Anticorrosive coating and method for obtaining same
AssigneeIndustrie De Nora S.P.A.
InventorsAlice CALDERARA, Valentina BONOMETTI
Life of this patent
Estimating the term…
Abstract
The invention relates to a coating for providing protection against interstitial corrosion for titanium surfaces such as flanges or other equipment used in highly aggressive electrolytic environments, for example hydrochloric acid electrolysis cells. The coating according to the invention comprises a passivating layer, on which a film of water-repellent material is applied. The invention further relates to a method for providing anticorrosive protection for flanges of electrochemical cells.
Claims11
Anticorrosive coating for valve metal substrates or alloys thereof comprising at least one passivating layer and at least one layer of a hydrophobic polymer applied on said at least one passivating layer, said at least one passivating layer comprising a mixture of at least one oxide of at least one platinum group metal and at least one valve metal oxide, said at least one passivating layer having a porosity partially occluded by said at least one layer of hydrophobic polymer applied on said at least one passivating layer.
Dependencies are inferred from the claim text.