Back to results
US 6,686,057 B2Granted
Chromate-free coating for metal honeycomb
AssigneeHexcel Corporation
InventorYen-Seine Wang
Life of this patent
Estimating the term…
Abstract
A coating for metal sheets used in fabricating honeycomb structures. The coating includes a first layer located on the surface of the metal sheet. The first layer includes hydrated alumina dispersed in a binder. The coating may further include a second layer located on top of the first layer. The second layer includes a polymer sealant. The first and second layer form a coating which is corrosion resistant and bonds well to the node adhesives used in forming honeycomb structures.
Claims9
A coated structure comprising:
- a. a body comprising a honeycomb structure, said honeycomb structure having a surface comprising a metal;
- b. a coating on said surface, said coating comprising:
- a first layer located on the surface of said body, said first layer comprising hydrated alumina dispersed in a binder.
Dependencies are inferred from the claim text.