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E.I. duPont de Nemours



Published June 13, 2006
Patent No. U.S. 7,022,778 B2
E.I. duPont de Nemours and Company has obtained a patent for a coating composition comprised of at least one low molecular weight reactive compound with a molecular weight (Mn) of 300-1,500 g/mol with at least one group selected from the group consisting of secondary amino group, tertiary amino group and a mixture thereof and at least two hydroxyl groups per molecule. The compound is obtained by reacting at least one hydroxyalkyl ester of an olefinically unsaturated carboxylic acid with two to 12 carbon atoms in the hydroxyalkyl residue with at least one lactone and with at least one hydroxy-functional amine having two to 10 carbon atoms per molecule and where the amino group is selected from the group consisting of primary amines, secondary amines and mixtures thereof and the hydroxy-functional amine is selected from the group consisting of hydroxy functional alkyl amines, hydroxy-functional cyclo alkylamines, hydroxy-functional alkoxyamines and any mixtures thereof; at least one cross-linking agent with functional groups reactive towards active hydrogen and optionally, at least one binder with functional groups containing active hydrogen.


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