| abstract |
The present invention relates to new combinations of substances such as vapor phase corrosion inhibitors for the protection of a broad spectrum of conventional metals, including iron, chromium, nickel, tin, zinc, aluminum, copper, magnesium and their alloys. , against corrosion in humid air climates. Combinations of substances include (1) at least one aliphatic monocarboxylic acid with 6 to 10 carbon atoms, (2) at least one aliphatic dicarboxylic acid with 6 to 10 carbon atoms and (3) a primary aromatic amide. They preferably also contain (4) an aliphatic hydroxybenzoic acid ester, in particular 4-hydroxybenzoic acid, and / or (5) a benzimidazole, in particular a substituted benzimidazole. Benzene Ring |