Patents Assigned to W. Canning Limited
  • Electroplating zinc or cadmium and additive composition therefor
    Patent number: 4062739
    Abstract: Zinc and cadmium are electrodeposited in the presence of the more or less complex mixture present after reacting (a) a compound containing a pyridine nucleus, especially a 3-substituted pyridine and (b) a compound containing an oxirane ring such as an alkylene or arylene oxide, and yield a bright electrodeposit.
    Type: Grant
    Filed: May 18, 1976
    Date of Patent: December 13, 1977
    Assignee: W. Canning Limited
    Inventors: Barrie Sidney James, Apolonious Wyszynski