Process for applying resin-containing coatings

Details Process for applying resin-containing coatings Process for applying resin-containing coatings

C - Chemistry, Metallurgy

25

D

204/24

C25D 15/02 (2006.01)

Patent

CA 1087335

ABSTRACT OF THE DISCLOSURE The present invention provides a process for applying to an object a coating containing a resin which is other than a polyfluorocarbon compound which comprises co-depositing from an electroplating bath, on an object serving as a cathode, a metal and resin particles having an average particle size of less than about 10 µm in a concentration of about 3 to 250 g per litre of bath liquid in the presence of both a cationic and a nonionic surface active compound which are other than the fluorocarbon type, in a molar ratio between 100:1 and 2:1 and in an amount which is at least 4 x 10-3 mmoles per m2 of the surface area of the particles. In one embodiment after the coating has dried it is subjected to at least one treatment selected from curing, sintering and melting. In another embodiment onto the resulting coating, serving as a cathode, there is subsequently deposited from an electroplating bath of a different composition a metal. The present invention provides a process by which the object to be coated can both be given cathodic protection and be provided with the desired coating in a single treatment. The process according to the invention provides coatings of extraordinarily high quality.

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