Chemistry: electrical and wave energy – Processes and products
Patent
1976-03-04
1977-06-21
Kaplan, G. L.
Chemistry: electrical and wave energy
Processes and products
C25D 322
Patent
active
040309878
ABSTRACT:
An article is zinc plated by electrodeposition in an alkaline zinc plating bath of ZnO and NaOH to which has been added, together with a small quantity of an aromatic aldehyde, a polyamine sulfone represented by the formula ##STR1## WHERE: EACH OF R.sub.1 and R.sub.2 is hydrogen, an allyl group, a straight-chain or branched-chain alkyl group having 1 to 16 carbon atoms, an aralkyl group, or a hydroxyalkyl group of the general formula HO--CH.sub.2).sub.m, where m is an integer of 1 to 6;
REFERENCES:
patent: 3974045 (1976-08-01), Takahashi et al.
Fujita Shigeru
Kaneda Toyohito
Murayama Koichi
Kabushiki Kaisha Japan Metal Finishing Company
Kaplan G. L.
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