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Method for producing aqueous emulsions based on polyacrylates for protecting against corrosion and encapsulating lubricants on metal surfaces and the resulting emulsions
Method for producing aqueous emulsions based on polyacrylates for protecting against corrosion and encapsulating lubricants on metal surfaces and the resulting emulsions
The method includes the steps of: preparing an organic mixture of oil, monomers selected among acrylic acid-and methacrylic acid esters and at most 25% of an acrylic or methacrylic monomer having an acide, amide, amine or epoxy group; placing the mixture in mini-emulsion in an aqueous phase in the presence of a co-solvent, preferably of the polyalkylene glycol type; and copolymerising the monomers in emulsion. When the emulsion is applied in a thin coating on a metal surface, it provides simultaneously a dry appearance, efficient protection and a pre-lubricating effect.
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