Cationic paint additives
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United States of America Patent
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Nov 7, 2017
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app pub date -
Feb 28, 2014
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Mar 6, 2013
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Abstract
The invention relates to process for the reduction of corrosion of base metals comprising coating the surfaces of a base metal part with a cathodic electrodeposition paint comprising a cationic paint additive C which is a plastified reaction product of epoxide resins E and amines A, wherein the reaction products of epoxides E and amines A further comprise moieties of aromatic or aliphatic dihydroxy or polyhydroxy compounds D, and preferably also of fatty acids F having from six to thirty carbon atoms, and optionally, one or more olefinic unsaturations, and wherein at least a part of the plastifier P is incorporated by chemical reaction within the reaction products of epoxide resins E and amines A.
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