Modified amino resins
AssigneeAllnex Netherlands B.V.
InventorsRam B. Gupta, Urvee Y. Treasurer, Lawrence A. Flood, Barry A. Lawless
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Abstract
This invention relates to products H made by reaction of a cyclic alkyleneurea U, at least one multifunctional aldehyde A2, and at least one of (a) an aminoplast former M that is not the same as the cyclic alkyleneurea U, and (b) a monofunctional aldehyde A1, which product H is optionally etherified by reaction of at least a part of the hydroxyl groups formed by addition reaction of N—H groups and aldehyde groups, with an alcohol having from one to ten carbon atoms, and wherein glyoxal is present in the at least one multifunctional aldehyde A2, to processes for their preparation, and to a method of use thereof in coating compositions.
Claims11
A reaction product of at least one multifunctional aldehyde A2 with at least one melamine derivative that has at least one alkoxycarbonyl group attached to one or more of nitrogen atoms that do not form a part of the ring, formed by a reaction of an aldehyde group of the multifunctional aldehyde A2 with either an amino group of the at least one melamine derivative, or a carbamoyl group in the at least one melamine derivative, or both.
Dependencies are inferred from the claim text.