Granted Patent B2

US 12,522,939 · App. 17/127,121 · Granted Jan 13, 2026

Inventors: Cody Coogan (Hoover, AL); Kevin R. Bordage (Westfield, MA); Blair A. Smith (South Windsor, CT); Mark A. Brege (Rockford, IL); Vijay V. Pujar (Rancho Santa Fe, CA); Claude J. Moreau (Vernon, CT); Steven Poteet (Ashland, MA)

Assignee: HAMILTON SUNDSTRAND CORPORATION

C25D11/246B32B3/12C23C22/82B32B2603/00

Abstract

Claims (11)

1 . A method of sealing an anodization layer comprising contacting the anodization layer with a solution at a temperature greater than freezing and less than 160° F. wherein the solution comprises graphene particles and a corrosion inhibitor;

wherein the corrosion inhibitor comprises a trivalent chromium compound and the solution further comprises an oxidizer;

wherein the oxidizer comprises peroxide or permanganate.

2 . The method of claim 1 , wherein the corrosion inhibitor is selected from the group consisting of trivalent chromium compounds, cerium compounds, praseodymium compounds, cesium compounds, lanthanum compounds, lithium compounds, yttrium compounds, and combinations thereof.

3 . The method of claim 1 , wherein the graphene particles are functionalized.

4 . The method of claim 3 , wherein the graphene particles are functionalized with an organo-functionalized alkoxysilane.

5 . The method of claim 1 , wherein the temperature is 60 to 160° F.

6 . The method of claim 1 , wherein the temperature is 60 to 90° F.

7 . The method of claim 1 , wherein the solution further comprises an oxidizer.

8 . The method of claim 1 , wherein the solution has a pH of 3 to 5.

9 . The method of claim 1 , further comprising contacting the anodization layer with an oxidizer after contact with the solution.

Assignments (3)

Continuity (1)

References Cited (16)