The invention relates to corrosion-inhibiting substance combinations capable of evaporation or sublimation, containing at least: (1) substituted 1,4-benzoquinone, (2) aromatic or alicyclic substituted carbamate, (3) polysubstituted phenol, and (4) monosubstituted pyrimidine. These combinations preferably include 1-30 mass % of component (1), 5-40 mass % of component (2), 2-20 mass % of component (3), and 0.5-10 mass % of component (4), each relating to the total quantity of the substance combination. The components can be provided mixed together or dispersed in water, or also pre-mixed in solubilizer that can be mixed with mineral oils and synthetic oils, preferably an arylalkylether alcohol such as, e.g., phenoxyethanol. Such substance combinations can be used as vapor phase corrosion inhibitors in packaging or during storage in closed spaces for protecting common commodity metals such as iron, chrome, nickel, aluminum, copper and their alloys as well as galvanized steels, against atmospheric corrosion.

The invention relates to corrosion-inhibiting substance combinations capable of evaporation or sublimation, containing at least: (1) substituted 1,4-benzoquinone, (2) aromatic or alicyclic substituted carbamate, (3) polysubstituted phenol, and (4) monosubstituted pyrimidine. These combinations preferably include 1-30 mass % of component (1), 5-40 mass % of component (2), 2-20 mass % of component (3), and 0.5-10 mass % of component (4), each relating to the total quantity of the substance combination. The components can be provided mixed together or dispersed in water, or also pre-mixed in solubilizer that can be mixed with mineral oils and synthetic oils, preferably an arylalkylether alcohol such as, e.g., phenoxyethanol. Such substance combinations can be used as vapor phase corrosion inhibitors in packaging or during storage in closed spaces for protecting common commodity metals such as iron, chrome, nickel, aluminum, copper and their alloys as well as galvanized steels, against atmospheric corrosion.

Substance combinations are disclosed which include urea, at least one chitosan biopolymer having a degree of deacetylation of from 70% to 95%, and at least one dicarboxylic acid in aqueous solution. The substance combinations are useful as primers for the pretreating substrate surfaces, in particular flat or sheet-form, non-metallic substrates, which are provided as carrier materials for vapor phase corrosion inhibitors, to enable subsequent fixing to those substrate surfaces of vapor phase corrosion inhibitors from an aqueous or aqueous-alcoholic solution containing them. Certain embodiments of the substance combination include 0.1-2% by weight chitosan biopolymer, 10-25% by weight urea, and 0.5-2.5% by weight of a dicarboxylic acid, completely dissolved in deionized water. Yet a further, related aspect of the invention relates to a carrier material for vapor phase corrosion inhibitors, wherein the vapor phase corrosion inhibitors are fixed to a substrate surface pretreated with the substance combination.

A film for inhibiting corrosion including a polymeric resin and a vapor corrosion inhibitor film additive is described. The vapor corrosion inhibitor film additive includes compounds useful to protect metal surfaces from corrosion, such as ammonium or alkylammonium carboxylates and/or a triazole derivative. The film may include multiple layers.

A film for inhibiting corrosion including a polymeric resin and a vapor corrosion inhibitor film additive is described. The vapor corrosion inhibitor film additive includes compounds useful to protect metal surfaces from corrosion, such as ammonium or alkylammonium carboxylates and/or a triazole derivative. The film may include multiple layers.

A process and system to protect an apparatus such as parts, components, equipment, vehicles and the like from environmental effects such as corrosion or rust using the oil-based VCI and a water-based film. In one aspect of the disclosure, the water-based film can be applied on top of a layer of an oil-based VCI that has been applied on an apparatus such as a vehicle (described below). In other aspects of the disclosure, the oil-based VCI is mixed in with the water-based film and then applied on top of the apparatus. In still other aspect of the disclosure, the oil-based VCI is applied on top of a layer of water-based film that has been applied to the apparatus.

A process and system to protect an apparatus such as parts, components, equipment, vehicles and the like from environmental effects such as corrosion or rust using the oil-based VCI and a water-based film. In one aspect of the disclosure, the water-based film can be applied on top of a layer of an oil-based VCI that has been applied on an apparatus such as a vehicle (described below). In other aspects of the disclosure, the oil-based VCI is mixed in with the water-based film and then applied on top of the apparatus. In still other aspect of the disclosure, the oil-based VCI is applied on top of a layer of water-based film that has been applied to the apparatus.

A process and system to protect an apparatus such as parts, components, equipment, vehicles and the like from environmental effects such as corrosion or rust using the oil-based VCI and a water-based film. In one aspect of the disclosure, the water-based film can be applied on top of a layer of an oil-based VCI that has been applied on an apparatus such as a vehicle (described below). In other aspects of the disclosure, the oil-based VCI is mixed in with the water-based film and then applied on top of the apparatus. In still other aspect of the disclosure, the oil-based VCI is applied on top of a layer of water-based film that has been applied to the apparatus.

A process and system to protect an apparatus such as parts, components, equipment, vehicles and the like from environmental effects such as corrosion or rust using the oil-based VCI and a water-based film. In one aspect of the disclosure, the water-based film can be applied on top of a layer of an oil-based VCI that has been applied on an apparatus such as a vehicle (described below). In other aspects of the disclosure, the oil-based VCI is mixed in with the water-based film and then applied on top of the apparatus. In still other aspect of the disclosure, the oil-based VCI is applied on top of a layer of water-based film that has been applied to the apparatus.

A method to condense and liquefy vapor by introducing the vapor into a heat exchanger and bringing same into contact with a cooling body in the heat exchanger, wherein a droplet condensation promoting agent is directly added to the vapor introduced into the heat exchanger or to the heat exchanger. A droplet condensation promoting effect due to the droplet condensation promoting agent can be sufficiently manifested and condensation efficiency by droplet condensation can be improved by way of directly adding the droplet condensation promoting agent such as a film forming amine or the like to the vapor introduced into the heat exchanger or to the heat exchanger.