Plating

Details Plating Plating

1976-03-29

1977-09-20

Andrews, R. L.

Chemistry: electrical and wave energy

Processes and products

C25D 312

Patent

active

040495094

ABSTRACT:
The mixture present after reaction of an acetylenic diol and less than an equimolar amount of an alkylene oxide or the like oxirane compound, and comprising a proportion of unreacted acetylenic diol starting material together with proportions of the mono-substituted and di-substituted reaction products is used as a nickel-plating bath additive. Preferred ranges for the reaction mixture of diol/oxirane are 1 : 0.5. to 1 : 0.95, and a preferred combination is 2-butyne-1,4-diol and propylene oxide.

REFERENCES:
patent: 2863926 (1958-12-01), Carpenter et al.
patent: 3041256 (1962-06-01), Kleiner et al.
patent: 3268593 (1966-08-01), Carpenter et al.
patent: 3366557 (1968-01-01), Foulke et al.
patent: 3644535 (1972-02-01), Batty et al.
patent: 3711384 (1973-01-01), Lyde
patent: 3839465 (1974-10-01), Schneider et al.

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