Process for producing nickel-plated mouldings

Details Process for producing nickel-plated mouldings Process for producing nickel-plated mouldings

C - Chemistry, Metallurgy

25

D

C25D 3/18 (2006.01) C25D 3/14 (2006.01) C25D 3/16 (2006.01)

Patent

CA 2128022

Abstract of the Disclosure: Nickelized shaped articles are produced by electrodeposition of nickel from aqueous acidic baths containing as essential constituents one or more nickel salty, one or more inorganic acids and at least two brighteners by using as brightener a mixture of A) from 2 to 98% by weight of one or more cyclic N-allylammonium or N-vinylammonium compoundo I Image (I) where the nitrogen atom is part of a pyridine, quinoline or isoquinoline ring system which may additionally carry one or two C1- to C4-alkyl sub- stituents or halogen atoms, R1, R3 and R4 are each hydrogen or C1- to C4-alkyl, R2 is hydrogen or methyl, m is from 0 to 4, n is from 1 to 4, and X? is an n-valent inorganic or organic anion which promotes solubility in water, and B) from 98 to 2% by weight of one or more acetyleni- cally unsaturated compounds II R1 - C ? C - R5 (II) where R4 and R5 are identical or different and each is C1- to C4-alkyl substituted by hydroxyl, sulfo, amino, C1- to C4-alkylamino or di(C1- to C4-alkyl)- amino, although hydroxyl groups may have been reacted with from 1 to 10 mol of a C1- to C4-alkylene oxide or a mixture of such alkylene oxides and one of the radicals R4 and R5 may also be hydrogen or C1- to C4-alkyl.

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