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US 2026/0022468 A1Published application
Conversion coating solutions and methods of use therefor
AssigneeDuBois Chemicals, Inc.
InventorsJun Qing Zhang, Timothy L. Thornicroft
Life of this patent
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Abstract
A zirconium conversion coating solution may comprise an aqueous solution; non-fluoride containing zirconium compound; sulfuric acid; and an organic acid. A method of coating a substrate may comprise exposing the substrate to the zirconium conversion coating solution to form a coated substrate.
Claims20
A zirconium conversion coating solution comprising:
- an aqueous solution;
- a non-fluoride containing zirconium compound;
- sulfuric acid;
- and
- an organic acid.
2 more elements
A method of coating a substrate comprising exposing the substrate to a zirconium conversion coating solution to form a coated substrate, wherein the zirconium conversion coating solution comprises:
- an aqueous solution;
- a non-fluoride containing zirconium compound;
- sulfuric acid;
- and
- an organic acid.
2 more elements
Dependencies are inferred from the claim text.