US 2013/0171367 A1 · COATING COMPOSITIONS, APPLICATIONS THEREOF, AND METHODS OF FORMING

Abstract

A method to protect and modify surface properties of articles is disclosed. In one embodiment of the method, an intermediate layer is first deposited onto a substrate of the article. The intermediate layer has a thickness of at least 2 mils containing a plurality of pores with a total pore volume of 5 to 50% within a depth of at least 2 mils. A lubricant material is deposited onto the intermediate layer, wherein the lubricant material infiltrates at least a portion of the pores and forms a surface layer. The surface layer can be tailored with the selection of the appropriate material for the intermediate layer and the lubricant material, for the surface layer to have the desired surface tension depending on the application.

Claims27

Dependent claims

A method for providing protection and modifying the surface properties of article having a substrate as a surface, the method comprising

depositing onto at least a portion of the substrate an intermediate layer having a thickness of at least 2 mils containing a plurality of pores with a total pore volume of 5 to 50% within a depth of at least 2 mils;
depositing a lubricant material onto the intermediate layer for the lubricant material to form a surface layer and infiltrate at least a portion of the pores;
wherein the lubricant material is selected to provide the article with any of:
oleophobic and hydrophobic surface layer;
oleophobic and hydrophilic surface layer;
super-oleophobic surface layer;
super-hydrophobic surface layer;
and scale resistant surface layer.

5 more elements

A method for providing protection and modifying the surface properties of a an oil tubular good having a substrate as a surface, the method comprising

depositing onto at least a portion of the substrate of the oil tubular good by thermal spray intermediate layer having a thickness of at least 2 mils containing a plurality of pores with a total pore volume of 5 to 50% within a depth of at least 2 mils, the intermediate layer comprising a Ni-based or an Fe-based metal alloy;
depositing a lubricant material onto the intermediate layer for the lubricant material to infiltrate at least a portion of the pores, the lubricant material comprises ;
wherein the substrate coated with the intermediate layer and the lubricant material is characterized as having a surface tension of less than 30 dynes/cm and enhanced resistance to sand abrasion as characterized by a material volume loss of less than 75 cubic millimeters as measured according to ASTM G65-04 standardized method Procedure B.

Dependencies are inferred from the claim text.

Coating compositions, applications thereof, and methods of forming

Life of this patent

Coating compositions, applications thereof, and methods of forming

Life of this patent

Abstract

Claims27