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US 4,533,682 AGranted
Imidazolidine-blocked amine polymers
AssigneeDeSoto, Inc.
InventorsAnthony J. Tortorello, Nestor P. Hansen, Kathryn M. Jarocki
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Abstract
Adducts of imidazolidine compounds, such as the reaction product of ethylene diamine with cyclohexanone, are provided with organic polyepoxides, especially with low molecular weight polyepoxides where the imidazolidine acts as a chain extender, and the adduct is reacted with an acid to protonate at least 50% of the amine groups in the adduct. These protonated adducts can be dispersed in water to form dispersion which cure with various curing agents. Aqueous electrocoating baths can be provided which electrodeposit at the cathode.
Claims17
A protonated adduct reaction product which is an adduct of:
- (1) an imidazolidine which is the reaction product of an unhindered ketone or aldehyde with a diprimary amine which is a mono- or poly-alkylene polyamine;
- with
- (2) an organic polyepoxide having a 1,2-epoxy equivalency of at least about 1.2;
- said imidizolidine being used in an amount sufficient to react with at least 10% of the 1,2-oxirane groups in said polyepoxide;
- and said adduct being reacted with
- (3) an acid to protonate at least 50% of the amine groups which are present.
3 more elements
Dependencies are inferred from the claim text.