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US 12,637,773 B2Granted
Chemical treatment liquid and method for chemical treatment of target metal material
AssigneeDipsol Chemicals Co., Ltd.
InventorsRyoji Iwanaga, Manabu Inoue
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Abstract
The objective of the present invention is to provide a chemical treatment liquid capable of forming a coating having improved corrosion resistance. The present invention relates to a chemical treatment liquid containing a water-soluble titanium complex ion, a water-soluble vanadium-containing ion, and a fluorine ion, wherein the concentration of the fluorine ion is 1.2 g/L or more.
Claims9
A chemical treatment liquid comprising a water-soluble titanium complex ion, a water-soluble vanadium-containing ion, and a fluorine ion, wherein a concentration of the fluorine ion is 1.2 g/L or more;
- and wherein the chemical treatment liquid is free of hexavalent chromium ions and trivalent chromium ions.
Dependencies are inferred from the claim text.