| 摘要 |
PURPOSE:To obtain the titled composition capable of preventing tarnish or corrosion by harmful matter in an atmosphere by combining triazoles with a harmful gas capturing agent such as ureas or metallic salts. CONSTITUTION:This rust preventive composition contains one or more kinds of triazoles and one or more kinds of compounds selected among ureas, metallic salts, org. metallic salts, salt of metallic acids phosphates, ethylenediaminetetraacetates, phenols, imidazoles and pyrazolones as effective components. Triazoles contained in the rust preventive composition stuck directly to an article to be protected by coating, dipping or other method or volatilized from the composition stuck to a packing material, a crate or the like form a protective film on the surface of the metal to be protected. One or more kinds of compounds such as ureas as a harmful gas capturing agent, capture gases harmful to the metal. A remarkable rust preventing effect is produced by the synergistic effect of both the effective components.
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