DISSOLVABLE AQUEOUS GELS WITH HIGH CHELANT LOADING
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United States of America Patent
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Issued Date -
Oct 1, 2015
app pub date -
Oct 26, 2012
filing date -
Oct 26, 2012
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Abandoned
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Abstract
Described are aqueous gel compositions for forming a chelant gel, comprising from 4 wt. % to 60 wt. % chelating agent selected from at least one of Ethylenediaminetetraacetic acid, Glutamic acid N,N-Diacetic acid, Methylglycinediacetic acid, and Nitrilotriacetic acid, 2 to 8 wt. % of a gel forming component, comprising a) carboxy methylcellulose, or b) a mixture comprising an ionic or acidic polysaccharide, a dispersible clay, and polyvinyl alcohol; and from 0.01 to 10 wt. % of a salt; provided that the chelant gel is at least partially dissolvable in water.
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