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US 11,499,116 B2Granted
Friction reducing polyelectrolyte coating
AssigneeRaytheon Technologies Corporation
InventorsSeyed Reza Mahmoudi, Catalin G. Fotache
Life of this patent
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Abstract
A low friction coated article includes a first structure that has a first lubricated surface coated with a first polyelectrolyte coating. A second structure has a second lubricated surface with a second polyelectrolyte coating opposite the first lubricated surface. The first and second polyelectrolyte coatings include alternating layers of positively charged polyelectrolyte layers and negatively charged polyelectrolyte layers hydrated with a lubricant.
Claims20
A low friction coated article comprising:
- a first structure having a first lubricated surface coated with a first polyelectrolyte coating;
- and
- a second structure having a second lubricated surface with a second polyelectrolyte coating opposite the first lubricated surface;
- wherein the first and second polyelectrolyte coatings including alternating layers of positively charged polyelectrolyte layers and negatively charged polyelectrolyte layers both dehydrated from a liquid including water and hydrated with an oil based lubricant.
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A method of coating an article with a low friction coating, the method comprising:
- applying a polyelectrolyte coating to a lubricated surface on a structure, wherein the polyelectrolyte coating includes at least one positively charged polyelectrolyte layer adjacent at least one negatively charged polyelectrolyte layer;
- dehydrating a liquid including water from the polyelectrolyte coating;
- and
- filling the polyelectrolyte coating dehydrated from the liquid with an oil based lubricant.
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Dependencies are inferred from the claim text.