Back to results
US 12,163,233 B2Granted
Surface treatment composition and methods for use
AssigneeCorrosion Exchange LLC
InventorLoren L. Hatle
Life of this patent
Estimating the term…
Abstract
Embodiments of the present disclosure provide a surface treatment composition and methods for using same. The composition for removing contaminants from a metallic surface, can include 3 wt % to 40 wt % of at least one bifunctional alkaline compound, 0.03 wt % to 10 wt % of at least one oxidizer comprising a metal salt, and water, where all weight percentages are based on the total weight of the composition.
Claims17
A composition for removing contaminants from a metallic surface, comprising:
- 3 wt % to 40 wt % of at least one bifunctional alkaline compound;
- 0.03 wt % to 10 wt % of at least one oxidizer derived from a metal salt;
- and
- 60 wt % to about 95 wt % water, wherein the composition comprises less than 50 ppm chlorine and has a pH of about 9 to about 11, and all weight percentages are based on the total weight of the composition.
1 more element
A composition having a pH of about 9 to about 11 for removing contaminants from a metallic surface, comprising:
- 10 wt % to 30 wt % of dimethylaminoethanol;
- 1 wt % to 3 wt % of sodium persulfate;
- optionally, up to 1 wt % of a surfactant;
- and
- water,
- wherein the composition comprises less than 50 ppm chlorine and all weight percentages are based on the total weight of the composition.
3 more elements
Dependencies are inferred from the claim text.