Fluorinated ester compound additives for architectural coatings

An article comprising a substrate and a dried coating thereon, where the dried coating results from drying a composition comprising (a) a coating base selected from a water-dispersed coating, an epoxy polymer coating, an alkyd coating, a Type I urethane coating, or an unsaturated polyester coating;

• and (b) a fluorinated ester compound represented by Formula (I):
• [AsY(CH2)x-Q-Z—(CH2)y—Rf]t (I)
• where
• A is independently —OH, a C1-C18 alkyl, —CH2OH, —CH2COOH, or (CH2CH2O)a(CH2CH(CH3)O)bH;
• a and b are independently 0 to 3, where a+b is 1 to 3;
• s is 0, 1, or 2;
• Y is a linear or branched alkylene organic group having t+s substitutions, optionally interrupted by ether oxygen —O— and optionally having one or more alkoxylate linking groups that bond with A or [(CH2)x-Q-Z—(CH2)y—Rf];
• x is 0 or 1;
• Q is —C(O)O— or —OC(O)—;
• Z is —(CH2)yS— or —(CH2CH2O)m(CH2CH(CH3)O)n—;
• y is 2 to 6;
• m and n are independently 0 to 6, where m+n is 1 to 6;
• Rf is a straight or branched perfluoroalkyl group of 2 to 20 carbon atoms, optionally interrupted by one or more —CH2—, —CFH—, ether oxygens —O—, or combinations thereof;
• and
• t is 2, 3, 4, 5, or 6, such that s+t is 2 to 6.