Sulfomethylamide-containing polymers
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United States of America Patent
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Jun 9, 1992
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N/A
app pub date -
Oct 23, 1991
filing date -
Dec 3, 1985
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Abstract
Polyacrylamide is reacted with formaldehyde and bisulfite at a temperture of at least about 100.degree. C. and at an initial reaction mixture pH of less than about 12, preferably about 3 to about 8, to produce sulfomethylpolyacrylamide.
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