Aqueous metal cleaner

C - Chemistry – Metallurgy – 11 – D

Patent

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Details

C11D 3/26 (2006.01) C11D 1/00 (2006.01) C11D 1/835 (2006.01) C11D 3/02 (2006.01) C11D 3/10 (2006.01) C11D 3/28 (2006.01) C11D 3/43 (2006.01) C11D 11/00 (2006.01) C23G 1/14 (2006.01) C23G 1/16 (2006.01) C23G 1/19 (2006.01) C23G 1/20 (2006.01) C23G 1/24 (2006.01) C11D 1/44 (2006.01) C11D 1/52 (2006.01) C11D 1/58 (2006.01)

Patent

CA 2200750

A metal cleaning composition useful in aqueous solution comprises an alkalinity providing agent and a combination of surfactants comprising an ethoxylated thiol surfactant and a nitrogen-containing surfactant which reduces the odor of the thiol-containing surfactant. The aqueous cleaning solutions of this invention are particularly useful in metal parts washers typically placed in garages, service stations and the like in which the cleaning solution can be filtered and reused in the parts washer.

Une composition de nettoyage pour surfaces métalliques s'utilisant dans une solution aqueuse comprend un agent produisant une alcalinité et une combinaison de tensioactifs comprenant un tensioactif thiol éthoxylé et un tensioactif contenant de l'azote qui réduit l'odeur du tensioactif contenant du thiol. Les solutions de nettoyage aqueuses de cette invention sont notamment utilisées dans des dispositifs de nettoyage de pièces métalliques se trouvant généralement dans les garages, les stations-service et autres, et dans lesquels la solution de nettoyage peut être filtrée et réutilisée.

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