A metallic effect pigment with an additive, the additive being applied on at least a portion of the metallic effect pigment. The additive comprises, as structural units, at least one carboxylic acid having at least 4 carbon atoms and also at least one polyglycol ether. The carboxylic acid and the polyglycol ether are bonded covalently to one another. The disclosure is also directed to a method for producing these metallic effect pigments, and to the use thereof, as well as to a printing ink comprising the pigments.

Provided is a silver-coated copper powder that has a dendritic shape, that ensures excellent conductivity as a result of having an increased number of points of contact when silver-coated dendritic copper particles are in contact, prevents aggregation, and that can be suitably used in a conductive paste, and an electromagnetic wave shield. The silver-coated copper powder comprises amassed dendritic copper particles having a linearly grown main trunk and a plurality of branches branching from the main trunk. The surface of the copper particles is coated with silver. The main trunk and the branches of the copper particles have a flat plate shape in which the average cross-sectional thickness is more than 1.0 m but no more than 5.0 m. The silver-coated copper powder has a flat plate shape configured from a layered structure of one layer or a plurality of stacked layers. The average particle size (D50) is 1.0-100 m.

The present invention relates to a particularly effective protective coating for metallic objects, the coating method, and the special applications thereof. The particularly high protective effect is achieved by the adaptation of the inorganic fraction and the organic polymer fraction of the coating to the specific surface of the object. Further adjustments of the coating can be used for further optimization, for example of the protection properties or other product properties.

The present invention relates to a particularly effective protective coating for metallic objects, the coating method, and the special applications thereof. The particularly high protective effect is achieved by the adaptation of the inorganic fraction and the organic polymer fraction of the coating to the specific surface of the object. Further adjustments of the coating can be used for further optimization, for example of the protection properties or other product properties.

The present invention relates to colored effect pigments, in particular to those containing an organic color pigment layer, to a preparation method thereof and to the use of these pigments especially in a composition comprising the colored effect pigments.