APPLICATION OF AMINE FUNCTIONALIZED ORGANO SILANE FATTY ACID COMBO SYSTEM AS CORROSION INHIBITORS IN THE CLEAR EMISSIVE PERMANENT COATINGS ON ALUMINUM/ZINC ALLOY

摘要

According to the present invention, the composition for applying a clear or translucent emissive coating on an aluminum containing surface comprises in a dispersion a) 50 to 300 g/l of at least one of clear or translucent organic polymeric substances a) of a binder, and b) 30 to 300 g/l of sheet silicate pigments b) having a TE value for the thermal emissivity of at least 0.40, having a particle size distribution of which d₅₀ is in the range of 0.3 to 80 µm and having been comminuted, disintegrated, exfoliated or any combination of these to thin particles, and additionally comprises c) the reaction product of at least one amine-functionalized organosilane and/or oligomer and/or polymer thereof and at least one fatty acid, wherein the molar ratio of the amino group/s of the at least one amine-functionalized organosilane and/or oligomer and/or polymer thereof and of the at least one fatty acid is 1.2:1 to 1:2, and wherein the at least one amine-functionalized organosilane and/or oligomer and/or polymer thereof is linked to the at least one fatty acid by at least one carboxylic acid/amine salt bond and/or by at least one amide bond.