Abstract: According to this invention we provide an aqueous coating composition, suitable for application to a cathodic substrate by electrodeposition, which comprises a dispersion in an aqueous medium in the presence of an amine-ionizing acid of cationically stabilized particles comprising:(1) 50 to 84% by weight on the combined weight of (1), (2) & (3) of an amine-epoxide reaction product.(2) 15 to 45% by weight based on the combined weight of (1), (2) & (3) of a blocked polyisocyanate as crosslinking agent; and(3) 1 to 12% by weight based on the combined weights of (1), (2) and (3) of a highly methylolated, highly alkylated melamine-formaldehyde resin, wherein on average at least 4.0 of the reactive hydrogen atoms per triazine ring are methylolated, at least 3.5 of these methylol groups are alkylated and the alkylating group is selected from C.sub.4-10 alkyl; the resin being substantially unreactive with the amine-epoxide-reaction product (1) at temperatures below 190.degree. C.

Abstract: A non-gelled amine-epoxide reaction product and acid addition salts thereof where the product is obtained by co-reacting;a) a secondary amine NHR.sup.1 R.sup.2, wherein R.sup.1 and R.sup.2 the same or different are C.sub.2 or C.sub.3 hydroxyalkyl groups,b) a polyepoxide,c) optionally a polyoxyalkylene polyamine,d) a product of the reaction between an epoxide with at least two epoxy groups and which contains less than 40% by weight of aromatic groups, and an amine of formula (1):NR.sup.3 R.sup.4 (CH.sub.2)n NH.sub.2 (1)in which n is from 2 to 6, and where R.sup.3 and R.sup.4, the same or different are methyl or ethyl, and optionally,e) a monoepoxidethe components of product (D) being chosen so that the non-gelled amine epxoide reaction product is a liquid at temperature above -5.degree. C.

Abstract: Non-gelled amine-epoxide reaction products are obtained by co-reacting a secondary amine, a polyoxyalkylene polyamine, a polyepoxide and a monoepoxide. The products are cross-linkable and are useful in aqueous coating compositions, particularly when applied to a substrate by cathodic electrodeposition.

Abstract: Non-gelled amine-epoxide reaction products are obtained by co-reacting a secondary amine, a polyoxyalkylene polyamine, a polyepoxide and optionally a monoepoxide. The products are crosslinkable and are useful in aqueous coating compositions, particularly when applied to a substrate by cathodic electrodeposition.

Abstract: A coating composition comprising:(i) a non-gelled amine-epoxide reaction product having units derived from:(a) at least one secondary amine(b) optionally a primary amine(c) units derived from a polyepoxide;(d) optionally capping units for the polyepoxide(e) optionally units derived from a polyoxyalkylene polyamine; and(f) optionally units derived from a monoepoxide;(ii) a liquid crosslinker being a mixture of 4,4-diphenylmethane diisocyanate and 4,4-diphenyl methane diisocyanate uretonimine derivative having the formula (3): ##STR1## and a mono alcohol; (iii) an aqueous carrier for the composition.

Abstract: Aqueous dispersions of film-forming polymer particles are prepared by first forming a cationically or anionically stabilized dispersion in water of a solution of preformed polymer or polymer plasticizer in initial polymerizable monomer; then polymerizing the monomer and forming disperse polymer particles; and thereafter adding further polymerizable monomer which is then polymerized. The Tg of polymer prepared from the further monomer is higher than that of polymer prepared from the initial monomer. The polymer dispersions are useful in providing thick electrodeposited coatings.