Water treatment agent
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United States of America Patent
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Feb 25, 1997
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N/A
app pub date -
Aug 18, 1994
filing date -
Dec 18, 1990
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Abstract
Unsaturated compounds which can be dissolved in aqueous based solvents, such as ethylenic or acetylenic carboxylate or alcohols with less than 10 carbon atoms, especially maleic and/or acrylic acid or propargyl alcohol, are reacted with alkali metal phosphite in aqueous solution at neutral or alkaline pH in the presence of free radical initiators such as persulphate to form threshold scale and corrosion inhibitors.
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