| 摘要 |
<p>The present invention relates to the use of oxidic nanoparticles having an average particle size ranging from 2 to 2000 nm in combination with at least one polycationic polymer as a corrosion protection for metal surfaces, and to a method for protecting metal surfaces from corrosion, comprising the steps: i) providing a formulation comprising oxidic nanoparticles (a) and at least one polycationic polymer (b) and an application agent, ii) applying the formulation to the metal surface to be protected, and iii) optionally drying and/or heat treating the surface.</p> |
