Sol-gel coating compositions including corrosion inhibitor-encapsulated layered metal phosphates and related processes

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United States of America Patent

PATENT NO 11739225
SERIAL NO

16533647

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A layered tetravalent metal phosphate composition (e.g., a layered zirconium phosphate composition) and a first corrosion inhibitor (e.g., cerium (III), a vanadate, a molybdate, a tungstate, a manganous, a manganate, a permanganate, an aluminate, a phosphonate, a thiazole, a triazole, and/or an imidazole) is dispersed in an aqueous solution and stirred to form a first solution. A precipitate of the first solution is collected and washed to form a first corrosion inhibiting material (CIM), which includes the first corrosion inhibitor intercalated in the layered tetravalent metal phosphate composition. The first CIM is added to a first sol-gel composition to form a first CIM-containing sol-gel composition. The first CIM-containing sol-gel composition is applied on a substrate to form a CIM-containing sol-gel layer, cured by UV radiation, and thermally cured to form a corrosion-resistant coating. One or more additional sol-gel composition may be applied on the substrate.

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Patent OwnerAddress
THE BOEING COMPANY100 NORTH RIVERSIDE PLAZA CHICAGO IL 60606

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gaydos, Stephen P St. Louis, US 44 69
Ijeri, Vijaykumar S Bangalore, IN 27 41
Prakash, Om Bangalore, IN 84 238
Reddy, Dendi Sreenivas Hyderabad, IN 8 28
Soma, Raju Kalidindi Ramachandra Hyderabad, IN 11 31
Subasri, Raghavan Hyderabad, IN 8 28

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