Use of a Corrosion Inhibition Composition and Method for Inhibition of Corrosion of Metals or Metal Alloys

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This patent discloses an environmentally friendly corrosion inhibition composition based on malate salts (the salts of malic acid) with cations such as Na, K, Mg, Ca, Li, and others. The invention protects metals and metal alloys, especially against flash corrosion, by applying the malate-based compound as a liquid or solid formulation. The inhibitor forms an ultra-thin, non-toxic, biodegradable protective film that does not need to be removed before further metal processing or painting.

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• Protecting steel, cast iron, aluminum, magnesium, copper, and other metals from flash corrosion during storage or transport.
• Incorporating the corrosion inhibitor into water-based paint, coatings, and primers to prevent rust formation during and after application.
• Temporary corrosion protection for metals and alloys during manufacturing, forming, or shipping processes.
• Use in food-processing equipment due to the non-toxic and eco-friendly nature of malate-based inhibitors.
• Addition to aqueous or solvent-based cleaning and protective solutions for industrial metal parts.
• Use as an additive in quenching agents, marine coatings, metal drawing or forming, and protective films (latex, PMA, etc.).

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• Environmentally friendly and biodegradable—does not contain hazardous or toxic chemicals like nitrites or triazoles.
• Forms a very thin, transparent, and effective protective layer without altering the metal's properties or appearance.
• The protective film does not interfere with downstream processing (e.g., painting, coating) and even promotes adhesion.
• Applicable to a wide range of metals, including ferrous and non-ferrous metals and alloys.
• Effective in very low concentrations and over short exposure periods, reducing material costs and application times.
• Non-toxic and suitable for use in sensitive applications, such as the food industry.

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Patent Abstract

The present invention relates to the use of a corrosion inhibition composition for metals and/or metal containing surfaces, a method for inhibition of corrosion of metals and/or metal containing surfaces, the use of a liquid and a solid formulation comprising the corrosion inhibition composition.