Thin aluminum pigments narrow distribution of thickness, process for preparation thereof and use of the aluminum pigments

摘要

Aluminum pigments in flake form with narrow distribution of thickness, which are coated to menosparcialmente lubricant, characterized by that presentana) an average thickness h50 determined by counting thick electron microscopy debarrido 15 to 75 nm, b) a width relative the thickness distribution Δhdeterminada by counting thickness electronic conmicroscopía scanning, which is calculated by the corresponding curve pasoacumulado of the relative frequencies according to Dh = 100x (h90-h10) / h50, formula 30% less 70% and c) an X-ray diffractogram was measured in essentially plane-parallel configuration pigments, one or two main peaks which do not correspond to reflections [111].