Corrosion inhibiting sol-gel compositions
AssigneePRC-DeSoto International, Inc.
InventorEric L. Morris
Life of this patent
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Abstract
A composition for application to a metal substrate comprises a sol-gel or a silane and a corrosion inhibitor. The corrosion inhibitor comprises a lithium ion and/or an azole compound. A coated substrate includes the composition for application to a metal substrate and a coating on the composition. A method of fabricating a coated substrate comprises applying the composition to a substrate, curing the composition to form a conversion coating, and applying a coating on the conversion coating.
Claims18
A composition for application to a metal substrate, the composition comprising:
- a sol-gel;
- and
- a corrosion inhibitor comprising a lithium ion present in an amount of 0.02 g/1000 g composition to 12 g/1000 g composition and an alkali metal ion other than lithium.
A composition for application to a metal substrate, the composition comprising:
- a corrosion inhibitor comprising a lithium ion present in an amount of 0.02 g/1000 g composition to 12 g/1000 g composition, an alkali metal ion other than lithium, and a counter ion capable of forming a salt with the lithium ion, the alkali metal ion other than lithium, or combinations thereof, wherein the counter ion comprises a carbonate ion and/or a hydroxide ion;
- and
- a silane.
Dependencies are inferred from the claim text.