Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Thamala Weerasinghe0
Michelle Carey0
Patrick Houlihan0
Susan George0
Bruce Leary0
Chantel Marise0
Karen Elsbury0
Lisa Madigan0
Date of Patent
June 9, 2009
Patent Application Number
11313061
Date Filed
December 19, 2005
Patent Primary Examiner
Patent 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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