Abstract: A corrosion inhibitor for metallic crown caps used in packed products. The corrosion inhibitor comprises: one or more zinc sources of food grade, such as zinc oxide; one or more acid sources like carboxylic acids, such as citrus acid; a pH regulator compouse, such as sodium hydroxide; and water, preferably soft water, as aqueous phase for the concentrate formed by the combination of said compounds, as well as soft water as a concentrate solvent for its application. A method and system for applying the corrosion inhibitor is also presented, which ensure that the corrosion inhibitor impregnates both the crown cap perimeter rim and the crown cap internal surface adjacent to the surface of the nozzle of the container.

Abstract: A lubricant for conveyor chains, the lubricant consists of a mixture of a quantity of fatty acid, a quantity of amine, a quantity of polyglycol, and a quantity of hydrocarbon. The lubricant of the invention uses a direct application, without dilution, and forms a layer or film of lubricant on the surface of the conveyor chain so that the application is discontinued, in long intervals between the applications.