Abstract: A spray coating process for application of water-dilutable paint systems which includes spraying a water-dilutable paint through a main nozzle which atomizes the paint and simultaneously therewith spraying at least one additional material from at least one lateral ancillary nozzle into and/or around the paint stream from the main nozzle. The additional material can be water to control the water content of the paint film, or it can be an additive such as a leveling aid for the paint. The spraying of the additional material into and around the paint stream while it is being projected to the surface to be painted causes the material to locate primarily at the surface of the atomized paint droplets.

Abstract: Use of low molecular weight oxazolines as neutralizing agents for anionic water-dilutable resins is described. Advantages obtained over use of the conventional amines as neutralizers include greater permissible film build-up without adverse results and films having improved water and alkali resistance without detriment to other advantageous properties.

Abstract: Process for producing water-emulsifiable paint binders based on select blends of alkyd resins and the improved emulsifiable paint binders therefrom are described. 30 to 75 percent by weight of aminoaldehyde resin is first reacted with 25 to 70 percent by weight of polyethylene glycols having an average molecular weight of from 500 to 3,000. Thereafter, 5 to 30 percent by weight of the polyethylene glycol modified aminoaldehyde resin is reacted with a blend of alkyd resins, one of the alkyd resins of the blend having a low acid number and another of the alkyd resins of the blend having a high acid number. The co-condensate of modified aminoaldehyde resin and alkyd resins when emulsified in water provides an emulsion with fine particles and excellent stability, rendering the emulsion particularly suitable for use in stoving paints.

Abstract: Nonionically/cationically stabilized aqueous emulsions of paint binders for use in stoving coating compositions and a process of producing such emulsions is described. The nonionic and cationic stabilization of the emulsion is accomplished by the inclusion in the binders of from about 1 - 20 percent by weight of nonionic structural units of the formula--O--[CH.sub.2 -- CH.sub.2 -- O].sub.n.sup.--n being an integer of from about 5 - 100, and 0.05 - 3 moles/kg of oxazoline structural units of the formula ##STR1## Coating compositions using the emulsion when applied to a surface as a film and thermally cured possess improved properties.

Abstract: An improved process and thermosetting coating compositions therefrom based on oil-free alkyds are described. Linear or pre-condensed polyesters carrying only terminal carboxyl groups which are the reaction product of n mols of hydroxy compounds with two free or latent hydroxyl groups and n + 1 mols of a dicarboxylic acid which will not form an anhydride are formed and then reacted with amine alcohols having the formulaHO--(CX.sub.2).sub.n --NH.sub.2wherein n is 2 or 3, and X is equal or different and is standing for hydrogen, alkyl, aryl, or hydroxy-alkyl. The reaction product is combined with 10 to 60 percent of an aminoplast resin. The coating compositions provide films with outstanding flexibility and hardness and which are highly resistant to solvent and weathering conditions. The coating compositions are soluble in conventional organic coating solvents and can be rendered water soluble.