Starch-containing compositions for use in imparting oil or grease resistance to paper
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United States of America Patent
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Sep 13, 2011
Grant Date -
Aug 14, 2008
app pub date -
Dec 26, 2007
filing date -
Feb 13, 2007
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Abstract
Herein disclosed is a composition containing a thinned starch having from about 0.1 wt % to about 10 wt % substitution with a hydrophobic substituent wherein, after cooking at from about 15% solids to about 30% solids, the composition has a viscosity of about 1000 cps at 35° C. Also disclosed herein is a paper product containing a substrate containing paper or paperboard and having a first surface and a second surface and a coating applied at least to substantially the entire first surface of the substrate, wherein the coating contains a thinned starch having from about 0.1 wt % to about 10 wt % substitution with a hydrophobic substituent wherein, after cooking at from about 15% solids to about 30% solids, the coating has a viscosity of about 1000 cps at 35° C., wherein the paper product contains from about 5 lb starch to about 500 lb starch per ton of substrate.
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