Metal finishing process and composition

C - Chemistry – Metallurgy – 11 – D

Patent

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Details

C11D 3/20 (2006.01) C11D 3/02 (2006.01) C11D 3/04 (2006.01) C23G 1/02 (2006.01) C23G 1/14 (2006.01)

Patent

CA 2229432

A novel composition, a kit for providing that composition, and method of treatment is disclosed. The composition comprises aqueous hydroxyacid, hydroxy ether, surfactant, and alkali hydroxide. In a preferred aspect, the composition comprises aqueous hydroxyacetic acid, dipropylene glycol-methyl ether, a surfactant blend of 9M tridecyl alcohol and poly'oxy-1,2-ethanediyl', alpha-'nonylphenyl'-omega-hydroxy-surfactant, and aqueous sodium hydroxide.

L'invention porte sur une nouvelle composition, une trousse servant à la préparer et le procédé de traitement associé. Ladite composition est faite d'un hydroacide aqueux, d'un hydroxyester, d'un tensioactif et d'un hydroxyde alcalin. Dans un aspect préféré, la composition comprend de l'acide hydroxyacétique aqueux, du dipropylène glycol-méthyl éther, un mélange de tensioactifs comprenant 9M alcool tridécylique et le poly'oxy-1,2-éthanediyl', alpha-'nonylphényl'-oméga-hydroxy, et un hydroxyde de sodium aqueux.

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