Abstract: A one component composition suitable for coating a substrate, including at least one crosslinker having a functionality thereon that is reactive with a functionality on at least one film forming polymer. The crosslinker includes at least one member selected from the group consisting of: blocked isocyanurates of isophorone diisocyanate; derivatives of blocked isocyanurates of isophorone diisocyanate; blocked biurets of isophorone diisocyanate; derivatives of blocked biurets of isophorone diisocyanate. The composition preferably includes a blend of this crosslinker with a second crosslinker, wherein the second crosslinker is at least one member selected from the group consisting of: blocked isocyanurates of hexamethylene diisocyanate; derivatives of blocked isocyanurates of hexamethylene diisocyanate; blocked biurets of hexamethylene diisocyanate; and derivatives of blocked biurets of hexamethylene diisocyanate.

Abstract: The invention relates to a process for the coating of electrically conducting substrates in which(1) the substrate is immersed in an aqueous electrocoating paint comprising at least one cathodically depositable resin,(2) the substrate is connected as cathode,(3) a film is deposited on the substrate using direct current,(4) the substrate is removed from the electrocoating paint and(5) the deposited paint film is baked.In this invention an electrically conducting substrate coated by a coating produced by plasma polymerization is employed as substrate.

Abstract: The invention relates to copolymers containing amino groups and having an amine number of 30 to 150 mg of KOH/g and a number-average molecular weight of 1,500 to 8,000, which can be prepared from copolymers containing alkyl ester groups by aminolysis with polyamines, processes for their preparation and their use in coating agents.

Abstract: The invention relates to a coating composition containingA) 50 to 90% by weight of one or more hydroxyl-containing addition polymers, prepared by copolymerization of ethylenically unsaturated monomers which are in part hydroxyalkyl esters of .alpha.,.beta.-ethylenically unsaturated carboxylic acids andB) 10 to 50% by weight of one or more amino resin crosslinking agentsthe sum of the proportions by weight of A and B being 100% by weight, and suitable auxiliaries and additives, optionally pigments, optionally fillers, organic solvent and an acid catalyst.The coating composition is one wherein the acid catalyst used comprises1) sulfo- or sulfonio[sic]-succinic esters which each contain at least one hydroxyl group and/or2) sulfo- or sulfonio[sic]-succinic polyesters which each contain at least one hydroxyl group.The invention furthermore relates to a process for the preparation of the coating compositions according to the invention and to their use as an automobile repair finish or as a stoving paint.

Abstract: The present invention provides a resin which is a mixture of a) the product of a diol and one or more diepoxides and b) an A-B-A block copolymer wherein A represents blocks of an epoxy/diol copolymer which is the reaction product of a diol and a diepoxide, and B represents blocks of an epoxy-capped, carboxyl-terminated polybutadiene or polybutadiene/acrylonitrile copolymer.Amine resins, produced by reaction of this resin with an amine are useful as the principal resin in electrocoating formulations which produce deposited films having excellent corrosion resistance and improved impact and chip resistance.