Electrically neutral dispersions and method of preparing same
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United States of America Patent
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Mar 22, 2016
Grant Date -
Sep 26, 2013
app pub date -
Mar 29, 2013
filing date -
Apr 7, 2006
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Abstract
The invention is a method of producing an essentially electrically neutral polymer dispersion, comprising a polymerizing one or more monomers in the presence of a nonionic surfactant, wherein the polymerization preferably occurs in the absence of ionic surfactants. The invention also includes methods of producing positively or negatively charged polymer dispersions comprising producing the essentially nonionic polymer dispersion and further adding a cationically-charged or anionically-charged surfactant or electrolyte. The invention further includes dispersions produced by the methods of the invention and polymer films and powders produced from these dispersions.
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