Stain resistant water-borne coating composition
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United States of America Patent
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Jun 9, 2009
Grant Date -
May 11, 2006
app pub date -
Dec 19, 2005
filing date -
Sep 6, 1996
priority date (Note) -
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Abstract
Aqueous coating compositions are described where the binder includes an anionically stabilized polymeric dispersion. The monomers used to prepare the dispersion are acrylic acid and methacrylic acid as a carboxylic monomer and styrene, alpha methyl styrene or vinyl toluene as a hydrophobic high Tg aromatic monomer and an alkyl acrylate ester as a low Tg monomer. The relative weight proportions of the monomers are required to satisfy a formula. Blends of high and low Tg dispersions are also described. Paints formulated with the binders exhibit an excellent balance of stain resistance, tint strength and viscosity stability.
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