US Patent No: 5,609,692
Number of patents in Portfolio can not be more than 2000
Method of removing chloride ion or a compound thereof from a surface contaminated therewith
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Mar 11, 1997
Issued date -
May 5, 1994
filing date -
08/238,594
serial no -
In Force
status
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Abstract
A method of removing chloride ion, a compound thereof, or flash rust (metal oxide) from a surface contaminated with chloride. The method includes the steps of providing a surface contaminated with chloride ion, a compound thereof or flash rust, and applying a dilute aqueous solution containing an active agent selected from the group consisting of an amine, anionic surfactant, organic carboxylic acid, organic sulfonic acid, and mixtures thereof to the surface in an amount sufficient to remove substantially all of the chloride ion, compound thereof, or flash rust from the surface.
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First Claim
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 4,797,220 Descaling and anti-oxidizing composition and process therefor | 5 | 1988 | |
| 5,322,635 Soap compositions of carboxylic acids and amines useful in removal and prevention of scale | 17 | 1991 | |
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| 5,296,042 Composition and process for treating sheet steel | 3 | 1992 | |
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| 4,487,959 Vinyl acetate purification process | 3 | 1983 | |
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| 5,296,120 Apparatus for the removal of chloride from reinforced concrete structures | 19 | 1991 | |
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| 5,198,082 Process for rehabilitating internally reinforced concrete by removal of chlorides | 18 | 1989 | |
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| 5,268,092 Two water control system using oxidation reduction potential sensing | 24 | 1993 | |
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| 4,435,303 Descaling composition | 10 | 1983 | |
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| 4,225,564 Purification of rutile | 9 | 1979 | |
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| 5,228,959 Process for rehabilitating internally reinforced concrete by removal of chlorides | 9 | 1990 | |
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| 5,124,362 Method for removing organic foulants from anion exchange resin | 5 | 1987 | |
| 5,275,752 Method and product for inhibiting corrosion due to chlorides | 7 | 1992 | |