Abstract: A process for producing a CED coating by cathodic electrodeposition of a coating on an electrically conductive substrate in a CED coating bath and thermal cross-linking of the CED coating film obtained, wherein before thermal cross-linking outside of the CED coating bath, the CED coating film is brought into contact with an aqueous preparation of at least one metal compound, wherein the at least one metal compound is a compound of a metal with an oxidation number of +2 or higher and is selected from the group consisting of compounds containing cations of the metal, compounds forming cations of the metal in aqueous medium, compounds containing cations containing the metal, compounds forming cations containing the metal in aqueous medium, compounds comprising outwardly neutral complexes of the metal, colloidal oxide of the metal and colloidal hydroxide of the metal, wherein the metal itself is selected from the group consisting of metals having atomic numbers of 20 to 83 with the express exclusion of chromium,

Abstract: A process for the production of coated substrates comprising the successive steps of: a) applying a coating composition A? onto one side A? of a metal sheet to form a coating layer A which is electrically insulating when cured and applying a coating composition B? onto the opposite side of the metal sheet to form coating layer B which is electrically conductive when cured, wherein each of the coating compositions A? and B? are applied by coil coating, b) curing the two coating layers A and B, c) removing and shaping sheet metal parts provided with the cured coating layer A on one side A? and with the cured coating layer B on the other side B?, d) optionally, assembling the coated shaped sheet metal parts to form a construction with outwardly directed sides A? and e) electrodepositing an electrodeposition (ED) coating layer onto the electrically conductive surfaces and curing of the ED coating layer.

Abstract: Waterborne cathodic electrodeposition (CED) coating agents comprising resin solids and optionally pigments, fillers, organic solvents and conventional coating additives, wherein said CED coating agents comprise at least one bismuth salt selected from the group consisting of bismuth hydroxycarboxylic acid salts and bismuth sulfonic acid salts in a quantity of 0.1 to 2.5 wt-%, calculated as bismuth and relative to resin solids content, together with at least one compound selected from the group consisting of yttrium and neodymium compounds in a quantity of 0.1 to 1 wt-%, calculated as metal and relative to resin solids content.

Abstract: Waterborne cathodic electrodeposition (CED) coating compositions comprising resin solids and optionally pigments, fillers and conventional coating additives, wherein said CED coating compositions comprise at least one bismuth compound in a quantity of 0.1 to 2.5 wt. %, calculated as bismuth and relative to resin solids content, together with at least one dicarboxylic acid selected from among acyclic dicarboxylic acids with 3 to 7 carbon atoms and dicarboxylic acids with 8 to 10 carbon atoms comprising a cyclic structural unit in a quantity of 3 to 15 equivalent-%, relative to the acid equivalents present in the CED coating composition.

Abstract: A process for the production of a CED (cathodic electrodeposition) coating with improved adhesion towards subsequent layers by cathodic electrodeposition of a coating layer of a CED coating composition onto an electrically conductive substrate and thermal curing by baking in an indirectly heated circulating air oven operated with a proportion of fresh air in the circulating air of the oven of 0 to 20 vol. %, wherein the CED coating composition used contains at least one water-soluble metal nitrate corresponding to a quantity of 1 to 10 mmol of nitrate per 100 g of resin solids content, wherein the metal is selected from the group consisting of metals of atomic numbers 20 to 83, with the exception of chromium, arsenic, rubidium, ruthenium, rhodium, palladium, cadmium, antimony, caesium, osmium, iridium, platinum, mercury, thallium and lead, and wherein at most 50 area-% of the CED-coated substrate surface are rinsed with water prior to thermal curing.

Abstract: A process for the production of coated substrates comprising the successive steps of: a) applying a coating composition A? onto one side A? of a metal sheet to form a coating layer A which is electrically insulating when cured and applying a coating composition B? onto the opposite side of the metal sheet to form coating layer B which is electrically conductive when cured, wherein each of the coating compositions A? and B? are applied by coil coating, b) curing the two coating layers A and B, c) removing and shaping sheet metal parts provided with the cured coating layer A on one side A? and with the cured coating layer B on the other side B?, d) optionally, assembling the coated shaped sheet metal parts to form a construction with outwardly directed sides A? and e) electrodepositing an ED coating layer onto the electrically conductive surfaces and curing of the ED coating layer.

Abstract: A process for the production of a CED (cathodic electrodeposition) coating with improved adhesion towards subsequent layers by cathodic electrodeposition of a coating layer of a CED coating composition onto an electrically conductive substrate and thermal curing by baking in an indirectly heated circulating air oven operated with a proportion of fresh air in the circulating air of the oven of 0 to 20 vol. %, wherein the CED coating composition used contains at least one water-soluble metal nitrate corresponding to a quantity of 1 to 10 mmol of nitrate per 100 g of resin solids content, wherein the metal is selected from the group consisting of metals of atomic numbers 20 to 83, with the exception of chromium, arsenic, rubidium, ruthenium, rhodium, palladium, cadmium, antimony, caesium, osmium, iridium, platinum, mercury, thallium and lead, and wherein at most 50 area-% of the CED-coated substrate surface are rinsed with water prior to thermal curing.

Abstract: A process for producing a CED coating by cathodic electrodeposition of a coating on an electrically conductive substrate in a CED coating bath and thermal cross-linking of the CED coating film obtained, wherein before thermal cross-linking outside of the CED coating bath, the CED coating film is brought into contact with an aqueous preparation of at least one metal compound, wherein the at least one metal compound is a compound of a metal with an oxidation number of +2 or higher and is selected from the group consisting of compounds containing cations of the metal, compounds forming cations of the metal in aqueous medium, compounds containing cations containing the metal, compounds forming cations containing the metal in aqueous medium, compounds comprising outwardly neutral complexes of the metal, colloidal oxide of the metal and colloidal hydroxide of the metal, wherein the metal itself is selected from the group consisting of metals having atomic numbers of 20 to 83 with the express exclusion of chromium,

Abstract: Cathodic electrodeposition coating agent containing 0.1 wt-% to 5 wt-%, based on the resin solids, of at least one polymer having an acid value of 20 to 100 mg KOH/g and a content of lateral and/or terminal aliphatic C5-C14-hydrocarbon radicals of 40 wt-% to 80 wt-%.

Abstract: Waterborne cathodic electrodeposition (CED) coating compositions comprising resin solids and optionally pigments, fillers and conventional coating additives, wherein said CED coating compositions comprise at least one bismuth compound in a quantity of 0.1 to 2.5 wt. %, calculated as bismuth and relative to resin solids content, together with at least one dicarboxylic acid selected from among acyclic dicarboxylic acids with 3 to 7 carbon atoms and dicarboxylic acids with 8 to 10 carbon atoms comprising a cyclic structural unit in a quantity of 3 to 15 equivalent-%, relative to the acid equivalents present in the CED coating composition.

Abstract: Waterborne cathodic electrodeposition (CED) coating agents comprising resin solids and optionally pigments, fillers, organic solvents and conventional coating additives, wherein said CED coating agents comprise at least one bismuth salt selected from the group consisting of bismuth hydroxycarboxylic acid salts and bismuth sulfonic acid salts in a quantity of 0.1 to 2.5 wt-%, calculated as bismuth and relative to resin solids content, together with at least one compound selected from the group consisting of yttrium and neodymium compounds in a quantity of 0.1 to 1 wt-%, calculated as metal and relative to resin solids content.

Abstract: Cathodic electrodeposition coating agent containing 0.1 wt-% to 5 wt-%, based on the resin solids, of at least one polymer having an acid value of 20 to 100 mg KOH/g and a content of lateral and/or terminal aliphatic C5-C14-hydrocarbon radicals of 40 wt-% to 80 wt-%.

Abstract: A process for electrodeposition coating electrically conductive substrates in continuous electrodeposition coating plants, wherein, in the event of a shutdown of the conveying means, conventionally a belt, all the substrates not in motion and immersed in the electrodeposition coating tank are, at the latest after a brief de-energized interruption, completely coated while ensuring at least the nominal deposition period at the nominal deposition voltage, and then the completely coated, still immersed substrates not in motion remain de-energized in the electrodeposition coating tank and, when the conveying means has restarted, the substrates remain de-energized until reaching the end of the electrodeposition coating tank and are removed therefrom.

Abstract: This invention is directed to a process for electrocoating bulk articles to provide a corrosion protective coating and comprises the following steps: (1) the bulk articles to be coated are placed in an electrically conductive receiving container and the container and bulk articles are electrocoated with an aqueous electrocoating composition containing a film forming binder and electrically conductive components; (2) baking the coated bulk articles and the receiving container to form an electrically conductive coating on the bulk articles and the container and removing the coated bulk articles from the container; and (3) repeating steps (1) and (2) at least once without any intermediate cleaning of the receiving container having an electrically conductive coating. The advantage of the novel process of this invention is that the receiving container can be used at least twice and up to six times without any intermediate cleaning or removal of the applied electrocoating layer.

Abstract: A two-component concentrate which includes an aqueous dispersion of a cathodically depositable binder having groups comprising active hydrogen that are cross-linkable using blocked polyisocyanate, as the binder component, and an anhydrous, organic solution of an oxime-blocked isocyanate-functional adduct of aromatic polyisocyanate and at least one compound comprising at least one group capable of addition towards isocyanate and at least one tertiary amino group, as the cross-linking component is used for the preparation of cathodic electrodeposition coating compositions.

Abstract: A two-component concentrate which includes an aqueous dispersion of a cathodically depositable binder having groups comprising active hydrogen that are cross-linkable using blocked polyisocyanate, as the binder component, and an anhydrous, organic solution of an oxime-blocked isocyanate-functional adduct of aromatic polyisocyanate and at least one compound comprising at least one group capable of addition towards isocyanate and at least one tertiary amino group, as the cross-linking component is used for the preparation of cathodic electrodeposition coating compositions.

Abstract: A process for preparing a multi-layer coating on an electrically conductive automotive body or an electrically conductive automotive body part by applying a cathodic electrodeposition coating layer, optionally a further coating layer and an outer clear coating, in which the cathodic electrodeposition coating layer of a cathodic electrodeposition coating composition is applied which, as the cathodic electrodeposition binder, contains a seed polymer with an amine value of 30 to 100 mg KOH/g and a hydroxyl value of 50 to 200 mg KOH/g, which can be prepared by radical polymerisation of 70 to 97 wt-% of a monomer mixture comprising hydroxy-functional olefinically unsaturated monomer and amino-functional olefinically unsaturated monomer in the presence of 3 to 30 wt-% of an aminoepoxy resin.

Abstract: A process for coating three-dimensional, electrically conductive substrates by applying a coating layer of a stoving coating composition substantially only to the exterior surfaces of the substrates at a layer thickness sufficient to electrically insulate such surfaces, stoving the coating layer and then coating the interior surfaces with an electrodeposition coating composition, wherein the stoving coating composition is characterised by a volume resistivity from 108 to 1011 Ohm·cm of applied and stoved coating layers of said composition.

Abstract: Cathodic electrodeposition coating compositions containing, in addition to conventional self-cross-linking or external cross-linking film-forming binders as well as optionally cross-linking agents, pigments, extenders, additives conventionally used in coating agents and solvents, from 0.1 to 5 wt-%, based on the resin solids content of the coating compositions, of one or more sulphonamides, when coated on a galvanized surface, produce coatings that are substantially free of pinholes.

Abstract: Process for preparing aqueous dispersions by free-radically initiated emulsion polymerization of one or more vinyl monomers in water in the presence of a cationically stabilized polyurethane as emulsifier.