Electrolyte for aluminium electroplating

C - Chemistry – Metallurgy – 25 – D

Patent

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C25D 3/44 (2006.01)

Patent

CA 2272254

The invention relates to an electrolyte for aluminium electroplating, which contains an organometallic aluminium complex of the formula (I): MF.2A1R3, whereby M stands for Na, K, Rb, Cs and R stands for C1-C4 alkyl group, in a solvent mixture comprising an aromatic or aliphatic hydrocarbon and a Lewis base. The invention further relates to the use of said electrolyte in the manufacture of decorative, corrosion-resistant aluminium coatings.

L'invention concerne un électrolyte pour dépôt d'aluminium par galvanoplastie, qui contient un complexe d'aluminium organométallique de la formule (I): MF.2AlR¿3?, dans laquelle M désigne Na, K, Rb, Cs et R désigne un groupe alkyle C¿1?-C¿4?, dans un mélange de solvants comprenant un hydrocarbure aromatique ou aliphatique et une base de Lewis. L'invention concerne en outre une utilisation dudit électrolyte pour produire des couches d'aluminium décoratives résistant à la corrosion.

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