Alkaline cleaner for reducing stain on aluminum surfaces

Details Alkaline cleaner for reducing stain on aluminum surfaces Alkaline cleaner for reducing stain on aluminum surfaces

1991-11-12

1993-04-06

Shine, W. J.

Compositions

Fluent dielectric

N-containing

252156, 25217417, 25217419, C11D 706, C11D 732, C11D 1700, C11D 1002

Patent

active

052001148

ABSTRACT:
An aqueous alkaline cleaner and a process are described for reducing the discoloration of aluminum surfaces treated with are aqueous alkaline cleaner compositions. The process comprises including in the aqueous cleaner composition, an effective amount of at least one heterocyclic compound. Enhanced mobility of the aluminum surfaces also can be obtained when the heterocyclic compound is a solid particulate compound which is mixed with an oil prior to addition to the aqueous alkaline cleaner. In a preferred embodiment, the heterocyclic compounds are soluble pyrroles, imidazoles, pyrazoles, thiazoles or triazoles.

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