the aqueous liquid composition to transfer at least part of the oily, greasy, or waxy soil from the metal surface to suspension or solution in the aqueous liquid composition.