Low amidine content polyvinylamine, compositions containing same and methods
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United States of America Patent
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May 14, 2013
Grant Date -
Dec 24, 2009
app pub date -
Jun 18, 2009
filing date -
Jun 19, 2008
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Abstract
Low amidine content poly(N-vinylformamide-co-vinylamine) (PVAm), is described, as well as processes of making and providing same in fresh or aged formats, and the usage of such polymer to increase papermaking retention and drainage rate and enhance paper dry strength, and other applications.
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