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Aqueous Coating



Published August 11, 2005
Aqueous Coating
From Rohm and haas
Patent No. U.S. 6,797,328 B2
Rohm and Haas has received a patent for a method for providing a coated substrate that is comprised of forming an aqueous coating composition that is comprised of an aqueous emulsion polymer. The polymer has a glass transition temperature (Tg) from greater than 20°C to 80°C, formed by the free radical polymerization of at least one ethylenically unsaturated nonionic acrylic monomer and zero-7.5%, by weight based on the total weight of the polymer, ethylenically unsaturated acid monomer in the presence of 0.01-one percent, by weight based on the total weight of the polymer, t-alkyl hydroperoxide, t-alkyl peroxide, or t-alkyl perester wherein the t-alkyl group includes at least five carbon atoms and, optionally, at least one other oxidant; applying the aqueous coating composition to the substrate; and drying or allowing the aqueous composition to dry.


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