Sulfopolyesters for paper strength and process
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United States of America Patent
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Aug 20, 2013
Grant Date -
Oct 28, 2010
app pub date -
Apr 22, 2010
filing date -
Apr 24, 2009
priority date (Note) -
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Abstract
Sulfopolyester thermoplastic resins provide advantages in papermaking processes and in paper products including paperboard. Improvements in wet strength and dry strength of paper products are achieved by addition of sulfopolyester thermoplastic resins and cationic strength additives during the paper making process. The use of sulfopolyester thermoplastic resins in paper products also significantly enhances the repulpability of the paper.
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