Powder comprising polymer-coated core particles comprising metals, metal oxides, metal nitrides or semimetal nitrides

A powder, comprising composite particles:

• wherein the composite particles, comprise:
• a core particle;
• and
• a coating of a precipitated polymer on the core;
• wherein
• a thickness of the precipitated polymer coating of the composite particle is from 1.5 to 35 μm,
• the core particle is at least one material selected from the group consisting of a metal, a metal nitride, a semimetal nitride and a metal oxide selected from the group consisting of Al2O3, ZrO2, ZnO, Bi2O3, CeO2, ITO (indium oxide doped with tin(IV) oxide), having a d50 median diameter of from 1 to 100 μm,
• the precipitated polymer of the coating comprises at least one polymer selected from the group consisting of nylon-11, nylon-12, PA1010, PA1012, PA1212 and PA1013,
• the melting point of the precipitated polymer in a first heating procedure is greater than in a second heating procedure, as measured by differential scanning calorimetry (DSC),
• a ratio of a d50 median diameter of the composite particles to the d50 median diameter of the core particles is 1.15 to 30, and
• the melting point of the precipitated coating polymer is obtainable when the polymer is exposed to an electromagnetic energy.