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US 2010/0133107 A1Published application
Method for electrochemical deposition of monolayers on metallic surfaces and objects coated with an organic monolayer
AssigneeRamot at Tel-Aviv University Ltd.
InventorsNikolay Fishelson, Alexandra Inberg, Yosi Shacham-Diamand, Nathan Croitoru
Life of this patent
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Abstract
The present invention generally provides methods for the electrodeposition of organic monolayers onto the surfaces of a great variety of objects.
Claims30
-73. (canceled)
A method for deposition of a monolayer on a metallic surface, the method comprising:
- providing a metallic surface;
- contacting said metallic surface with a solution comprising (i) at least one organic compound having a surface-active group, and (ii) at least one non-gaseous oxidizing agent;
- and
- applying potential to said surface being in contact with said solution;
- whereby the at least one organic compound adsorbs onto the metallic surface to provide a monolayer-coated surface having high surface passivation.
2 more elements
A formulation for electrodeposition of organic monolayer on a surface of an object, said composition comprising
- (i) at least one organic compound of the general formula HnER, wherein:
- E is a reactive atom or a group of atoms;
- R is an organic moiety selected from C5-C30-alkyl, and C6-C10-aryl, and n is an integer from 1 to 3,
- (ii) at least one non-gaseous oxidizing agent;
- and
- (iii) at least one solvent.
3 more elements
A tarnish-resistant coated metallic object including;
- a metallic object, a organic monolayer coating on at least a part of a surface of the object, wherein the metallic object has a substantially constant reflectivity of more than 90% at 500 nm after exposure of the coated object to ambient air for a time period of at least one week.
A coated piece of jewelry including:
- a piece of jewelry;
- and an organic monolayer coating on at least part of a surface of the piece of jewelry, wherein the monolayer coating is adapted to prevent discoloration of the piece of jewelry after exposure of the coated piece of jewelry to ambient air for a time period of at least one week.
Dependencies are inferred from the claim text.