Abstract: Catalysts useful for the curing of, for example, cataphoretic deposition coating materials, including water-soluble bismuth compounds and an epoxy-amine adduct, the preparation of the bismuth compound involving acid being employed in a quantity such that there are less than 2 mol of dissociable protons per mole of bismuth.

Abstract: A curable compound carrying groups containing basic nitrogen, essentially comprising structural units derived fromA) a compound which contains, on average, at least one preferably terminal 2-oxo-1,3-diololane group per molecule, withB) a secondary diamine containing hydroxyl groups in the .beta.-positions to the secondary amino groups, it also being possible for this amine to contain blocked primary amino groups, and, if appropriate,C) a difunctional amine containing at least one free primary amino group and, if appropriate, at least one secondary amino group.

Abstract: Aminourethanes, a process for their preparation and their useThe invention relates to aminourethanes composed essentially of structural units derived from(A) polyamines of the general formula (I) an/or (II ##STR1## (B) if appropriate, further polyamines, (C) compounds containing, on average, at least one terminal 2-oxo-1,3-dioxolane group per molecule and(D) if appropriate, compounds having a monofunctional reaction, as chain stoppers.The invention also relates to a process for the preparation of these aminourethanes and to their use, in particular in paint formulations and especially in electrodeposition paints.